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 | #ifndef GEOVIS_RENDERER_H |
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9 | #define GEOVIS_RENDERER_H |
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10 | |
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11 | #include <string> |
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12 | #include <vector> |
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13 | #include <tr1/unordered_map> |
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14 | #include <typeinfo> |
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15 | |
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16 | #include <osg/ref_ptr> |
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17 | #include <osg/Node> |
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18 | #include <osg/Image> |
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19 | #include <osg/TransferFunction> |
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20 | #include <osgViewer/Viewer> |
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21 | #include <osgGA/StateSetManipulator> |
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22 | |
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23 | #include <osgEarth/StringUtils> |
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24 | #include <osgEarth/Map> |
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25 | #include <osgEarth/Viewpoint> |
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26 | #include <osgEarth/ImageLayer> |
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27 | #include <osgEarth/ElevationLayer> |
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28 | #include <osgEarth/ModelLayer> |
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29 | #include <osgEarth/TileSource> |
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30 | #include <osgEarth/ModelSource> |
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31 | #include <osgEarth/GeoData> |
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32 | #include <osgEarthUtil/EarthManipulator> |
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33 | #include <osgEarthUtil/MouseCoordsTool> |
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34 | #include <osgEarthUtil/Controls> |
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35 | #include <osgEarthUtil/Formatter> |
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36 | #include <osgEarthUtil/AutoClipPlaneHandler> |
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37 | #include <osgEarthUtil/VerticalScale> |
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38 | |
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39 | #include "Types.h" |
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40 | #include "Trace.h" |
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41 | |
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42 | // Controls if TGA format is sent to client |
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43 | //#define RENDER_TARGA |
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44 | #define TARGA_BYTES_PER_PIXEL 3 |
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45 | |
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46 | namespace GeoVis { |
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47 | |
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48 | class ScreenCaptureCallback : public osg::Camera::DrawCallback |
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49 | { |
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50 | public: |
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51 | ScreenCaptureCallback() : |
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52 | osg::Camera::DrawCallback() |
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53 | { |
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54 | _image = new osg::Image; |
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55 | } |
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56 | |
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57 | virtual void operator()(osg::RenderInfo &renderInfo) const |
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58 | { |
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59 | TRACE("Enter ScreenCaptureCallback"); |
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60 | int width, height; |
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61 | if (renderInfo.getCurrentCamera() == NULL) { |
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62 | ERROR("No camera"); |
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63 | return; |
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64 | } |
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65 | if (renderInfo.getCurrentCamera()->getViewport() == NULL) { |
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66 | ERROR("No viewport"); |
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67 | return; |
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68 | } |
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69 | width = (int)renderInfo.getCurrentCamera()->getViewport()->width(); |
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70 | height = (int)renderInfo.getCurrentCamera()->getViewport()->height(); |
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71 | TRACE("readPixels: %d x %d", width, height); |
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72 | #ifdef RENDER_TARGA |
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73 | _image->readPixels(0, 0, width, height, |
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74 | GL_BGR, GL_UNSIGNED_BYTE); |
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75 | #else |
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76 | _image->readPixels(0, 0, width, height, |
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77 | GL_RGB, GL_UNSIGNED_BYTE); |
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78 | #endif |
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79 | } |
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80 | |
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81 | osg::Image *getImage() |
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82 | { |
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83 | return _image.get(); |
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84 | } |
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85 | |
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86 | private: |
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87 | osg::ref_ptr<osg::Image> _image; |
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88 | }; |
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89 | |
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90 | class MouseCoordsCallback : public osgEarth::Util::MouseCoordsTool::Callback |
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91 | { |
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92 | public: |
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93 | MouseCoordsCallback(osgEarth::Util::Controls::LabelControl *label, |
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94 | osgEarth::Util::Formatter *formatter) : |
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95 | osgEarth::Util::MouseCoordsTool::Callback(), |
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96 | _label(label), |
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97 | _formatter(formatter), |
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98 | _havePoint(false) |
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99 | { |
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100 | } |
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101 | |
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102 | void set(const osgEarth::GeoPoint& p, osg::View *view, osgEarth::MapNode *mapNode) |
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103 | { |
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104 | TRACE("%g %g %g", p.x(), p.y(), p.z()); |
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105 | if (_label.valid()) { |
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106 | _label->setText(osgEarth::Stringify() |
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107 | << "Lat/Long: " |
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108 | << _formatter->format(p)); |
