1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2011, Purdue Research Foundation |
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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 | |
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12 | #include <vtkCamera.h> |
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13 | #include <vtkCoordinate.h> |
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14 | #include <vtkTransform.h> |
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15 | #include <vtkCharArray.h> |
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16 | #include <vtkAxisActor2D.h> |
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17 | #ifdef USE_CUSTOM_AXES |
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18 | #include <vtkRpCubeAxesActor2D.h> |
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19 | #else |
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20 | #include <vtkCubeAxesActor.h> |
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21 | #include <vtkCubeAxesActor2D.h> |
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22 | #endif |
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23 | #include <vtkDataSetReader.h> |
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24 | #include <vtkDataSetMapper.h> |
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25 | #include <vtkContourFilter.h> |
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26 | #include <vtkPolyDataMapper.h> |
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27 | #include <vtkProperty.h> |
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28 | #include <vtkProperty2D.h> |
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29 | #include <vtkPointData.h> |
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30 | #include <vtkLookupTable.h> |
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31 | #include <vtkTextProperty.h> |
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32 | |
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33 | #include "RpVtkRenderer.h" |
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34 | #include "ColorMap.h" |
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35 | #include "Trace.h" |
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36 | |
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37 | using namespace Rappture::VtkVis; |
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38 | |
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39 | Renderer::Renderer() : |
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40 | _needsRedraw(true), |
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41 | _windowWidth(320), |
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42 | _windowHeight(320), |
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43 | _cameraZoomRatio(1), |
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44 | _useCumulativeRange(true), |
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45 | _cumulativeRangeOnlyVisible(false) |
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46 | { |
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47 | _bgColor[0] = 0; |
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48 | _bgColor[1] = 0; |
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49 | _bgColor[2] = 0; |
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50 | _cameraPan[0] = 0; |
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51 | _cameraPan[1] = 0; |
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52 | _cumulativeDataRange[0] = 0.0; |
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53 | _cumulativeDataRange[1] = 1.0; |
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54 | // clipping planes to prevent overdrawing axes |
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55 | _clippingPlanes = vtkSmartPointer<vtkPlaneCollection>::New(); |
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56 | // bottom |
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57 | vtkSmartPointer<vtkPlane> plane0 = vtkSmartPointer<vtkPlane>::New(); |
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58 | plane0->SetNormal(0, 1, 0); |
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59 | plane0->SetOrigin(0, 0, 0); |
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60 | _clippingPlanes->AddItem(plane0); |
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61 | // left |
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62 | vtkSmartPointer<vtkPlane> plane1 = vtkSmartPointer<vtkPlane>::New(); |
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63 | plane1->SetNormal(1, 0, 0); |
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64 | plane1->SetOrigin(0, 0, 0); |
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65 | _clippingPlanes->AddItem(plane1); |
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66 | // top |
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67 | vtkSmartPointer<vtkPlane> plane2 = vtkSmartPointer<vtkPlane>::New(); |
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68 | plane2->SetNormal(0, -1, 0); |
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69 | plane2->SetOrigin(0, 1, 0); |
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70 | _clippingPlanes->AddItem(plane2); |
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71 | // right |
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72 | vtkSmartPointer<vtkPlane> plane3 = vtkSmartPointer<vtkPlane>::New(); |
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73 | plane3->SetNormal(-1, 0, 0); |
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74 | plane3->SetOrigin(1, 0, 0); |
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75 | _clippingPlanes->AddItem(plane3); |
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76 | _renderer = vtkSmartPointer<vtkRenderer>::New(); |
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77 | _renderer->LightFollowCameraOn(); |
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78 | _cameraMode = PERSPECTIVE; |
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79 | initAxes(); |
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80 | initCamera(); |
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81 | storeCameraOrientation(); |
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82 | _renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); |
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83 | _renderWindow->DoubleBufferOff(); |
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84 | //_renderWindow->BordersOff(); |
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85 | _renderWindow->SetSize(_windowWidth, _windowHeight); |
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86 | _renderWindow->OffScreenRenderingOn(); |
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87 | _renderWindow->AddRenderer(_renderer); |
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88 | addColorMap("default", ColorMap::createDefault()); |
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89 | } |
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90 | |
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91 | Renderer::~Renderer() |
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92 | { |
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93 | for (ColorMapHashmap::iterator itr = _colorMaps.begin(); |
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94 | itr != _colorMaps.end(); ++itr) { |
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95 | delete itr->second; |
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96 | } |
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97 | _colorMaps.clear(); |
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98 | for (PseudoColorHashmap::iterator itr = _pseudoColors.begin(); |
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99 | itr != _pseudoColors.end(); ++itr) { |
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100 | delete itr->second; |
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101 | } |
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102 | _pseudoColors.clear(); |
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103 | for (Contour2DHashmap::iterator itr = _contours.begin(); |
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104 | itr != _contours.end(); ++itr) { |
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105 | delete itr->second; |
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106 | } |
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107 | _contours.clear(); |
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108 | for (PolyDataHashmap::iterator itr = _polyDatas.begin(); |
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109 | itr != _polyDatas.end(); ++itr) { |
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110 | delete itr->second; |
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111 | } |
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112 | _polyDatas.clear(); |
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113 | for (DataSetHashmap::iterator itr = _dataSets.begin(); |
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114 | itr != _dataSets.end(); ++itr) { |
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115 | delete itr->second; |
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116 | } |
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117 | _dataSets.clear(); |
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118 | } |
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119 | |
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120 | /** |
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121 | * \brief Add a DataSet to this Renderer |
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122 | * |
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123 | * This just adds the DataSet to the Renderer's list of data sets. |
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124 | * In order to render the data, a PseudoColor or Contour2D must |
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125 | * be added to the Renderer. |
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126 | */ |
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127 | void Renderer::addDataSet(const DataSetId& id) |
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128 | { |
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129 | if (getDataSet(id) != NULL) { |
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130 | WARN("Replacing existing dataset %s", id.c_str()); |
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131 | deleteDataSet(id); |
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132 | } |
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133 | _dataSets[id] = new DataSet(id); |
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134 | } |
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135 | |
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136 | /** |
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137 | * \brief Remove the PseudoColor mapping for the specified DataSet |
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138 | * |
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139 | * The underlying PseudoColor object is deleted, freeing its memory |
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140 | */ |
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141 | void Renderer::deletePseudoColor(const DataSetId& id) |
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142 | { |
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143 | PseudoColorHashmap::iterator itr; |
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144 | |
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145 | bool doAll = false; |
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146 | |
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147 | if (id.compare("all") == 0) { |
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148 | itr = _pseudoColors.begin(); |
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149 | doAll = true; |
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150 | } else { |
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151 | itr = _pseudoColors.find(id); |
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152 | } |
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153 | if (itr == _pseudoColors.end()) { |
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154 | ERROR("PseudoColor not found: %s", id.c_str()); |
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155 | return; |
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156 | } |
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157 | |
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158 | TRACE("Deleting PseudoColors for %s", id.c_str()); |
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159 | |
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160 | do { |
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161 | PseudoColor *ps = itr->second; |
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162 | if (ps->getActor()) |
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163 | _renderer->RemoveActor(ps->getActor()); |
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164 | delete ps; |
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165 | |
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166 | _pseudoColors.erase(itr); |
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167 | } while (doAll && ++itr != _pseudoColors.end()); |
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168 | |
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169 | _needsRedraw = true; |
