1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2004-2013 HUBzero Foundation, LLC |
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4 | * |
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5 | * Author: Leif Delgass <ldelgass@purdue.edu> |
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6 | */ |
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7 | |
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8 | #include <cfloat> |
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9 | #include <cstring> |
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10 | #include <cassert> |
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11 | #include <cmath> |
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12 | #include <cstdlib> |
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13 | |
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14 | #include <limits> |
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15 | #include <set> |
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16 | |
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17 | #include <sys/types.h> |
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18 | #include <unistd.h> // For getpid() |
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19 | |
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20 | #include <GL/gl.h> |
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21 | |
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22 | #ifdef WANT_TRACE |
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23 | #include <sys/time.h> |
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24 | #endif |
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25 | |
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26 | #include <osgDB/FileUtils> |
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27 | #include <osgDB/FileNameUtils> |
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28 | #include <osgGA/StateSetManipulator> |
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29 | #include <osgGA/GUIEventAdapter> |
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30 | #include <osgViewer/ViewerEventHandlers> |
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31 | |
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32 | #include <osgEarth/Version> |
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33 | #include <osgEarth/FileUtils> |
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34 | #include <osgEarth/Cache> |
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35 | #include <osgEarthDrivers/cache_filesystem/FileSystemCache> |
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36 | #include <osgEarth/MapNode> |
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37 | #include <osgEarth/Bounds> |
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38 | #include <osgEarth/Profile> |
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39 | #include <osgEarth/Viewpoint> |
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40 | #include <osgEarth/GeoMath> |
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41 | #include <osgEarth/TerrainLayer> |
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42 | #include <osgEarth/ImageLayer> |
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43 | #include <osgEarth/ElevationLayer> |
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44 | #include <osgEarth/ModelLayer> |
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45 | #include <osgEarth/DateTime> |
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46 | #include <osgEarth/Pickers> |
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47 | #include <osgEarthAnnotation/AnnotationNode> |
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48 | #include <osgEarthAnnotation/PlaceNode> |
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49 | #include <osgEarthAnnotation/HighlightDecoration> |
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50 | #include <osgEarthAnnotation/ScaleDecoration> |
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51 | #include <osgEarthUtil/EarthManipulator> |
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52 | #if defined(USE_OSGEARTH_TRUNK) || OSGEARTH_MIN_VERSION_REQUIRED(2, 5, 1) |
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53 | #include <osgEarthUtil/Sky> |
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54 | #else |
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55 | #include <osgEarthUtil/SkyNode> |
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56 | #endif |
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57 | #include <osgEarthUtil/AutoClipPlaneHandler> |
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58 | #include <osgEarthUtil/MouseCoordsTool> |
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59 | #include <osgEarthUtil/UTMGraticule> |
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60 | #include <osgEarthUtil/MGRSGraticule> |
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61 | #include <osgEarthUtil/GeodeticGraticule> |
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62 | #include <osgEarthUtil/LatLongFormatter> |
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63 | #include <osgEarthUtil/MGRSFormatter> |
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64 | #include <osgEarthUtil/GLSLColorFilter> |
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65 | #include <osgEarthUtil/VerticalScale> |
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66 | #include <osgEarthDrivers/gdal/GDALOptions> |
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67 | #include <osgEarthDrivers/engine_mp/MPTerrainEngineOptions> |
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68 | |
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69 | #include "Renderer.h" |
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70 | #if 0 |
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71 | #include "SingleWindow.h" |
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72 | #endif |
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73 | #include "ScaleBar.h" |
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74 | #include "FileUtil.h" |
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75 | #include "Trace.h" |
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76 | |
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77 | #define MSECS_ELAPSED(t1, t2) \ |
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78 | ((t1).tv_sec == (t2).tv_sec ? (((t2).tv_usec - (t1).tv_usec)/1.0e+3) : \ |
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79 | (((t2).tv_sec - (t1).tv_sec))*1.0e+3 + (double)((t2).tv_usec - (t1).tv_usec)/1.0e+3) |
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80 | |
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81 | #define BASE_IMAGE "world.tif" |
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82 | #define PIN_ICON "placemark32.png" |
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83 | |
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84 | using namespace GeoVis; |
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85 | |
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86 | Renderer::Renderer() : |
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87 | _needsRedraw(false), |
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88 | _windowWidth(500), |
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89 | _windowHeight(500), |
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90 | _scaleBarUnits(UNITS_METERS) |
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91 | { |
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92 | TRACE("Enter"); |
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93 | |
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94 | _bgColor[0] = 0; |
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95 | _bgColor[1] = 0; |
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96 | _bgColor[2] = 0; |
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97 | //setMaximumFrameRateInHertz(15.0); |
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98 | // 100 Mbps |
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99 | setMaximumBitrate(1.0e8); |
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100 | _lastFrameTime = _minFrameTime; |
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101 | TRACE("Bandwidth target: %.2f Mbps", (float)(getMaximumBitrate()/1.0e6)); |
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102 | TRACE("Frame rate target: %.2f Hz", (float)getMaximumFrameRateInHertz()); |
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103 | TRACE("Frame time target: %.2f msec", _minFrameTime * 1000.0f); |
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104 | |
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105 | char *base = getenv("MAP_BASE_URI"); |
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106 | if (base != NULL) { |
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107 | _baseURI = base; |
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108 | TRACE("Setting base URI: %s", _baseURI.c_str()); |
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109 | } |
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110 | } |
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111 | |
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112 | osgGA::EventQueue *Renderer::getEventQueue() |
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113 | { |
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114 | if (_viewer.valid()) { |
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115 | osgViewer::ViewerBase::Windows windows; |
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116 | _viewer->getWindows(windows); |
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117 | if (windows.size() > 0) { |
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118 | return windows[0]->getEventQueue(); |
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119 | } |
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120 | } |
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121 | return NULL; |
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122 | } |
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123 | |
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124 | Renderer::~Renderer() |
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125 | { |
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126 | TRACE("Enter"); |
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127 | |
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128 | removeDirectory(_cacheDir.c_str()); |
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129 | |
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130 | TRACE("Leave"); |
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131 | } |
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132 | |
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133 | std::string Renderer::getBaseImage() |
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134 | { |
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135 | std::ostringstream oss; |
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136 | oss << _resourcePath << "/" << BASE_IMAGE; |
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137 | return oss.str(); |
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138 | } |
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139 | |
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140 | std::string Renderer::getPinIcon() |
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141 | { |
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142 | std::ostringstream oss; |
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143 | oss << _resourcePath << "/" << PIN_ICON; |
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144 | return oss.str(); |
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145 | } |
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146 | |
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147 | void Renderer::setupCache() |
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148 | { |
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149 | std::ostringstream dir; |
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150 | dir << "/tmp/geovis_cache" << getpid(); |
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151 | _cacheDir = dir.str(); |
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152 | const char *path = _cacheDir.c_str(); |
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153 | TRACE("Cache dir: %s", path); |
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154 | removeDirectory(path); |
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155 | if (!osgDB::makeDirectory(_cacheDir)) { |
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156 | ERROR("Failed to create directory '%s'", path); |
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157 | } |
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158 | } |
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159 | |
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160 | void Renderer::initColorMaps() |
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161 | { |
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162 | if (!_colorMaps.empty()) |
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163 | return; |
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164 | |
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165 | osg::TransferFunction1D *defaultColorMap = new osg::TransferFunction1D; |
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166 | defaultColorMap->allocate(256); |
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167 | defaultColorMap->setColor(0.00, osg::Vec4f(0,0,1,1), false); |
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168 | defaultColorMap->setColor(0.25, osg::Vec4f(0,1,1,1), false); |
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169 | defaultColorMap->setColor(0.50, osg::Vec4f(0,1,0,1), false); |
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170 | defaultColorMap->setColor(0.75, osg::Vec4f(1,1,0,1), false); |
