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 <cassert> |
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9 | |
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10 | #include <vtkDataSet.h> |
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11 | #include <vtkPointData.h> |
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12 | #include <vtkCellData.h> |
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13 | #include <vtkCellDataToPointData.h> |
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14 | #include <vtkDataSetMapper.h> |
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15 | #include <vtkPolyDataMapper.h> |
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16 | #include <vtkUnstructuredGrid.h> |
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17 | #include <vtkProperty.h> |
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18 | #include <vtkImageData.h> |
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19 | #include <vtkLookupTable.h> |
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20 | #include <vtkTransform.h> |
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21 | #include <vtkDelaunay2D.h> |
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22 | #include <vtkDelaunay3D.h> |
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23 | #include <vtkGaussianSplatter.h> |
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24 | #include <vtkExtractVOI.h> |
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25 | #include <vtkDataSetSurfaceFilter.h> |
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26 | #include <vtkContourFilter.h> |
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27 | #include <vtkStripper.h> |
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28 | #include <vtkWarpScalar.h> |
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29 | #include <vtkPropAssembly.h> |
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30 | #include <vtkCutter.h> |
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31 | #include <vtkPlane.h> |
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32 | |
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33 | #include "RpHeightMap.h" |
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34 | #include "RpVtkRenderer.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 | #define MESH_POINT_CLOUDS |
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40 | |
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41 | HeightMap::HeightMap(int numContours, double heightScale) : |
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42 | VtkGraphicsObject(), |
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43 | _numContours(numContours), |
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44 | _colorMap(NULL), |
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45 | _contourEdgeWidth(1.0), |
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46 | _warpScale(heightScale), |
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47 | _sliceAxis(Z_AXIS), |
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48 | _pipelineInitialized(false) |
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49 | { |
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50 | _contourEdgeColor[0] = 1.0f; |
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51 | _contourEdgeColor[1] = 0.0f; |
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52 | _contourEdgeColor[2] = 0.0f; |
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53 | } |
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54 | |
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55 | HeightMap::HeightMap(const std::vector<double>& contours, double heightScale) : |
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56 | VtkGraphicsObject(), |
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57 | _numContours(contours.size()), |
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58 | _contours(contours), |
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59 | _colorMap(NULL), |
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60 | _contourEdgeWidth(1.0), |
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61 | _warpScale(heightScale), |
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62 | _sliceAxis(Z_AXIS), |
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63 | _pipelineInitialized(false) |
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64 | { |
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65 | _contourEdgeColor[0] = 1.0f; |
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66 | _contourEdgeColor[1] = 0.0f; |
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67 | _contourEdgeColor[2] = 0.0f; |
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68 | } |
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69 | |
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70 | HeightMap::~HeightMap() |
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71 | { |
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72 | #ifdef WANT_TRACE |
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73 | if (_dataSet != NULL) |
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74 | TRACE("Deleting HeightMap for %s", _dataSet->getName().c_str()); |
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75 | else |
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76 | TRACE("Deleting HeightMap with NULL DataSet"); |
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77 | #endif |
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78 | } |
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79 | |
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80 | void HeightMap::setDataSet(DataSet *dataSet, |
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81 | Renderer *renderer) |
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82 | { |
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83 | if (_dataSet != dataSet) { |
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84 | _dataSet = dataSet; |
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85 | |
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86 | if (_dataSet != NULL) { |
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87 | if (renderer->getUseCumulativeRange()) { |
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88 | renderer->getCumulativeDataRange(_dataRange, |
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89 | _dataSet->getActiveScalarsName(), |