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109 | //<< ", " << p.z()); |
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110 | } |
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111 | _pt = p; |
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112 | _havePoint = true; |
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113 | } |
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114 | |
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115 | void reset(osg::View *view, osgEarth::MapNode *mapNode) |
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116 | { |
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117 | TRACE("Out of range"); |
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118 | // Out of range of map extents |
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119 | if (_label.valid()) { |
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120 | _label->setText(""); |
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121 | } |
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122 | _havePoint = false; |
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123 | } |
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124 | |
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125 | bool report(double *x, double *y, double *z) |
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126 | { |
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127 | if (_havePoint) { |
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128 | *x = _pt.x(); |
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129 | *y = _pt.y(); |
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130 | *z = _pt.z(); |
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131 | _havePoint = false; |
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132 | return true; |
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133 | } |
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134 | return false; |
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135 | } |
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136 | |
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137 | private: |
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138 | osg::observer_ptr<osgEarth::Util::Controls::LabelControl> _label; |
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139 | osg::ref_ptr<osgEarth::Util::Formatter> _formatter; |
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140 | bool _havePoint; |
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141 | osgEarth::GeoPoint _pt; |
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142 | }; |
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143 | |
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144 | /** |
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145 | * \brief GIS Renderer |
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146 | */ |
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147 | class Renderer |
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148 | { |
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149 | public: |
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150 | typedef std::string ColorMapId; |
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151 | typedef std::string ViewpointId; |
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152 | |
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153 | enum GraticuleType { |
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154 | GRATICULE_UTM, |
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155 | GRATICULE_MGRS, |
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156 | GRATICULE_GEODETIC |
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157 | }; |
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158 | |
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159 | Renderer(); |
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160 | virtual ~Renderer(); |
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161 | |
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162 | // Colormaps |
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163 | |
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164 | void addColorMap(const ColorMapId& id, osg::TransferFunction1D *xfer); |
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165 | |
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166 | void deleteColorMap(const ColorMapId& id); |
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167 | |
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168 | void setColorMapNumberOfTableEntries(const ColorMapId& id, int numEntries); |
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169 | |
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170 | // Scene |
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171 | |
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172 | void loadEarthFile(const char *path); |
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173 | |
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174 | void resetMap(osgEarth::MapOptions::CoordinateSystemType type, |
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175 | const char *profile = NULL, |
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176 | double bounds[4] = NULL); |
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177 | |
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178 | void clearMap(); |
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179 | |
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180 | // Map options |
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181 | |
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182 | void setGraticule(bool enable, GraticuleType type = GRATICULE_GEODETIC); |
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183 | |
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184 | void setViewerLightType(osg::View::LightingMode mode); |
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185 | |
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186 | void setLighting(bool state); |
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187 | |
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188 | void setTerrainLighting(bool state); |
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189 | |
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190 | void setTerrainVerticalScale(double scale); |
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191 | |
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192 | void setTerrainWireframe(bool state); |
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193 | |
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194 | // Image raster layers |
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195 | |
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196 | int getNumImageLayers() const |
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197 | { |
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198 | return (_map.valid() ? _map->getNumImageLayers() : 0); |
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199 | } |
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200 | |
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201 | void getImageLayerNames(std::vector<std::string>& names) |
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202 | { |
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203 | if (_map.valid()) { |
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204 | osgEarth::ImageLayerVector layerVector; |
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205 | _map->getImageLayers(layerVector); |
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206 | osgEarth::ImageLayerVector::const_iterator itr; |
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207 | for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) { |
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208 | //osgEarth::UID uid = (*itr)->getUID(); |
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209 | names.push_back((*itr)->getName()); |
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210 | } |
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211 | } |
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212 | } |
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213 | |
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214 | void addImageLayer(const char *name, osgEarth::TileSourceOptions& opts, |