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170 | } |
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171 | |
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172 | /** |
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173 | * \brief Remove the Contour2D isolines for the specified DataSet |
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174 | * |
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175 | * The underlying Contour2D is deleted, freeing its memory |
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176 | */ |
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177 | void Renderer::deleteContour2D(const DataSetId& id) |
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178 | { |
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179 | Contour2DHashmap::iterator itr; |
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180 | |
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181 | bool doAll = false; |
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182 | |
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183 | if (id.compare("all") == 0) { |
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184 | itr = _contours.begin(); |
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185 | doAll = true; |
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186 | } else { |
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187 | itr = _contours.find(id); |
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188 | } |
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189 | if (itr == _contours.end()) { |
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190 | ERROR("Contour2D not found: %s", id.c_str()); |
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191 | return; |
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192 | } |
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193 | |
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194 | TRACE("Deleting Contour2Ds for %s", id.c_str()); |
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195 | |
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196 | do { |
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197 | Contour2D *contour = itr->second; |
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198 | if (contour->getActor()) |
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199 | _renderer->RemoveActor(contour->getActor()); |
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200 | delete contour; |
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201 | |
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202 | _contours.erase(itr); |
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203 | } while (doAll && ++itr != _contours.end()); |
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204 | |
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205 | _needsRedraw = true; |
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206 | } |
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207 | |
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208 | /** |
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209 | * \brief Remove the PolyData mesh for the specified DataSet |
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210 | * |
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211 | * The underlying PolyData is deleted, freeing its memory |
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212 | */ |
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213 | void Renderer::deletePolyData(const DataSetId& id) |
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214 | { |
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215 | PolyDataHashmap::iterator itr; |
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216 | |
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217 | bool doAll = false; |
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218 | |
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219 | if (id.compare("all") == 0) { |
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220 | itr = _polyDatas.begin(); |
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221 | doAll = true; |
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222 | } else { |
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223 | itr = _polyDatas.find(id); |
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224 | } |
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225 | if (itr == _polyDatas.end()) { |
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226 | ERROR("PolyData not found: %s", id.c_str()); |
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227 | return; |
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228 | } |
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229 | |
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230 | TRACE("Deleting PolyDatas for %s", id.c_str()); |
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231 | |
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232 | do { |
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233 | PolyData *polyData = itr->second; |
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234 | if (polyData->getActor()) |
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235 | _renderer->RemoveActor(polyData->getActor()); |
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236 | delete polyData; |
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237 | |
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238 | _polyDatas.erase(itr); |
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239 | } while (doAll && ++itr != _polyDatas.end()); |
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240 | |
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241 | _needsRedraw = true; |
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242 | } |
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243 | |
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244 | /** |
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245 | * \brief Remove the specified DataSet and associated rendering objects |
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246 | * |
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247 | * The underlying DataSet and any associated Contour2D and PseudoColor |
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248 | * objects are deleted, freeing the memory used. |
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249 | */ |
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250 | void Renderer::deleteDataSet(const DataSetId& id) |
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251 | { |
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252 | DataSetHashmap::iterator itr; |
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253 | |
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254 | bool doAll = false; |
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255 | |
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256 | if (id.compare("all") == 0) { |
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257 | itr = _dataSets.begin(); |
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258 | doAll = true; |
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259 | } else { |
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260 | itr = _dataSets.find(id); |
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261 | } |
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262 | if (itr == _dataSets.end()) { |
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263 | ERROR("Unknown dataset %s", id.c_str()); |
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264 | return; |
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265 | } |
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266 | |
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267 | do { |
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268 | TRACE("Deleting dataset %s", itr->second->getName().c_str()); |
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269 | |
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270 | deletePseudoColor(itr->second->getName()); |
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271 | deleteContour2D(itr->second->getName()); |
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272 | deletePolyData(itr->second->getName()); |
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273 | |
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274 | TRACE("After deleting graphics objects"); |
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275 | |
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276 | delete itr->second; |
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277 | _dataSets.erase(itr); |
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278 | } while (doAll && ++itr != _dataSets.end()); |
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279 | |
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280 | // Update cumulative data range |
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281 | collectDataRanges(_cumulativeDataRange, _cumulativeRangeOnlyVisible); |
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282 | updateRanges(_useCumulativeRange); |
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283 | |
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284 | _needsRedraw = true; |
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285 | } |
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286 | |
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287 | /** |
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288 | * \brief Find the DataSet for the given DataSetId key |
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289 | * |
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290 | * \return A pointer to the DataSet, or NULL if not found |
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291 | */ |
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292 | DataSet *Renderer::getDataSet(const DataSetId& id) |
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293 | { |
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294 | DataSetHashmap::iterator itr = _dataSets.find(id); |
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295 | if (itr == _dataSets.end()) { |
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296 | TRACE("DataSet not found: %s", id.c_str()); |
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297 | return NULL; |
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298 | } else |
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299 | return itr->second; |
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300 | } |
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301 | |
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302 | /** |
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303 | * \brief (Re-)load the data for the specified DataSet key from a file |
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304 | */ |
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305 | bool Renderer::setDataFile(const DataSetId& id, const char *filename) |
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306 | { |
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307 | DataSet *ds = getDataSet(id); |
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308 | if (ds) { |
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309 | bool ret = ds->setDataFile(filename); |
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310 | collectDataRanges(_cumulativeDataRange, _cumulativeRangeOnlyVisible); |
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311 | updateRanges(_useCumulativeRange); |
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312 | _needsRedraw = true; |
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313 | return ret; |
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314 | } else |
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315 | return false; |
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316 | } |
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317 | |
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318 | /** |
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319 | * \brief (Re-)load the data for the specified DataSet key from a memory buffer |
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320 | */ |
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321 | bool Renderer::setData(const DataSetId& id, char *data, int nbytes) |
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322 | { |
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323 | DataSet *ds = getDataSet(id); |
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324 | if (ds) { |
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325 | bool ret = ds->setData(data, nbytes); |
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326 | collectDataRanges(_cumulativeDataRange, _cumulativeRangeOnlyVisible); |
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327 | updateRanges(_useCumulativeRange); |
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328 | _needsRedraw = true; |
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329 | return ret; |
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330 | } else |
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331 | return false; |
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332 | } |
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333 | |
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334 | /** |
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335 | * \brief Control whether the cumulative data range of datasets is used for |
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336 | * colormapping and contours |
