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 <vtkDataSetMapper.h> |
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13 | #include <vtkUnstructuredGrid.h> |
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14 | #include <vtkProperty.h> |
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15 | #include <vtkImageData.h> |
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16 | #include <vtkLookupTable.h> |
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17 | #include <vtkTransform.h> |
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18 | #include <vtkDelaunay2D.h> |
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19 | #include <vtkDelaunay3D.h> |
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20 | #include <vtkGaussianSplatter.h> |
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21 | #include <vtkExtractVOI.h> |
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22 | #include <vtkDataSetSurfaceFilter.h> |
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23 | |
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24 | #include "RpPseudoColor.h" |
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25 | #include "Trace.h" |
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26 | |
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27 | #define MESH_POINT_CLOUDS |
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28 | |
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29 | using namespace Rappture::VtkVis; |
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30 | |
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31 | PseudoColor::PseudoColor() : |
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32 | VtkGraphicsObject(), |
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33 | _colorMode(COLOR_BY_SCALAR), |
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34 | _colorMap(NULL) |
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35 | { |
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36 | } |
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37 | |
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38 | PseudoColor::~PseudoColor() |
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39 | { |
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40 | #ifdef WANT_TRACE |
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41 | if (_dataSet != NULL) |
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42 | TRACE("Deleting PseudoColor for %s", _dataSet->getName().c_str()); |
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43 | else |
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44 | TRACE("Deleting PseudoColor with NULL DataSet"); |
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45 | #endif |
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46 | } |
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47 | |
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48 | void PseudoColor::setDataSet(DataSet *dataSet, |
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49 | bool useCumulative, |
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50 | double scalarRange[2], |
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51 | double vectorMagnitudeRange[2], |
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52 | double vectorComponentRange[3][2]) |
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53 | { |
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54 | if (_dataSet != dataSet) { |
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55 | _dataSet = dataSet; |
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56 | |
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57 | if (useCumulative) { |
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58 | _dataRange[0] = scalarRange[0]; |
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59 | _dataRange[1] = scalarRange[1]; |
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60 | _vectorMagnitudeRange[0] = vectorMagnitudeRange[0]; |
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61 | _vectorMagnitudeRange[1] = vectorMagnitudeRange[1]; |
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62 | for (int i = 0; i < 3; i++) { |
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63 | _vectorComponentRange[i][0] = vectorComponentRange[i][0]; |
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64 | _vectorComponentRange[i][1] = vectorComponentRange[i][1]; |
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65 | } |
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66 | } else { |
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67 | _dataSet->getScalarRange(_dataRange); |
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68 | _dataSet->getVectorRange(_vectorMagnitudeRange); |
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69 | for (int i = 0; i < 3; i++) { |
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70 | _dataSet->getVectorRange(_vectorComponentRange[i], i); |
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71 | } |
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72 | } |
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73 | |
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74 | update(); |
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75 | } |
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76 | } |
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77 | |
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78 | /** |
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79 | * \brief Internal method to set up pipeline after a state change |
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80 | */ |
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81 | void PseudoColor::update() |
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82 | { |
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83 | if (_dataSet == NULL) |
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84 | return; |
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85 | |
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86 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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87 | |
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88 | // Mapper, actor to render color-mapped data set |
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89 | if (_dsMapper == NULL) { |
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90 | _dsMapper = vtkSmartPointer<vtkDataSetMapper>::New(); |
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91 | // Map scalars through lookup table regardless of type |
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92 | _dsMapper->SetColorModeToMapScalars(); |
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93 | //_dsMapper->InterpolateScalarsBeforeMappingOn(); |
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94 | } |
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95 | |
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96 | vtkPolyData *pd = vtkPolyData::SafeDownCast(ds); |
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97 | if (pd) { |
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98 | // DataSet is a vtkPolyData |
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99 | if (pd->GetNumberOfLines() == 0 && |
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100 | pd->GetNumberOfPolys() == 0 && |
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101 | pd->GetNumberOfStrips() == 0) { |
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102 | // DataSet is a point cloud |
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103 | DataSet::PrincipalPlane plane; |
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104 | double offset; |
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105 | if (_dataSet->is2D(&plane, &offset)) { |
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106 | #ifdef MESH_POINT_CLOUDS |
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107 | vtkSmartPointer<vtkDelaunay2D> mesher = vtkSmartPointer<vtkDelaunay2D>::New(); |
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108 | if (plane == DataSet::PLANE_ZY) { |
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109 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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110 | trans->RotateWXYZ(90, 0, 1, 0); |
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111 | if (offset != 0.0) { |
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112 | trans->Translate(-offset, 0, 0); |
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113 | } |