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90 | 1); |
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91 | } else { |
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92 | _dataSet->getScalarRange(_dataRange); |
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93 | } |
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94 | |
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95 | // Compute a data scaling factor to make maximum |
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96 | // height (at default _warpScale) equivalent to |
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97 | // largest dimension of data set |
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98 | double bounds[6]; |
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99 | double boundsRange = 0.0; |
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100 | _dataSet->getBounds(bounds); |
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101 | for (int i = 0; i < 6; i+=2) { |
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102 | double r = bounds[i+1] - bounds[i]; |
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103 | if (r > boundsRange) |
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104 | boundsRange = r; |
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105 | } |
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106 | double datRange = _dataRange[1] - _dataRange[0]; |
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107 | if (datRange < 1.0e-10) { |
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108 | _dataScale = 1.0; |
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109 | } else { |
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110 | _dataScale = boundsRange / datRange; |
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111 | } |
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112 | TRACE("Bounds range: %g data range: %g scaling: %g", |
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113 | boundsRange, datRange, _dataScale); |
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114 | } |
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115 | |
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116 | update(); |
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117 | } |
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118 | } |
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119 | |
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120 | /** |
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121 | * \brief Create and initialize VTK Props to render the colormapped dataset |
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122 | */ |
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123 | void HeightMap::initProp() |
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124 | { |
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125 | if (_dsActor == NULL) { |
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126 | _dsActor = vtkSmartPointer<vtkActor>::New(); |
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127 | _dsActor->GetProperty()->SetOpacity(_opacity); |
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128 | _dsActor->GetProperty()->SetEdgeColor(_edgeColor[0], |
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129 | _edgeColor[1], |
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130 | _edgeColor[2]); |
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131 | _dsActor->GetProperty()->SetLineWidth(_edgeWidth); |
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132 | _dsActor->GetProperty()->EdgeVisibilityOff(); |
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133 | _dsActor->GetProperty()->SetAmbient(.2); |
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134 | _dsActor->GetProperty()->LightingOn(); |
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135 | } |
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136 | if (_contourActor == NULL) { |
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137 | _contourActor = vtkSmartPointer<vtkActor>::New(); |
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138 | _contourActor->GetProperty()->SetOpacity(_opacity); |
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139 | _contourActor->GetProperty()->SetColor(_contourEdgeColor[0], |
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140 | _contourEdgeColor[1], |
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141 | _contourEdgeColor[2]); |
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142 | _contourActor->GetProperty()->SetEdgeColor(_contourEdgeColor[0], |
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143 | _contourEdgeColor[1], |
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144 | _contourEdgeColor[2]); |
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145 | _contourActor->GetProperty()->SetLineWidth(_contourEdgeWidth); |
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146 | _contourActor->GetProperty()->EdgeVisibilityOff(); |
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147 | _contourActor->GetProperty()->SetAmbient(.2); |
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148 | _contourActor->GetProperty()->LightingOff(); |
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149 | } |
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150 | if (_prop == NULL) { |
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151 | _prop = vtkSmartPointer<vtkAssembly>::New(); |
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152 | getAssembly()->AddPart(_dsActor); |
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153 | getAssembly()->AddPart(_contourActor); |
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154 | } |
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155 | } |
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156 | |
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157 | /** |
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158 | * \brief Internal method to set up pipeline after a state change |
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159 | */ |
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160 | void HeightMap::update() |
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161 | { |
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162 | if (_dataSet == NULL) |
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163 | return; |
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164 | |