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337 | */ |
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338 | void Renderer::setUseCumulativeDataRange(bool state, bool onlyVisible) |
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339 | { |
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340 | if (state != _useCumulativeRange) { |
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341 | _useCumulativeRange = state; |
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342 | _cumulativeRangeOnlyVisible = onlyVisible; |
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343 | collectDataRanges(_cumulativeDataRange, _cumulativeRangeOnlyVisible); |
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344 | updateRanges(_useCumulativeRange); |
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345 | _needsRedraw = true; |
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346 | } |
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347 | } |
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348 | |
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349 | void Renderer::resetAxes() |
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350 | { |
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351 | TRACE("Resetting axes"); |
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352 | if (_cubeAxesActor == NULL || |
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353 | _cubeAxesActor2D == NULL) { |
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354 | initAxes(); |
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355 | } |
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356 | if (_cameraMode == IMAGE) { |
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357 | if (_renderer->HasViewProp(_cubeAxesActor)) { |
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358 | TRACE("Removing 3D axes"); |
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359 | _renderer->RemoveActor(_cubeAxesActor); |
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360 | } |
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361 | if (!_renderer->HasViewProp(_cubeAxesActor2D)) { |
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362 | TRACE("Adding 2D axes"); |
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363 | _renderer->AddActor(_cubeAxesActor2D); |
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364 | } |
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365 | } else { |
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366 | if (_renderer->HasViewProp(_cubeAxesActor2D)) { |
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367 | TRACE("Removing 2D axes"); |
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368 | _renderer->RemoveActor(_cubeAxesActor2D); |
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369 | } |
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370 | if (!_renderer->HasViewProp(_cubeAxesActor)) { |
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371 | TRACE("Adding 3D axes"); |
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372 | _renderer->AddActor(_cubeAxesActor); |
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373 | } |
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374 | double bounds[6]; |
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375 | collectBounds(bounds, true); |
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376 | _cubeAxesActor->SetBounds(bounds); |
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377 | } |
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378 | } |
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379 | |
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380 | /** |
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381 | * \brief Set inital properties on the 2D Axes |
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382 | */ |
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383 | void Renderer::initAxes() |
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384 | { |
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385 | TRACE("Initializing axes"); |
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386 | if (_cubeAxesActor == NULL) |
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387 | _cubeAxesActor = vtkSmartPointer<vtkCubeAxesActor>::New(); |
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388 | _cubeAxesActor->SetCamera(_renderer->GetActiveCamera()); |
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389 | // Don't offset labels at origin |
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390 | _cubeAxesActor->SetCornerOffset(0); |
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391 | _cubeAxesActor->SetFlyModeToClosestTriad(); |
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392 | |
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393 | #ifdef USE_CUSTOM_AXES |
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394 | if (_cubeAxesActor2D == NULL) |
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395 | _cubeAxesActor2D = vtkSmartPointer<vtkRpCubeAxesActor2D>::New(); |
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396 | #else |
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397 | if (_cubeAxesActor2D == NULL) |
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398 | _cubeAxesActor2D = vtkSmartPointer<vtkCubeAxesActor2D>::New(); |
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399 | #endif |
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400 | |
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401 | _cubeAxesActor2D->SetCamera(_renderer->GetActiveCamera()); |
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402 | _cubeAxesActor2D->ZAxisVisibilityOff(); |
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403 | _cubeAxesActor2D->SetCornerOffset(0); |
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404 | _cubeAxesActor2D->SetFlyModeToClosestTriad(); |
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405 | |
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406 | _cubeAxesActor2D->ScalingOff(); |
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407 | //_cubeAxesActor2D->SetShowActualBounds(0); |
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408 | _cubeAxesActor2D->SetFontFactor(1.25); |
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409 | // Use "nice" range and number of ticks/labels |
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410 | _cubeAxesActor2D->GetXAxisActor2D()->AdjustLabelsOn(); |
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411 | _cubeAxesActor2D->GetYAxisActor2D()->AdjustLabelsOn(); |
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412 | |
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413 | #ifdef USE_CUSTOM_AXES |
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414 | _cubeAxesActor2D->SetAxisTitleTextProperty(NULL); |
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415 | _cubeAxesActor2D->SetAxisLabelTextProperty(NULL); |
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416 | //_cubeAxesActor2D->GetXAxisActor2D()->SizeFontRelativeToAxisOn(); |
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417 | _cubeAxesActor2D->GetXAxisActor2D()->GetTitleTextProperty()->BoldOn(); |
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418 | _cubeAxesActor2D->GetXAxisActor2D()->GetTitleTextProperty()->ItalicOff(); |
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419 | _cubeAxesActor2D->GetXAxisActor2D()->GetTitleTextProperty()->ShadowOn(); |
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420 | _cubeAxesActor2D->GetXAxisActor2D()->GetLabelTextProperty()->BoldOff(); |
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421 | _cubeAxesActor2D->GetXAxisActor2D()->GetLabelTextProperty()->ItalicOff(); |
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422 | _cubeAxesActor2D->GetXAxisActor2D()->GetLabelTextProperty()->ShadowOff(); |
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423 | |
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424 | //_cubeAxesActor2D->GetYAxisActor2D()->SizeFontRelativeToAxisOn(); |
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425 | _cubeAxesActor2D->GetYAxisActor2D()->GetTitleTextProperty()->BoldOn(); |
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426 | _cubeAxesActor2D->GetYAxisActor2D()->GetTitleTextProperty()->ItalicOff(); |
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427 | _cubeAxesActor2D->GetYAxisActor2D()->GetTitleTextProperty()->ShadowOn(); |
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428 | _cubeAxesActor2D->GetYAxisActor2D()->GetLabelTextProperty()->BoldOff(); |
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429 | _cubeAxesActor2D->GetYAxisActor2D()->GetLabelTextProperty()->ItalicOff(); |
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430 | _cubeAxesActor2D->GetYAxisActor2D()->GetLabelTextProperty()->ShadowOff(); |
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431 | #else |
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432 | _cubeAxesActor2D->GetAxisTitleTextProperty()->BoldOn(); |
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433 | _cubeAxesActor2D->GetAxisTitleTextProperty()->ItalicOff(); |
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434 | _cubeAxesActor2D->GetAxisTitleTextProperty()->ShadowOn(); |
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435 | _cubeAxesActor2D->GetAxisLabelTextProperty()->BoldOff(); |
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436 | _cubeAxesActor2D->GetAxisLabelTextProperty()->ItalicOff(); |
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437 | _cubeAxesActor2D->GetAxisLabelTextProperty()->ShadowOff(); |
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438 | #endif |
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439 | |
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440 | if (_cameraMode == IMAGE) { |
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441 | if (!_renderer->HasViewProp(_cubeAxesActor2D)) |
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442 | _renderer->AddActor(_cubeAxesActor2D); |
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443 | } else { |
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444 | if (!_renderer->HasViewProp(_cubeAxesActor)) |
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445 | _renderer->AddActor(_cubeAxesActor); |
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446 | } |
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447 | } |
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448 | |
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449 | /** |
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450 | * \brief Set color of axes, ticks, labels, titles |
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451 | */ |
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452 | void Renderer::setAxesColor(double color[3]) |
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453 | { |
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454 | if (_cubeAxesActor != NULL) { |
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455 | _cubeAxesActor->GetProperty()->SetColor(color); |
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456 | _needsRedraw = true; |
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457 | } |
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458 | if (_cubeAxesActor2D != NULL) { |
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459 | _cubeAxesActor2D->GetProperty()->SetColor(color); |
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460 | #ifdef USE_CUSTOM_AXES |
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461 | _cubeAxesActor2D->GetXAxisActor2D()->GetTitleTextProperty()->SetColor(color); |
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462 | _cubeAxesActor2D->GetXAxisActor2D()->GetLabelTextProperty()->SetColor(color); |
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463 | _cubeAxesActor2D->GetYAxisActor2D()->GetTitleTextProperty()->SetColor(color); |
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464 | _cubeAxesActor2D->GetYAxisActor2D()->GetLabelTextProperty()->SetColor(color); |
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465 | #else |
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466 | _cubeAxesActor2D->GetAxisTitleTextProperty()->SetColor(color); |
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467 | _cubeAxesActor2D->GetAxisLabelTextProperty()->SetColor(color); |
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468 | #endif |
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469 | _needsRedraw = true; |
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470 | } |
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471 | } |
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472 | |
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473 | /** |
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474 | * \brief Turn on/off rendering of all axes gridlines |
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475 | */ |
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476 | void Renderer::setAxesGridVisibility(bool state) |
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477 | { |
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478 | if (_cubeAxesActor != NULL) { |
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479 | _cubeAxesActor->SetDrawXGridlines((state ? 1 : 0)); |
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480 | _cubeAxesActor->SetDrawYGridlines((state ? 1 : 0)); |
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481 | _cubeAxesActor->SetDrawZGridlines((state ? 1 : 0)); |