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114 | mesher->SetTransform(trans); |
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115 | } else if (plane == DataSet::PLANE_XZ) { |
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116 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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117 | trans->RotateWXYZ(-90, 1, 0, 0); |
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118 | if (offset != 0.0) { |
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119 | trans->Translate(0, -offset, 0); |
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120 | } |
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121 | mesher->SetTransform(trans); |
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122 | } else if (offset != 0.0) { |
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123 | // XY with Z offset |
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124 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
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125 | trans->Translate(0, 0, -offset); |
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126 | mesher->SetTransform(trans); |
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127 | } |
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128 | mesher->SetInput(pd); |
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129 | _dsMapper->SetInputConnection(mesher->GetOutputPort()); |
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130 | #else |
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131 | vtkSmartPointer<vtkGaussianSplatter> splatter = vtkSmartPointer<vtkGaussianSplatter>::New(); |
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132 | vtkSmartPointer<vtkExtractVOI> slicer = vtkSmartPointer<vtkExtractVOI>::New(); |
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133 | splatter->SetInput(pd); |
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134 | int dims[3]; |
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135 | splatter->GetSampleDimensions(dims); |
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136 | TRACE("Sample dims: %d %d %d", dims[0], dims[1], dims[2]); |
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137 | if (plane == DataSet::PLANE_ZY) { |
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138 | dims[0] = 3; |
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139 | slicer->SetVOI(1, 1, 0, dims[1]-1, 0, dims[1]-1); |
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140 | } else if (plane == DataSet::PLANE_XZ) { |
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141 | dims[1] = 3; |
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142 | slicer->SetVOI(0, dims[0]-1, 1, 1, 0, dims[2]-1); |
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143 | } else { |
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144 | dims[2] = 3; |
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145 | slicer->SetVOI(0, dims[0]-1, 0, dims[1]-1, 1, 1); |
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146 | } |
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147 | splatter->SetSampleDimensions(dims); |
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148 | double bounds[6]; |
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149 | splatter->Update(); |
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150 | splatter->GetModelBounds(bounds); |
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151 | TRACE("Model bounds: %g %g %g %g %g %g", |
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152 | bounds[0], bounds[1], |
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153 | bounds[2], bounds[3], |
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154 | bounds[4], bounds[5]); |
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155 | slicer->SetInputConnection(splatter->GetOutputPort()); |
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156 | slicer->SetSampleRate(1, 1, 1); |
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157 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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158 | gf->UseStripsOn(); |
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159 | gf->SetInputConnection(slicer->GetOutputPort()); |
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160 | _dsMapper->SetInputConnection(gf->GetOutputPort()); |
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161 | #endif |
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162 | } else { |
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163 | vtkSmartPointer<vtkDelaunay3D> mesher = vtkSmartPointer<vtkDelaunay3D>::New(); |
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164 | mesher->SetInput(pd); |
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165 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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166 | gf->SetInputConnection(mesher->GetOutputPort()); |
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167 | _dsMapper->SetInputConnection(gf->GetOutputPort()); |
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168 | } |
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169 | } else { |
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170 | // DataSet is a vtkPolyData with lines and/or polygons |
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171 | _dsMapper->SetInput(ds); |
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172 | } |
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173 | } else { |
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174 | TRACE("Generating surface for data set"); |
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175 | // DataSet is NOT a vtkPolyData |
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176 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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177 | gf->SetInput(ds); |
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178 | _dsMapper->SetInputConnection(gf->GetOutputPort()); |
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179 | } |
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180 | |
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181 | if (_lut == NULL) { |
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182 | setColorMap(ColorMap::getDefault()); |
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183 | } |
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184 | |
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185 | setColorMode(_colorMode); |
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186 | |
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187 | initProp(); |
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188 | getActor()->SetMapper(_dsMapper); |
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189 | _dsMapper->Update(); |
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190 | } |
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191 | |
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192 | void PseudoColor::updateRanges(bool useCumulative, |
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193 | double scalarRange[2], |
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194 | double vectorMagnitudeRange[2], |
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195 | double vectorComponentRange[3][2]) |
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196 | { |
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197 | if (useCumulative) { |
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198 | _dataRange[0] = scalarRange[0]; |
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199 | _dataRange[1] = scalarRange[1]; |
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200 | _vectorMagnitudeRange[0] = vectorMagnitudeRange[0]; |
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201 | _vectorMagnitudeRange[1] = vectorMagnitudeRange[1]; |
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202 | for (int i = 0; i < 3; i++) { |
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203 | _vectorComponentRange[i][0] = vectorComponentRange[i][0]; |
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204 | _vectorComponentRange[i][1] = vectorComponentRange[i][1]; |
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205 | } |
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206 | } else if (_dataSet != NULL) { |
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207 | _dataSet->getScalarRange(_dataRange); |
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208 | _dataSet->getVectorRange(_vectorMagnitudeRange); |