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165 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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166 | |
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167 | TRACE("DataSet type: %s", _dataSet->getVtkType()); |
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168 | |
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169 | // Contour filter to generate isolines |
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170 | if (_contourFilter == NULL) { |
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171 | _contourFilter = vtkSmartPointer<vtkContourFilter>::New(); |
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172 | } |
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173 | |
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174 | // Mapper, actor to render color-mapped data set |
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175 | if (_dsMapper == NULL) { |
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176 | _dsMapper = vtkSmartPointer<vtkDataSetMapper>::New(); |
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177 | // Map scalars through lookup table regardless of type |
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178 | _dsMapper->SetColorModeToMapScalars(); |
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179 | } |
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180 | |
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181 | if (!_pipelineInitialized) { |
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182 | vtkSmartPointer<vtkCellDataToPointData> cellToPtData; |
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183 | |
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184 | if (ds->GetPointData() == NULL || |
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185 | ds->GetPointData()->GetScalars() == NULL) { |
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186 | WARN("No scalar point data in dataset %s", _dataSet->getName().c_str()); |
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187 | if (ds->GetCellData() != NULL && |
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188 | ds->GetCellData()->GetScalars() != NULL) { |
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189 | cellToPtData = |
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190 | vtkSmartPointer<vtkCellDataToPointData>::New(); |
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191 | cellToPtData->SetInput(ds); |
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192 | //cellToPtData->PassCellDataOn(); |
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193 | cellToPtData->Update(); |
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194 | ds = cellToPtData->GetOutput(); |
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195 | } else { |
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196 | ERROR("No scalar cell data in dataset %s", _dataSet->getName().c_str()); |
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197 | return; |
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198 | } |
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199 | } |
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200 | |
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201 | vtkPolyData *pd = vtkPolyData::SafeDownCast(ds); |
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202 | if (pd != NULL) { |
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203 | // DataSet is a vtkPolyData |
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204 | if (pd->GetNumberOfLines() == 0 && |
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205 | pd->GetNumberOfPolys() == 0 && |
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206 | pd->GetNumberOfStrips() == 0) { |
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207 | // DataSet is a point cloud |
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208 | PrincipalPlane plane; |
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209 | double offset; |
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210 | if (_dataSet->is2D(&plane, &offset)) { |
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211 | #ifdef MESH_POINT_CLOUDS |
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212 | // Result of Delaunay2D is a PolyData |
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213 | vtkSmartPointer<vtkDelaunay2D> mesher = vtkSmartPointer<vtkDelaunay2D>::New(); |
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214 | if (plane == PLANE_ZY) { |
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215 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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216 | trans->RotateWXYZ(90, 0, 1, 0); |
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217 | if (offset != 0.0) { |
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218 | trans->Translate(-offset, 0, 0); |
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219 | } |
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220 | mesher->SetTransform(trans); |
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221 | _sliceAxis = X_AXIS; |
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222 | } else if (plane == PLANE_XZ) { |
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223 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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224 | trans->RotateWXYZ(-90, 1, 0, 0); |
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225 | if (offset != 0.0) { |
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226 | trans->Translate(0, -offset, 0); |
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227 | } |
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228 | mesher->SetTransform(trans); |
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229 | _sliceAxis = Y_AXIS; |
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230 | } else if (offset != 0.0) { |
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231 | // XY with Z offset |
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232 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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233 | trans->Translate(0, 0, -offset); |
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234 | mesher->SetTransform(trans); |
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235 | } |
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236 | mesher->SetInput(pd); |
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237 | vtkAlgorithmOutput *warpOutput = initWarp(mesher->GetOutputPort()); |