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482 | _needsRedraw = true; |
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483 | } |
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484 | } |
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485 | |
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486 | /** |
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487 | * \brief Turn on/off rendering of single axis gridlines |
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488 | */ |
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489 | void Renderer::setAxisGridVisibility(Axis axis, bool state) |
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490 | { |
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491 | if (_cubeAxesActor != NULL) { |
---|
492 | if (axis == X_AXIS) { |
---|
493 | _cubeAxesActor->SetDrawXGridlines((state ? 1 : 0)); |
---|
494 | } else if (axis == Y_AXIS) { |
---|
495 | _cubeAxesActor->SetDrawYGridlines((state ? 1 : 0)); |
---|
496 | } else if (axis == Z_AXIS) { |
---|
497 | _cubeAxesActor->SetDrawZGridlines((state ? 1 : 0)); |
---|
498 | } |
---|
499 | _needsRedraw = true; |
---|
500 | } |
---|
501 | } |
---|
502 | |
---|
503 | /** |
---|
504 | * \brief Turn on/off rendering of all axes |
---|
505 | */ |
---|
506 | void Renderer::setAxesVisibility(bool state) |
---|
507 | { |
---|
508 | if (_cubeAxesActor != NULL) { |
---|
509 | _cubeAxesActor->SetVisibility((state ? 1 : 0)); |
---|
510 | _needsRedraw = true; |
---|
511 | } |
---|
512 | if (_cubeAxesActor2D != NULL) { |
---|
513 | _cubeAxesActor2D->SetVisibility((state ? 1 : 0)); |
---|
514 | _needsRedraw = true; |
---|
515 | } |
---|
516 | setAxisVisibility(X_AXIS, state); |
---|
517 | setAxisVisibility(Y_AXIS, state); |
---|
518 | setAxisVisibility(Z_AXIS, state); |
---|
519 | } |
---|
520 | |
---|
521 | /** |
---|
522 | * \brief Turn on/off rendering of the specified axis |
---|
523 | */ |
---|
524 | void Renderer::setAxisVisibility(Axis axis, bool state) |
---|
525 | { |
---|
526 | if (_cubeAxesActor != NULL) { |
---|
527 | if (axis == X_AXIS) { |
---|
528 | _cubeAxesActor->SetXAxisVisibility((state ? 1 : 0)); |
---|
529 | } else if (axis == Y_AXIS) { |
---|
530 | _cubeAxesActor->SetYAxisVisibility((state ? 1 : 0)); |
---|
531 | } else if (axis == Z_AXIS) { |
---|
532 | _cubeAxesActor->SetZAxisVisibility((state ? 1 : 0)); |
---|
533 | } |
---|
534 | _needsRedraw = true; |
---|
535 | } |
---|
536 | if (_cubeAxesActor2D != NULL) { |
---|
537 | if (axis == X_AXIS) { |
---|
538 | _cubeAxesActor2D->SetXAxisVisibility((state ? 1 : 0)); |
---|
539 | } else if (axis == Y_AXIS) { |
---|
540 | _cubeAxesActor2D->SetYAxisVisibility((state ? 1 : 0)); |
---|
541 | } |
---|
542 | _needsRedraw = true; |
---|
543 | } |
---|
544 | } |
---|
545 | |
---|
546 | /** |
---|
547 | * \brief Set title of the specified axis |
---|
548 | */ |
---|
549 | void Renderer::setAxisTitle(Axis axis, const char *title) |
---|
550 | { |
---|
551 | if (_cubeAxesActor != NULL) { |
---|
552 | if (axis == X_AXIS) { |
---|
553 | _cubeAxesActor->SetXTitle(title); |
---|
554 | } else if (axis == Y_AXIS) { |
---|
555 | _cubeAxesActor->SetYTitle(title); |
---|
556 | } else if (axis == Z_AXIS) { |
---|
557 | _cubeAxesActor->SetZTitle(title); |
---|
558 | } |
---|
559 | _needsRedraw = true; |
---|
560 | } |
---|
561 | if (_cubeAxesActor2D != NULL) { |
---|
562 | if (axis == X_AXIS) { |
---|
563 | _cubeAxesActor2D->SetXLabel(title); |
---|
564 | } else if (axis == Y_AXIS) { |
---|
565 | _cubeAxesActor2D->SetYLabel(title); |
---|
566 | } |
---|
567 | _needsRedraw = true; |
---|
568 | } |
---|
569 | } |
---|
570 | |
---|
571 | /** |
---|
572 | * \brief Set units of the specified axis |
---|
573 | */ |
---|
574 | void Renderer::setAxisUnits(Axis axis, const char *units) |
---|
575 | { |
---|
576 | if (_cubeAxesActor != NULL) { |
---|
577 | if (axis == X_AXIS) { |
---|
578 | _cubeAxesActor->SetXUnits(units); |
---|
579 | } else if (axis == Y_AXIS) { |
---|
580 | _cubeAxesActor->SetYUnits(units); |
---|
581 | } else if (axis == Z_AXIS) { |
---|
582 | _cubeAxesActor->SetZUnits(units); |
---|
583 | } |
---|
584 | _needsRedraw = true; |
---|
585 | } |
---|
586 | #ifdef notdef |
---|
587 | if (_cubeAxesActor2D != NULL) { |
---|
588 | if (axis == X_AXIS) { |
---|
589 | _cubeAxesActor2D->SetXUnits(units); |
---|
590 | } else if (axis == Y_AXIS) { |
---|
591 | _cubeAxesActor2D->SetYUnits(units); |
---|
592 | } |
---|
593 | _needsRedraw = true; |
---|
594 | } |
---|
595 | #endif |
---|
596 | } |
---|
597 | |
---|
598 | /** |
---|
599 | * \brief Add a color map for use in the Renderer |
---|
600 | */ |
---|
601 | void Renderer::addColorMap(const ColorMapId& id, ColorMap *colorMap) |
---|
602 | { |
---|
603 | if (colorMap != NULL) { |
---|
604 | colorMap->build(); |
---|
605 | if (getColorMap(id) != NULL) { |
---|
606 | WARN("Replacing existing colormap %s", id.c_str()); |
---|
607 | deleteColorMap(id); |
---|
608 | } |
---|
609 | _colorMaps[id] = colorMap; |
---|
610 | } else { |
---|
611 | ERROR("NULL ColorMap"); |
---|
612 | } |
---|
613 | } |
---|
614 | |
---|
615 | /** |
---|
616 | * \brief Return the ColorMap associated with the colormap key given |
---|
617 | */ |
---|
618 | ColorMap *Renderer::getColorMap(const ColorMapId& id) |
---|
619 | { |
---|
620 | ColorMapHashmap::iterator itr = _colorMaps.find(id); |
---|
621 | |
---|
622 | if (itr == _colorMaps.end()) |
---|
623 | return NULL; |
---|
624 | else |
---|
625 | return itr->second; |
---|
626 | } |
---|
627 | |
---|
628 | /** |
---|
629 | * \brief Remove the colormap associated with the key given |
---|
630 | * |
---|
631 | * The underlying vtkLookupTable will be deleted if it is not referenced |
---|
632 | * by any other objects |
---|
633 | */ |
---|
634 | void Renderer::deleteColorMap(const ColorMapId& id) |
---|
635 | { |
---|
636 | ColorMapHashmap::iterator itr; |
---|
637 | |
---|
638 | bool doAll = false; |
---|
639 | |
---|
640 | if (id.compare("all") == 0) { |
---|
641 | itr = _colorMaps.begin(); |
---|
642 | doAll = true; |
---|
643 | } else { |
---|
644 | itr = _colorMaps.find(id); |
---|
645 | } |
---|
646 | |
---|
647 | if (itr == _colorMaps.end()) { |
---|
648 | ERROR("Unknown ColorMap %s", id.c_str()); |
---|
649 | return; |
---|
650 | } |
---|
651 | |
---|
652 | do { |
---|
653 | TRACE("Deleting ColorMap %s", itr->second->getName().c_str()); |
---|
654 | |
---|
655 | // TODO: Check if color map is used in PseudoColors? |
---|
656 | delete itr->second; |
---|
657 | _colorMaps.erase(itr); |
---|
658 | } while (doAll && ++itr != _colorMaps.end()); |
---|
659 | } |
---|
660 | |
---|
661 | /** |
---|
662 | * \brief Render a labelled legend image for the given colormap |
---|
663 | * |
---|
664 | * \return The image is rendered into the supplied array, false is |
---|
665 | * returned if the color map is not found |
---|
666 | */ |
---|
667 | bool Renderer::renderColorMap(const ColorMapId& id, |
---|
668 | const DataSetId& dataSetID, |
---|
669 | const char *title, |
---|
670 | int width, int height, |
---|
671 | vtkUnsignedCharArray *imgData) |
---|
672 | { |
---|
673 | ColorMap *colorMap = getColorMap(id); |
---|
674 | if (colorMap == NULL) |
---|
675 | return false; |
---|
676 | |
---|
677 | if (_legendRenderWindow == NULL) { |
---|
678 | _legendRenderWindow = vtkSmartPointer<vtkRenderWindow>::New(); |
---|
679 | _legendRenderWindow->DoubleBufferOff(); |
---|
680 | _legendRenderWindow->OffScreenRenderingOn(); |
---|
681 | } |
---|
682 | |
---|
683 | _legendRenderWindow->SetSize(width, height); |
---|
684 | |
---|
685 | if (_legendRenderer == NULL) { |
---|
686 | _legendRenderer = vtkSmartPointer<vtkRenderer>::New(); |
---|
687 | _legendRenderWindow->AddRenderer(_legendRenderer); |
---|
688 | } |
---|
689 | _legendRenderer->SetBackground(_bgColor[0], _bgColor[1], _bgColor[2]); |
---|
690 | |
---|
691 | if (_scalarBarActor == NULL) { |
---|
692 | _scalarBarActor = vtkSmartPointer<vtkScalarBarActor>::New(); |
---|
693 | _scalarBarActor->UseOpacityOn(); |
---|
694 | _legendRenderer->AddActor(_scalarBarActor); |
---|
695 | } |
---|
696 | |
---|
697 | vtkSmartPointer<vtkLookupTable> lut = colorMap->getLookupTable(); |
---|
698 | if (dataSetID.compare("all") == 0) { |
---|
699 | lut->SetRange(_cumulativeDataRange); |
---|
700 | } else { |
---|
701 | DataSet *dataSet = getDataSet(dataSetID); |
---|
702 | if (dataSet == NULL) { |
---|
703 | lut->SetRange(_cumulativeDataRange); |
---|
704 | } else { |
---|
705 | double range[2]; |
---|
706 | dataSet->getDataRange(range); |
---|
707 | lut->SetRange(range); |
---|
708 | } |
---|
709 | } |
---|
710 | _scalarBarActor->SetLookupTable(lut); |
---|
711 | |
---|
712 | // Set viewport-relative width/height/pos |
---|
713 | if (width > height) { |
---|
714 | _scalarBarActor->SetOrientationToHorizontal(); |
---|
715 | _scalarBarActor->SetHeight(0.8); |
---|
716 | _scalarBarActor->SetWidth(0.85); |
---|
717 | _scalarBarActor->SetPosition(.075, .1); |
---|
718 | } else { |
---|
719 | _scalarBarActor->SetOrientationToVertical(); |
---|
720 | _scalarBarActor->SetHeight(0.9); |
---|
721 | _scalarBarActor->SetWidth(0.8); |
---|
722 | _scalarBarActor->SetPosition(.1, .05); |
---|
723 | } |
---|
724 | _scalarBarActor->SetTitle(title); |
---|
725 | _scalarBarActor->GetTitleTextProperty()->ItalicOff(); |
---|
726 | _scalarBarActor->GetLabelTextProperty()->BoldOff(); |
---|
727 | _scalarBarActor->GetLabelTextProperty()->ItalicOff(); |
---|
728 | _scalarBarActor->GetLabelTextProperty()->ShadowOff(); |
---|
729 | |
---|
730 | _legendRenderWindow->Render(); |
---|
731 | |
---|
732 | _legendRenderWindow->GetPixelData(0, 0, width-1, height-1, 1, imgData); |
---|
733 | return true; |
---|
734 | } |
---|
735 | |
---|
736 | /** |
---|
737 | * \brief Create a new PseudoColor rendering for the specified DataSet |
---|
738 | */ |
---|
739 | void Renderer::addPseudoColor(const DataSetId& id) |
---|
740 | { |
---|
741 | DataSetHashmap::iterator itr; |
---|
742 | |
---|
743 | bool doAll = false; |
---|
744 | |
---|
745 | if (id.compare("all") == 0) { |
---|
746 | itr = _dataSets.begin(); |
---|
747 | } else { |
---|
748 | itr = _dataSets.find(id); |
---|
749 | } |
---|
750 | if (itr == _dataSets.end()) { |
---|
751 | ERROR("Unknown dataset %s", id.c_str()); |
---|
752 | return; |
---|
753 | } |
---|
754 | |
---|
755 | do { |
---|
756 | DataSet *ds = itr->second; |
---|
757 | const DataSetId& dsID = ds->getName(); |
---|
758 | |
---|
759 | if (getPseudoColor(dsID)) { |
---|
760 | WARN("Replacing existing pseudocolor %s", dsID.c_str()); |
---|
761 | deletePseudoColor(dsID); |
---|
762 | } |
---|
763 | PseudoColor *pc = new PseudoColor(); |
---|
764 | _pseudoColors[dsID] = pc; |
---|
765 | |
---|
766 | pc->setDataSet(ds); |
---|
767 | |
---|
768 | // Use the default color map |
---|
769 | vtkSmartPointer<vtkLookupTable> lut = vtkSmartPointer<vtkLookupTable>::New(); |
---|
770 | ColorMap *cmap = getColorMap("default"); |
---|
771 | lut->DeepCopy(cmap->getLookupTable()); |
---|
772 | if (_useCumulativeRange) { |
---|
773 | lut->SetRange(_cumulativeDataRange); |
---|
774 | } else { |
---|
775 | double range[2]; |
---|
776 | ds->getDataRange(range); |
---|
777 | lut->SetRange(range); |
---|
778 | } |
---|
779 | |
---|
780 | pc->setLookupTable(lut); |
---|
781 | |
---|
782 | _renderer->AddActor(pc->getActor()); |
---|
783 | } while (doAll && ++itr != _dataSets.end()); |
---|
784 | |
---|
785 | initCamera(); |
---|
786 | _needsRedraw = true; |
---|
787 | } |
---|
788 | |
---|
789 | /** |
---|
790 | * \brief Get the PseudoColor associated with the specified DataSet |
---|
791 | */ |
---|
792 | PseudoColor *Renderer::getPseudoColor(const DataSetId& id) |
---|
793 | { |
---|
794 | PseudoColorHashmap::iterator itr = _pseudoColors.find(id); |
---|
795 | |
---|
796 | if (itr == _pseudoColors.end()) { |
---|
797 | TRACE("PseudoColor not found: %s", id.c_str()); |
---|
798 | return NULL; |
---|
799 | } else |
---|
800 | return itr->second; |
---|
801 | } |
---|
802 | |
---|
803 | /** |
---|
804 | * \brief Associate an existing named color map with a DataSet |
---|
805 | */ |
---|
806 | void Renderer::setPseudoColorColorMap(const DataSetId& id, const ColorMapId& colorMapId) |
---|
807 | { |
---|
808 | PseudoColorHashmap::iterator itr; |
---|
809 | |
---|
810 | bool doAll = false; |
---|
811 | |
---|
812 | if (id.compare("all") == 0) { |
---|
813 | itr = _pseudoColors.begin(); |
---|
814 | doAll = true; |
---|
815 | } else { |
---|
816 | itr = _pseudoColors.find(id); |
---|
817 | } |
---|
818 | |
---|
819 | if (itr == _pseudoColors.end()) { |
---|
820 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
821 | return; |
---|
822 | } |
---|
823 | |
---|
824 | ColorMap *cmap = getColorMap(colorMapId); |
---|
825 | if (cmap == NULL) { |
---|
826 | ERROR("Unknown colormap: %s", colorMapId.c_str()); |
---|
827 | return; |
---|
828 | } |
---|
829 | |
---|
830 | do { |
---|
831 | TRACE("Set color map: %s for dataset %s", colorMapId.c_str(), |
---|
832 | itr->second->getDataSet()->getName().c_str()); |
---|
833 | |
---|
834 | // Make a copy of the generic colormap lookup table, so |
---|
835 | // data range can be set in the copy table to match the |
---|
836 | // dataset being plotted |
---|
837 | vtkSmartPointer<vtkLookupTable> lut = vtkSmartPointer<vtkLookupTable>::New(); |
---|
838 | lut->DeepCopy(cmap->getLookupTable()); |
---|
839 | |
---|
840 | if (_useCumulativeRange) { |
---|
841 | lut->SetRange(_cumulativeDataRange); |
---|
842 | } else { |
---|
843 | if (itr->second->getDataSet() != NULL) { |
---|
844 | double range[2]; |
---|
845 | itr->second->getDataSet()->getDataRange(range); |
---|
846 | lut->SetRange(range); |
---|
847 | } |
---|
848 | } |
---|
849 | |