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171 | defaultColorMap->setColor(1.00, osg::Vec4f(1,0,0,1), false); |
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172 | defaultColorMap->updateImage(); |
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173 | addColorMap("default", defaultColorMap); |
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174 | osg::TransferFunction1D *defaultGrayColorMap = new osg::TransferFunction1D; |
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175 | defaultGrayColorMap->allocate(256); |
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176 | defaultGrayColorMap->setColor(0, osg::Vec4f(0,0,0,1), false); |
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177 | defaultGrayColorMap->setColor(1, osg::Vec4f(1,1,1,1), false); |
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178 | defaultGrayColorMap->updateImage(); |
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179 | addColorMap("grayDefault", defaultGrayColorMap); |
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180 | } |
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181 | |
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182 | void Renderer::addColorMap(const ColorMapId& id, osg::TransferFunction1D *xfer) |
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183 | { |
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184 | _colorMaps[id] = xfer; |
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185 | } |
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186 | |
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187 | void Renderer::deleteColorMap(const ColorMapId& id) |
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188 | { |
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189 | ColorMapHashmap::iterator itr; |
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190 | bool doAll = false; |
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191 | |
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192 | if (id.compare("all") == 0) { |
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193 | itr = _colorMaps.begin(); |
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194 | doAll = true; |
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195 | } else { |
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196 | itr = _colorMaps.find(id); |
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197 | } |
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198 | |
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199 | if (itr == _colorMaps.end()) { |
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200 | ERROR("Unknown ColorMap %s", id.c_str()); |
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201 | return; |
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202 | } |
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203 | |
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204 | do { |
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205 | if (itr->first.compare("default") == 0 || |
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206 | itr->first.compare("grayDefault") == 0) { |
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207 | if (id.compare("all") != 0) { |
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208 | WARN("Cannot delete a default color map"); |
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209 | } |
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210 | continue; |
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211 | } |
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212 | |
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213 | TRACE("Deleting ColorMap %s", itr->first.c_str()); |
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214 | itr = _colorMaps.erase(itr); |
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215 | } while (doAll && itr != _colorMaps.end()); |
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216 | } |
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217 | |
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218 | void Renderer::setColorMapNumberOfTableEntries(const ColorMapId& id, |
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219 | int numEntries) |
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220 | { |
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221 | ColorMapHashmap::iterator itr; |
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222 | bool doAll = false; |
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223 | |
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224 | if (id.compare("all") == 0) { |
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225 | itr = _colorMaps.begin(); |
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226 | doAll = true; |
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227 | } else { |
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228 | itr = _colorMaps.find(id); |
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229 | } |
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230 | |
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231 | if (itr == _colorMaps.end()) { |
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232 | ERROR("Unknown ColorMap %s", id.c_str()); |
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233 | return; |
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234 | } |
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235 | |
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236 | do { |
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237 | itr->second->allocate(numEntries); |
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238 | itr->second->updateImage(); |
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239 | } while (doAll && ++itr != _colorMaps.end()); |
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240 | } |
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241 | |
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242 | void Renderer::initViewer() { |
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243 | if (_viewer.valid()) |
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244 | return; |
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245 | _viewer = new osgViewer::Viewer(); |
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246 | #if 1 |
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247 | osg::DisplaySettings *ds = _viewer->getDisplaySettings(); |
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248 | if (ds == NULL) { |
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249 | ds = osg::DisplaySettings::instance().get(); |
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250 | } |
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251 | ds->setDoubleBuffer(false); |
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252 | ds->setMinimumNumAlphaBits(8); |
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253 | ds->setMinimumNumStencilBits(8); |
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254 | ds->setNumMultiSamples(0); |
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255 | #endif |
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256 | _viewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); |
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257 | _viewer->getDatabasePager()->setUnrefImageDataAfterApplyPolicy(false, false); |
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258 | _viewer->setReleaseContextAtEndOfFrameHint(false); |
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259 | //_viewer->setLightingMode(osg::View::SKY_LIGHT); |
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260 | _viewer->getCamera()->setClearColor(osg::Vec4(_bgColor[0], _bgColor[1], _bgColor[2], 1)); |
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261 | _viewer->getCamera()->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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262 | _viewer->getCamera()->setNearFarRatio(0.00002); |
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263 | _viewer->getCamera()->setSmallFeatureCullingPixelSize(-1.0f); |
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264 | _stateManip = new osgGA::StateSetManipulator(_viewer->getCamera()->getOrCreateStateSet()); |
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265 | _viewer->addEventHandler(_stateManip); |
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266 | //_viewer->addEventHandler(new osgViewer::StatsHandler()); |
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267 | |
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268 | #ifdef DEBUG |
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269 | if (_viewer->getViewerStats() != NULL) { |
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270 | TRACE("Enabling stats"); |
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271 | _viewer->getViewerStats()->collectStats("scene", true); |
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272 | } |
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273 | #endif |
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274 | #if 0 |
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275 | osgViewer::ViewerBase::Windows windows; |
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276 | _viewer->getWindows(windows); |
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277 | if (windows.size() == 1) { |
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278 | windows[0]->setSyncToVBlank(false); |
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279 | } else { |
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280 | ERROR("Num windows: %lu", windows.size()); |
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281 | } |
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282 | #endif |
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283 | } |
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284 | |
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285 | void Renderer::finalizeViewer() { |
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286 | initViewer(); |
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287 | TRACE("Before _viewer->isRealized()"); |
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288 | if (!_viewer->isRealized()) { |
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289 | int screen = 0; |
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290 | const char *displayEnv = getenv("DISPLAY"); |
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291 | if (displayEnv != NULL) { |
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292 | TRACE("DISPLAY: %s", displayEnv); |
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293 | // 3 parts: host, display, screen |
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294 | int part = 0; |
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295 | for (size_t c = 0; c < strlen(displayEnv); c++) { |
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296 | if (displayEnv[c] == ':') { |
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297 | part = 1; |
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298 | } else if (part == 1 && displayEnv[c] == '.') { |
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299 | part = 2; |
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300 | } else if (part == 2) { |
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301 | screen = atoi(&displayEnv[c]); |
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302 | break; |
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303 | } |
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304 | } |
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305 | } |
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306 | TRACE("Using screen: %d", screen); |
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307 | #ifdef USE_OFFSCREEN_RENDERING |
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308 | #ifdef USE_PBUFFER |
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309 | osg::ref_ptr<osg::GraphicsContext> pbuffer; |
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310 | osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; |
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311 | traits->x = 0; |
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312 | traits->y = 0; |
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313 | traits->width = _windowWidth; |
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314 | traits->height = _windowHeight; |
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315 | traits->red = 8; |
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316 | traits->green = 8; |
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317 | traits->blue = 8; |
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318 | traits->alpha = 8; |
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319 | traits->windowDecoration = false; |
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320 | traits->pbuffer = true; |
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321 | traits->doubleBuffer = true; |
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322 | traits->sharedContext = 0; |
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323 | |
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324 | pbuffer = osg::GraphicsContext::createGraphicsContext(traits.get()); |
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325 | if (pbuffer.valid()) { |
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326 | TRACE("Pixel buffer has been created successfully."); |
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327 | } else { |
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328 | ERROR("Pixel buffer has not been created successfully."); |
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329 | } |
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330 | osg::Camera *camera = new osg::Camera; |
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331 | camera->setGraphicsContext(pbuffer.get()); |
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332 | camera->setViewport(new osg::Viewport(0, 0, _windowWidth, _windowHeight)); |
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333 | GLenum buffer = pbuffer->getTraits()->doubleBuffer ? GL_BACK : GL_FRONT; |