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238 | _dsMapper->SetInputConnection(warpOutput); |
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239 | _contourFilter->SetInputConnection(warpOutput); |
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240 | #else |
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241 | if (_pointSplatter == NULL) |
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242 | _pointSplatter = vtkSmartPointer<vtkGaussianSplatter>::New(); |
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243 | if (_volumeSlicer == NULL) |
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244 | _volumeSlicer = vtkSmartPointer<vtkExtractVOI>::New(); |
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245 | _pointSplatter->SetInput(pd); |
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246 | int dims[3]; |
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247 | _pointSplatter->GetSampleDimensions(dims); |
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248 | TRACE("Sample dims: %d %d %d", dims[0], dims[1], dims[2]); |
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249 | if (plane == PLANE_ZY) { |
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250 | dims[0] = 3; |
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251 | _volumeSlicer->SetVOI(1, 1, 0, dims[1]-1, 0, dims[1]-1); |
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252 | _sliceAxis = X_AXIS; |
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253 | } else if (plane == PLANE_XZ) { |
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254 | dims[1] = 3; |
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255 | _volumeSlicer->SetVOI(0, dims[0]-1, 1, 1, 0, dims[2]-1); |
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256 | _sliceAxis = Y_AXIS; |
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257 | } else { |
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258 | dims[2] = 3; |
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259 | _volumeSlicer->SetVOI(0, dims[0]-1, 0, dims[1]-1, 1, 1); |
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260 | } |
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261 | _pointSplatter->SetSampleDimensions(dims); |
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262 | double bounds[6]; |
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263 | _pointSplatter->Update(); |
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264 | _pointSplatter->GetModelBounds(bounds); |
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265 | TRACE("Model bounds: %g %g %g %g %g %g", |
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266 | bounds[0], bounds[1], |
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267 | bounds[2], bounds[3], |
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268 | bounds[4], bounds[5]); |
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269 | _volumeSlicer->SetInputConnection(_pointSplatter->GetOutputPort()); |
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270 | _volumeSlicer->SetSampleRate(1, 1, 1); |
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271 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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272 | gf->UseStripsOn(); |
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273 | gf->SetInputConnection(_volumeSlicer->GetOutputPort()); |
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274 | vtkAlgorithmOutput *warpOutput = initWarp(gf->GetOutputPort()); |
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275 | _dsMapper->SetInputConnection(warpOutput); |
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276 | _contourFilter->SetInputConnection(warpOutput); |
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277 | #endif |
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278 | } else { |
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279 | #ifdef MESH_POINT_CLOUDS |
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280 | // Data Set is a 3D point cloud |
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281 | // Result of Delaunay3D mesher is unstructured grid |
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282 | vtkSmartPointer<vtkDelaunay3D> mesher = vtkSmartPointer<vtkDelaunay3D>::New(); |
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283 | mesher->SetInput(pd); |
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284 | // Run the mesher |
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285 | mesher->Update(); |
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286 | // Get bounds of resulting grid |
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287 | double bounds[6]; |
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288 | mesher->GetOutput()->GetBounds(bounds); |
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289 | // Sample a plane within the grid bounding box |
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290 | vtkSmartPointer<vtkCutter> cutter = vtkSmartPointer<vtkCutter>::New(); |
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291 | cutter->SetInputConnection(mesher->GetOutputPort()); |
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292 | if (_cutPlane == NULL) { |
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293 | _cutPlane = vtkSmartPointer<vtkPlane>::New(); |
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294 | } |
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295 | _cutPlane->SetNormal(0, 0, 1); |
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296 | _cutPlane->SetOrigin(0, |
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297 | 0, |
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298 | bounds[4] + (bounds[5]-bounds[4])/2.); |
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299 | cutter->SetCutFunction(_cutPlane); |
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300 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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301 | gf->UseStripsOn(); |
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302 | gf->SetInputConnection(cutter->GetOutputPort()); |
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303 | #else |
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304 | if (_pointSplatter == NULL) |
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305 | _pointSplatter = vtkSmartPointer<vtkGaussianSplatter>::New(); |