---|
850 | itr->second->setLookupTable(lut); |
---|
851 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
852 | |
---|
853 | _needsRedraw = true; |
---|
854 | } |
---|
855 | |
---|
856 | /** |
---|
857 | * \brief Get the color map (vtkLookupTable) for the given DataSet |
---|
858 | * |
---|
859 | * \return The associated lookup table or NULL if not found |
---|
860 | */ |
---|
861 | vtkLookupTable *Renderer::getPseudoColorColorMap(const DataSetId& id) |
---|
862 | { |
---|
863 | PseudoColor *pc = getPseudoColor(id); |
---|
864 | if (pc) |
---|
865 | return pc->getLookupTable(); |
---|
866 | else |
---|
867 | return NULL; |
---|
868 | } |
---|
869 | |
---|
870 | /** |
---|
871 | * \brief Set opacity of the PseudoColor for the given DataSet |
---|
872 | */ |
---|
873 | void Renderer::setPseudoColorOpacity(const DataSetId& id, double opacity) |
---|
874 | { |
---|
875 | PseudoColorHashmap::iterator itr; |
---|
876 | |
---|
877 | bool doAll = false; |
---|
878 | |
---|
879 | if (id.compare("all") == 0) { |
---|
880 | itr = _pseudoColors.begin(); |
---|
881 | doAll = true; |
---|
882 | } else { |
---|
883 | itr = _pseudoColors.find(id); |
---|
884 | } |
---|
885 | |
---|
886 | if (itr == _pseudoColors.end()) { |
---|
887 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
888 | return; |
---|
889 | } |
---|
890 | |
---|
891 | do { |
---|
892 | itr->second->setOpacity(opacity); |
---|
893 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
894 | |
---|
895 | _needsRedraw = true; |
---|
896 | } |
---|
897 | |
---|
898 | /** |
---|
899 | * \brief Turn on/off rendering of the PseudoColor mapper for the given DataSet |
---|
900 | */ |
---|
901 | void Renderer::setPseudoColorVisibility(const DataSetId& id, bool state) |
---|
902 | { |
---|
903 | PseudoColorHashmap::iterator itr; |
---|
904 | |
---|
905 | bool doAll = false; |
---|
906 | |
---|
907 | if (id.compare("all") == 0) { |
---|
908 | itr = _pseudoColors.begin(); |
---|
909 | doAll = true; |
---|
910 | } else { |
---|
911 | itr = _pseudoColors.find(id); |
---|
912 | } |
---|
913 | |
---|
914 | if (itr == _pseudoColors.end()) { |
---|
915 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
916 | return; |
---|
917 | } |
---|
918 | |
---|
919 | do { |
---|
920 | itr->second->setVisibility(state); |
---|
921 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
922 | |
---|
923 | _needsRedraw = true; |
---|
924 | } |
---|
925 | |
---|
926 | /** |
---|
927 | * \brief Set the visibility of polygon edges for the specified DataSet |
---|
928 | */ |
---|
929 | void Renderer::setPseudoColorEdgeVisibility(const DataSetId& id, bool state) |
---|
930 | { |
---|
931 | PseudoColorHashmap::iterator itr; |
---|
932 | |
---|
933 | bool doAll = false; |
---|
934 | |
---|
935 | if (id.compare("all") == 0) { |
---|
936 | itr = _pseudoColors.begin(); |
---|
937 | doAll = true; |
---|
938 | } else { |
---|
939 | itr = _pseudoColors.find(id); |
---|
940 | } |
---|
941 | |
---|
942 | if (itr == _pseudoColors.end()) { |
---|
943 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
944 | return; |
---|
945 | } |
---|
946 | |
---|
947 | do { |
---|
948 | itr->second->setEdgeVisibility(state); |
---|
949 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
950 | |
---|
951 | _needsRedraw = true; |
---|
952 | } |
---|
953 | |
---|
954 | /** |
---|
955 | * \brief Set the RGB polygon edge color for the specified DataSet |
---|
956 | */ |
---|
957 | void Renderer::setPseudoColorEdgeColor(const DataSetId& id, float color[3]) |
---|
958 | { |
---|
959 | PseudoColorHashmap::iterator itr; |
---|
960 | |
---|
961 | bool doAll = false; |
---|
962 | |
---|
963 | if (id.compare("all") == 0) { |
---|
964 | itr = _pseudoColors.begin(); |
---|
965 | doAll = true; |
---|
966 | } else { |
---|
967 | itr = _pseudoColors.find(id); |
---|
968 | } |
---|
969 | |
---|
970 | if (itr == _pseudoColors.end()) { |
---|
971 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
972 | return; |
---|
973 | } |
---|
974 | |
---|
975 | do { |
---|
976 | itr->second->setEdgeColor(color); |
---|
977 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
978 | |
---|
979 | _needsRedraw = true; |
---|
980 | } |
---|
981 | |
---|
982 | /** |
---|
983 | * \brief Set the polygon edge width for the specified DataSet (may be a no-op) |
---|
984 | * |
---|
985 | * If the OpenGL implementation/hardware does not support wide lines, |
---|
986 | * this function may not have an effect. |
---|
987 | */ |
---|
988 | void Renderer::setPseudoColorEdgeWidth(const DataSetId& id, float edgeWidth) |
---|
989 | { |
---|
990 | PseudoColorHashmap::iterator itr; |
---|
991 | |
---|
992 | bool doAll = false; |
---|
993 | |
---|
994 | if (id.compare("all") == 0) { |
---|
995 | itr = _pseudoColors.begin(); |
---|
996 | doAll = true; |
---|
997 | } else { |
---|
998 | itr = _pseudoColors.find(id); |
---|
999 | } |
---|
1000 | |
---|
1001 | if (itr == _pseudoColors.end()) { |
---|
1002 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
1003 | return; |
---|
1004 | } |
---|
1005 | |
---|
1006 | do { |
---|
1007 | itr->second->setEdgeWidth(edgeWidth); |
---|
1008 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
1009 | |
---|
1010 | _needsRedraw = true; |
---|
1011 | } |
---|
1012 | |
---|
1013 | /** |
---|
1014 | * \brief Turn mesh lighting on/off for the specified DataSet |
---|
1015 | */ |
---|
1016 | void Renderer::setPseudoColorLighting(const DataSetId& id, bool state) |
---|
1017 | { |
---|
1018 | PseudoColorHashmap::iterator itr; |
---|
1019 | |
---|
1020 | bool doAll = false; |
---|
1021 | |
---|
1022 | if (id.compare("all") == 0) { |
---|
1023 | itr = _pseudoColors.begin(); |
---|
1024 | doAll = true; |
---|
1025 | } else { |
---|
1026 | itr = _pseudoColors.find(id); |
---|
1027 | } |
---|
1028 | |
---|
1029 | if (itr == _pseudoColors.end()) { |
---|
1030 | ERROR("PseudoColor not found: %s", id.c_str()); |
---|
1031 | return; |
---|
1032 | } |
---|
1033 | |
---|
1034 | do { |
---|
1035 | itr->second->setLighting(state); |
---|
1036 | } while (doAll && ++itr != _pseudoColors.end()); |
---|
1037 | |
---|
1038 | _needsRedraw = true; |
---|
1039 | } |
---|
1040 | |
---|
1041 | /** |
---|
1042 | * \brief Create a new Contour2D and associate it with the named DataSet |
---|
1043 | */ |
---|
1044 | void Renderer::addContour2D(const DataSetId& id) |
---|
1045 | { |
---|
1046 | DataSetHashmap::iterator itr; |
---|
1047 | |
---|
1048 | bool doAll = false; |
---|
1049 | |
---|
1050 | if (id.compare("all") == 0) { |
---|
1051 | itr = _dataSets.begin(); |
---|
1052 | } else { |
---|
1053 | itr = _dataSets.find(id); |
---|
1054 | } |
---|
1055 | if (itr == _dataSets.end()) { |
---|
1056 | ERROR("Unknown dataset %s", id.c_str()); |
---|
1057 | return; |
---|
1058 | } |
---|
1059 | |
---|
1060 | do { |
---|
1061 | DataSet *ds = itr->second; |
---|
1062 | const DataSetId& dsID = ds->getName(); |
---|
1063 | |
---|
1064 | if (getContour2D(dsID)) { |
---|
1065 | WARN("Replacing existing contour2d %s", dsID.c_str()); |
---|
1066 | deleteContour2D(dsID); |
---|
1067 | } |
---|
1068 | |
---|
1069 | Contour2D *contour = new Contour2D(); |
---|
1070 | _contours[dsID] = contour; |
---|
1071 | |
---|
1072 | contour->setDataSet(ds); |
---|
1073 | |
---|
1074 | _renderer->AddActor(contour->getActor()); |
---|
1075 | } while (doAll && ++itr != _dataSets.end()); |
---|
1076 | |
---|
1077 | initCamera(); |
---|
1078 | _needsRedraw = true; |
---|
1079 | } |
---|
1080 | |
---|
1081 | /** |
---|
1082 | * \brief Get the Contour2D associated with a named DataSet |
---|
1083 | */ |
---|
1084 | Contour2D *Renderer::getContour2D(const DataSetId& id) |
---|
1085 | { |
---|
1086 | Contour2DHashmap::iterator itr = _contours.find(id); |
---|
1087 | |
---|
1088 | if (itr == _contours.end()) { |
---|
1089 | TRACE("Contour2D not found: %s", id.c_str()); |
---|
1090 | return NULL; |
---|
1091 | } else |
---|
1092 | return itr->second; |
---|
1093 | } |
---|
1094 | |
---|
1095 | /** |
---|
1096 | * \brief Set the number of equally spaced contour isolines for the given DataSet |
---|
1097 | */ |
---|
1098 | void Renderer::setContours(const DataSetId& id, int numContours) |
---|
1099 | { |
---|
1100 | Contour2DHashmap::iterator itr; |
---|
1101 | |
---|
1102 | bool doAll = false; |
---|
1103 | |
---|
1104 | if (id.compare("all") == 0) { |
---|
1105 | itr = _contours.begin(); |
---|
1106 | doAll = true; |
---|
1107 | } else { |
---|
1108 | itr = _contours.find(id); |
---|
1109 | } |
---|
1110 | if (itr == _contours.end()) { |
---|
1111 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1112 | return; |
---|
1113 | } |
---|
1114 | |
---|
1115 | do { |
---|
1116 | if (_useCumulativeRange) { |
---|
1117 | itr->second->setContours(numContours, _cumulativeDataRange); |
---|
1118 | } else { |
---|
1119 | itr->second->setContours(numContours); |
---|
1120 | } |
---|
1121 | } while (doAll && ++itr != _contours.end()); |
---|
1122 | |
---|
1123 | _needsRedraw = true; |
---|
1124 | } |
---|
1125 | |
---|
1126 | /** |
---|
1127 | * \brief Set a list of isovalues for the given DataSet |
---|
1128 | */ |
---|
1129 | void Renderer::setContourList(const DataSetId& id, const std::vector<double>& contours) |
---|
1130 | { |
---|
1131 | Contour2DHashmap::iterator itr; |
---|
1132 | |
---|
1133 | bool doAll = false; |
---|
1134 | |
---|
1135 | if (id.compare("all") == 0) { |
---|
1136 | itr = _contours.begin(); |
---|
1137 | doAll = true; |
---|
1138 | } else { |
---|
1139 | itr = _contours.find(id); |
---|
1140 | } |
---|
1141 | if (itr == _contours.end()) { |
---|
1142 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1143 | return; |
---|
1144 | } |
---|
1145 | |
---|
1146 | do { |
---|
1147 | itr->second->setContourList(contours); |
---|
1148 | } while (doAll && ++itr != _contours.end()); |
---|
1149 | |
---|
1150 | _needsRedraw = true; |
---|
1151 | } |
---|
1152 | |
---|
1153 | /** |
---|
1154 | * \brief Set opacity of contour lines for the given DataSet |
---|
1155 | */ |
---|
1156 | void Renderer::setContourOpacity(const DataSetId& id, double opacity) |
---|
1157 | { |
---|
1158 | Contour2DHashmap::iterator itr; |
---|
1159 | |
---|
1160 | bool doAll = false; |
---|
1161 | |
---|
1162 | if (id.compare("all") == 0) { |
---|
1163 | itr = _contours.begin(); |
---|
1164 | doAll = true; |
---|
1165 | } else { |
---|
1166 | itr = _contours.find(id); |
---|
1167 | } |
---|
1168 | if (itr == _contours.end()) { |
---|
1169 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1170 | return; |
---|
1171 | } |
---|
1172 | |
---|
1173 | do { |
---|
1174 | itr->second->setOpacity(opacity); |
---|
1175 | } while (doAll && ++itr != _contours.end()); |
---|
1176 | |
---|
1177 | _needsRedraw = true; |
---|
1178 | } |
---|
1179 | |
---|
1180 | /** |
---|
1181 | * \brief Turn on/off rendering contour lines for the given DataSet |
---|
1182 | */ |
---|
1183 | void Renderer::setContourVisibility(const DataSetId& id, bool state) |
---|
1184 | { |
---|
1185 | Contour2DHashmap::iterator itr; |
---|
1186 | |
---|
1187 | bool doAll = false; |
---|
1188 | |
---|
1189 | if (id.compare("all") == 0) { |
---|
1190 | itr = _contours.begin(); |
---|
1191 | doAll = true; |
---|
1192 | } else { |
---|
1193 | itr = _contours.find(id); |
---|
1194 | } |
---|
1195 | if (itr == _contours.end()) { |
---|
1196 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1197 | return; |
---|
1198 | } |
---|
1199 | |
---|
1200 | do { |
---|
1201 | itr->second->setVisibility(state); |
---|
1202 | } while (doAll && ++itr != _contours.end()); |
---|
1203 | |
---|
1204 | _needsRedraw = true; |
---|
1205 | } |
---|
1206 | |
---|
1207 | /** |
---|
1208 | * \brief Set the RGB isoline color for the specified DataSet |
---|
1209 | */ |
---|
1210 | void Renderer::setContourEdgeColor(const DataSetId& id, float color[3]) |
---|
1211 | { |
---|
1212 | Contour2DHashmap::iterator itr; |
---|
1213 | |
---|
1214 | bool doAll = false; |
---|
1215 | |
---|
1216 | if (id.compare("all") == 0) { |
---|
1217 | itr = _contours.begin(); |
---|
1218 | doAll = true; |
---|
1219 | } else { |
---|
1220 | itr = _contours.find(id); |
---|
1221 | } |
---|
1222 | if (itr == _contours.end()) { |
---|
1223 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1224 | return; |
---|
1225 | } |
---|
1226 | |
---|
1227 | do { |
---|
1228 | itr->second->setEdgeColor(color); |
---|
1229 | } while (doAll && ++itr != _contours.end()); |
---|
1230 | |
---|
1231 | _needsRedraw = true; |
---|
1232 | } |
---|
1233 | |
---|
1234 | /** |
---|
1235 | * \brief Set the isoline width for the specified DataSet (may be a no-op) |
---|
1236 | * |
---|
1237 | * If the OpenGL implementation/hardware does not support wide lines, |
---|
1238 | * this function may not have an effect. |
---|
1239 | */ |
---|
1240 | void Renderer::setContourEdgeWidth(const DataSetId& id, float edgeWidth) |
---|
1241 | { |
---|
1242 | Contour2DHashmap::iterator itr; |
---|
1243 | |
---|
1244 | bool doAll = false; |
---|
1245 | |
---|
1246 | if (id.compare("all") == 0) { |
---|
1247 | itr = _contours.begin(); |
---|
1248 | doAll = true; |
---|
1249 | } else { |
---|
1250 | itr = _contours.find(id); |
---|
1251 | } |
---|
1252 | if (itr == _contours.end()) { |
---|
1253 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1254 | return; |
---|
1255 | } |
---|
1256 | |
---|
1257 | do { |
---|
1258 | itr->second->setEdgeWidth(edgeWidth); |
---|
1259 | } while (doAll && ++itr != _contours.end()); |
---|
1260 | |
---|
1261 | _needsRedraw = true; |
---|
1262 | } |
---|
1263 | |
---|
1264 | /** |
---|
1265 | * \brief Turn contour lighting on/off for the specified DataSet |
---|
1266 | */ |
---|
1267 | void Renderer::setContourLighting(const DataSetId& id, bool state) |
---|
1268 | { |