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334 | camera->setDrawBuffer(buffer); |
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335 | camera->setReadBuffer(buffer); |
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336 | _captureCallback = new ScreenCaptureCallback(); |
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337 | camera->setFinalDrawCallback(_captureCallback.get()); |
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338 | _viewer->addSlave(camera, osg::Matrixd(), osg::Matrixd()); |
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339 | #else |
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340 | _viewer->getCamera()->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); |
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341 | osg::Texture2D* texture2D = new osg::Texture2D; |
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342 | texture2D->setTextureSize(_windowWidth, _windowHeight); |
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343 | texture2D->setInternalFormat(GL_RGBA); |
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344 | texture2D->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::NEAREST); |
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345 | texture2D->setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::NEAREST); |
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346 | |
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347 | _viewer->getCamera()->setImplicitBufferAttachmentMask(0, 0); |
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348 | _viewer->getCamera()->attach(osg::Camera::COLOR_BUFFER0, texture2D); |
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349 | //_viewer->getCamera()->attach(osg::Camera::DEPTH_BUFFER, GL_DEPTH_COMPONENT24); |
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350 | _viewer->getCamera()->attach(osg::Camera::PACKED_DEPTH_STENCIL_BUFFER, GL_DEPTH24_STENCIL8_EXT); |
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351 | _captureCallback = new ScreenCaptureCallback(texture2D); |
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352 | _viewer->getCamera()->setFinalDrawCallback(_captureCallback.get()); |
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353 | _viewer->setUpViewInWindow(0, 0, _windowWidth, _windowHeight, screen); |
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354 | #endif |
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355 | #else |
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356 | _captureCallback = new ScreenCaptureCallback(); |
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357 | _viewer->getCamera()->setFinalDrawCallback(_captureCallback.get()); |
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358 | #if 1 |
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359 | _viewer->setUpViewInWindow(0, 0, _windowWidth, _windowHeight, screen); |
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360 | #else |
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361 | SingleWindow *windowConfig = new SingleWindow(0, 0, _windowWidth, _windowHeight, screen); |
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362 | osg::DisplaySettings *ds = windowConfig->getActiveDisplaySetting(*_viewer.get()); |
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363 | ds->setDoubleBuffer(false); |
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364 | ds->setMinimumNumAlphaBits(8); |
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365 | ds->setMinimumNumStencilBits(8); |
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366 | ds->setNumMultiSamples(0); |
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367 | windowConfig->setWindowDecoration(false); |
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368 | windowConfig->setOverrideRedirect(false); |
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369 | _viewer->apply(windowConfig); |
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370 | #endif |
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371 | #endif |
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372 | _viewer->realize(); |
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373 | initColorMaps(); |
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374 | // HACK: This seems to initialize something required for properly |
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375 | // mapping mouse coords |
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376 | assert(getEventQueue() != NULL); |
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377 | getEventQueue()->mouseMotion(_windowWidth/2, _windowHeight/2); |
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378 | } |
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379 | } |
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380 | |
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381 | void Renderer::initControls() |
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382 | { |
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383 | if (_hbox.valid()) |
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384 | return; |
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385 | _hbox = |
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386 | new osgEarth::Util::Controls::HBox(osgEarth::Util::Controls::Control::ALIGN_RIGHT, |
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387 | osgEarth::Util::Controls::Control::ALIGN_BOTTOM, |
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388 | osgEarth::Util::Controls::Gutter(0, 2, 2, 0), 2.0f); |
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389 | _copyrightLabel = |
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390 | new osgEarth::Util::Controls::LabelControl("Map data © 2014 ACME Corp.", 12.0f); |
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391 | _copyrightLabel->setForeColor(osg::Vec4f(1, 1, 1, 1)); |
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392 | _copyrightLabel->setHaloColor(osg::Vec4f(0, 0, 0, 1)); |
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393 | _copyrightLabel->setEncoding(osgText::String::ENCODING_UTF8); |
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394 | _scaleLabel = |
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395 | new osgEarth::Util::Controls::LabelControl("- km", 12.0f); |
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396 | _scaleLabel->setForeColor(osg::Vec4f(1, 1, 1, 1)); |
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397 | _scaleLabel->setHaloColor(osg::Vec4f(0, 0, 0, 1)); |
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398 | _scaleBar = |
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399 | new osgEarth::Util::Controls::Frame(); |
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400 | _scaleBar->setVertFill(true); |
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401 | _scaleBar->setForeColor(osg::Vec4f(0, 0, 0, 1)); |
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402 | _scaleBar->setBackColor(osg::Vec4f(1, 1, 1, 0.6)); |
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403 | _scaleBar->setBorderColor(osg::Vec4f(0, 0, 0 ,1)); |
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404 | _scaleBar->setBorderWidth(1.0); |
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405 | _hbox->addControl(_copyrightLabel.get()); |
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406 | _hbox->addControl(_scaleLabel.get()); |
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407 | _hbox->addControl(_scaleBar.get()); |
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408 | #ifdef USE_OSGEARTH_TRUNK |
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409 | osgEarth::Util::Controls::ControlCanvas::getOrCreate(_viewer.get())->addControl(_hbox.get()); |
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410 | #else |
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411 | osgEarth::Util::Controls::ControlCanvas::get(_viewer.get(), true)->addControl(_hbox.get()); |
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412 | #endif |
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413 | // Install an event callback to handle scale bar updates |
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414 | // Can't use an update callback since that will trigger |
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415 | // constant rendering |
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416 | _mapNode->setEventCallback(new MapNodeCallback(this)); |
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417 | } |
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418 | |
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419 | void Renderer::setGraticule(bool enable, GraticuleType type) |
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420 | { |
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421 | if (!_mapNode.valid() || !_sceneRoot.valid()) |
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422 | return; |
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423 | if (enable) { |
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424 | if (_graticule.valid()) { |
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425 | _sceneRoot->removeChild(_graticule.get()); |
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426 | _graticule = NULL; |
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427 | } |
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428 | switch (type) { |
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429 | case GRATICULE_UTM: { |
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430 | osgEarth::Util::UTMGraticule *gr = new osgEarth::Util::UTMGraticule(_mapNode.get()); |
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431 | _sceneRoot->addChild(gr); |
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432 | _graticule = gr; |
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433 | } |
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434 | break; |
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435 | case GRATICULE_MGRS: { |
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436 | osgEarth::Util::MGRSGraticule *gr = new osgEarth::Util::MGRSGraticule(_mapNode.get()); |
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437 | _sceneRoot->addChild(gr); |
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438 | _graticule = gr; |
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439 | } |
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440 | break; |
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441 | case GRATICULE_GEODETIC: |
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442 | default: |
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443 | osgEarth::Util::GeodeticGraticule *gr = new osgEarth::Util::GeodeticGraticule(_mapNode.get()); |
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444 | osgEarth::Util::GeodeticGraticuleOptions opt = gr->getOptions(); |
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445 | opt.lineStyle()->getOrCreate<osgEarth::Symbology::LineSymbol>()->stroke()->color().set(1,0,0,1); |
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446 | gr->setOptions(opt); |
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447 | _sceneRoot->addChild(gr); |
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448 | _graticule = gr; |
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449 | } |
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450 | } else if (_graticule.valid()) { |
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451 | _sceneRoot->removeChild(_graticule.get()); |
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452 | _graticule = NULL; |
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453 | } |
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454 | _needsRedraw = true; |
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455 | } |
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456 | |
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457 | void Renderer::setReadout(int x, int y) |
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458 | { |
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459 | if (!_coordsCallback.valid() || !_mapNode.valid() || !_viewer.valid()) |
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460 | return; |
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461 | |
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462 | osgEarth::GeoPoint mapCoord; |
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463 | if (mapMouseCoords(x, y, mapCoord)) { |
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464 | _coordsCallback->set(mapCoord, _viewer->asView(), _mapNode); |
---|
465 | } else { |
---|
466 | _coordsCallback->reset(_viewer->asView(), _mapNode); |
---|
467 | } |
---|
468 | _needsRedraw = true; |
---|
469 | } |
---|
470 | |
---|
471 | void Renderer::clearReadout() |
---|
472 | { |
---|
473 | if (_coordsCallback.valid()) { |
---|
474 | _coordsCallback->reset(_viewer->asView(), _mapNode); |
---|
475 | } |
---|
476 | _needsRedraw = true; |
---|
477 | } |
---|
478 | |
---|
479 | void Renderer::setCoordinateReadout(bool state, CoordinateDisplayType type, |
---|
480 | int precision) |
---|
481 | { |
---|
482 | if (!state) { |
---|
483 | if (_mouseCoordsTool.valid() && _viewer.valid()) { |
---|
484 | _viewer->removeEventHandler(_mouseCoordsTool.get()); |
---|
485 | _mouseCoordsTool = NULL; |
---|
486 | } |
---|
487 | if (_coordsCallback.valid() && _viewer.valid()) { |
---|
488 | osgEarth::Util::Controls::LabelControl *readout = |
---|
489 | _coordsCallback->getLabel(); |
---|
490 | #ifdef USE_OSGEARTH_TRUNK |
---|
491 | osgEarth::Util::Controls::ControlCanvas::getOrCreate(_viewer.get())->removeControl(readout); |
---|
492 | #else |
---|
493 | osgEarth::Util::Controls::ControlCanvas::get(_viewer.get(), true)->removeControl(readout); |
---|
494 | #endif |
---|
495 | _coordsCallback = NULL; |
---|
496 | } |
---|
497 | } else { |
---|
498 | initMouseCoordsTool(type, precision); |
---|
499 | } |
---|
500 | _needsRedraw = true; |
---|
501 | } |
---|
502 | |
---|
503 | osgEarth::Util::MGRSFormatter::Precision |
---|
504 | Renderer::getMGRSPrecision(int precisionInMeters) |