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306 | _pointSplatter->SetInput(pd); |
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307 | int dims[3]; |
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308 | _pointSplatter->GetSampleDimensions(dims); |
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309 | TRACE("Sample dims: %d %d %d", dims[0], dims[1], dims[2]); |
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310 | dims[2] = 3; |
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311 | _pointSplatter->SetSampleDimensions(dims); |
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312 | double bounds[6]; |
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313 | _pointSplatter->Update(); |
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314 | _pointSplatter->GetModelBounds(bounds); |
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315 | TRACE("Model bounds: %g %g %g %g %g %g", |
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316 | bounds[0], bounds[1], |
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317 | bounds[2], bounds[3], |
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318 | bounds[4], bounds[5]); |
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319 | if (_volumeSlicer == NULL) |
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320 | _volumeSlicer = vtkSmartPointer<vtkExtractVOI>::New(); |
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321 | _volumeSlicer->SetInputConnection(_pointSplatter->GetOutputPort()); |
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322 | _volumeSlicer->SetVOI(0, dims[0]-1, 0, dims[1]-1, 1, 1); |
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323 | _volumeSlicer->SetSampleRate(1, 1, 1); |
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324 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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325 | gf->UseStripsOn(); |
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326 | gf->SetInputConnection(_volumeSlicer->GetOutputPort()); |
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327 | #endif |
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328 | vtkAlgorithmOutput *warpOutput = initWarp(gf->GetOutputPort()); |
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329 | _dsMapper->SetInputConnection(warpOutput); |
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330 | _contourFilter->SetInputConnection(warpOutput); |
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331 | } |
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332 | } else { |
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333 | // DataSet is a vtkPolyData with lines and/or polygons |
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334 | vtkAlgorithmOutput *warpOutput = initWarp(pd); |
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335 | if (warpOutput != NULL) { |
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336 | _dsMapper->SetInputConnection(warpOutput); |
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337 | _contourFilter->SetInputConnection(warpOutput); |
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338 | } else { |
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339 | _dsMapper->SetInput(pd); |
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340 | _contourFilter->SetInput(pd); |
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341 | } |
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342 | } |
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343 | } else { |
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344 | // DataSet is NOT a vtkPolyData |
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345 | // Can be: image/volume/uniform grid, structured grid, unstructured grid, rectilinear grid |
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346 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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347 | gf->UseStripsOn(); |
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348 | vtkImageData *imageData = vtkImageData::SafeDownCast(ds); |
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349 | if (!_dataSet->is2D() && imageData != NULL) { |
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350 | // 3D image/volume/uniform grid |
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351 | if (_volumeSlicer == NULL) |
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352 | _volumeSlicer = vtkSmartPointer<vtkExtractVOI>::New(); |
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353 | int dims[3]; |
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354 | imageData->GetDimensions(dims); |
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355 | TRACE("Image data dimensions: %d %d %d", dims[0], dims[1], dims[2]); |
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356 | _volumeSlicer->SetInput(ds); |
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357 | _volumeSlicer->SetVOI(0, dims[0]-1, 0, dims[1]-1, (dims[2]-1)/2, (dims[2]-1)/2); |
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358 | _volumeSlicer->SetSampleRate(1, 1, 1); |
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359 | gf->SetInputConnection(_volumeSlicer->GetOutputPort()); |
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360 | } else if (!_dataSet->is2D() && imageData == NULL) { |
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361 | // 3D structured grid, unstructured grid, or rectilinear grid |
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362 | double bounds[6]; |
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363 | ds->GetBounds(bounds); |
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364 | // Sample a plane within the grid bounding box |
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365 | vtkSmartPointer<vtkCutter> cutter = vtkSmartPointer<vtkCutter>::New(); |
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366 | cutter->SetInput(ds); |
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367 | if (_cutPlane == NULL) { |
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368 | _cutPlane = vtkSmartPointer<vtkPlane>::New(); |
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369 | } |
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370 | _cutPlane->SetNormal(0, 0, 1); |
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371 | _cutPlane->SetOrigin(0, |
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372 | 0, |
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373 | bounds[4] + (bounds[5]-bounds[4])/2.); |