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215 | bool makeShared = false, bool visible = true); |
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216 | |
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217 | void removeImageLayer(const char *name); |
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218 | |
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219 | void moveImageLayer(const char *name, unsigned int pos); |
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220 | |
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221 | void setImageLayerOpacity(const char *name, double opacity); |
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222 | |
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223 | void setImageLayerVisibility(const char *name, bool state); |
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224 | |
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225 | void addColorFilter(const char *name, const char *shader); |
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226 | |
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227 | void removeColorFilter(const char *name, int idx = -1); |
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228 | |
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229 | // Elevation raster layers |
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230 | |
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231 | int getNumElevationLayers() const |
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232 | { |
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233 | return (_map.valid() ? _map->getNumElevationLayers() : 0); |
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234 | } |
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235 | |
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236 | void getElevationLayerNames(std::vector<std::string>& names) |
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237 | { |
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238 | if (_map.valid()) { |
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239 | osgEarth::ElevationLayerVector layerVector; |
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240 | _map->getElevationLayers(layerVector); |
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241 | osgEarth::ElevationLayerVector::const_iterator itr; |
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242 | for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) { |
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243 | //osgEarth::UID uid = (*itr)->getUID(); |
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244 | names.push_back((*itr)->getName()); |
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245 | } |
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246 | } |
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247 | } |
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248 | |
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249 | void addElevationLayer(const char *name, osgEarth::TileSourceOptions& opts); |
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250 | |
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251 | void removeElevationLayer(const char *name); |
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252 | |
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253 | void moveElevationLayer(const char *name, unsigned int pos); |
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254 | |
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255 | void setElevationLayerVisibility(const char *name, bool state); |
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256 | |
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257 | // Model layers |
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258 | |
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259 | int getNumModelLayers() const |
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260 | { |
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261 | return (_map.valid() ? _map->getNumModelLayers() : 0); |
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262 | } |
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263 | |
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264 | void getModelLayerNames(std::vector<std::string>& names) |
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265 | { |
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266 | if (_map.valid()) { |
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267 | osgEarth::ModelLayerVector layerVector; |
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268 | _map->getModelLayers(layerVector); |
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269 | osgEarth::ModelLayerVector::const_iterator itr; |
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270 | for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) { |
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271 | //osgEarth::UID uid = (*itr)->getUID(); |
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272 | names.push_back((*itr)->getName()); |
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273 | } |
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274 | } |
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275 | } |
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276 | |
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277 | void addModelLayer(const char *name, osgEarth::ModelSourceOptions& opts); |
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278 | |
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279 | void removeModelLayer(const char *name); |
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280 | |
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281 | void moveModelLayer(const char *name, unsigned int pos); |
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282 | |
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283 | void setModelLayerOpacity(const char *name, double opacity); |
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284 | |
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285 | void setModelLayerVisibility(const char *name, bool state); |
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286 | |
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287 | // Render window |
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288 | |
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289 | void setWindowSize(int width, int height); |
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290 | |
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291 | int getWindowWidth() const |
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292 | { |
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293 | return _windowWidth; |
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294 | } |
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295 | |
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296 | int getWindowHeight() const |
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297 | { |
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298 | return _windowHeight; |
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299 | } |
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300 | |
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301 | // Camera |
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302 | |
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303 | void saveNamedViewpoint(const char *name); |
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304 | |
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305 | bool restoreNamedViewpoint(const char *name, double durationSecs); |
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306 | |
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307 | bool removeNamedViewpoint(const char *name); |
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308 | |
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309 | osgEarth::Viewpoint getViewpoint(); |
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310 | |
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311 | void setViewpoint(const osgEarth::Viewpoint& v, double durationSecs = 0.0); |
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312 | |
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313 | void resetCamera(bool resetOrientation = true); |
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314 | |