---|
505 | { |
---|
506 | switch (precisionInMeters) { |
---|
507 | case 1: |
---|
508 | return osgEarth::Util::MGRSFormatter::PRECISION_1M; |
---|
509 | case 10: |
---|
510 | return osgEarth::Util::MGRSFormatter::PRECISION_10M; |
---|
511 | case 100: |
---|
512 | return osgEarth::Util::MGRSFormatter::PRECISION_100M; |
---|
513 | case 1000: |
---|
514 | return osgEarth::Util::MGRSFormatter::PRECISION_1000M; |
---|
515 | case 10000: |
---|
516 | return osgEarth::Util::MGRSFormatter::PRECISION_10000M; |
---|
517 | case 100000: |
---|
518 | return osgEarth::Util::MGRSFormatter::PRECISION_100000M; |
---|
519 | default: |
---|
520 | ERROR("Invalid precision: %d", precisionInMeters); |
---|
521 | return osgEarth::Util::MGRSFormatter::PRECISION_1M; |
---|
522 | } |
---|
523 | } |
---|
524 | |
---|
525 | void Renderer::initMouseCoordsTool(CoordinateDisplayType type, int precision) |
---|
526 | { |
---|
527 | if (!_viewer.valid()) |
---|
528 | return; |
---|
529 | if (_mouseCoordsTool.valid()) { |
---|
530 | _viewer->removeEventHandler(_mouseCoordsTool.get()); |
---|
531 | } |
---|
532 | _mouseCoordsTool = new MouseCoordsTool(_mapNode.get()); |
---|
533 | osgEarth::Util::Controls::LabelControl *readout; |
---|
534 | if (_coordsCallback.valid()) { |
---|
535 | readout = _coordsCallback->getLabel(); |
---|
536 | _coordsCallback = NULL; |
---|
537 | } else { |
---|
538 | readout = new osgEarth::Util::Controls::LabelControl("", 12.0f); |
---|
539 | #ifdef USE_OSGEARTH_TRUNK |
---|
540 | osgEarth::Util::Controls::ControlCanvas::getOrCreate(_viewer.get())->addControl(readout); |
---|
541 | #else |
---|
542 | osgEarth::Util::Controls::ControlCanvas::get(_viewer.get(), true)->addControl(readout); |
---|
543 | #endif |
---|
544 | readout->setForeColor(osg::Vec4f(1, 1, 1, 1)); |
---|
545 | readout->setHaloColor(osg::Vec4f(0, 0, 0, 1)); |
---|
546 | } |
---|
547 | |
---|
548 | osgEarth::Util::Formatter *formatter = NULL; |
---|
549 | if (type == COORDS_MGRS) { |
---|
550 | osgEarth::Util::MGRSFormatter::Precision prec = |
---|
551 | osgEarth::Util::MGRSFormatter::PRECISION_1M; |
---|
552 | if (precision > 0) { |
---|
553 | prec = getMGRSPrecision(precision); |
---|
554 | } |
---|
555 | unsigned int opts = 0u; |
---|
556 | formatter = new osgEarth::Util::MGRSFormatter(prec, NULL, opts); |
---|
557 | } else { |
---|
558 | osgEarth::Util::LatLongFormatter::AngularFormat af; |
---|
559 | unsigned int opts = osgEarth::Util::LatLongFormatter::USE_SYMBOLS; |
---|
560 | switch (type) { |
---|
561 | case COORDS_LATLONG_DEGREES_DECIMAL_MINUTES: |
---|
562 | af = osgEarth::Util::LatLongFormatter::FORMAT_DEGREES_DECIMAL_MINUTES; |
---|
563 | break; |
---|
564 | case COORDS_LATLONG_DEGREES_MINUTES_SECONDS: |
---|
565 | af = osgEarth::Util::LatLongFormatter::FORMAT_DEGREES_MINUTES_SECONDS; |
---|
566 | break; |
---|
567 | default: |
---|
568 | af = osgEarth::Util::LatLongFormatter::FORMAT_DECIMAL_DEGREES; |
---|
569 | } |
---|
570 | osgEarth::Util::LatLongFormatter *latlong = new osgEarth::Util::LatLongFormatter(af, opts); |
---|
571 | if (precision > 0) { |
---|
572 | latlong->setPrecision(precision); |
---|
573 | } |
---|
574 | formatter = latlong; |
---|
575 | } |
---|
576 | _coordsCallback = new MouseCoordsCallback(readout, formatter); |
---|
577 | |
---|
578 | _mouseCoordsTool->addCallback(_coordsCallback.get()); |
---|
579 | _viewer->addEventHandler(_mouseCoordsTool.get()); |
---|
580 | } |
---|
581 | |
---|
582 | void Renderer::initEarthManipulator() |
---|
583 | { |
---|
584 | _manipulator = new osgEarth::Util::EarthManipulator; |
---|
585 | #if 1 |
---|
586 | osgEarth::Util::EarthManipulator::Settings *settings = _manipulator->getSettings(); |
---|
587 | settings->bindMouse(osgEarth::Util::EarthManipulator::ACTION_ROTATE, |
---|
588 | osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON, |
---|
589 | osgGA::GUIEventAdapter::MODKEY_ALT); |
---|
590 | osgEarth::Util::EarthManipulator::ActionOptions options; |
---|
591 | options.clear(); |
---|
592 | options.add(osgEarth::Util::EarthManipulator::OPTION_CONTINUOUS, true); |
---|
593 | settings->bindMouse(osgEarth::Util::EarthManipulator::ACTION_ZOOM, |
---|
594 | osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON, |
---|
595 | osgGA::GUIEventAdapter::MODKEY_ALT, options); |
---|
596 | _manipulator->applySettings(settings); |
---|
597 | #endif |
---|
598 | _viewer->setCameraManipulator(_manipulator.get()); |
---|
599 | _manipulator->setNode(NULL); |
---|
600 | _manipulator->setNode(_sceneRoot.get()); |
---|
601 | //_manipulator->computeHomePosition(); |
---|
602 | } |
---|
603 | |
---|
604 | void Renderer::loadEarthFile(const char *path) |
---|
605 | { |
---|
606 | TRACE("Loading %s", path); |
---|
607 | osg::Node *node = osgDB::readNodeFile(path); |
---|
608 | if (node == NULL) { |
---|
609 | ERROR("Couldn't load %s", path); |
---|
610 | return; |
---|
611 | } |
---|
612 | osgEarth::MapNode *mapNode = osgEarth::MapNode::findMapNode(node); |
---|
613 | if (mapNode == NULL) { |
---|
614 | ERROR("Couldn't find MapNode"); |
---|
615 | return; |
---|
616 | } else { |
---|
617 | initViewer(); |
---|
618 | _sceneRoot = new osg::Group; |
---|
619 | _sceneRoot->addChild(node); |
---|
620 | _map = mapNode->getMap(); |
---|
621 | } |
---|
622 | _mapNode = mapNode; |
---|
623 | |
---|
624 | if (_clipPlaneCullCallback.valid()) { |
---|
625 | _viewer->getCamera()->removeCullCallback(_clipPlaneCullCallback.get()); |
---|
626 | _clipPlaneCullCallback = NULL; |
---|
627 | } |
---|
628 | if (_map->isGeocentric()) { |
---|
629 | _clipPlaneCullCallback = new osgEarth::Util::AutoClipPlaneCullCallback(mapNode); |
---|
630 | _viewer->getCamera()->addCullCallback(_clipPlaneCullCallback.get()); |
---|
631 | } |
---|
632 | _viewer->setSceneData(_sceneRoot.get()); |
---|
633 | |
---|
634 | if (_mouseCoordsTool.valid()) { |
---|
635 | initMouseCoordsTool(); |
---|
636 | } |
---|
637 | initControls(); |
---|
638 | initEarthManipulator(); |
---|
639 | |
---|
640 | _viewer->home(); |
---|
641 | finalizeViewer(); |
---|
642 | _needsRedraw = true; |
---|
643 | } |
---|
644 | |
---|
645 | void Renderer::resetMap(osgEarth::MapOptions::CoordinateSystemType type, |
---|
646 | const char *profile, |
---|
647 | double bounds[4]) |
---|
648 | { |
---|
649 | TRACE("Restting map with type %d, profile %s", type, profile); |
---|
650 | |
---|
651 | osgEarth::MapOptions mapOpts; |
---|
652 | mapOpts.coordSysType() = type; |
---|
653 | if (profile != NULL) { |
---|
654 | if (bounds != NULL) { |
---|
655 | mapOpts.profile() = osgEarth::ProfileOptions(); |
---|
656 | if (strcmp(profile, "geodetic") == 0) { |
---|
657 | mapOpts.profile()->srsString() = "epsg:4326"; |
---|
658 | } else if (strcmp(profile, "spherical-mercator") == 0) { |
---|
659 | // Projection used by Google/Bing/OSM |
---|
660 | // aka epsg:900913 meters in x/y |
---|
661 | // aka WGS84 Web Mercator (Auxiliary Sphere) |
---|
662 | // X/Y: -20037508.34m to 20037508.34m |
---|
663 | mapOpts.profile()->srsString() = "epsg:3857"; |
---|
664 | } else { |
---|
665 | mapOpts.profile()->srsString() = profile; |
---|
666 | } |
---|
667 | TRACE("Setting profile bounds: %g %g %g %g", |
---|
668 | bounds[0], bounds[1], bounds[2], bounds[3]); |
---|
669 | mapOpts.profile()->bounds() = |
---|
670 | osgEarth::Bounds(bounds[0], bounds[1], bounds[2], bounds[3]); |
---|
671 | } else { |
---|
672 | mapOpts.profile() = osgEarth::ProfileOptions(profile); |
---|
673 | } |
---|
674 | } else if (type == osgEarth::MapOptions::CSTYPE_PROJECTED) { |
---|
675 | mapOpts.profile() = osgEarth::ProfileOptions("global-mercator"); |
---|
676 | } |
---|
677 | |
---|
678 | #ifdef USE_CACHE |
---|
679 | setupCache(); |
---|
680 | osgEarth::Drivers::FileSystemCacheOptions cacheOpts; |
---|
681 | cacheOpts.rootPath() = _cacheDir; |
---|
682 | mapOpts.cache() = cacheOpts; |
---|
683 | #endif |
---|
684 | |
---|
685 | initViewer(); |
---|
686 | |
---|
687 | //mapOpts.referenceURI() = _baseURI; |
---|
688 | osgEarth::Map *map = new osgEarth::Map(mapOpts); |
---|
689 | _map = map; |
---|
690 | osgEarth::Drivers::GDALOptions bopts; |
---|
691 | bopts.url() = getBaseImage(); |
---|
692 | addImageLayer("base", bopts); |
---|
693 | #ifdef USE_OSGEARTH_TRUNK |
---|
694 | osgEarth::Drivers::MPTerrainEngine::MPTerrainEngineOptions mpOpt; |
---|
695 | #else |
---|
696 | osgEarth::Drivers::MPTerrainEngineOptions mpOpt; |
---|
697 | #endif |
---|
698 | // Set background layer color |
---|
699 | mpOpt.color() = osg::Vec4(1, 1, 1, 1); |
---|
700 | //mpOpt.minLOD() = 1; |
---|
701 | // Sets shader uniform for terrain renderer (config var defaults to false) |
---|
702 | mpOpt.enableLighting() = false; |
---|
703 | osgEarth::MapNodeOptions mapNodeOpts(mpOpt); |
---|
704 | // Sets GL_LIGHTING state in MapNode's StateSet (config var defaults to true) |
---|
705 | mapNodeOpts.enableLighting() = true; |
---|
706 | osgEarth::MapNode *mapNode = new osgEarth::MapNode(map, mapNodeOpts); |
---|
707 | _mapNode = mapNode; |
---|
708 | if (_map->isGeocentric()) { |
---|
709 | osgEarth::DateTime now; |
---|
710 | #if defined(USE_OSGEARTH_TRUNK) || OSGEARTH_MIN_VERSION_REQUIRED(2, 5, 1) |
---|
711 | TRACE("Creating SkyNode"); |
---|
712 | osgEarth::Util::SkyOptions skyOpts; |
---|
713 | skyOpts.setDriver("gl"); |
---|
714 | skyOpts.hours() = now.hours(); |
---|
715 | skyOpts.ambient() = 0.2f; |
---|
716 | osgEarth::Util::SkyNode *sky = osgEarth::Util::SkyNode::create(skyOpts, mapNode); |
---|
717 | sky->addChild(mapNode); |
---|
718 | sky->attach(_viewer.get(), 0); |
---|
719 | _sceneRoot = sky; |
---|
720 | #else |
---|
721 | _sceneRoot = new osg::Group(); |
---|
722 | _sceneRoot->addChild(_mapNode.get()); |
---|
723 | |
---|
724 | TRACE("Creating SkyNode"); |
---|
725 | osgEarth::Util::SkyNode *sky = new osgEarth::Util::SkyNode(map); |
---|
726 | _sceneRoot->addChild(sky); |
---|
727 | sky->setAmbientBrightness(0.2f); |
---|
728 | sky->setDateTime(now); |
---|
729 | sky->attach(_viewer.get(), 0); |
---|
730 | #endif |
---|
731 | } else { |
---|
732 | _sceneRoot = new osg::Group(); |
---|
733 | _sceneRoot->addChild(_mapNode.get()); |
---|
734 | } |
---|
735 | |
---|
736 | if (_clipPlaneCullCallback.valid()) { |
---|
737 | _viewer->getCamera()->removeCullCallback(_clipPlaneCullCallback.get()); |
---|
738 | _clipPlaneCullCallback = NULL; |
---|
739 | } |
---|
740 | if (_map->isGeocentric()) { |
---|
741 | _clipPlaneCullCallback = new osgEarth::Util::AutoClipPlaneCullCallback(mapNode); |
---|
742 | _viewer->getCamera()->addCullCallback(_clipPlaneCullCallback.get()); |
---|
743 | } |
---|
744 | _viewer->setSceneData(_sceneRoot.get()); |
---|
745 | if (_mouseCoordsTool.valid()) { |
---|
746 | initMouseCoordsTool(); |
---|
747 | } |
---|
748 | initControls(); |
---|
749 | //_viewer->setSceneData(_sceneRoot.get()); |
---|
750 | initEarthManipulator(); |
---|
751 | _viewer->home(); |
---|
752 | |
---|
753 | finalizeViewer(); |
---|
754 | _needsRedraw = true; |
---|
755 | } |
---|
756 | |
---|
757 | void Renderer::clearMap() |
---|
758 | { |
---|
759 | if (_map.valid()) { |
---|
760 | _map->clear(); |
---|
761 | _needsRedraw = true; |
---|
762 | } |
---|
763 | } |
---|
764 | |
---|
765 | void Renderer::setLighting(bool state) |
---|
766 | { |
---|
767 | if (_mapNode.valid()) { |
---|
768 | TRACE("Setting lighting: %d", state ? 1 : 0); |
---|
769 | _mapNode->getOrCreateStateSet() |
---|
770 | ->setMode(GL_LIGHTING, state ? 1 : 0); |
---|
771 | _needsRedraw = true; |
---|
772 | } |
---|
773 | } |
---|
774 | |
---|
775 | void Renderer::setViewerLightType(osg::View::LightingMode mode) |
---|
776 | { |
---|
777 | if (_viewer.valid()) { |
---|
778 | _viewer->setLightingMode(mode); |
---|
779 | _needsRedraw = true; |
---|
780 | } |
---|
781 | } |
---|
782 | |
---|
783 | void Renderer::setTerrainVerticalScale(double scale) |
---|
784 | { |
---|
785 | if (_mapNode.valid()) { |
---|
786 | if (!_verticalScale.valid()) { |
---|
787 | _verticalScale = new osgEarth::Util::VerticalScale; |
---|
788 | _mapNode->getTerrainEngine()->addEffect(_verticalScale); |
---|
789 | } |
---|
790 | _verticalScale->setScale(scale); |
---|
791 | _needsRedraw = true; |
---|
792 | } |
---|
793 | } |
---|
794 | |
---|
795 | void Renderer::setTerrainLighting(bool state) |
---|
796 | { |
---|
797 | #if 1 |
---|
798 | if (!_mapNode.valid()) { |
---|
799 | ERROR("No map node"); |
---|
800 | return; |
---|
801 | } |
---|
802 | // XXX: HACK alert |
---|
803 | // Find the terrain engine container (might be above one or more decorators) |
---|
804 | osg::Group *group = _mapNode->getTerrainEngine(); |
---|
805 | while (group->getParent(0) != NULL && group->getParent(0) != _mapNode.get()) { |
---|
806 | group = group->getParent(0); |
---|
807 | } |
---|
808 | if (group != NULL && group->getParent(0) == _mapNode.get()) { |
---|
809 | TRACE("Setting terrain lighting: %d", state ? 1 : 0); |
---|
810 | if (group->getOrCreateStateSet()->getUniform("oe_mode_GL_LIGHTING") != NULL) { |
---|
811 | group->getStateSet()->getUniform("oe_mode_GL_LIGHTING")->set(state); |
---|
812 | } else { |
---|
813 | ERROR("Can't get terrain lighting uniform"); |
---|
814 | } |
---|
815 | } else { |
---|
816 | ERROR("Can't find terrain engine container"); |
---|
817 | } |
---|
818 | #else |
---|
819 | if (_stateManip.valid()) { |
---|
820 | _stateManip->setLightingEnabled(state); |
---|
821 | } |
---|
822 | #endif |
---|
823 | _needsRedraw = true; |
---|
824 | } |
---|
825 | |
---|
826 | void Renderer::setTerrainWireframe(bool state) |
---|
827 | { |
---|
828 | if (!_map.valid()) { |
---|
829 | ERROR("No map"); |
---|
830 | return; |
---|
831 | } |
---|
832 | #if 0 |
---|
833 | if (!_mapNode.valid()) { |
---|
834 | ERROR("No map node"); |
---|
835 | return; |
---|
836 | } |
---|
837 | TRACE("Setting terrain wireframe: %d", state ? 1 : 0); |
---|
838 | osg::StateSet *state = _mapNode->getOrCreateStateSet(); |
---|
839 | osg::PolygonMode *pmode = dynamic_cast< osg::PolygonMode* >(state->getAttribute(osg::StateAttribute::POLYGONMODE)); |
---|
840 | if (pmode == NULL) { |
---|
841 | pmode = new osg::PolygonMode; |
---|
842 | state->setAttribute(pmode); |
---|
843 | } |
---|
844 | if (state) { |
---|
845 | pmode->setMode(osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::LINE); |
---|