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374 | cutter->SetCutFunction(_cutPlane); |
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375 | gf->SetInputConnection(cutter->GetOutputPort()); |
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376 | } else { |
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377 | // 2D data |
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378 | gf->SetInput(ds); |
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379 | } |
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380 | vtkAlgorithmOutput *warpOutput = initWarp(gf->GetOutputPort()); |
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381 | _dsMapper->SetInputConnection(warpOutput); |
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382 | _contourFilter->SetInputConnection(warpOutput); |
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383 | } |
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384 | } |
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385 | |
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386 | _pipelineInitialized = true; |
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387 | |
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388 | if (_lut == NULL) { |
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389 | setColorMap(ColorMap::getDefault()); |
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390 | } |
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391 | //_dsMapper->InterpolateScalarsBeforeMappingOn(); |
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392 | |
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393 | initProp(); |
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394 | |
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395 | _contourFilter->ComputeNormalsOff(); |
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396 | _contourFilter->ComputeGradientsOff(); |
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397 | |
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398 | // Speed up multiple contour computation at cost of extra memory use |
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399 | if (_numContours > 1) { |
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400 | _contourFilter->UseScalarTreeOn(); |
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401 | } else { |
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402 | _contourFilter->UseScalarTreeOff(); |
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403 | } |
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404 | |
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405 | _contourFilter->SetNumberOfContours(_numContours); |
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406 | |
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407 | if (_contours.empty()) { |
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408 | // Evenly spaced isovalues |
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409 | _contourFilter->GenerateValues(_numContours, _dataRange[0], _dataRange[1]); |
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410 | } else { |
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411 | // User-supplied isovalues |
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412 | for (int i = 0; i < _numContours; i++) { |
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413 | _contourFilter->SetValue(i, _contours[i]); |
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414 | } |
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415 | } |
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416 | if (_contourMapper == NULL) { |
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417 | _contourMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); |
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418 | _contourMapper->ScalarVisibilityOff(); |
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419 | _contourMapper->SetResolveCoincidentTopologyToPolygonOffset(); |
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420 | vtkSmartPointer<vtkStripper> stripper = vtkSmartPointer<vtkStripper>::New(); |
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421 | stripper->SetInputConnection(_contourFilter->GetOutputPort()); |
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422 | _contourMapper->SetInputConnection(stripper->GetOutputPort()); |
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423 | _contourActor->SetMapper(_contourMapper); |
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424 | } |
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425 | |
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426 | _dsActor->SetMapper(_dsMapper); |
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427 | |
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428 | _dsMapper->Update(); |
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429 | _contourMapper->Update(); |
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430 | } |
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431 | |
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432 | vtkAlgorithmOutput *HeightMap::initWarp(vtkAlgorithmOutput *input) |
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433 | { |
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434 | TRACE("Warp scale: %g", _warpScale); |
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435 | if (_warpScale == 0.0) { |
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436 | _warp = NULL; |
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437 | return input; |
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438 | } else if (input == NULL) { |
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439 | ERROR("NULL input"); |
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440 | return input; |
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441 | } else { |
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442 | if (_warp == NULL) |
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443 | _warp = vtkSmartPointer<vtkWarpScalar>::New(); |
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444 | switch (_sliceAxis) { |
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445 | case X_AXIS: |
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446 | _warp->SetNormal(1, 0, 0); |
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447 | break; |
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448 | case Y_AXIS: |