---|
1269 | Contour2DHashmap::iterator itr; |
---|
1270 | |
---|
1271 | bool doAll = false; |
---|
1272 | |
---|
1273 | if (id.compare("all") == 0) { |
---|
1274 | itr = _contours.begin(); |
---|
1275 | doAll = true; |
---|
1276 | } else { |
---|
1277 | itr = _contours.find(id); |
---|
1278 | } |
---|
1279 | if (itr == _contours.end()) { |
---|
1280 | ERROR("Contour2D not found: %s", id.c_str()); |
---|
1281 | return; |
---|
1282 | } |
---|
1283 | |
---|
1284 | do { |
---|
1285 | itr->second->setLighting(state); |
---|
1286 | } while (doAll && ++itr != _contours.end()); |
---|
1287 | _needsRedraw = true; |
---|
1288 | } |
---|
1289 | |
---|
1290 | /** |
---|
1291 | * \brief Create a new PolyData and associate it with the named DataSet |
---|
1292 | */ |
---|
1293 | void Renderer::addPolyData(const DataSetId& id) |
---|
1294 | { |
---|
1295 | DataSetHashmap::iterator itr; |
---|
1296 | |
---|
1297 | bool doAll = false; |
---|
1298 | |
---|
1299 | if (id.compare("all") == 0) { |
---|
1300 | itr = _dataSets.begin(); |
---|
1301 | } else { |
---|
1302 | itr = _dataSets.find(id); |
---|
1303 | } |
---|
1304 | if (itr == _dataSets.end()) { |
---|
1305 | ERROR("Unknown dataset %s", id.c_str()); |
---|
1306 | return; |
---|
1307 | } |
---|
1308 | |
---|
1309 | do { |
---|
1310 | DataSet *ds = itr->second; |
---|
1311 | const DataSetId& dsID = ds->getName(); |
---|
1312 | |
---|
1313 | if (getPolyData(dsID)) { |
---|
1314 | WARN("Replacing existing polydata %s", dsID.c_str()); |
---|
1315 | deletePolyData(dsID); |
---|
1316 | } |
---|
1317 | |
---|
1318 | PolyData *polyData = new PolyData(); |
---|
1319 | _polyDatas[dsID] = polyData; |
---|
1320 | |
---|
1321 | polyData->setDataSet(ds); |
---|
1322 | |
---|
1323 | _renderer->AddActor(polyData->getActor()); |
---|
1324 | } while (doAll && ++itr != _dataSets.end()); |
---|
1325 | |
---|
1326 | if (_cameraMode == IMAGE) |
---|
1327 | setCameraMode(PERSPECTIVE); |
---|
1328 | initCamera(); |
---|
1329 | _needsRedraw = true; |
---|
1330 | } |
---|
1331 | |
---|
1332 | /** |
---|
1333 | * \brief Get the PolyData associated with a named DataSet |
---|
1334 | */ |
---|
1335 | PolyData *Renderer::getPolyData(const DataSetId& id) |
---|
1336 | { |
---|
1337 | PolyDataHashmap::iterator itr = _polyDatas.find(id); |
---|
1338 | |
---|
1339 | if (itr == _polyDatas.end()) { |
---|
1340 | TRACE("PolyData not found: %s", id.c_str()); |
---|
1341 | return NULL; |
---|
1342 | } else |
---|
1343 | return itr->second; |
---|
1344 | } |
---|
1345 | |
---|
1346 | /** |
---|
1347 | * \brief Set opacity of the PolyData for the given DataSet |
---|
1348 | */ |
---|
1349 | void Renderer::setPolyDataOpacity(const DataSetId& id, double opacity) |
---|
1350 | { |
---|
1351 | PolyDataHashmap::iterator itr; |
---|
1352 | |
---|
1353 | bool doAll = false; |
---|
1354 | |
---|
1355 | if (id.compare("all") == 0) { |
---|
1356 | itr = _polyDatas.begin(); |
---|
1357 | doAll = true; |
---|
1358 | } else { |
---|
1359 | itr = _polyDatas.find(id); |
---|
1360 | } |
---|
1361 | if (itr == _polyDatas.end()) { |
---|
1362 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1363 | return; |
---|
1364 | } |
---|
1365 | |
---|
1366 | do { |
---|
1367 | itr->second->setOpacity(opacity); |
---|
1368 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1369 | |
---|
1370 | _needsRedraw = true; |
---|
1371 | } |
---|
1372 | |
---|
1373 | /** |
---|
1374 | * \brief Turn on/off rendering of the PolyData mapper for the given DataSet |
---|
1375 | */ |
---|
1376 | void Renderer::setPolyDataVisibility(const DataSetId& id, bool state) |
---|
1377 | { |
---|
1378 | PolyDataHashmap::iterator itr; |
---|
1379 | |
---|
1380 | bool doAll = false; |
---|
1381 | |
---|
1382 | if (id.compare("all") == 0) { |
---|
1383 | itr = _polyDatas.begin(); |
---|
1384 | doAll = true; |
---|
1385 | } else { |
---|
1386 | itr = _polyDatas.find(id); |
---|
1387 | } |
---|
1388 | if (itr == _polyDatas.end()) { |
---|
1389 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1390 | return; |
---|
1391 | } |
---|
1392 | |
---|
1393 | do { |
---|
1394 | itr->second->setVisibility(state); |
---|
1395 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1396 | |
---|
1397 | _needsRedraw = true; |
---|
1398 | } |
---|
1399 | |
---|
1400 | /** |
---|
1401 | * \brief Set the RGB polygon face color for the specified DataSet |
---|
1402 | */ |
---|
1403 | void Renderer::setPolyDataColor(const DataSetId& id, float color[3]) |
---|
1404 | { |
---|
1405 | PolyDataHashmap::iterator itr; |
---|
1406 | |
---|
1407 | bool doAll = false; |
---|
1408 | |
---|
1409 | if (id.compare("all") == 0) { |
---|
1410 | itr = _polyDatas.begin(); |
---|
1411 | doAll = true; |
---|
1412 | } else { |
---|
1413 | itr = _polyDatas.find(id); |
---|
1414 | } |
---|
1415 | if (itr == _polyDatas.end()) { |
---|
1416 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1417 | return; |
---|
1418 | } |
---|
1419 | |
---|
1420 | do { |
---|
1421 | itr->second->setColor(color); |
---|
1422 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1423 | _needsRedraw = true; |
---|
1424 | } |
---|
1425 | |
---|
1426 | /** |
---|
1427 | * \brief Set the visibility of polygon edges for the specified DataSet |
---|
1428 | */ |
---|
1429 | void Renderer::setPolyDataEdgeVisibility(const DataSetId& id, bool state) |
---|
1430 | { |
---|
1431 | PolyDataHashmap::iterator itr; |
---|
1432 | |
---|
1433 | bool doAll = false; |
---|
1434 | |
---|
1435 | if (id.compare("all") == 0) { |
---|
1436 | itr = _polyDatas.begin(); |
---|
1437 | doAll = true; |
---|
1438 | } else { |
---|
1439 | itr = _polyDatas.find(id); |
---|
1440 | } |
---|
1441 | if (itr == _polyDatas.end()) { |
---|
1442 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1443 | return; |
---|
1444 | } |
---|
1445 | |
---|
1446 | do { |
---|
1447 | itr->second->setEdgeVisibility(state); |
---|
1448 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1449 | |
---|
1450 | _needsRedraw = true; |
---|
1451 | } |
---|
1452 | |
---|
1453 | /** |
---|
1454 | * \brief Set the RGB polygon edge color for the specified DataSet |
---|
1455 | */ |
---|
1456 | void Renderer::setPolyDataEdgeColor(const DataSetId& id, float color[3]) |
---|
1457 | { |
---|
1458 | PolyDataHashmap::iterator itr; |
---|
1459 | |
---|
1460 | bool doAll = false; |
---|
1461 | |
---|
1462 | if (id.compare("all") == 0) { |
---|
1463 | itr = _polyDatas.begin(); |
---|
1464 | doAll = true; |
---|
1465 | } else { |
---|
1466 | itr = _polyDatas.find(id); |
---|
1467 | } |
---|
1468 | if (itr == _polyDatas.end()) { |
---|
1469 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1470 | return; |
---|
1471 | } |
---|
1472 | |
---|
1473 | do { |
---|
1474 | itr->second->setEdgeColor(color); |
---|
1475 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1476 | |
---|
1477 | _needsRedraw = true; |
---|
1478 | } |
---|
1479 | |
---|
1480 | /** |
---|
1481 | * \brief Set the polygon edge width for the specified DataSet (may be a no-op) |
---|
1482 | * |
---|
1483 | * If the OpenGL implementation/hardware does not support wide lines, |
---|
1484 | * this function may not have an effect. |
---|
1485 | */ |
---|
1486 | void Renderer::setPolyDataEdgeWidth(const DataSetId& id, float edgeWidth) |
---|
1487 | { |
---|
1488 | PolyDataHashmap::iterator itr; |
---|
1489 | |
---|
1490 | bool doAll = false; |
---|
1491 | |
---|
1492 | if (id.compare("all") == 0) { |
---|
1493 | itr = _polyDatas.begin(); |
---|
1494 | doAll = true; |
---|
1495 | } else { |
---|
1496 | itr = _polyDatas.find(id); |
---|
1497 | } |
---|
1498 | if (itr == _polyDatas.end()) { |
---|
1499 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1500 | return; |
---|
1501 | } |
---|
1502 | |
---|
1503 | do { |
---|
1504 | itr->second->setEdgeWidth(edgeWidth); |
---|
1505 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1506 | |
---|
1507 | _needsRedraw = true; |
---|
1508 | } |
---|
1509 | |
---|
1510 | /** |
---|
1511 | * \brief Set wireframe rendering for the specified DataSet |
---|
1512 | */ |
---|
1513 | void Renderer::setPolyDataWireframe(const DataSetId& id, bool state) |
---|
1514 | { |
---|
1515 | PolyDataHashmap::iterator itr; |
---|
1516 | |
---|
1517 | bool doAll = false; |
---|
1518 | |
---|
1519 | if (id.compare("all") == 0) { |
---|
1520 | itr = _polyDatas.begin(); |
---|
1521 | doAll = true; |
---|
1522 | } else { |
---|
1523 | itr = _polyDatas.find(id); |
---|
1524 | } |
---|
1525 | if (itr == _polyDatas.end()) { |
---|
1526 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1527 | return; |
---|
1528 | } |
---|
1529 | |
---|
1530 | do { |
---|
1531 | itr->second->setWireframe(state); |
---|
1532 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1533 | |
---|
1534 | _needsRedraw = true; |
---|
1535 | } |
---|
1536 | |
---|
1537 | /** |
---|
1538 | * \brief Turn mesh lighting on/off for the specified DataSet |
---|
1539 | */ |
---|
1540 | void Renderer::setPolyDataLighting(const DataSetId& id, bool state) |
---|
1541 | { |
---|
1542 | PolyDataHashmap::iterator itr; |
---|
1543 | |
---|
1544 | bool doAll = false; |
---|
1545 | |
---|
1546 | if (id.compare("all") == 0) { |
---|
1547 | itr = _polyDatas.begin(); |
---|
1548 | doAll = true; |
---|
1549 | } else { |
---|
1550 | itr = _polyDatas.find(id); |
---|
1551 | } |
---|
1552 | if (itr == _polyDatas.end()) { |
---|
1553 | ERROR("PolyData not found: %s", id.c_str()); |
---|
1554 | return; |
---|
1555 | } |
---|
1556 | |
---|
1557 | do { |
---|
1558 | itr->second->setLighting(state); |
---|
1559 | } while (doAll && ++itr != _polyDatas.end()); |
---|
1560 | |
---|
1561 | _needsRedraw = true; |
---|
1562 | } |
---|
1563 | |
---|
1564 | /** |
---|
1565 | * \brief Resize the render window (image size for renderings) |
---|
1566 | */ |
---|
1567 | void Renderer::setWindowSize(int width, int height) |
---|
1568 | { |
---|
1569 | _windowWidth = width; |
---|
1570 | _windowHeight = height; |
---|
1571 | _renderWindow->SetSize(_windowWidth, _windowHeight); |
---|
1572 | if (_cameraMode == IMAGE) { |
---|
1573 | setCameraZoomRegion(_imgWorldOrigin[0], _imgWorldOrigin[1], |
---|
1574 | _imgWorldDims[0], _imgWorldDims[1]); |
---|
1575 | } |
---|
1576 | _needsRedraw = true; |
---|
1577 | } |
---|
1578 | |
---|
1579 | /** |
---|
1580 | * \brief Change the camera type: perspective, orthographic or image view |
---|
1581 | * |
---|
1582 | * Perspective mode is a normal 3D camera. |
---|
1583 | * |
---|
1584 | * Orthogrphic mode is parallel projection. |
---|
1585 | * |
---|
1586 | * Image mode is an orthographic camera with fixed axes and a clipping region |
---|
1587 | * around the plot area, use setCameraZoomRegion to control the displayed area |
---|
1588 | * |
---|
1589 | * \param[in] mode Enum specifying camera type |
---|
1590 | */ |
---|
1591 | void Renderer::setCameraMode(CameraMode mode) |
---|
1592 | { |
---|
1593 | if (_cameraMode == mode) return; |
---|
1594 | |
---|
1595 | CameraMode origMode = _cameraMode; |
---|
1596 | _cameraMode = mode; |
---|
1597 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1598 | switch (mode) { |
---|
1599 | case ORTHO: { |
---|
1600 | TRACE("Set camera to Ortho mode"); |
---|
1601 | camera->ParallelProjectionOn(); |
---|
1602 | if (origMode == IMAGE) { |
---|
1603 | resetCamera(false); |
---|
1604 | } |
---|
1605 | break; |
---|
1606 | } |
---|
1607 | case PERSPECTIVE: { |
---|
1608 | TRACE("Set camera to Perspective mode"); |
---|
1609 | camera->ParallelProjectionOff(); |
---|
1610 | if (origMode == IMAGE) { |
---|
1611 | resetCamera(false); |
---|
1612 | } |
---|
1613 | break; |
---|
1614 | } |
---|
1615 | case IMAGE: { |
---|
1616 | camera->ParallelProjectionOn(); |
---|
1617 | setCameraZoomRegion(_imgWorldOrigin[0], _imgWorldOrigin[1], |
---|
1618 | _imgWorldDims[0],_imgWorldDims[1]); |
---|
1619 | TRACE("Set camera to Image mode"); |
---|
1620 | break; |
---|
1621 | } |
---|
1622 | default: |
---|
1623 | ERROR("Unkown camera mode: %d", mode); |
---|
1624 | } |
---|
1625 | resetAxes(); |
---|
1626 | _needsRedraw = true; |
---|
1627 | } |
---|
1628 | |
---|
1629 | /** |
---|
1630 | * \brief Get the current camera mode |
---|
1631 | */ |
---|
1632 | Renderer::CameraMode Renderer::getCameraMode() const |
---|
1633 | { |
---|
1634 | return _cameraMode; |
---|
1635 | } |
---|
1636 | |
---|
1637 | void Renderer::setCameraOrientation(double position[3], |
---|
1638 | double focalPoint[3], |
---|
1639 | double viewUp[3]) |
---|
1640 | { |
---|
1641 | memcpy(_cameraPos, position, sizeof(double)*3); |
---|
1642 | memcpy(_cameraFocalPoint, focalPoint, sizeof(double)*3); |
---|
1643 | memcpy(_cameraUp, viewUp, sizeof(double)*3); |
---|
1644 | // Apply the new parameters to the VTK camera |
---|
1645 | restoreCameraOrientation(); |
---|
1646 | _needsRedraw = true; |
---|
1647 | } |
---|
1648 | |
---|
1649 | void Renderer::getCameraOrientation(double position[3], |
---|
1650 | double focalPoint[3], |
---|
1651 | double viewUp[3]) |
---|
1652 | { |
---|
1653 | memcpy(position, _cameraPos, sizeof(double)*3); |
---|
1654 | memcpy(focalPoint, _cameraFocalPoint, sizeof(double)*3); |
---|
1655 | memcpy(viewUp, _cameraUp, sizeof(double)*3); |
---|
1656 | } |
---|
1657 | |
---|
1658 | void Renderer::storeCameraOrientation() |
---|
1659 | { |
---|
1660 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1661 | camera->GetPosition(_cameraPos); |
---|
1662 | camera->GetFocalPoint(_cameraFocalPoint); |
---|
1663 | camera->GetViewUp(_cameraUp); |
---|
1664 | } |
---|
1665 | |
---|
1666 | void Renderer::restoreCameraOrientation() |
---|
1667 | { |
---|
1668 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1669 | camera->SetPosition(_cameraPos); |
---|
1670 | camera->SetFocalPoint(_cameraFocalPoint); |