846 | } else { |
---|
847 | pmode->setMode(osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::FILL); |
---|
848 | } |
---|
849 | _needsRedraw = true; |
---|
850 | #else |
---|
851 | if (_stateManip.valid()) { |
---|
852 | _stateManip->setPolygonMode(state ? osg::PolygonMode::LINE : osg::PolygonMode::FILL); |
---|
853 | _needsRedraw = true; |
---|
854 | } |
---|
855 | #endif |
---|
856 | } |
---|
857 | |
---|
858 | void Renderer::saveNamedViewpoint(const char *name) |
---|
859 | { |
---|
860 | _viewpoints[name] = getViewpoint(); |
---|
861 | } |
---|
862 | |
---|
863 | bool Renderer::removeNamedViewpoint(const char *name) |
---|
864 | { |
---|
865 | ViewpointHashmap::iterator itr = _viewpoints.find(name); |
---|
866 | if (itr != _viewpoints.end()) { |
---|
867 | _viewpoints.erase(name); |
---|
868 | return true; |
---|
869 | } else { |
---|
870 | ERROR("Unknown viewpoint: '%s'", name); |
---|
871 | return false; |
---|
872 | } |
---|
873 | } |
---|
874 | |
---|
875 | bool Renderer::restoreNamedViewpoint(const char *name, double durationSecs) |
---|
876 | { |
---|
877 | ViewpointHashmap::iterator itr = _viewpoints.find(name); |
---|
878 | if (itr != _viewpoints.end()) { |
---|
879 | setViewpoint(itr->second, durationSecs); |
---|
880 | return true; |
---|
881 | } else { |
---|
882 | ERROR("Unknown viewpoint: '%s'", name); |
---|
883 | return false; |
---|
884 | } |
---|
885 | } |
---|
886 | |
---|
887 | void Renderer::setViewpoint(const osgEarth::Viewpoint& v, double durationSecs) |
---|
888 | { |
---|
889 | if (_manipulator.valid()) { |
---|
890 | TRACE("Setting viewpoint: %g %g %g %g %g %g", |
---|
891 | v.x(), v.y(), v.z(), v.getHeading(), v.getPitch(), v.getRange()); |
---|
892 | _manipulator->setViewpoint(v, durationSecs); |
---|
893 | _needsRedraw = true; |
---|
894 | } else { |
---|
895 | ERROR("No manipulator"); |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | osgEarth::Viewpoint Renderer::getViewpoint() |
---|
900 | { |
---|
901 | if (_manipulator.valid()) { |
---|
902 | return _manipulator->getViewpoint(); |
---|
903 | } else { |
---|
904 | // Uninitialized, invalid viewpoint |
---|
905 | return osgEarth::Viewpoint(); |
---|
906 | } |
---|
907 | } |
---|
908 | |
---|
909 | static void srsInfo(const osgEarth::SpatialReference *srs) |
---|
910 | { |
---|
911 | TRACE("SRS: %s", srs->getName().c_str()); |
---|
912 | TRACE("horiz: \"%s\" vert: \"%s\"", srs->getHorizInitString().c_str(), srs->getVertInitString().c_str()); |
---|
913 | TRACE("geographic: %d geodetic: %d projected: %d ecef: %d mercator: %d spherical mercator: %d northpolar: %d southpolar: %d userdefined: %d contiguous: %d cube: %d ltp: %d plate_carre: %d", |
---|
914 | srs->isGeographic() ? 1 : 0, |
---|
915 | srs->isGeodetic() ? 1 : 0, |
---|
916 | srs->isProjected() ? 1 : 0, |
---|
917 | srs->isECEF() ? 1 : 0, |
---|
918 | srs->isMercator() ? 1 : 0, |
---|
919 | srs->isSphericalMercator() ? 1 : 0, |
---|
920 | srs->isNorthPolar() ? 1 : 0, |
---|
921 | srs->isSouthPolar() ? 1 : 0, |
---|
922 | srs->isUserDefined() ? 1 : 0, |
---|
923 | srs->isContiguous() ? 1 : 0, |
---|
924 | srs->isCube() ? 1 : 0, |
---|
925 | srs->isLTP() ? 1 : 0, |
---|
926 | srs->isPlateCarre() ? 1 : 0); |
---|
927 | } |
---|
928 | |
---|
929 | bool Renderer::getWorldCoords(const osgEarth::GeoPoint& mapPt, osg::Vec3d *world) |
---|
930 | { |
---|
931 | if (!_mapNode.valid() || _mapNode->getTerrain() == NULL) { |
---|
932 | ERROR("No map"); |
---|
933 | return false; |
---|
934 | } |
---|
935 | TRACE("Input SRS:"); |
---|
936 | srsInfo(mapPt.getSRS()); |
---|
937 | TRACE("Map SRS:"); |
---|
938 | srsInfo(_mapNode->getMapSRS()); |
---|
939 | bool ret = mapPt.toWorld(*world, _mapNode->getTerrain()); |
---|
940 | TRACE("In: %g,%g,%g Out: %g,%g,%g", |
---|
941 | mapPt.x(), mapPt.y(), mapPt.z(), |
---|
942 | world->x(), world->y(), world->z()); |
---|
943 | return ret; |
---|
944 | } |
---|
945 | |
---|
946 | bool Renderer::worldToScreen(const osg::Vec3d& world, osg::Vec3d *screen, bool invertY) |
---|
947 | { |
---|
948 | if (!_viewer.valid()) { |
---|
949 | ERROR("No viewer"); |
---|
950 | return false; |
---|
951 | } |
---|
952 | osg::Camera *cam = _viewer->getCamera(); |
---|
953 | osg::Matrixd MVP = cam->getViewMatrix() * cam->getProjectionMatrix(); |
---|
954 | // Get clip coords |
---|
955 | osg::Vec4d pt; |
---|
956 | pt = osg::Vec4d(world, 1.0) * MVP; |
---|
957 | // Clip |
---|
958 | if (pt.x() < -pt.w() || |
---|
959 | pt.x() > pt.w() || |
---|
960 | pt.y() < -pt.w() || |
---|
961 | pt.y() > pt.w() || |
---|
962 | pt.z() < -pt.w() || |
---|
963 | pt.z() > pt.w()) { |
---|
964 | // Outside frustum |
---|
965 | TRACE("invalid pt: %g,%g,%g,%g", pt.x(), pt.y(), pt.z(), pt.w()); |
---|
966 | return false; |
---|
967 | } |
---|
968 | TRACE("clip pt: %g,%g,%g,%g", pt.x(), pt.y(), pt.z(), pt.w()); |
---|
969 | // Perspective divide: now NDC |
---|
970 | pt /= pt.w(); |
---|
971 | const osg::Viewport *viewport = cam->getViewport(); |
---|
972 | #if 1 |
---|
973 | screen->x() = viewport->x() + viewport->width() * 0.5 + pt.x() * viewport->width() * 0.5; |
---|
974 | screen->y() = viewport->y() + viewport->height() * 0.5 + pt.y() * viewport->height() * 0.5; |
---|
975 | //double near = 0; |
---|
976 | //double far = 1; |
---|
977 | //screen->z() = (far + near) * 0.5 + (far - near) * 0.5 * pt.z(); |
---|
978 | screen->z() = 0.5 + 0.5 * pt.z(); |
---|
979 | #else |
---|
980 | *screen = osg::Vec3d(pt.x(), pt.y(), pt.z()) * cam->getViewport()->computeWindowMatrix(); |
---|
981 | #endif |
---|
982 | if (invertY) { |
---|
983 | screen->y() = viewport->height() - screen->y(); |
---|
984 | } |
---|
985 | TRACE("screen: %g,%g,%g", screen->x(), screen->y(), screen->z()); |
---|
986 | return true; |
---|
987 | } |
---|
988 | |
---|
989 | bool Renderer::worldToScreen(std::vector<osg::Vec3d>& coords, bool invertY) |
---|
990 | { |
---|
991 | if (!_viewer.valid()) { |
---|
992 | ERROR("No viewer"); |
---|
993 | return false; |
---|
994 | } |
---|
995 | osg::Camera *cam = _viewer->getCamera(); |
---|
996 | osg::Matrixd MVP = cam->getViewMatrix() * cam->getProjectionMatrix(); |
---|
997 | const osg::Viewport *viewport = cam->getViewport(); |
---|
998 | for (std::vector<osg::Vec3d>::iterator itr = coords.begin(); |
---|
999 | itr != coords.end(); ++itr) { |
---|
1000 | // Get clip coords |
---|
1001 | osg::Vec4d pt; |
---|
1002 | pt = osg::Vec4d(*itr, 1.0) * MVP; |
---|
1003 | // Clip |
---|
1004 | if (pt.x() < -pt.w() || |
---|
1005 | pt.x() > pt.w() || |
---|
1006 | pt.y() < -pt.w() || |
---|
1007 | pt.y() > pt.w() || |
---|
1008 | pt.z() < -pt.w() || |
---|
1009 | pt.z() > pt.w()) { |
---|
1010 | // Outside frustum |
---|
1011 | TRACE("invalid pt: %g,%g,%g,%g", pt.x(), pt.y(), pt.z(), pt.w()); |
---|
1012 | itr->set(std::numeric_limits<double>::quiet_NaN(), |
---|
1013 | std::numeric_limits<double>::quiet_NaN(), |
---|
1014 | std::numeric_limits<double>::quiet_NaN()); |
---|
1015 | continue; |
---|
1016 | } |
---|
1017 | TRACE("clip pt: %g,%g,%g,%g", pt.x(), pt.y(), pt.z(), pt.w()); |
---|
1018 | // Perspective divide: now NDC |
---|
1019 | pt /= pt.w(); |
---|
1020 | #if 1 |
---|
1021 | itr->x() = viewport->x() + viewport->width() * 0.5 + pt.x() * viewport->width() * 0.5; |
---|
1022 | itr->y() = viewport->y() + viewport->height() * 0.5 + pt.y() * viewport->height() * 0.5; |
---|
1023 | //double near = 0; |
---|
1024 | //double far = 1; |
---|
1025 | //itr->z() = (far + near) * 0.5 + (far - near) * 0.5 * pt.z(); |
---|
1026 | itr->z() = 0.5 + 0.5 * pt.z(); |
---|
1027 | #else |
---|
1028 | *itr = osg::Vec3d(pt.x(), pt.y(), pt.z()) * viewport->computeWindowMatrix(); |
---|
1029 | #endif |
---|
1030 | if (invertY) { |
---|
1031 | itr->y() = viewport->height() - itr->y(); |
---|
1032 | } |
---|
1033 | TRACE("screen: %g,%g,%g", itr->x(), itr->y(), itr->z()); |
---|
1034 | } |
---|
1035 | return true; |
---|
1036 | } |
---|
1037 | |
---|
1038 | /** |
---|
1039 | * \brief Map screen mouse coordinates to map coordinates |
---|
1040 | * |
---|
1041 | * This method assumes that mouse Y coordinates are 0 at the top |
---|
1042 | * of the screen and increase going down if invertY is set, and |
---|
1043 | * 0 at the bottom and increase going up otherwise. |
---|
1044 | */ |
---|
1045 | bool Renderer::mapMouseCoords(float mouseX, float mouseY, |
---|
1046 | osgEarth::GeoPoint& map, bool invertY) |
---|
1047 | { |
---|
1048 | if (!_mapNode.valid() || _mapNode->getTerrain() == NULL) { |
---|
1049 | ERROR("No map"); |
---|
1050 | return false; |
---|
1051 | } |
---|
1052 | if (!_viewer.valid()) { |
---|
1053 | ERROR("No viewer"); |
---|
1054 | return false; |
---|
1055 | } |
---|
1056 | if (invertY) { |
---|
1057 | mouseY = ((float)_windowHeight - mouseY); |
---|
1058 | } |
---|
1059 | osg::Vec3d world; |
---|
1060 | if (_mapNode->getTerrain()->getWorldCoordsUnderMouse(_viewer->asView(), mouseX, mouseY, world)) { |
---|
1061 | map.fromWorld(getMapSRS(), world); |
---|
1062 | return true; |
---|
1063 | } |
---|
1064 | return false; |
---|
1065 | } |
---|
1066 | |
---|
1067 | bool Renderer::addImageLayer(const char *name, |
---|
1068 | osgEarth::TileSourceOptions& opts, |
---|
1069 | bool makeShared, |
---|
1070 | bool visible) |
---|
1071 | { |
---|
1072 | if (!_map.valid()) { |
---|
1073 | ERROR("No map"); |
---|
1074 | return false; |
---|
1075 | } |
---|
1076 | TRACE("layer: %s", name); |
---|
1077 | if (!opts.tileSize().isSet()) { |
---|
1078 | opts.tileSize() = 256; |
---|
1079 | } |
---|
1080 | osgEarth::ImageLayerOptions layerOpts(name, opts); |
---|
1081 | #ifdef USE_OSGEARTH_TRUNK |
---|
1082 | layerOpts.textureCompression() = osg::Texture::USE_IMAGE_DATA_FORMAT; |
---|
1083 | #endif |
---|
1084 | if (makeShared) { |
---|
1085 | layerOpts.shared() = true; |
---|
1086 | } |
---|
1087 | if (!visible) { |
---|
1088 | layerOpts.visible() = false; |
---|
1089 | } |
---|
1090 | osg::ref_ptr<osgEarth::ImageLayer> layer = new osgEarth::ImageLayer(layerOpts); |
---|
1091 | _map->addImageLayer(layer.get()); |
---|
1092 | if (layer->getTileSource() == NULL || !layer->getTileSource()->isOK()) { |
---|
1093 | ERROR("Failed to add image layer: %s", name); |
---|
1094 | _map->removeImageLayer(layer.get()); |
---|
1095 | return false; |
---|
1096 | } |
---|
1097 | _needsRedraw = true; |
---|
1098 | return true; |
---|
1099 | } |
---|
1100 | |
---|
1101 | void Renderer::addColorFilter(const char *name, |
---|
1102 | const char *shader) |
---|
1103 | { |
---|
1104 | if (!_map.valid()) { |
---|
1105 | ERROR("No map"); |
---|
1106 | return; |
---|
1107 | } |
---|
1108 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1109 | if (layer == NULL) { |
---|
1110 | TRACE("Image layer not found: %s", name); |
---|
1111 | return; |
---|
1112 | } |
---|
1113 | osgEarth::Util::GLSLColorFilter *filter = new osgEarth::Util::GLSLColorFilter; |
---|
1114 | filter->setCode(shader); |
---|
1115 | //filter->setCode("color.rgb = color.r > 0.5 ? vec3(1.0) : vec3(0.0);"); |
---|
1116 | layer->addColorFilter(filter); |
---|
1117 | _needsRedraw = true; |
---|
1118 | } |
---|
1119 | |
---|
1120 | void Renderer::removeColorFilter(const char *name, int idx) |
---|
1121 | { |
---|
1122 | if (!_map.valid()) { |
---|
1123 | ERROR("No map"); |
---|
1124 | return; |
---|
1125 | } |
---|
1126 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1127 | if (layer == NULL) { |
---|
1128 | TRACE("Image layer not found: %s", name); |
---|
1129 | return; |
---|
1130 | } |
---|
1131 | if (idx < 0) { |
---|
1132 | while (!layer->getColorFilters().empty()) { |
---|
1133 | layer->removeColorFilter(layer->getColorFilters()[0]); |
---|
1134 | } |
---|
1135 | } else { |
---|
1136 | layer->removeColorFilter(layer->getColorFilters().at(idx)); |
---|
1137 | } |
---|
1138 | _needsRedraw = true; |
---|
1139 | } |
---|
1140 | |
---|
1141 | void Renderer::removeImageLayer(const char *name) |
---|
1142 | { |
---|
1143 | if (!_map.valid()) { |
---|
1144 | ERROR("No map"); |
---|
1145 | return; |
---|
1146 | } |
---|
1147 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1148 | if (layer != NULL) { |
---|
1149 | _map->removeImageLayer(layer); |
---|
1150 | _needsRedraw = true; |
---|
1151 | } else { |
---|
1152 | TRACE("Image layer not found: %s", name); |
---|
1153 | } |
---|
1154 | } |
---|
1155 | |
---|
1156 | void Renderer::moveImageLayer(const char *name, unsigned int pos) |
---|
1157 | { |
---|
1158 | if (!_map.valid()) { |
---|
1159 | ERROR("No map"); |
---|
1160 | return; |
---|
1161 | } |
---|
1162 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1163 | if (layer != NULL) { |
---|
1164 | _map->moveImageLayer(layer, pos); |
---|
1165 | _needsRedraw = true; |
---|
1166 | } else { |
---|
1167 | TRACE("Image layer not found: %s", name); |
---|
1168 | } |
---|
1169 | } |
---|
1170 | |
---|
1171 | void Renderer::setImageLayerOpacity(const char *name, double opacity) |
---|
1172 | { |
---|
1173 | if (!_map.valid()) { |
---|
1174 | ERROR("No map"); |
---|
1175 | return; |
---|
1176 | } |
---|
1177 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1178 | if (layer != NULL) { |
---|
1179 | layer->setOpacity(opacity); |
---|
1180 | _needsRedraw = true; |
---|
1181 | } else { |
---|
1182 | TRACE("Image layer not found: %s", name); |
---|
1183 | } |
---|
1184 | } |
---|
1185 | |
---|
1186 | void Renderer::setImageLayerVisibility(const char *name, bool state) |
---|
1187 | { |
---|
1188 | #if OSGEARTH_MIN_VERSION_REQUIRED(2, 4, 0) |
---|
1189 | if (!_map.valid()) { |
---|
1190 | ERROR("No map"); |
---|
1191 | return; |
---|
1192 | } |
---|
1193 | osgEarth::ImageLayer *layer = _map->getImageLayerByName(name); |
---|
1194 | if (layer != NULL) { |
---|
1195 | layer->setVisible(state); |
---|
1196 | _needsRedraw = true; |
---|
1197 | } else { |
---|
1198 | TRACE("Image layer not found: %s", name); |
---|
1199 | } |
---|
1200 | #endif |
---|
1201 | } |
---|
1202 | |
---|
1203 | void Renderer::addElevationLayer(const char *name, |
---|
1204 | osgEarth::TileSourceOptions& opts) |
---|
1205 | { |
---|
1206 | if (!_map.valid()) { |
---|
1207 | ERROR("No map"); |
---|
1208 | return; |
---|
1209 | } |
---|
1210 | TRACE("layer: %s", name); |
---|
1211 | if (!opts.tileSize().isSet()) { |
---|
1212 | opts.tileSize() = 15; |
---|
1213 | } |
---|