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315 | void setCameraOrientation(const double quat[4], bool absolute = true); |
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316 | |
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317 | void panCamera(double x, double y); |
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318 | |
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319 | void rotateCamera(double x, double y); |
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320 | |
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321 | void zoomCamera(double z); |
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322 | |
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323 | void setCameraDistance(double dist); |
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324 | |
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325 | // Keyboard events |
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326 | |
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327 | void keyPress(int key); |
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328 | |
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329 | void keyRelease(int key); |
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330 | |
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331 | // Mouse events |
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332 | |
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333 | void setThrowingEnabled(bool state); |
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334 | |
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335 | void mouseClick(int button, double x, double y); |
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336 | |
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337 | void mouseDoubleClick(int button, double x, double y); |
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338 | |
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339 | void mouseDrag(int button, double x, double y); |
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340 | |
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341 | void mouseRelease(int button, double x, double y); |
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342 | |
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343 | void mouseMotion(double x, double y); |
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344 | |
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345 | void mouseScroll(int direction); |
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346 | |
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347 | // Rendering an image |
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348 | |
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349 | void setBackgroundColor(float color[3]); |
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350 | |
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351 | void eventuallyRender(); |
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352 | |
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353 | bool render(); |
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354 | |
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355 | osg::Image *getRenderedFrame(); |
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356 | |
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357 | bool mapMouseCoords(float mouseX, float mouseY, osgEarth::GeoPoint &pt); |
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358 | |
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359 | bool getMousePoint(double *x, double *y, double *z) |
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360 | { |
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361 | return (_coordsCallback.valid() && _coordsCallback->report(x, y, z)); |
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362 | } |
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363 | |
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364 | long getTimeout(); |
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365 | |
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366 | private: |
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367 | typedef std::tr1::unordered_map<ColorMapId, osg::ref_ptr<osg::TransferFunction1D> > ColorMapHashmap; |
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368 | typedef std::tr1::unordered_map<ViewpointId, osgEarth::Viewpoint> ViewpointHashmap; |
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369 | |
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370 | void initViewer(); |
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371 | |
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372 | void finalizeViewer(); |
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373 | |
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374 | void initEarthManipulator(); |
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375 | |
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376 | void initMouseCoordsTool(); |
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377 | |
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378 | void initColorMaps(); |
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379 | |
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380 | void initCamera(); |
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381 | |
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382 | bool isPagerIdle(); |
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383 | |
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384 | bool checkNeedToDoFrame(); |
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385 | |
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386 | osgGA::EventQueue *getEventQueue(); |
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387 | |
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388 | bool _needsRedraw; |
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389 | int _windowWidth, _windowHeight; |
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390 | float _bgColor[3]; |
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391 | |
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392 | double _minFrameTime; |
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393 | double _lastFrameTime; |
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394 | |
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395 | ColorMapHashmap _colorMaps; |
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396 | |
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397 | std::string _baseURI; |
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398 | |
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399 | osg::ref_ptr<osg::Group> _sceneRoot; |
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400 | osg::ref_ptr<osg::Group> _graticule; |
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401 | osg::ref_ptr<osgEarth::MapNode> _mapNode; |
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402 | osg::ref_ptr<osgEarth::Map> _map; |
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403 | osg::ref_ptr<osgViewer::Viewer> _viewer; |
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404 | osg::ref_ptr<ScreenCaptureCallback> _captureCallback; |
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405 | osg::ref_ptr<osgEarth::Util::AutoClipPlaneCullCallback> _clipPlaneCullCallback; |
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406 | osg::ref_ptr<osgEarth::Util::MouseCoordsTool> _mouseCoordsTool; |
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407 | osg::ref_ptr<MouseCoordsCallback> _coordsCallback; |
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408 | osg::ref_ptr<osgEarth::Util::EarthManipulator> _manipulator; |
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409 | osg::ref_ptr<osgGA::StateSetManipulator> _stateManip; |
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410 | osg::ref_ptr<osgEarth::Util::VerticalScale> _verticalScale; |
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411 | ViewpointHashmap _viewpoints; |
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412 | }; |
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413 | |
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414 | } |
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415 | |
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416 | #endif |
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