---|
1671 | camera->SetViewUp(_cameraUp); |
---|
1672 | } |
---|
1673 | |
---|
1674 | /** |
---|
1675 | * \brief Reset pan, zoom, clipping planes and optionally rotation |
---|
1676 | * |
---|
1677 | * \param[in] resetOrientation Reset the camera rotation/orientation also |
---|
1678 | */ |
---|
1679 | void Renderer::resetCamera(bool resetOrientation) |
---|
1680 | { |
---|
1681 | if (_cameraMode == IMAGE) { |
---|
1682 | initCamera(); |
---|
1683 | } else { |
---|
1684 | if (resetOrientation) { |
---|
1685 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1686 | camera->SetPosition(0, 0, 1); |
---|
1687 | camera->SetFocalPoint(0, 0, 0); |
---|
1688 | camera->SetViewUp(0, 1, 0); |
---|
1689 | storeCameraOrientation(); |
---|
1690 | } else { |
---|
1691 | restoreCameraOrientation(); |
---|
1692 | } |
---|
1693 | _renderer->ResetCamera(); |
---|
1694 | _renderer->ResetCameraClippingRange(); |
---|
1695 | computeScreenWorldCoords(); |
---|
1696 | } |
---|
1697 | _cameraZoomRatio = 1; |
---|
1698 | _cameraPan[0] = 0; |
---|
1699 | _cameraPan[1] = 0; |
---|
1700 | |
---|
1701 | _needsRedraw = true; |
---|
1702 | } |
---|
1703 | |
---|
1704 | /** |
---|
1705 | * \brief Perform a relative rotation to current camera orientation |
---|
1706 | * |
---|
1707 | * Angles are in degrees, rotation is about focal point |
---|
1708 | */ |
---|
1709 | void Renderer::rotateCamera(double yaw, double pitch, double roll) |
---|
1710 | { |
---|
1711 | if (_cameraMode == IMAGE) |
---|
1712 | return; |
---|
1713 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1714 | camera->Azimuth(yaw); // Rotate about object |
---|
1715 | //camera->SetYaw(yaw); // Rotate about camera |
---|
1716 | camera->Elevation(pitch); // Rotate about object |
---|
1717 | //camera->SetPitch(pitch); // Rotate about camera |
---|
1718 | camera->Roll(roll); // Roll about camera view axis |
---|
1719 | _renderer->ResetCameraClippingRange(); |
---|
1720 | storeCameraOrientation(); |
---|
1721 | computeScreenWorldCoords(); |
---|
1722 | _needsRedraw = true; |
---|
1723 | } |
---|
1724 | |
---|
1725 | /** |
---|
1726 | * \brief Perform a 2D translation of the camera |
---|
1727 | * |
---|
1728 | * x,y pan amount are specified as signed absolute pan amount in viewport |
---|
1729 | * units -- i.e. 0 is no pan, .5 is half the viewport, 2 is twice the viewport, |
---|
1730 | * etc. |
---|
1731 | * |
---|
1732 | * \param[in] x Viewport coordinate horizontal panning |
---|
1733 | * \param[in] y Viewport coordinate vertical panning (with origin at top) |
---|
1734 | * \param[in] absolute Control if pan amount is relative to current or absolute |
---|
1735 | */ |
---|
1736 | void Renderer::panCamera(double x, double y, bool absolute) |
---|
1737 | { |
---|
1738 | if (_cameraMode == IMAGE) { |
---|
1739 | // Reverse x rather than y, since we are panning the camera, and client |
---|
1740 | // expects to be panning/moving the object |
---|
1741 | x = -x * _screenWorldCoords[2]; |
---|
1742 | y = y * _screenWorldCoords[3]; |
---|
1743 | |
---|
1744 | if (absolute) { |
---|
1745 | double panAbs[2]; |
---|
1746 | panAbs[0] = x; |
---|
1747 | panAbs[1] = y; |
---|
1748 | x -= _cameraPan[0]; |
---|
1749 | y -= _cameraPan[1]; |
---|
1750 | _cameraPan[0] = panAbs[0]; |
---|
1751 | _cameraPan[1] = panAbs[1]; |
---|
1752 | } else { |
---|
1753 | _cameraPan[0] += x; |
---|
1754 | _cameraPan[1] += y; |
---|
1755 | } |
---|
1756 | |
---|
1757 | _imgWorldOrigin[0] += x; |
---|
1758 | _imgWorldOrigin[1] += y; |
---|
1759 | setCameraZoomRegion(_imgWorldOrigin[0], _imgWorldOrigin[1], |
---|
1760 | _imgWorldDims[0], _imgWorldDims[1]); |
---|
1761 | } else { |
---|
1762 | y = -y; |
---|
1763 | if (absolute) { |
---|
1764 | double panAbs[2]; |
---|
1765 | panAbs[0] = x; |
---|
1766 | panAbs[1] = y; |
---|
1767 | x -= _cameraPan[0]; |
---|
1768 | y -= _cameraPan[1]; |
---|
1769 | _cameraPan[0] = panAbs[0]; |
---|
1770 | _cameraPan[1] = panAbs[1]; |
---|
1771 | } else { |
---|
1772 | _cameraPan[0] += x; |
---|
1773 | _cameraPan[1] += y; |
---|
1774 | } |
---|
1775 | |
---|
1776 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1777 | double viewFocus[4], focalDepth, viewPoint[3]; |
---|
1778 | double newPickPoint[4], oldPickPoint[4], motionVector[3]; |
---|
1779 | |
---|
1780 | camera->GetFocalPoint(viewFocus); |
---|
1781 | computeWorldToDisplay(viewFocus[0], viewFocus[1], viewFocus[2], |
---|
1782 | viewFocus); |
---|
1783 | focalDepth = viewFocus[2]; |
---|
1784 | |
---|
1785 | computeDisplayToWorld(( x * 2. + 1.) * _windowWidth / 2.0, |
---|
1786 | ( y * 2. + 1.) * _windowHeight / 2.0, |
---|
1787 | focalDepth, |
---|
1788 | newPickPoint); |
---|
1789 | |
---|
1790 | computeDisplayToWorld(_windowWidth / 2.0, |
---|
1791 | _windowHeight / 2.0, |
---|
1792 | focalDepth, |
---|
1793 | oldPickPoint); |
---|
1794 | |
---|
1795 | // Camera motion is reversed |
---|
1796 | motionVector[0] = oldPickPoint[0] - newPickPoint[0]; |
---|
1797 | motionVector[1] = oldPickPoint[1] - newPickPoint[1]; |
---|
1798 | motionVector[2] = oldPickPoint[2] - newPickPoint[2]; |
---|
1799 | |
---|
1800 | camera->GetFocalPoint(viewFocus); |
---|
1801 | camera->GetPosition(viewPoint); |
---|
1802 | camera->SetFocalPoint(motionVector[0] + viewFocus[0], |
---|
1803 | motionVector[1] + viewFocus[1], |
---|
1804 | motionVector[2] + viewFocus[2]); |
---|
1805 | |
---|
1806 | camera->SetPosition(motionVector[0] + viewPoint[0], |
---|
1807 | motionVector[1] + viewPoint[1], |
---|
1808 | motionVector[2] + viewPoint[2]); |
---|
1809 | |
---|
1810 | _renderer->ResetCameraClippingRange(); |
---|
1811 | storeCameraOrientation(); |
---|
1812 | computeScreenWorldCoords(); |
---|
1813 | } |
---|
1814 | _needsRedraw = true; |
---|
1815 | } |
---|
1816 | |
---|
1817 | /** |
---|
1818 | * \brief Change the FOV of the camera |
---|
1819 | * |
---|
1820 | * \param[in] z Ratio to change zoom (greater than 1 is zoom in, less than 1 is zoom out) |
---|
1821 | * \param[in] absolute Control if zoom factor is relative to current setting or absolute |
---|
1822 | */ |
---|
1823 | void Renderer::zoomCamera(double z, bool absolute) |
---|
1824 | { |
---|
1825 | if (absolute) { |
---|
1826 | assert(_cameraZoomRatio > 0.0); |
---|
1827 | double zAbs = z; |
---|
1828 | z *= 1.0/_cameraZoomRatio; |
---|
1829 | _cameraZoomRatio = zAbs; |
---|
1830 | } else { |
---|
1831 | _cameraZoomRatio *= z; |
---|
1832 | } |
---|
1833 | if (_cameraMode == IMAGE) { |
---|
1834 | double dx = _imgWorldDims[0]; |
---|
1835 | double dy = _imgWorldDims[1]; |
---|
1836 | _imgWorldDims[0] /= z; |
---|
1837 | _imgWorldDims[1] /= z; |
---|
1838 | dx -= _imgWorldDims[0]; |
---|
1839 | dy -= _imgWorldDims[1]; |
---|
1840 | _imgWorldOrigin[0] += dx/2.0; |
---|
1841 | _imgWorldOrigin[1] += dy/2.0; |
---|
1842 | setCameraZoomRegion(_imgWorldOrigin[0], _imgWorldOrigin[1], |
---|
1843 | _imgWorldDims[0], _imgWorldDims[1]); |
---|
1844 | } else { |
---|
1845 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1846 | camera->Zoom(z); // Change perspective FOV angle or ortho parallel scale |
---|
1847 | //camera->Dolly(z); // Move camera forward/back |
---|
1848 | _renderer->ResetCameraClippingRange(); |
---|
1849 | storeCameraOrientation(); |
---|
1850 | } |
---|
1851 | _needsRedraw = true; |
---|
1852 | } |
---|
1853 | |
---|
1854 | /** |
---|
1855 | * \brief Set the pan/zoom using a corner and dimensions in world coordinates |
---|
1856 | * |
---|
1857 | * \param[in] x left world coordinate |
---|
1858 | * \param[in] y bottom world coordinate |
---|
1859 | * \param[in] width Width of zoom region in world coordinates |
---|
1860 | * \param[in] height Height of zoom region in world coordinates |
---|
1861 | */ |
---|
1862 | void Renderer::setCameraZoomRegion(double x, double y, double width, double height) |
---|
1863 | { |
---|
1864 | double camPos[2]; |
---|
1865 | |
---|
1866 | int pxOffsetX = 85; |
---|
1867 | int pxOffsetY = 75; |
---|
1868 | int outerGutter = 15; |
---|
1869 | |
---|
1870 | int imgHeightPx = _windowHeight - pxOffsetY - outerGutter; |
---|
1871 | int imgWidthPx = _windowWidth - pxOffsetX - outerGutter; |
---|
1872 | |
---|
1873 | double imgAspect = width / height; |
---|
1874 | double winAspect = (double)_windowWidth / _windowHeight; |
---|
1875 | |
---|
1876 | double pxToWorld; |
---|
1877 | |
---|
1878 | if (imgAspect >= winAspect) { |
---|
1879 | pxToWorld = width / imgWidthPx; |
---|
1880 | } else { |
---|
1881 | pxToWorld = height / imgHeightPx; |
---|
1882 | } |
---|
1883 | |
---|
1884 | double offsetX = pxOffsetX * pxToWorld; |
---|
1885 | double offsetY = pxOffsetY * pxToWorld; |
---|
1886 | |
---|
1887 | TRACE("Window: %d %d", _windowWidth, _windowHeight); |
---|
1888 | TRACE("ZoomRegion: %g %g %g %g", x, y, width, height); |
---|
1889 | TRACE("pxToWorld: %g", pxToWorld); |
---|
1890 | TRACE("offset: %g %g", offsetX, offsetY); |
---|
1891 | |
---|
1892 | setCameraMode(IMAGE); |
---|
1893 | |
---|
1894 | _imgWorldOrigin[0] = x; |
---|
1895 | _imgWorldOrigin[1] = y; |
---|
1896 | _imgWorldDims[0] = width; |
---|
1897 | _imgWorldDims[1] = height; |
---|
1898 | |
---|
1899 | camPos[0] = _imgWorldOrigin[0] - offsetX + (_windowWidth * pxToWorld)/2.0; |
---|
1900 | camPos[1] = _imgWorldOrigin[1] - offsetY + (_windowHeight * pxToWorld)/2.0; |
---|
1901 | |
---|
1902 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
1903 | camera->ParallelProjectionOn(); |
---|
1904 | camera->SetPosition(camPos[0], camPos[1], 1); |
---|
1905 | camera->SetFocalPoint(camPos[0], camPos[1], 0); |
---|
1906 | camera->SetViewUp(0, 1, 0); |
---|
1907 | camera->SetClippingRange(1, 2); |
---|
1908 | // Half of world coordinate height of viewport (Documentation is wrong) |
---|
1909 | camera->SetParallelScale(_windowHeight * pxToWorld / 2.0); |
---|
1910 | |
---|
1911 | // bottom |
---|
1912 | _clippingPlanes->GetItem(0)->SetOrigin(0, _imgWorldOrigin[1], 0); |
---|
1913 | // left |
---|
1914 | _clippingPlanes->GetItem(1)->SetOrigin(_imgWorldOrigin[0], 0, 0); |
---|
1915 | // top |
---|
1916 | _clippingPlanes->GetItem(2)->SetOrigin(0, _imgWorldOrigin[1] + _imgWorldDims[1], 0); |
---|
1917 | // right |
---|
1918 | _clippingPlanes->GetItem(3)->SetOrigin(_imgWorldOrigin[0] + _imgWorldDims[0], 0, 0); |
---|
1919 | |
---|
1920 | _cubeAxesActor2D->SetBounds(_imgWorldOrigin[0], _imgWorldOrigin[0] + _imgWorldDims[0], |
---|
1921 | _imgWorldOrigin[1], _imgWorldOrigin[1] + _imgWorldDims[1], 0, 0); |
---|
1922 | |
---|
1923 | // Compute screen world coordinates |
---|
1924 | computeScreenWorldCoords(); |
---|
1925 | |
---|
1926 | #ifdef DEBUG |
---|
1927 | printCameraInfo(camera); |
---|
1928 | #endif |
---|
1929 | |
---|
1930 | _needsRedraw = true; |
---|
1931 | } |
---|
1932 | |
---|
1933 | void Renderer::computeDisplayToWorld(double x, double y, double z, double worldPt[4]) |
---|
1934 | { |
---|
1935 | _renderer->SetDisplayPoint(x, y, z); |
---|
1936 | _renderer->DisplayToWorld(); |
---|
1937 | _renderer->GetWorldPoint(worldPt); |
---|
1938 | if (worldPt[3]) { |
---|
1939 | worldPt[0] /= worldPt[3]; |
---|
1940 | worldPt[1] /= worldPt[3]; |
---|
1941 | worldPt[2] /= worldPt[3]; |
---|
1942 | worldPt[3] = 1.0; |
---|
1943 | } |
---|
1944 | } |
---|
1945 | |
---|
1946 | void Renderer::computeWorldToDisplay(double x, double y, double z, double displayPt[3]) |
---|
1947 | { |
---|
1948 | _renderer->SetWorldPoint(x, y, z, 1.0); |
---|
1949 | _renderer->WorldToDisplay(); |
---|
1950 | _renderer->GetDisplayPoint(displayPt); |
---|
1951 | } |
---|
1952 | |
---|
1953 | void Renderer::computeScreenWorldCoords() |
---|
1954 | { |
---|
1955 | // Start with viewport coords [-1,1] |
---|
1956 | double x0 = -1; |
---|
1957 | double y0 = -1; |
---|
1958 | double z0 = -1; |
---|
1959 | double x1 = 1; |
---|
1960 | double y1 = 1; |
---|
1961 | double z1 = -1; |
---|
1962 | |
---|
1963 | vtkMatrix4x4 *mat = vtkMatrix4x4::New(); |
---|
1964 | double result[4]; |
---|
1965 | |
---|
1966 | // get the perspective transformation from the active camera |
---|
1967 | mat->DeepCopy(_renderer->GetActiveCamera()-> |
---|
1968 | GetCompositeProjectionTransformMatrix(_renderer->GetTiledAspectRatio(),0,1)); |
---|
1969 | |
---|
1970 | // use the inverse matrix |
---|
1971 | mat->Invert(); |
---|
1972 | |
---|
1973 | // Transform point to world coordinates |
---|
1974 | result[0] = x0; |
---|
1975 | result[1] = y0; |
---|
1976 | result[2] = z0; |
---|
1977 | result[3] = 1.0; |
---|
1978 | |
---|
1979 | mat->MultiplyPoint(result, result); |
---|
1980 | |
---|
1981 | // Get the transformed vector & set WorldPoint |
---|
1982 | // while we are at it try to keep w at one |
---|
1983 | if (result[3]) { |
---|
1984 | x0 = result[0] / result[3]; |
---|
1985 | y0 = result[1] / result[3]; |
---|
1986 | z0 = result[2] / result[3]; |
---|
1987 | } |
---|
1988 | |
---|
1989 | result[0] = x1; |
---|
1990 | result[1] = y1; |
---|
1991 | result[2] = z1; |
---|
1992 | result[3] = 1.0; |
---|
1993 | |
---|
1994 | mat->MultiplyPoint(result, result); |
---|
1995 | |
---|
1996 | if (result[3]) { |
---|
1997 | x1 = result[0] / result[3]; |
---|
1998 | y1 = result[1] / result[3]; |
---|
1999 | z1 = result[2] / result[3]; |
---|
2000 | } |
---|
2001 | |
---|
2002 | mat->Delete(); |
---|
2003 | |
---|
2004 | _screenWorldCoords[0] = x0; |
---|
2005 | _screenWorldCoords[1] = y0; |
---|
2006 | _screenWorldCoords[2] = x1 - x0; |
---|
2007 | _screenWorldCoords[3] = y1 - y0; |
---|
2008 | } |
---|
2009 | |
---|
2010 | /** |
---|
2011 | * \brief Get the world coordinates of the image camera plot area |
---|
2012 | * |
---|
2013 | * \param[out] xywh Array to hold x,y,width,height world coordinates |
---|
2014 | */ |
---|
2015 | void Renderer::getCameraZoomRegion(double xywh[4]) const |
---|
2016 | { |
---|