1214 | osgEarth::ElevationLayerOptions layerOpts(name, opts); |
---|
1215 | // XXX: GDAL does not report vertical datum, it should be specified here |
---|
1216 | // Common options: geodetic (default), egm96, egm84, egm2008 |
---|
1217 | //layerOpts.verticalDatum() = "egm96"; |
---|
1218 | _map->addElevationLayer(new osgEarth::ElevationLayer(layerOpts)); |
---|
1219 | _needsRedraw = true; |
---|
1220 | } |
---|
1221 | |
---|
1222 | void Renderer::removeElevationLayer(const char *name) |
---|
1223 | { |
---|
1224 | if (!_map.valid()) { |
---|
1225 | ERROR("No map"); |
---|
1226 | return; |
---|
1227 | } |
---|
1228 | osgEarth::ElevationLayer *layer = _map->getElevationLayerByName(name); |
---|
1229 | if (layer != NULL) { |
---|
1230 | _map->removeElevationLayer(layer); |
---|
1231 | _needsRedraw = true; |
---|
1232 | } else { |
---|
1233 | TRACE("Elevation layer not found: %s", name); |
---|
1234 | } |
---|
1235 | } |
---|
1236 | |
---|
1237 | void Renderer::moveElevationLayer(const char *name, unsigned int pos) |
---|
1238 | { |
---|
1239 | if (!_map.valid()) { |
---|
1240 | ERROR("No map"); |
---|
1241 | return; |
---|
1242 | } |
---|
1243 | osgEarth::ElevationLayer *layer = _map->getElevationLayerByName(name); |
---|
1244 | if (layer != NULL) { |
---|
1245 | _map->moveElevationLayer(layer, pos); |
---|
1246 | _needsRedraw = true; |
---|
1247 | } else { |
---|
1248 | TRACE("Elevation layer not found: %s", name); |
---|
1249 | } |
---|
1250 | } |
---|
1251 | |
---|
1252 | void Renderer::setElevationLayerVisibility(const char *name, bool state) |
---|
1253 | { |
---|
1254 | #if OSGEARTH_MIN_VERSION_REQUIRED(2, 4, 0) |
---|
1255 | if (!_map.valid()) { |
---|
1256 | ERROR("No map"); |
---|
1257 | return; |
---|
1258 | } |
---|
1259 | osgEarth::ElevationLayer *layer = _map->getElevationLayerByName(name); |
---|
1260 | if (layer != NULL) { |
---|
1261 | layer->setVisible(state); |
---|
1262 | _needsRedraw = true; |
---|
1263 | } else { |
---|
1264 | TRACE("Elevation layer not found: %s", name); |
---|
1265 | } |
---|
1266 | #endif |
---|
1267 | } |
---|
1268 | |
---|
1269 | void Renderer::addPlaceNode(double latitude, double longitude, char *labelText) |
---|
1270 | { |
---|
1271 | if (!_mapNode.valid()) { |
---|
1272 | ERROR("No map node"); |
---|
1273 | return; |
---|
1274 | } |
---|
1275 | if (!_annotations.valid()) { |
---|
1276 | _annotations = new osg::Group(); |
---|
1277 | _sceneRoot->addChild(_annotations.get()); |
---|
1278 | _placeNodes = new osg::Group(); |
---|
1279 | osgEarth::Decluttering::setEnabled(_placeNodes->getOrCreateStateSet(), true); |
---|
1280 | _annotations->addChild(_placeNodes.get()); |
---|
1281 | } |
---|
1282 | |
---|
1283 | const osgEarth::SpatialReference* geoSRS = _mapNode->getMapSRS()->getGeographicSRS(); |
---|
1284 | |
---|
1285 | osgEarth::Symbology::Style pin; |
---|
1286 | pin.getOrCreate<osgEarth::Symbology::IconSymbol>()->url()->setLiteral(getPinIcon()); |
---|
1287 | osgEarth::Annotation::AnnotationNode *anno = new osgEarth::Annotation::PlaceNode(_mapNode, osgEarth::GeoPoint(geoSRS, longitude, latitude), labelText, pin); |
---|
1288 | _placeNodes->addChild(anno); |
---|
1289 | osgEarth::Annotation::DecorationInstaller |
---|
1290 | highlightInstaller("hover", new osgEarth::Annotation::HighlightDecoration()); |
---|
1291 | _annotations->accept(highlightInstaller); |
---|
1292 | // scale labels when hovering: |
---|
1293 | osgEarth::Annotation::DecorationInstaller |
---|
1294 | scaleInstaller("hover", new osgEarth::Annotation::ScaleDecoration(1.1f)); |
---|
1295 | _placeNodes->accept(scaleInstaller); |
---|
1296 | _needsRedraw = true; |
---|
1297 | } |
---|
1298 | |
---|
1299 | void Renderer::hoverPlaceNode(int x, int y, bool invertY) |
---|
1300 | { |
---|
1301 | osgEarth::Picker picker(_viewer.get(), _placeNodes.get()); |
---|
1302 | osgEarth::Picker::Hits hits; |
---|
1303 | float mouseX = (float)x; |
---|
1304 | float mouseY = (float)y; |
---|
1305 | if (invertY) { |
---|
1306 | mouseY = ((float)_windowHeight - mouseY); |
---|
1307 | } |
---|
1308 | std::set<osgEarth::Annotation::AnnotationNode*> toUnHover; |
---|
1309 | for (std::set<osgEarth::Annotation::AnnotationNode*>::iterator itr = _hovered.begin(); |
---|
1310 | itr != _hovered.end(); ++itr) { |
---|
1311 | toUnHover.insert(*itr); |
---|
1312 | } |
---|
1313 | if (picker.pick(mouseX, mouseY, hits)) { |
---|
1314 | TRACE("Picker hit!"); |
---|
1315 | for (osgEarth::Picker::Hits::const_iterator hitr = hits.begin(); |
---|
1316 | hitr != hits.end(); ++hitr) { |
---|
1317 | osgEarth::Annotation::AnnotationNode *anno = |
---|
1318 | picker.getNode<osgEarth::Annotation::AnnotationNode>(*hitr); |
---|
1319 | if (anno != NULL) { |
---|
1320 | if (_hovered.find(anno) == _hovered.end()) { |
---|
1321 | _hovered.insert(anno); |
---|
1322 | anno->setDecoration("hover"); |
---|
1323 | _needsRedraw = true; |
---|
1324 | } |
---|
1325 | toUnHover.erase(anno); |
---|
1326 | } |
---|
1327 | } |
---|
1328 | } |
---|
1329 | for (std::set<osgEarth::Annotation::AnnotationNode *>::iterator itr = toUnHover.begin(); |
---|
1330 | itr != toUnHover.end(); ++itr) { |
---|
1331 | _hovered.erase(*itr); |
---|
1332 | (*itr)->clearDecoration(); |
---|
1333 | _needsRedraw = true; |
---|
1334 | } |
---|
1335 | } |
---|
1336 | |
---|
1337 | void Renderer::deletePlaceNode(int x, int y, bool invertY) |
---|
1338 | { |
---|
1339 | osgEarth::Picker picker(_viewer.get(), _placeNodes.get()); |
---|
1340 | osgEarth::Picker::Hits hits; |
---|
1341 | float mouseX = (float)x; |
---|
1342 | float mouseY = (float)y; |
---|
1343 | if (invertY) { |
---|
1344 | mouseY = ((float)_windowHeight - mouseY); |
---|
1345 | } |
---|
1346 | if (picker.pick(mouseX, mouseY, hits)) { |
---|
1347 | TRACE("Picker hit!"); |
---|
1348 | // prevent multiple hits on the same instance |
---|
1349 | std::set<osgEarth::Annotation::AnnotationNode *> fired; |
---|
1350 | for (osgEarth::Picker::Hits::const_iterator hitr = hits.begin(); |
---|
1351 | hitr != hits.end(); ++hitr) { |
---|
1352 | osgEarth::Annotation::AnnotationNode *anno = |
---|
1353 | picker.getNode<osgEarth::Annotation::AnnotationNode>(*hitr); |
---|
1354 | if (anno != NULL && fired.find(anno) == fired.end()) { |
---|
1355 | fired.insert(anno); |
---|
1356 | _needsRedraw = true; |
---|
1357 | } |
---|
1358 | } |
---|
1359 | for (std::set<osgEarth::Annotation::AnnotationNode *>::iterator itr = fired.begin(); |
---|
1360 | itr != fired.end(); ++itr) { |
---|
1361 | (*itr)->clearDecoration(); |
---|
1362 | _placeNodes->removeChild(*itr); |
---|
1363 | if (_hovered.find(*itr) != _hovered.end()) { |
---|
1364 | _hovered.erase(*itr); |
---|
1365 | } |
---|
1366 | } |
---|
1367 | } else { |
---|
1368 | TRACE("NO Picker hits"); |
---|
1369 | } |
---|
1370 | } |
---|
1371 | |
---|
1372 | void Renderer::addModelLayer(const char *name, osgEarth::ModelSourceOptions& opts) |
---|
1373 | { |
---|
1374 | if (!_map.valid()) { |
---|
1375 | ERROR("No map"); |
---|
1376 | return; |
---|
1377 | } |
---|
1378 | TRACE("layer: %s", name); |
---|
1379 | osgEarth::ModelLayerOptions layerOpts(name, opts); |
---|
1380 | _map->addModelLayer(new osgEarth::ModelLayer(layerOpts)); |
---|
1381 | _needsRedraw = true; |
---|
1382 | } |
---|
1383 | |
---|
1384 | void Renderer::removeModelLayer(const char *name) |
---|
1385 | { |
---|
1386 | if (!_map.valid()) { |
---|
1387 | ERROR("No map"); |
---|
1388 | return; |
---|
1389 | } |
---|
1390 | osgEarth::ModelLayer *layer = _map->getModelLayerByName(name); |
---|
1391 | if (layer != NULL) { |
---|
1392 | _map->removeModelLayer(layer); |
---|
1393 | _needsRedraw = true; |
---|
1394 | } else { |
---|
1395 | TRACE("Model layer not found: %s", name); |
---|
1396 | } |
---|
1397 | } |
---|
1398 | |
---|
1399 | void Renderer::moveModelLayer(const char *name, unsigned int pos) |
---|
1400 | { |
---|
1401 | if (!_map.valid()) { |
---|
1402 | ERROR("No map"); |
---|
1403 | return; |
---|
1404 | } |
---|
1405 | osgEarth::ModelLayer *layer = _map->getModelLayerByName(name); |
---|
1406 | if (layer != NULL) { |
---|
1407 | _map->moveModelLayer(layer, pos); |
---|
1408 | _needsRedraw = true; |
---|
1409 | } else { |
---|
1410 | TRACE("Model layer not found: %s", name); |
---|
1411 | } |
---|
1412 | } |
---|
1413 | |
---|
1414 | void Renderer::setModelLayerOpacity(const char *name, double opacity) |
---|
1415 | { |
---|
1416 | #if OSGEARTH_MIN_VERSION_REQUIRED(2, 5, 0) |
---|
1417 | if (!_map.valid()) { |
---|
1418 | ERROR("No map"); |
---|
1419 | return; |
---|
1420 | } |
---|
1421 | osgEarth::ModelLayer *layer = _map->getModelLayerByName(name); |
---|
1422 | if (layer != NULL) { |
---|
1423 | layer->setOpacity(opacity); |
---|
1424 | _needsRedraw = true; |
---|
1425 | } else { |
---|
1426 | TRACE("Model layer not found: %s", name); |
---|
1427 | } |
---|
1428 | #endif |
---|
1429 | } |
---|
1430 | |
---|
1431 | void Renderer::setModelLayerVisibility(const char *name, bool state) |
---|
1432 | { |
---|
1433 | #if OSGEARTH_MIN_VERSION_REQUIRED(2, 4, 0) |
---|
1434 | if (!_map.valid()) { |
---|
1435 | ERROR("No map"); |
---|
1436 | return; |
---|
1437 | } |
---|
1438 | osgEarth::ModelLayer *layer = _map->getModelLayerByName(name); |
---|
1439 | if (layer != NULL) { |
---|
1440 | layer->setVisible(state); |
---|
1441 | _needsRedraw = true; |
---|
1442 | } else { |
---|
1443 | TRACE("Model layer not found: %s", name); |
---|
1444 | } |
---|
1445 | #endif |
---|
1446 | } |
---|
1447 | |
---|
1448 | /** |
---|
1449 | * \brief Resize the render window (image size for renderings) |
---|
1450 | */ |
---|
1451 | void Renderer::setWindowSize(int width, int height) |
---|
1452 | { |
---|
1453 | if (_windowWidth == width && |
---|
1454 | _windowHeight == height) { |
---|
1455 | TRACE("No change"); |
---|
1456 | return; |
---|
1457 | } |
---|
1458 | |
---|
1459 | TRACE("Setting window size to %dx%d", width, height); |
---|
1460 | |
---|
1461 | double origBitrate = getMaximumBitrate(); |
---|
1462 | |
---|
1463 | _windowWidth = width; |
---|
1464 | _windowHeight = height; |
---|
1465 | |
---|
1466 | setMaximumBitrate(origBitrate); |
---|
1467 | TRACE("Bandwidth target: %.2f Mbps", (float)(getMaximumBitrate()/1.0e6)); |
---|
1468 | TRACE("Frame rate target: %.2f Hz", (float)getMaximumFrameRateInHertz()); |
---|
1469 | |
---|
1470 | if (_viewer.valid()) { |
---|
1471 | #ifdef USE_OFFSCREEN_RENDERING |
---|
1472 | #ifdef USE_PBUFFER |
---|
1473 | osg::ref_ptr<osg::GraphicsContext> pbuffer; |
---|
1474 | osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; |
---|
1475 | traits->x = 0; |
---|
1476 | traits->y = 0; |
---|
1477 | traits->width = _windowWidth; |
---|
1478 | traits->height = _windowHeight; |
---|
1479 | traits->red = 8; |
---|
1480 | traits->green = 8; |
---|
1481 | traits->blue = 8; |
---|
1482 | traits->alpha = 8; |
---|
1483 | traits->windowDecoration = false; |
---|
1484 | traits->pbuffer = true; |
---|
1485 | traits->doubleBuffer = true; |
---|
1486 | traits->sharedContext = 0; |
---|
1487 | |
---|
1488 | pbuffer = osg::GraphicsContext::createGraphicsContext(traits.get()); |
---|
1489 | if (pbuffer.valid()) { |
---|
1490 | TRACE("Pixel buffer has been created successfully."); |
---|
1491 | } else { |
---|
1492 | ERROR("Pixel buffer has not been created successfully."); |
---|
1493 | } |
---|
1494 | osg::Camera *camera = new osg::Camera; |
---|
1495 | camera->setGraphicsContext(pbuffer.get()); |
---|
1496 | camera->setViewport(new osg::Viewport(0, 0, _windowWidth, _windowHeight)); |
---|
1497 | GLenum buffer = pbuffer->getTraits()->doubleBuffer ? GL_BACK : GL_FRONT; |
---|
1498 | camera->setDrawBuffer(buffer); |
---|
1499 | camera->setReadBuffer(buffer); |
---|
1500 | camera->setFinalDrawCallback(_captureCallback.get()); |
---|
1501 | _viewer->addSlave(camera, osg::Matrixd(), osg::Matrixd()); |
---|
1502 | _viewer->realize(); |
---|
1503 | #else |
---|
1504 | if (_captureCallback.valid()) { |
---|
1505 | _captureCallback->getTexture()->setTextureSize(_windowWidth, _windowHeight); |
---|
1506 | } |
---|
1507 | osgViewer::ViewerBase::Windows windows; |
---|
1508 | _viewer->getWindows(windows); |
---|
1509 | if (windows.size() == 1) { |
---|
1510 | windows[0]->setWindowRectangle(0, 0, _windowWidth, _windowHeight); |
---|
1511 | } else { |
---|
1512 | ERROR("Num windows: %lu", windows.size()); |
---|
1513 | } |
---|
1514 | #endif |
---|
1515 | #else |
---|
1516 | osgViewer::ViewerBase::Windows windows; |
---|
1517 | _viewer->getWindows(windows); |
---|
1518 | if (windows.size() == 1) { |
---|
1519 | windows[0]->setWindowRectangle(0, 0, _windowWidth, _windowHeight); |
---|
1520 | } else { |
---|
1521 | ERROR("Num windows: %lu", windows.size()); |
---|
1522 | } |
---|
1523 | #endif |
---|
1524 | // HACK: Without this, the mouse coordinate mapping uses the old size |
---|
1525 | // for 1 frame. |
---|
1526 | assert(_viewer->getEventQueue() != NULL); |
---|
1527 | //TRACE("Window EventQueue: %p", getEventQueue()); |
---|
1528 | //TRACE("Viewer EventQueue: %p", _viewer->getEventQueue()); |
---|
1529 | _viewer->getEventQueue()->windowResize(0, 0, _windowWidth, _windowHeight); |
---|
1530 | _needsRedraw = true; |
---|
1531 | } |
---|
1532 | } |
---|
1533 | |
---|
1534 | /** |
---|
1535 | * \brief Set the orientation of the camera from a quaternion |
---|
1536 | * rotation |
---|
1537 | * |
---|
1538 | * \param[in] quat A quaternion with scalar part first: w,x,y,z |
---|
1539 | * \param[in] absolute Is rotation absolute or relative? |
---|
1540 | */ |
---|
1541 | void Renderer::setCameraOrientation(const double quat[4], bool absolute) |
---|
1542 | { |
---|
1543 | if (_manipulator.valid()) { |
---|
1544 | _manipulator->setRotation(osg::Quat(quat[1], quat[2], quat[3], quat[0])); |
---|
1545 | _needsRedraw = true; |
---|
1546 | } |
---|
1547 | } |
---|
1548 | |
---|
1549 | /** |
---|
1550 | * \brief Reset pan, zoom, clipping planes and optionally rotation |
---|
1551 | * |
---|
1552 | * \param[in] resetOrientation Reset the camera rotation/orientation also |
---|
1553 | */ |
---|
1554 | void Renderer::resetCamera(bool resetOrientation) |
---|
1555 | { |
---|
1556 | TRACE("Enter: resetOrientation=%d", resetOrientation ? 1 : 0); |
---|
1557 | if (_viewer.valid()) { |
---|
1558 | _viewer->home(); |
---|
1559 | _needsRedraw = true; |
---|
1560 | } |