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449 | _warp->SetNormal(0, 1, 0); |
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450 | break; |
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451 | default: |
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452 | _warp->SetNormal(0, 0, 1); |
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453 | } |
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454 | _warp->UseNormalOn(); |
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455 | _warp->SetScaleFactor(_warpScale * _dataScale); |
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456 | _warp->SetInputConnection(input); |
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457 | return _warp->GetOutputPort(); |
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458 | } |
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459 | } |
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460 | |
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461 | vtkAlgorithmOutput *HeightMap::initWarp(vtkPolyData *pdInput) |
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462 | { |
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463 | TRACE("Warp scale: %g", _warpScale); |
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464 | if (_warpScale == 0.0) { |
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465 | _warp = NULL; |
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466 | return NULL; |
---|
467 | } else if (pdInput == NULL) { |
---|
468 | ERROR("NULL input"); |
---|
469 | return NULL; |
---|
470 | } else { |
---|
471 | if (_warp == NULL) |
---|
472 | _warp = vtkSmartPointer<vtkWarpScalar>::New(); |
---|
473 | switch (_sliceAxis) { |
---|
474 | case X_AXIS: |
---|
475 | _warp->SetNormal(1, 0, 0); |
---|
476 | break; |
---|
477 | case Y_AXIS: |
---|
478 | _warp->SetNormal(0, 1, 0); |
---|
479 | break; |
---|
480 | default: |
---|
481 | _warp->SetNormal(0, 0, 1); |
---|
482 | } |
---|
483 | _warp->UseNormalOn(); |
---|
484 | _warp->SetScaleFactor(_warpScale * _dataScale); |
---|
485 | _warp->SetInput(pdInput); |
---|
486 | return _warp->GetOutputPort(); |
---|
487 | } |
---|
488 | } |
---|
489 | |
---|
490 | /** |
---|
491 | * \brief Controls relative scaling of height of mountain plot |
---|
492 | */ |
---|
493 | void HeightMap::setHeightScale(double scale) |
---|
494 | { |
---|
495 | if (_warpScale == scale) |
---|
496 | return; |
---|
497 | |
---|
498 | _warpScale = scale; |
---|
499 | if (_warp == NULL) { |
---|
500 | vtkAlgorithmOutput *warpOutput = initWarp(_dsMapper->GetInputConnection(0, 0)); |
---|
501 | _dsMapper->SetInputConnection(warpOutput); |
---|
502 | _contourFilter->SetInputConnection(warpOutput); |
---|
503 | } else if (scale == 0.0) { |
---|
504 | vtkAlgorithmOutput *warpInput = _warp->GetInputConnection(0, 0); |
---|
505 | _dsMapper->SetInputConnection(warpInput); |
---|
506 | _contourFilter->SetInputConnection(warpInput); |
---|
507 | _warp = NULL; |
---|
508 | } else { |
---|
509 | _warp->SetScaleFactor(_warpScale * _dataScale); |
---|
510 | } |
---|
511 | |
---|
512 | if (_dsMapper != NULL) |
---|
513 | _dsMapper->Update(); |
---|
514 | if (_contourMapper != NULL) |
---|
515 | _contourMapper->Update(); |
---|
516 | } |
---|
517 | |
---|
518 | /** |
---|
519 | * \brief Select a 2D slice plane from a 3D DataSet |
---|
520 | * |
---|
521 | * \param[in] axis Axis of slice plane |
---|
522 | * \param[in] ratio Position [0,1] of slice plane along axis |
---|
523 | */ |
---|
524 | void HeightMap::selectVolumeSlice(Axis axis, double ratio) |
---|
525 | { |
---|
526 | if (_dataSet->is2D()) { |
---|
527 | WARN("DataSet not 3D, returning"); |
---|
528 | return; |
---|
529 | } |
---|
530 | |
---|
531 | if (_volumeSlicer == NULL && |
---|
532 | _cutPlane == NULL) { |
---|
533 | WARN("Called before update() or DataSet is not a volume"); |
---|
534 | return; |
---|
535 | } |
---|
536 | |
---|
537 | _sliceAxis = axis; |
---|
538 | if (_warp != NULL) { |
---|
539 | switch (axis) { |
---|
540 | case X_AXIS: |
---|
541 | _warp->SetNormal(1, 0, 0); |
---|
542 | break; |
---|
543 | case Y_AXIS: |
---|
544 | _warp->SetNormal(0, 1, 0); |
---|
545 | break; |
---|
546 | case Z_AXIS: |
---|
547 | _warp->SetNormal(0, 0, 1); |
---|
548 | break; |
---|
549 | default: |
---|
550 | ERROR("Invalid Axis"); |
---|
551 | return; |
---|
552 | } |
---|
553 | } |
---|
554 | |
---|
555 | if (_cutPlane != NULL) { |
---|
556 | double bounds[6]; |
---|
557 | _dataSet->getBounds(bounds); |
---|
558 | switch (axis) { |
---|
559 | case X_AXIS: |
---|
560 | _cutPlane->SetNormal(1, 0, 0); |
---|
561 | _cutPlane->SetOrigin(bounds[0] + (bounds[1]-bounds[0]) * ratio, |
---|
562 | 0, |
---|
563 | 0); |
---|
564 | break; |
---|
565 | case Y_AXIS: |
---|
566 | _cutPlane->SetNormal(0, 1, 0); |
---|
567 | _cutPlane->SetOrigin(0, |
---|
568 | bounds[2] + (bounds[3]-bounds[2]) * ratio, |
---|
569 | 0); |
---|
570 | break; |
---|
571 | case Z_AXIS: |
---|
572 | _cutPlane->SetNormal(0, 0, 1); |
---|
573 | _cutPlane->SetOrigin(0, |
---|
574 | 0, |
---|
575 | bounds[4] + (bounds[5]-bounds[4]) * ratio); |
---|
576 | break; |
---|
577 | default: |
---|
578 | ERROR("Invalid Axis"); |
---|
579 | return; |
---|
580 | } |
---|
581 | } else { |
---|
582 | int dims[3]; |
---|
583 | if (_pointSplatter != NULL) { |
---|
584 | _pointSplatter->GetSampleDimensions(dims); |
---|
585 | } else { |
---|
586 | vtkImageData *imageData = vtkImageData::SafeDownCast(_dataSet->getVtkDataSet()); |
---|
587 | if (imageData == NULL) { |
---|
588 | ERROR("Not a volume data set"); |
---|
589 | return; |
---|
590 | } |
---|
591 | imageData->GetDimensions(dims); |
---|
592 | } |
---|
593 | int voi[6]; |
---|
594 | |
---|
595 | switch (axis) { |
---|
596 | case X_AXIS: |
---|
597 | voi[0] = voi[1] = (int)((dims[0]-1) * ratio); |
---|
598 | voi[2] = 0; |
---|
599 | voi[3] = dims[1]-1; |
---|
600 | voi[4] = 0; |
---|
601 | voi[5] = dims[2]-1; |
---|
602 | break; |
---|
603 | case Y_AXIS: |
---|
604 | voi[0] = 0; |
---|
605 | voi[1] = dims[0]-1; |
---|
606 | voi[2] = voi[3] = (int)((dims[1]-1) * ratio); |
---|
607 | voi[4] = 0; |
---|
608 | voi[5] = dims[2]-1; |
---|
609 | break; |
---|
610 | case Z_AXIS: |
---|
611 | voi[0] = 0; |
---|
612 | voi[1] = dims[0]-1; |
---|
613 | voi[2] = 0; |
---|
614 | voi[3] = dims[1]-1; |
---|
615 | voi[4] = voi[5] = (int)((dims[2]-1) * ratio); |
---|
616 | break; |
---|
617 | default: |
---|
618 | ERROR("Invalid Axis"); |
---|
619 | return; |
---|
620 | } |
---|
621 | |
---|