2017 | xywh[0] = _imgWorldOrigin[0]; |
---|
2018 | xywh[1] = _imgWorldOrigin[1]; |
---|
2019 | xywh[2] = _imgWorldDims[0]; |
---|
2020 | xywh[3] = _imgWorldDims[1]; |
---|
2021 | } |
---|
2022 | |
---|
2023 | /** |
---|
2024 | * \brief Get the world origin and dimensions of the screen |
---|
2025 | * |
---|
2026 | * \param[out] xywh Array to hold x,y,width,height world coordinates |
---|
2027 | */ |
---|
2028 | void Renderer::getScreenWorldCoords(double xywh[4]) const |
---|
2029 | { |
---|
2030 | memcpy(xywh, _screenWorldCoords, sizeof(double)*4); |
---|
2031 | } |
---|
2032 | |
---|
2033 | /** |
---|
2034 | * \brief Compute bounding box containing the two input bounding boxes |
---|
2035 | * |
---|
2036 | * \param[out] boundsDest Union of the two input bounding boxes |
---|
2037 | * \param[in] bounds1 Input bounding box |
---|
2038 | * \param[in] bounds2 Input bounding box |
---|
2039 | */ |
---|
2040 | void Renderer::mergeBounds(double *boundsDest, |
---|
2041 | const double *bounds1, const double *bounds2) |
---|
2042 | { |
---|
2043 | for (int i = 0; i < 6; i++) { |
---|
2044 | if (i % 2 == 0) |
---|
2045 | boundsDest[i] = min2(bounds1[i], bounds2[i]); |
---|
2046 | else |
---|
2047 | boundsDest[i] = max2(bounds1[i], bounds2[i]); |
---|
2048 | } |
---|
2049 | } |
---|
2050 | |
---|
2051 | /** |
---|
2052 | * \brief Collect bounds of all graphics objects |
---|
2053 | * |
---|
2054 | * \param[out] bounds Bounds of all scene objects |
---|
2055 | * \param[in] onlyVisible Only collect bounds of visible objects |
---|
2056 | */ |
---|
2057 | void Renderer::collectBounds(double *bounds, bool onlyVisible) |
---|
2058 | { |
---|
2059 | bounds[0] = DBL_MAX; |
---|
2060 | bounds[1] = -DBL_MAX; |
---|
2061 | bounds[2] = DBL_MAX; |
---|
2062 | bounds[3] = -DBL_MAX; |
---|
2063 | bounds[4] = DBL_MAX; |
---|
2064 | bounds[5] = -DBL_MAX; |
---|
2065 | |
---|
2066 | for (PseudoColorHashmap::iterator itr = _pseudoColors.begin(); |
---|
2067 | itr != _pseudoColors.end(); ++itr) { |
---|
2068 | if (!onlyVisible || itr->second->getVisibility()) |
---|
2069 | mergeBounds(bounds, bounds, itr->second->getActor()->GetBounds()); |
---|
2070 | } |
---|
2071 | for (Contour2DHashmap::iterator itr = _contours.begin(); |
---|
2072 | itr != _contours.end(); ++itr) { |
---|
2073 | if (!onlyVisible || itr->second->getVisibility()) |
---|
2074 | mergeBounds(bounds, bounds, itr->second->getActor()->GetBounds()); |
---|
2075 | } |
---|
2076 | for (PolyDataHashmap::iterator itr = _polyDatas.begin(); |
---|
2077 | itr != _polyDatas.end(); ++itr) { |
---|
2078 | if (!onlyVisible || itr->second->getVisibility()) |
---|
2079 | mergeBounds(bounds, bounds, itr->second->getActor()->GetBounds()); |
---|
2080 | } |
---|
2081 | for (int i = 0; i < 6; i++) { |
---|
2082 | if (i % 2 == 0) { |
---|
2083 | if (bounds[i] == DBL_MAX) |
---|
2084 | bounds[i] = 0; |
---|
2085 | } else { |
---|
2086 | if (bounds[i] == -DBL_MAX) |
---|
2087 | bounds[i] = 1; |
---|
2088 | } |
---|
2089 | } |
---|
2090 | } |
---|
2091 | |
---|
2092 | /** |
---|
2093 | * \brief Update data ranges for color-mapping and contours |
---|
2094 | * |
---|
2095 | * \param[in] useCumulative Use cumulative range of all DataSets |
---|
2096 | */ |
---|
2097 | void Renderer::updateRanges(bool useCumulative) |
---|
2098 | { |
---|
2099 | for (PseudoColorHashmap::iterator itr = _pseudoColors.begin(); |
---|
2100 | itr != _pseudoColors.end(); ++itr) { |
---|
2101 | vtkLookupTable *lut = itr->second->getLookupTable(); |
---|
2102 | if (lut) { |
---|
2103 | if (useCumulative) { |
---|
2104 | lut->SetRange(_cumulativeDataRange); |
---|
2105 | } else { |
---|
2106 | double range[2]; |
---|
2107 | if (itr->second->getDataSet()) { |
---|
2108 | itr->second->getDataSet()->getDataRange(range); |
---|
2109 | lut->SetRange(range); |
---|
2110 | } |
---|
2111 | } |
---|
2112 | } |
---|
2113 | } |
---|
2114 | for (Contour2DHashmap::iterator itr = _contours.begin(); |
---|
2115 | itr != _contours.end(); ++itr) { |
---|
2116 | // Only need to update range if using evenly spaced contours |
---|
2117 | if (itr->second->getContourList().empty()) { |
---|
2118 | if (useCumulative) { |
---|
2119 | itr->second->setContours(itr->second->getNumContours(), _cumulativeDataRange); |
---|
2120 | } else { |
---|
2121 | itr->second->setContours(itr->second->getNumContours()); |
---|
2122 | } |
---|
2123 | } |
---|
2124 | } |
---|
2125 | } |
---|
2126 | |
---|
2127 | /** |
---|
2128 | * \brief Collect cumulative data range of all DataSets |
---|
2129 | * |
---|
2130 | * \param[inout] range Data range of all DataSets |
---|
2131 | * \param[in] onlyVisible Only collect range of visible DataSets |
---|
2132 | */ |
---|
2133 | void Renderer::collectDataRanges(double *range, bool onlyVisible) |
---|
2134 | { |
---|
2135 | range[0] = DBL_MAX; |
---|
2136 | range[1] = -DBL_MAX; |
---|
2137 | |
---|
2138 | for (DataSetHashmap::iterator itr = _dataSets.begin(); |
---|
2139 | itr != _dataSets.end(); ++itr) { |
---|
2140 | if (!onlyVisible || itr->second->getVisibility()) { |
---|
2141 | double r[2]; |
---|
2142 | itr->second->getDataRange(r); |
---|
2143 | range[0] = min2(range[0], r[0]); |
---|
2144 | range[1] = max2(range[1], r[1]); |
---|
2145 | } |
---|
2146 | } |
---|
2147 | if (range[0] == DBL_MAX) |
---|
2148 | range[0] = 0; |
---|
2149 | if (range[1] == -DBL_MAX) |
---|
2150 | range[1] = 1; |
---|
2151 | } |
---|
2152 | |
---|
2153 | #ifdef notdef |
---|
2154 | void Renderer::setPerspectiveCameraByBounds(double bounds[6]) |
---|
2155 | { |
---|
2156 | vtkSmartPointer<vtkCamera> camera = _renderer->GetActiveCamera(); |
---|
2157 | camera->ParallelProjectionOff(); |
---|
2158 | camera->Reset(); |
---|
2159 | } |
---|
2160 | #endif |
---|
2161 | |
---|
2162 | /** |
---|
2163 | * \brief Initialize the camera zoom region to include the bounding volume given |
---|
2164 | */ |
---|
2165 | void Renderer::initCamera() |
---|
2166 | { |
---|
2167 | double bounds[6]; |
---|
2168 | collectBounds(bounds, true); |
---|
2169 | _imgWorldOrigin[0] = bounds[0]; |
---|
2170 | _imgWorldOrigin[1] = bounds[2]; |
---|
2171 | _imgWorldDims[0] = bounds[1] - bounds[0]; |
---|
2172 | _imgWorldDims[1] = bounds[3] - bounds[2]; |
---|
2173 | _cameraPan[0] = 0; |
---|
2174 | _cameraPan[1] = 0; |
---|
2175 | _cameraZoomRatio = 1; |
---|
2176 | |
---|
2177 | if (_cameraMode == IMAGE) { |
---|
2178 | _renderer->ResetCamera(); |
---|
2179 | setCameraZoomRegion(_imgWorldOrigin[0], _imgWorldOrigin[1], |
---|
2180 | _imgWorldDims[0], _imgWorldDims[1]); |
---|
2181 | resetAxes(); |
---|
2182 | } else if (_cameraMode == ORTHO) { |
---|
2183 | _renderer->GetActiveCamera()->ParallelProjectionOn(); |
---|
2184 | resetAxes(); |
---|
2185 | _renderer->ResetCamera(); |
---|
2186 | computeScreenWorldCoords(); |
---|
2187 | } else if (_cameraMode == PERSPECTIVE) { |
---|
2188 | _renderer->GetActiveCamera()->ParallelProjectionOff(); |
---|
2189 | resetAxes(); |
---|
2190 | _renderer->ResetCamera(); |
---|
2191 | computeScreenWorldCoords(); |
---|
2192 | } |
---|
2193 | } |
---|
2194 | |
---|
2195 | /** |
---|
2196 | * \brief Print debugging info about a vtkCamera |
---|
2197 | */ |
---|
2198 | void Renderer::printCameraInfo(vtkCamera *camera) |
---|
2199 | { |
---|
2200 | TRACE("Parallel Scale: %g, Cam pos: %g %g %g, focal pt: %g %g %g, view up: %g %g %g, Clipping range: %g %g", |
---|
2201 | camera->GetParallelScale(), |
---|
2202 | camera->GetPosition()[0], |
---|
2203 | camera->GetPosition()[1], |
---|
2204 | camera->GetPosition()[2], |
---|
2205 | camera->GetFocalPoint()[0], |
---|
2206 | camera->GetFocalPoint()[1], |
---|
2207 | camera->GetFocalPoint()[2], |
---|
2208 | camera->GetViewUp()[0], |
---|
2209 | camera->GetViewUp()[1], |
---|
2210 | camera->GetViewUp()[2], |
---|
2211 | camera->GetClippingRange()[0], |
---|
2212 | camera->GetClippingRange()[1]); |
---|
2213 | } |
---|
2214 | |
---|
2215 | /** |
---|
2216 | * \brief Set the RGB background color to render into the image |
---|
2217 | */ |
---|
2218 | void Renderer::setBackgroundColor(float color[3]) |
---|
2219 | { |
---|
2220 | _bgColor[0] = color[0]; |
---|
2221 | _bgColor[1] = color[1]; |
---|
2222 | _bgColor[2] = color[2]; |
---|
2223 | _renderer->SetBackground(_bgColor[0], _bgColor[1], _bgColor[2]); |
---|
2224 | _needsRedraw = true; |
---|
2225 | } |
---|
2226 | |
---|
2227 | /** |
---|
2228 | * \brief Set the opacity of the specified DataSet's associated graphics objects |
---|
2229 | */ |
---|
2230 | void Renderer::setOpacity(const DataSetId& id, double opacity) |
---|
2231 | { |
---|
2232 | setPseudoColorOpacity(id, opacity); |
---|
2233 | setContourOpacity(id, opacity); |
---|
2234 | setPolyDataOpacity(id, opacity); |
---|
2235 | } |
---|
2236 | |
---|
2237 | /** |
---|
2238 | * \brief Turn on/off rendering of the specified DataSet's associated graphics objects |
---|
2239 | */ |
---|
2240 | void Renderer::setVisibility(const DataSetId& id, bool state) |
---|
2241 | { |
---|
2242 | DataSetHashmap::iterator itr; |
---|
2243 | |
---|
2244 | bool doAll = false; |
---|
2245 | |
---|
2246 | if (id.compare("all") == 0) { |
---|
2247 | itr = _dataSets.begin(); |
---|
2248 | doAll = true; |
---|
2249 | } else { |
---|
2250 | itr = _dataSets.find(id); |
---|
2251 | } |
---|
2252 | if (itr == _dataSets.end()) { |
---|
2253 | ERROR("Unknown dataset %s", id.c_str()); |
---|
2254 | return; |
---|
2255 | } |
---|
2256 | |
---|
2257 | do { |
---|
2258 | itr->second->setVisibility(state); |
---|
2259 | } while (doAll && ++itr != _dataSets.end()); |
---|
2260 | |
---|
2261 | setPseudoColorVisibility(id, state); |
---|
2262 | setContourVisibility(id, state); |
---|
2263 | setPolyDataVisibility(id, state); |
---|
2264 | } |
---|
2265 | |
---|
2266 | /** |
---|
2267 | * \brief Cause the rendering to render a new image if needed |
---|
2268 | * |
---|
2269 | * The _needsRedraw flag indicates if a state change has occured since |
---|
2270 | * the last rendered frame |
---|
2271 | */ |
---|
2272 | bool Renderer::render() |
---|
2273 | { |
---|
2274 | if (_needsRedraw) { |
---|
2275 | if (_cameraMode == IMAGE) { |
---|
2276 | for (PseudoColorHashmap::iterator itr = _pseudoColors.begin(); |
---|
2277 | itr != _pseudoColors.end(); ++itr) { |
---|
2278 | itr->second->setClippingPlanes(_clippingPlanes); |
---|
2279 | } |
---|
2280 | for (Contour2DHashmap::iterator itr = _contours.begin(); |
---|
2281 | itr != _contours.end(); ++itr) { |
---|
2282 | itr->second->setClippingPlanes(_clippingPlanes); |
---|
2283 | } |
---|
2284 | for (PolyDataHashmap::iterator itr = _polyDatas.begin(); |
---|
2285 | itr != _polyDatas.end(); ++itr) { |
---|
2286 | itr->second->setClippingPlanes(_clippingPlanes); |
---|
2287 | } |
---|
2288 | } else { |
---|
2289 | for (PseudoColorHashmap::iterator itr = _pseudoColors.begin(); |
---|
2290 | itr != _pseudoColors.end(); ++itr) { |
---|
2291 | itr->second->setClippingPlanes(NULL); |
---|
2292 | } |
---|
2293 | for (Contour2DHashmap::iterator itr = _contours.begin(); |
---|
2294 | itr != _contours.end(); ++itr) { |
---|
2295 | itr->second->setClippingPlanes(NULL); |
---|
2296 | } |
---|
2297 | for (PolyDataHashmap::iterator itr = _polyDatas.begin(); |
---|
2298 | itr != _polyDatas.end(); ++itr) { |
---|
2299 | itr->second->setClippingPlanes(NULL); |
---|
2300 | } |
---|
2301 | } |
---|
2302 | _renderWindow->Render(); |
---|
2303 | _needsRedraw = false; |
---|
2304 | return true; |
---|
2305 | } else |
---|
2306 | return false; |
---|
2307 | } |
---|
2308 | |
---|
2309 | /// Get the pixel width of the render window/image |
---|
2310 | int Renderer::getWindowWidth() const |
---|
2311 | { |
---|
2312 | return _windowWidth; |
---|
2313 | } |
---|
2314 | |
---|
2315 | /// Get the pixel height of the render window/image |
---|
2316 | int Renderer::getWindowHeight() const |
---|
2317 | { |
---|
2318 | return _windowHeight; |
---|
2319 | } |
---|
2320 | |
---|
2321 | /** |
---|
2322 | * \brief Read back the rendered framebuffer image |
---|
2323 | */ |
---|
2324 | void Renderer::getRenderedFrame(vtkUnsignedCharArray *imgData) |
---|
2325 | { |
---|
2326 | _renderWindow->GetPixelData(0, 0, _windowWidth-1, _windowHeight-1, 1, imgData); |
---|
2327 | TRACE("Image data size: %d", imgData->GetSize()); |
---|
2328 | } |
---|
2329 | |
---|
2330 | /** |
---|
2331 | * \brief Get nearest data value given display coordinates x,y |
---|
2332 | * |
---|
2333 | * Note: no interpolation is performed on data |
---|
2334 | */ |
---|
2335 | double Renderer::getDataValueAtPixel(const DataSetId& id, int x, int y) |
---|
2336 | { |
---|
2337 | vtkSmartPointer<vtkCoordinate> coord = vtkSmartPointer<vtkCoordinate>::New(); |
---|
2338 | coord->SetCoordinateSystemToDisplay(); |
---|
2339 | coord->SetValue(x, y, 0); |
---|
2340 | double *worldCoords = coord->GetComputedWorldValue(_renderer); |
---|
2341 | |
---|
2342 | TRACE("Pixel coords: %d, %d\nWorld coords: %.12e, %.12e, %12e", x, y, |
---|
2343 | worldCoords[0], |
---|
2344 | worldCoords[1], |
---|
2345 | worldCoords[2]); |
---|
2346 | |
---|
2347 | return getDataValue(id, worldCoords[0], worldCoords[1], worldCoords[2]); |
---|
2348 | } |
---|
2349 | |
---|
2350 | /** |
---|
2351 | * \brief Get nearest data value given world coordinates x,y,z |
---|
2352 | * |
---|
2353 | * Note: no interpolation is performed on data |
---|
2354 | */ |
---|
2355 | double Renderer::getDataValue(const DataSetId& id, double x, double y, double z) |
---|
2356 | { |
---|
2357 | DataSet *ds = getDataSet(id); |
---|
2358 | if (ds == NULL) |
---|
2359 | return 0; |
---|
2360 | vtkDataSet *vtkds = ds->getVtkDataSet(); |
---|
2361 | vtkIdType pt = vtkds->FindPoint(x, y, z); |
---|
2362 | return vtkds->GetPointData()->GetScalars()->GetComponent(pt, 0); |
---|
2363 | } |
---|