---|
1561 | } |
---|
1562 | |
---|
1563 | /** |
---|
1564 | * \brief Perform a 2D translation of the camera |
---|
1565 | * |
---|
1566 | * x,y pan amount are specified as signed absolute pan amount in viewport |
---|
1567 | * units -- i.e. 0 is no pan, .5 is half the viewport, 2 is twice the viewport, |
---|
1568 | * etc. |
---|
1569 | * |
---|
1570 | * \param[in] x Viewport coordinate horizontal panning (positive number pans |
---|
1571 | * camera left, object right) |
---|
1572 | * \param[in] y Viewport coordinate vertical panning (positive number pans |
---|
1573 | * camera up, object down) |
---|
1574 | */ |
---|
1575 | void Renderer::panCamera(double x, double y) |
---|
1576 | { |
---|
1577 | TRACE("Enter: %g %g", x, y); |
---|
1578 | |
---|
1579 | if (_manipulator.valid()) { |
---|
1580 | // Wants mouse delta x,y in normalized screen coords |
---|
1581 | _manipulator->pan(x, y); |
---|
1582 | _needsRedraw = true; |
---|
1583 | } |
---|
1584 | } |
---|
1585 | |
---|
1586 | void Renderer::rotateCamera(double x, double y) |
---|
1587 | { |
---|
1588 | TRACE("Enter: %g %g", x, y); |
---|
1589 | |
---|
1590 | if (_manipulator.valid()) { |
---|
1591 | _manipulator->rotate(x, y); |
---|
1592 | _needsRedraw = true; |
---|
1593 | } |
---|
1594 | } |
---|
1595 | |
---|
1596 | /** |
---|
1597 | * \brief Dolly camera or set orthographic scaling based on camera type |
---|
1598 | * |
---|
1599 | * \param[in] y Mouse y coordinate in normalized screen coords |
---|
1600 | */ |
---|
1601 | void Renderer::zoomCamera(double y) |
---|
1602 | { |
---|
1603 | TRACE("Enter: y: %g", y); |
---|
1604 | |
---|
1605 | if (_manipulator.valid()) { |
---|
1606 | TRACE("camDist: %g", _manipulator->getDistance()); |
---|
1607 | // FIXME: zoom here wants y mouse coords in normalized viewport coords |
---|
1608 | #if 1 |
---|
1609 | _manipulator->zoom(0, y); |
---|
1610 | #else |
---|
1611 | double dist = _manipulator->getDistance(); |
---|
1612 | dist *= (1.0 + y); |
---|
1613 | _manipulator->setDistance(dist); |
---|
1614 | #endif |
---|
1615 | _needsRedraw = true; |
---|
1616 | } |
---|
1617 | } |
---|
1618 | |
---|
1619 | /** |
---|
1620 | * \brief Dolly camera to set distance from focal point |
---|
1621 | * |
---|
1622 | * \param[in] dist distance in map? coordinates |
---|
1623 | */ |
---|
1624 | void Renderer::setCameraDistance(double dist) |
---|
1625 | { |
---|
1626 | TRACE("Enter: dist: %g", dist); |
---|
1627 | |
---|
1628 | if (_manipulator.valid()) { |
---|
1629 | TRACE("camDist: %g", _manipulator->getDistance()); |
---|
1630 | |
---|
1631 | _manipulator->setDistance(dist); |
---|
1632 | |
---|
1633 | _needsRedraw = true; |
---|
1634 | } |
---|
1635 | } |
---|
1636 | |
---|
1637 | void Renderer::keyPress(int key) |
---|
1638 | { |
---|
1639 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1640 | if (queue != NULL) { |
---|
1641 | queue->keyPress(key); |
---|
1642 | _needsRedraw = true; |
---|
1643 | } |
---|
1644 | } |
---|
1645 | |
---|
1646 | void Renderer::keyRelease(int key) |
---|
1647 | { |
---|
1648 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1649 | if (queue != NULL) { |
---|
1650 | queue->keyRelease(key); |
---|
1651 | _needsRedraw = true; |
---|
1652 | } |
---|
1653 | } |
---|
1654 | |
---|
1655 | void Renderer::setThrowingEnabled(bool state) |
---|
1656 | { |
---|
1657 | if (_manipulator.valid()) { |
---|
1658 | _manipulator->getSettings()->setThrowingEnabled(state); |
---|
1659 | } |
---|
1660 | } |
---|
1661 | |
---|
1662 | void Renderer::mouseDoubleClick(int button, double x, double y) |
---|
1663 | { |
---|
1664 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1665 | if (queue != NULL) { |
---|
1666 | queue->mouseDoubleButtonPress((float)x, (float)y, button); |
---|
1667 | _needsRedraw = true; |
---|
1668 | } |
---|
1669 | } |
---|
1670 | |
---|
1671 | void Renderer::mouseClick(int button, double x, double y) |
---|
1672 | { |
---|
1673 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1674 | if (queue != NULL) { |
---|
1675 | queue->mouseButtonPress((float)x, (float)y, button); |
---|
1676 | _needsRedraw = true; |
---|
1677 | } |
---|
1678 | } |
---|
1679 | |
---|
1680 | void Renderer::mouseDrag(int button, double x, double y) |
---|
1681 | { |
---|
1682 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1683 | if (queue != NULL) { |
---|
1684 | queue->mouseMotion((float)x, (float)y); |
---|
1685 | _needsRedraw = true; |
---|
1686 | } |
---|
1687 | } |
---|
1688 | |
---|
1689 | void Renderer::mouseRelease(int button, double x, double y) |
---|
1690 | { |
---|
1691 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1692 | if (queue != NULL) { |
---|
1693 | queue->mouseButtonRelease((float)x, (float)y, button); |
---|
1694 | _needsRedraw = true; |
---|
1695 | } |
---|
1696 | } |
---|
1697 | |
---|
1698 | void Renderer::mouseMotion(double x, double y) |
---|
1699 | { |
---|
1700 | if (_mouseCoordsTool.valid()) { |
---|
1701 | #if 1 |
---|
1702 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1703 | if (queue != NULL) { |
---|
1704 | queue->mouseMotion((float)x, (float)y); |
---|
1705 | _needsRedraw = true; |
---|
1706 | } |
---|
1707 | #else |
---|
1708 | if (_viewer.valid() && _coordsCallback.valid()) { |
---|
1709 | osgEarth::GeoPoint mapPt; |
---|
1710 | if (mapMouseCoords((float)x, (float)y, mapPt)) { |
---|
1711 | _coordsCallback->set(mapPt, _viewer->asView(), _mapNode); |
---|
1712 | } else { |
---|
1713 | _coordsCallback->reset(_viewer->asView(), _mapNode); |
---|
1714 | } |
---|
1715 | _needsRedraw = true; |
---|
1716 | } |
---|
1717 | #endif |
---|
1718 | } |
---|
1719 | } |
---|
1720 | |
---|
1721 | void Renderer::mouseScroll(int direction) |
---|
1722 | { |
---|
1723 | osgGA::EventQueue *queue = getEventQueue(); |
---|
1724 | if (queue != NULL) { |
---|
1725 | queue->mouseScroll((direction > 0 ? osgGA::GUIEventAdapter::SCROLL_UP : osgGA::GUIEventAdapter::SCROLL_DOWN)); |
---|
1726 | _needsRedraw = true; |
---|
1727 | } |
---|
1728 | } |
---|
1729 | |
---|
1730 | /** |
---|
1731 | * \brief Set the RGB background color to render into the image |
---|
1732 | */ |
---|
1733 | void Renderer::setBackgroundColor(float color[3]) |
---|
1734 | { |
---|
1735 | _bgColor[0] = color[0]; |
---|
1736 | _bgColor[1] = color[1]; |
---|
1737 | _bgColor[2] = color[2]; |
---|
1738 | |
---|
1739 | if (_viewer.valid()) { |
---|
1740 | _viewer->getCamera()->setClearColor(osg::Vec4(color[0], color[1], color[2], 1)); |
---|
1741 | |
---|
1742 | _needsRedraw = true; |
---|
1743 | } |
---|
1744 | } |
---|
1745 | |
---|
1746 | /** |
---|
1747 | * \brief Sets flag to trigger rendering next time render() is called |
---|
1748 | */ |
---|
1749 | void Renderer::eventuallyRender() |
---|
1750 | { |
---|
1751 | _needsRedraw = true; |
---|
1752 | } |
---|
1753 | |
---|
1754 | /** |
---|
1755 | * \brief Get a timeout in usecs for select() |
---|
1756 | * |
---|
1757 | * If the paging thread is idle, returns <0 indicating that the |
---|
1758 | * select call can block until data is available. Otherwise, |
---|
1759 | * if the frame render time was faster than the target frame |
---|
1760 | * rate, return the remaining frame time. |
---|
1761 | */ |
---|
1762 | long Renderer::getTimeout() |
---|
1763 | { |
---|
1764 | if (!checkNeedToDoFrame()) |
---|
1765 | // <0 means no timeout, block until socket has data |
---|
1766 | return -1L; |
---|
1767 | if (_lastFrameTime < _minFrameTime) { |
---|
1768 | return (long)1.0e6*(_minFrameTime - _lastFrameTime); |
---|
1769 | } else { |
---|
1770 | // No timeout (poll) |
---|
1771 | return 0L; |
---|
1772 | } |
---|
1773 | } |
---|
1774 | |
---|
1775 | /** |
---|
1776 | * \brief Check if paging thread is quiescent |
---|
1777 | */ |
---|
1778 | bool Renderer::isPagerIdle() |
---|
1779 | { |
---|
1780 | if (!_viewer.valid()) |
---|
1781 | return true; |
---|
1782 | else |
---|
1783 | return (!_viewer->getDatabasePager()->requiresUpdateSceneGraph() && |
---|
1784 | !_viewer->getDatabasePager()->getRequestsInProgress()); |
---|
1785 | } |
---|
1786 | |
---|
1787 | /** |
---|
1788 | * \brief Check is frame call is necessary to render and/or update |
---|
1789 | * in response to events or timed actions |
---|
1790 | */ |
---|
1791 | bool Renderer::checkNeedToDoFrame() |
---|
1792 | { |
---|
1793 | return (_needsRedraw || |
---|
1794 | (_viewer.valid() && _viewer->checkNeedToDoFrame())); |
---|
1795 | } |
---|
1796 | |
---|
1797 | /** |
---|
1798 | * \brief MapNode event phase |
---|
1799 | * |
---|
1800 | * This is called by the MapNode's event callback during the event |
---|
1801 | * traversal of the viewer |
---|
1802 | */ |
---|
1803 | void Renderer::mapNodeUpdate() |
---|
1804 | { |
---|
1805 | computeMapScale(); |
---|
1806 | } |
---|
1807 | |
---|
1808 | void Renderer::markFrameStart() |
---|
1809 | { |
---|
1810 | _startFrameTime = osg::Timer::instance()->tick(); |
---|
1811 | } |
---|
1812 | |
---|
1813 | void Renderer::markFrameEnd() |
---|
1814 | { |
---|
1815 | osg::Timer_t endFrameTick = osg::Timer::instance()->tick(); |
---|
1816 | _lastFrameTime = osg::Timer::instance()->delta_s(_startFrameTime, endFrameTick); |
---|
1817 | if (_lastFrameTime > _minFrameTime) { |
---|
1818 | ERROR("BROKE FRAME by %.2f msec", (_lastFrameTime - _minFrameTime)*1000.0f); |
---|
1819 | } else { |
---|
1820 | TRACE("Frame time: %.2f msec", _lastFrameTime*1000.0f); |
---|
1821 | } |
---|
1822 | #ifdef USE_THROTTLING_SLEEP |
---|
1823 | if (_lastFrameTime < _minFrameTime) { |
---|
1824 | TRACE("Sleeping for %.2f msec", (_minFrameTime - _lastFrameTime)*1000.0f); |
---|
1825 | OpenThreads::Thread::microSleep(static_cast<unsigned int>(1000000.0*(_minFrameTime - _lastFrameTime))); |
---|
1826 | } |
---|
1827 | #endif |
---|
1828 | } |
---|
1829 | |
---|
1830 | /** |
---|
1831 | * \brief Cause the rendering to render a new image if needed |
---|
1832 | * |
---|
1833 | * The _needsRedraw flag indicates if a state change has occured since |
---|
1834 | * the last rendered frame |
---|
1835 | */ |
---|
1836 | bool Renderer::render() |
---|
1837 | { |
---|
1838 | if (_viewer.valid() && checkNeedToDoFrame()) { |
---|
1839 | TRACE("Enter needsRedraw=%d", _needsRedraw ? 1 : 0); |
---|
1840 | _renderStartTime = osg::Timer::instance()->tick(); |
---|
1841 | TRACE("Before frame()"); |
---|
1842 | _viewer->frame(); |
---|
1843 | TRACE("After frame()"); |
---|
1844 | _renderStopTime = osg::Timer::instance()->tick(); |
---|
1845 | _renderTime = osg::Timer::instance()->delta_s(_renderStartTime, _renderStopTime); |
---|
1846 | TRACE("Render time: %g msec", _renderTime * 1000.0); |
---|
1847 | #ifndef SLEEP_AFTER_QUEUE_FRAME |
---|
1848 | _lastFrameTime = _renderTime; |
---|
1849 | #ifdef USE_THROTTLING_SLEEP |
---|
1850 | if (_lastFrameTime < _minFrameTime) { |
---|
1851 | TRACE("Sleeping for %.2f msec", (_minFrameTime - _lastFrameTime)*1000.0f); |
---|
1852 | OpenThreads::Thread::microSleep(static_cast<unsigned int>(1.0e6*(_minFrameTime - _lastFrameTime))); |
---|
1853 | } |
---|
1854 | #endif |
---|
1855 | #endif |
---|
1856 | #ifdef WANT_TRACE |
---|
1857 | if (_viewer->getViewerStats() != NULL) { |
---|
1858 | _viewer->getViewerStats()->report(std::cerr, _viewer->getViewerStats()->getLatestFrameNumber()); |
---|
1859 | } |
---|
1860 | #endif |
---|
1861 | _needsRedraw = false; |
---|
1862 | return true; |
---|
1863 | } else { |
---|
1864 | _renderStartTime = _renderStopTime = osg::Timer::instance()->tick(); |
---|
1865 | _renderTime = 0; |
---|
1866 | return false; |
---|
1867 | } |
---|
1868 | } |
---|
1869 | |
---|
1870 | /** |
---|
1871 | * \brief Read back the rendered framebuffer image |
---|
1872 | */ |
---|
1873 | osg::Image *Renderer::getRenderedFrame() |
---|
1874 | { |
---|
1875 | if (_captureCallback.valid()) |
---|
1876 | return _captureCallback->getImage(); |
---|
1877 | else |
---|
1878 | return NULL; |
---|
1879 | } |
---|
1880 | |
---|
1881 | void Renderer::setScaleBar(bool state) |
---|
1882 | { |
---|
1883 | if (_scaleLabel.valid()) { |
---|
1884 | _scaleLabel->setVisible(state); |
---|
1885 | } |
---|
1886 | if (_scaleBar.valid()) { |
---|
1887 | _scaleBar->setVisible(state); |
---|
1888 | } |
---|
1889 | _needsRedraw = true; |
---|
1890 | } |
---|
1891 | |
---|
1892 | void Renderer::setScaleBarUnits(ScaleBarUnits units) |
---|
1893 | { |
---|
1894 | _scaleBarUnits = units; |
---|
1895 | _needsRedraw = true; |
---|
1896 | } |
---|
1897 | |
---|
1898 | /** |
---|
1899 | * \brief Compute the scale ratio of the map based on a horizontal center line |
---|
1900 | * |
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1901 | * The idea here is to take 2 screen points on a horizontal line in the center |
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1902 | * of the screen and convert to lat/long. The lat/long coordinates are then |
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1903 | * used to compute the great circle distance (assuming spherical earth) between |
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1904 | * the points. |
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1905 | * |
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1906 | * We could use local projected map coordinates for the distance computation, |
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1907 | * which would be faster; however, this would not show e.g. the change in |
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1908 | * scale at different latitudes |
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1909 | */ |
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1910 | double Renderer::computeMapScale() |
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1911 | { |
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1912 | if (!_scaleLabel.valid() || !_scaleLabel->visible()) { |
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1913 | return -1.0; |
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1914 | } |
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1915 | if (!_mapNode.valid() || _mapNode->getTerrain() == NULL) { |
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1916 | ERROR("No map"); |
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1917 | return -1.0; |
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1918 | } |