622 | _volumeSlicer->SetVOI(voi); |
---|
623 | } |
---|
624 | |
---|
625 | if (_dsMapper != NULL) |
---|
626 | _dsMapper->Update(); |
---|
627 | if (_contourMapper != NULL) |
---|
628 | _contourMapper->Update(); |
---|
629 | } |
---|
630 | |
---|
631 | /** |
---|
632 | * \brief Called when the color map has been edited |
---|
633 | */ |
---|
634 | void HeightMap::updateColorMap() |
---|
635 | { |
---|
636 | setColorMap(_colorMap); |
---|
637 | } |
---|
638 | |
---|
639 | /** |
---|
640 | * \brief Associate a colormap lookup table with the DataSet |
---|
641 | */ |
---|
642 | void HeightMap::setColorMap(ColorMap *cmap) |
---|
643 | { |
---|
644 | if (cmap == NULL) |
---|
645 | return; |
---|
646 | |
---|
647 | _colorMap = cmap; |
---|
648 | |
---|
649 | if (_lut == NULL) { |
---|
650 | _lut = vtkSmartPointer<vtkLookupTable>::New(); |
---|
651 | if (_dsMapper != NULL) { |
---|
652 | _dsMapper->UseLookupTableScalarRangeOn(); |
---|
653 | _dsMapper->SetLookupTable(_lut); |
---|
654 | } |
---|
655 | } |
---|
656 | |
---|
657 | _lut->DeepCopy(cmap->getLookupTable()); |
---|
658 | _lut->SetRange(_dataRange); |
---|
659 | } |
---|
660 | |
---|
661 | void HeightMap::updateRanges(Renderer *renderer) |
---|
662 | { |
---|
663 | VtkGraphicsObject::updateRanges(renderer); |
---|
664 | |
---|
665 | if (_lut != NULL) { |
---|
666 | _lut->SetRange(_dataRange); |
---|
667 | } |
---|
668 | |
---|
669 | if (_contours.empty() && _numContours > 0) { |
---|
670 | // Need to recompute isovalues |
---|
671 | update(); |
---|
672 | } |
---|
673 | } |
---|
674 | |
---|
675 | /** |
---|
676 | * \brief Specify number of evenly spaced contour lines to render |
---|
677 | * |
---|
678 | * Will override any existing contours |
---|
679 | */ |
---|
680 | void HeightMap::setNumContours(int numContours) |
---|
681 | { |
---|
682 | _contours.clear(); |
---|
683 | _numContours = numContours; |
---|
684 | |
---|
685 | update(); |
---|
686 | } |
---|
687 | |
---|
688 | /** |
---|
689 | * \brief Specify an explicit list of contour isovalues |
---|
690 | * |
---|
691 | * Will override any existing contours |
---|
692 | */ |
---|
693 | void HeightMap::setContourList(const std::vector<double>& contours) |
---|
694 | { |
---|
695 | _contours = contours; |
---|
696 | _numContours = (int)_contours.size(); |
---|
697 | |
---|
698 | update(); |
---|
699 | } |
---|
700 | |
---|
701 | /** |
---|
702 | * \brief Get the number of contours |
---|
703 | */ |
---|
704 | int HeightMap::getNumContours() const |
---|
705 | { |
---|
706 | return _numContours; |
---|
707 | } |
---|
708 | |
---|
709 | /** |
---|
710 | * \brief Get the contour list (may be empty if number of contours |
---|
711 | * was specified in place of a list) |
---|
712 | */ |
---|
713 | const std::vector<double>& HeightMap::getContourList() const |
---|
714 | { |
---|
715 | return _contours; |
---|
716 | } |
---|
717 | |
---|
718 | /** |
---|
719 | * \brief Turn on/off lighting of this object |
---|
720 | */ |
---|
721 | void HeightMap::setLighting(bool state) |
---|
722 | { |
---|
723 | if (_dsActor != NULL) |
---|
724 | _dsActor->GetProperty()->SetLighting((state ? 1 : 0)); |
---|
725 | } |
---|
726 | |
---|
727 | /** |
---|
728 | * \brief Turn on/off rendering of mesh edges |
---|
729 | */ |
---|
730 | void HeightMap::setEdgeVisibility(bool state) |
---|
731 | { |
---|
732 | if (_dsActor != NULL) { |
---|
733 | _dsActor->GetProperty()->SetEdgeVisibility((state ? 1 : 0)); |
---|
734 | } |
---|
735 | } |
---|
736 | |
---|
737 | /** |
---|
738 | * \brief Turn on/off rendering of colormaped surface |
---|
739 | */ |
---|
740 | void HeightMap::setContourSurfaceVisibility(bool state) |
---|
741 | { |
---|
742 | if (_dsActor != NULL) { |
---|
743 | _dsActor->SetVisibility((state ? 1 : 0)); |
---|
744 | } |
---|
745 | } |
---|
746 | |
---|
747 | /** |
---|
748 | * \brief Turn on/off rendering of contour isolines |
---|
749 | */ |
---|
750 | void HeightMap::setContourLineVisibility(bool state) |
---|
751 | { |
---|
752 | if (_contourActor != NULL) { |
---|
753 | _contourActor->SetVisibility((state ? 1 : 0)); |
---|
754 | } |
---|
755 | } |
---|
756 | |
---|
757 | /** |
---|
758 | * \brief Set RGB color of polygon edges |
---|
759 | */ |
---|
760 | void HeightMap::setEdgeColor(float color[3]) |
---|
761 | { |
---|
762 | _edgeColor[0] = color[0]; |
---|
763 | _edgeColor[1] = color[1]; |
---|
764 | _edgeColor[2] = color[2]; |
---|
765 | if (_dsActor != NULL) |
---|
766 | _dsActor->GetProperty()->SetEdgeColor(_edgeColor[0], _edgeColor[1], _edgeColor[2]); |
---|
767 | } |
---|
768 | |
---|
769 | /** |
---|
770 | * \brief Set pixel width of polygon edges (may be a no-op) |
---|
771 | */ |
---|
772 | void HeightMap::setEdgeWidth(float edgeWidth) |
---|
773 | { |
---|
774 | _edgeWidth = edgeWidth; |
---|
775 | if (_dsActor != NULL) |
---|
776 | _dsActor->GetProperty()->SetLineWidth(_edgeWidth); |
---|
777 | } |
---|
778 | |
---|
779 | /** |
---|
780 | * \brief Set RGB color of contour isolines |
---|
781 | */ |
---|
782 | void HeightMap::setContourEdgeColor(float color[3]) |
---|
783 | { |
---|
784 | _contourEdgeColor[0] = color[0]; |
---|
785 | _contourEdgeColor[1] = color[1]; |
---|
786 | _contourEdgeColor[2] = color[2]; |
---|
787 | if (_contourActor != NULL) { |
---|
788 | _contourActor->GetProperty()->SetColor(_contourEdgeColor[0], |
---|
789 | _contourEdgeColor[1], |
---|
790 | _contourEdgeColor[2]); |
---|
791 | _contourActor->GetProperty()->SetEdgeColor(_contourEdgeColor[0], |
---|
792 | _contourEdgeColor[1], |
---|
793 | _contourEdgeColor[2]); |
---|
794 | } |
---|
795 | } |
---|
796 | |
---|
797 | /** |
---|
798 | * \brief Set pixel width of contour isolines (may be a no-op) |
---|
799 | */ |
---|
800 | void HeightMap::setContourEdgeWidth(float edgeWidth) |
---|
801 | { |
---|
802 | _contourEdgeWidth = edgeWidth; |
---|
803 | if (_contourActor != NULL) |
---|
804 | _contourActor->GetProperty()->SetLineWidth(_contourEdgeWidth); |
---|
805 | } |
---|
806 | |
---|
807 | /** |
---|
808 | * \brief Set a group of world coordinate planes to clip rendering |
---|
809 | * |
---|
810 | * Passing NULL for planes will remove all cliping planes |
---|
811 | */ |
---|
812 | void HeightMap::setClippingPlanes(vtkPlaneCollection *planes) |
---|
813 | { |
---|
814 | if (_dsMapper != NULL) { |
---|
815 | _dsMapper->SetClippingPlanes(planes); |
---|
816 | } |
---|
817 | if (_contourMapper != NULL) { |
---|
818 | _contourMapper->SetClippingPlanes(planes); |
---|
819 | } |
---|
820 | } |
---|
821 | |
---|