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1919 | if (!_viewer.valid()) { |
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1920 | ERROR("No viewer"); |
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1921 | return -1.0; |
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1922 | } |
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1923 | |
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1924 | double x, y; |
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1925 | double pixelWidth = _windowWidth * 0.1 * 2.0; |
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1926 | if (pixelWidth < 10) |
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1927 | pixelWidth = 10; |
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1928 | if (pixelWidth > 150) |
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1929 | pixelWidth = 150; |
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1930 | x = (double)(_windowWidth -1)/2.0 - pixelWidth / 2.0; |
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1931 | y = (double)(_windowHeight-1)/2.0; |
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1932 | |
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1933 | osg::Vec3d world1, world2; |
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1934 | if (!_mapNode->getTerrain()->getWorldCoordsUnderMouse(_viewer->asView(), x, y, world1)) { |
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1935 | // off map |
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1936 | TRACE("Off map coords: %g %g", x, y); |
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1937 | _scaleLabel->setText(""); |
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1938 | _scaleBar->setWidth(0); |
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1939 | return -1.0; |
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1940 | } |
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1941 | x += pixelWidth; |
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1942 | if (!_mapNode->getTerrain()->getWorldCoordsUnderMouse(_viewer->asView(), x, y, world2)) { |
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1943 | // off map |
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1944 | TRACE("Off map coords: %g %g", x, y); |
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1945 | _scaleLabel->setText(""); |
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1946 | _scaleBar->setWidth(0); |
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1947 | return -1.0; |
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1948 | } |
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1949 | |
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1950 | TRACE("w1: %g %g %g w2: %g %g %g", |
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1951 | world1.x(), world1.y(), world1.z(), |
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1952 | world2.x(), world2.y(), world2.z()); |
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1953 | |
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1954 | double meters; |
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1955 | double radius = 6378137.0; |
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1956 | if (_mapNode->getMapSRS() && |
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1957 | _mapNode->getMapSRS()->getEllipsoid()) { |
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1958 | radius = _mapNode->getMapSRS()->getEllipsoid()->getRadiusEquator(); |
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1959 | } |
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1960 | if (!_map->isGeocentric() && |
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1961 | _mapNode->getMapSRS() && |
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1962 | _mapNode->getMapSRS()->isGeographic()) { |
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1963 | TRACE("Map is geographic"); |
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1964 | // World cords are already lat/long |
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1965 | // Compute great circle distance |
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1966 | meters = |
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1967 | osgEarth::GeoMath::distance(world1, world2, _mapNode->getMapSRS()); |
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1968 | } else if (_mapNode->getMapSRS()) { |
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1969 | // Get map coords in lat/long |
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1970 | osgEarth::GeoPoint mapPoint1, mapPoint2; |
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1971 | mapPoint1.fromWorld(_mapNode->getMapSRS(), world1); |
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1972 | mapPoint1.makeGeographic(); |
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1973 | mapPoint2.fromWorld(_mapNode->getMapSRS(), world2); |
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1974 | mapPoint2.makeGeographic(); |
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1975 | // Compute great circle distance |
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1976 | meters = |
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1977 | osgEarth::GeoMath::distance(osg::DegreesToRadians(mapPoint1.y()), |
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1978 | osg::DegreesToRadians(mapPoint1.x()), |
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1979 | osg::DegreesToRadians(mapPoint2.y()), |
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1980 | osg::DegreesToRadians(mapPoint2.x()), |
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1981 | radius); |
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1982 | } else { |
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1983 | // Assume geocentric? |
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1984 | ERROR("No map SRS"); |
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1985 | _scaleLabel->setText(""); |
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1986 | _scaleBar->setWidth(0); |
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1987 | return -1.0; |
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1988 | } |
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1989 | |
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1990 | double scale = meters / pixelWidth; |
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1991 | // 1mi = 5280 feet |
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1992 | //double scaleMiles = scale / 1609.344; // International mile = 1609.344m |
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1993 | //double scaleNauticalMiles = scale / 1852.0; // nautical mile = 1852m |
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1994 | //double scaleUSSurveyMiles = scale / 1609.347218694; // US survey mile = 5280 US survey feet |
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1995 | //double scaleUSSurveyFeet = scale * 3937.0/1200.0; // US survey foot = 1200/3937 m |
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1996 | TRACE("m: %g px: %g m/px: %g", meters, pixelWidth, scale); |
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1997 | switch (_scaleBarUnits) { |
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1998 | case UNITS_NAUTICAL_MILES: { |
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1999 | double nmi = meters / 1852.0; |
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2000 | scale = nmi / pixelWidth; |
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2001 | nmi = normalizeScaleNauticalMiles(nmi); |
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2002 | pixelWidth = nmi / scale; |
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2003 | if (_scaleLabel.valid()) { |
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2004 | _scaleLabel->setText(osgEarth::Stringify() |
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2005 | << nmi |
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2006 | << " nmi"); |
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2007 | } |
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2008 | } |
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2009 | break; |
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2010 | case UNITS_US_SURVEY_FEET: { |
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2011 | double feet = meters * 3937.0/1200.0; |
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2012 | scale = feet / pixelWidth; |
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2013 | feet = normalizeScaleFeet(feet); |
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2014 | pixelWidth = feet / scale; |
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2015 | if (_scaleLabel.valid()) { |
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2016 | if (feet >= 5280) { |
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2017 | _scaleLabel->setText(osgEarth::Stringify() |
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2018 | << feet / 5280.0 |
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2019 | << " miUS"); |
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2020 | } else { |
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2021 | _scaleLabel->setText(osgEarth::Stringify() |
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2022 | << feet |
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2023 | << " ftUS"); |
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2024 | } |
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2025 | } |
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2026 | } |
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2027 | break; |
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2028 | case UNITS_INTL_FEET: { |
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2029 | double feet = 5280.0 * meters / 1609.344; |
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2030 | scale = feet / pixelWidth; |
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2031 | feet = normalizeScaleFeet(feet); |
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2032 | pixelWidth = feet / scale; |
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2033 | if (_scaleLabel.valid()) { |
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2034 | if (feet >= 5280) { |
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2035 | _scaleLabel->setText(osgEarth::Stringify() |
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2036 | << feet / 5280.0 |
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2037 | << " mi"); |
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2038 | } else { |
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2039 | _scaleLabel->setText(osgEarth::Stringify() |
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2040 | << feet |
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2041 | << " ft"); |
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2042 | } |
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2043 | } |
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2044 | } |
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2045 | break; |
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2046 | case UNITS_METERS: |
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2047 | default: { |
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2048 | meters = normalizeScaleMeters(meters); |
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2049 | pixelWidth = meters / scale; |
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2050 | if (_scaleLabel.valid()) { |
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2051 | if (meters >= 1000) { |
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2052 | _scaleLabel->setText(osgEarth::Stringify() |
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2053 | << meters / 1000.0 |
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2054 | << " km"); |
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2055 | } else { |
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2056 | _scaleLabel->setText(osgEarth::Stringify() |
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2057 | << meters |
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2058 | << " m"); |
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2059 | } |
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2060 | } |
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2061 | } |
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2062 | break; |
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2063 | } |
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2064 | if (_scaleBar.valid()) { |
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2065 | _scaleBar->setWidth(pixelWidth); |
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2066 | } |
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2067 | return scale; |
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2068 | } |
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2069 | |
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2070 | std::string Renderer::getCanonicalPath(const std::string& url) const |
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2071 | { |
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2072 | std::string retStr; |
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2073 | std::string proto = osgDB::getServerProtocol(url); |
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2074 | if (proto.empty()) { |
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2075 | retStr = osgDB::getRealPath(url); |
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2076 | if (!osgDB::fileExists(retStr)) { |
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2077 | retStr = ""; |
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2078 | } |
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2079 | } else { |
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2080 | retStr = url; |
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2081 | } |
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2082 | return retStr; |
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2083 | } |
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