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209 | for (int i = 0; i < 3; i++) { |
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210 | _dataSet->getVectorRange(_vectorComponentRange[i], i); |
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211 | } |
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212 | } |
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213 | |
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214 | // Need to update color map ranges and/or active vector field |
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215 | setColorMode(_colorMode); |
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216 | } |
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217 | |
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218 | void PseudoColor::setColorMode(ColorMode mode) |
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219 | { |
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220 | _colorMode = mode; |
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221 | if (_dataSet == NULL || _dsMapper == NULL) |
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222 | return; |
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223 | |
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224 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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225 | |
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226 | switch (mode) { |
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227 | case COLOR_BY_SCALAR: { |
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228 | _dsMapper->ScalarVisibilityOn(); |
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229 | _dsMapper->SetScalarModeToDefault(); |
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230 | if (_lut != NULL) { |
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231 | _lut->SetRange(_dataRange); |
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232 | } |
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233 | } |
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234 | break; |
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235 | case COLOR_BY_VECTOR_MAGNITUDE: { |
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236 | _dsMapper->ScalarVisibilityOn(); |
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237 | _dsMapper->SetScalarModeToUsePointFieldData(); |
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238 | if (ds->GetPointData() != NULL && |
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239 | ds->GetPointData()->GetVectors() != NULL) { |
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240 | _dsMapper->SelectColorArray(ds->GetPointData()->GetVectors()->GetName()); |
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241 | } |
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242 | if (_lut != NULL) { |
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243 | _lut->SetRange(_vectorMagnitudeRange); |
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244 | _lut->SetVectorModeToMagnitude(); |
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245 | } |
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246 | } |
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247 | break; |
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248 | case COLOR_BY_VECTOR_X: |
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249 | _dsMapper->ScalarVisibilityOn(); |
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250 | _dsMapper->SetScalarModeToUsePointFieldData(); |
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251 | if (ds->GetPointData() != NULL && |
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252 | ds->GetPointData()->GetVectors() != NULL) { |
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253 | _dsMapper->SelectColorArray(ds->GetPointData()->GetVectors()->GetName()); |
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254 | } |
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255 | if (_lut != NULL) { |
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256 | _lut->SetRange(_vectorComponentRange[0]); |
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257 | _lut->SetVectorModeToComponent(); |
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258 | _lut->SetVectorComponent(0); |
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259 | } |
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260 | break; |
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261 | case COLOR_BY_VECTOR_Y: |
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262 | _dsMapper->ScalarVisibilityOn(); |
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263 | _dsMapper->SetScalarModeToUsePointFieldData(); |
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264 | if (ds->GetPointData() != NULL && |
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265 | ds->GetPointData()->GetVectors() != NULL) { |
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266 | _dsMapper->SelectColorArray(ds->GetPointData()->GetVectors()->GetName()); |
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267 | } |
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268 | if (_lut != NULL) { |
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269 | _lut->SetRange(_vectorComponentRange[1]); |
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270 | _lut->SetVectorModeToComponent(); |
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271 | _lut->SetVectorComponent(1); |
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272 | } |
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273 | break; |
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274 | case COLOR_BY_VECTOR_Z: |
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275 | _dsMapper->ScalarVisibilityOn(); |
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276 | _dsMapper->SetScalarModeToUsePointFieldData(); |
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277 | if (ds->GetPointData() != NULL && |
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278 | ds->GetPointData()->GetVectors() != NULL) { |
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279 | _dsMapper->SelectColorArray(ds->GetPointData()->GetVectors()->GetName()); |
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280 | } |
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281 | if (_lut != NULL) { |
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282 | _lut->SetRange(_vectorComponentRange[2]); |
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283 | _lut->SetVectorModeToComponent(); |
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284 | _lut->SetVectorComponent(2); |
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285 | } |
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286 | break; |
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287 | case COLOR_CONSTANT: |
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288 | default: |
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289 | _dsMapper->ScalarVisibilityOff(); |
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290 | break; |
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291 | } |
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292 | } |
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293 | |
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294 | /** |
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295 | * \brief Called when the color map has been edited |
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296 | */ |
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297 | void PseudoColor::updateColorMap() |
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298 | { |
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299 | setColorMap(_colorMap); |
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300 | } |
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301 | |
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302 | /** |
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303 | * \brief Associate a colormap lookup table with the DataSet |
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304 | */ |
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305 | void PseudoColor::setColorMap(ColorMap *cmap) |
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306 | { |
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307 | if (cmap == NULL) |
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308 | return; |
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309 | |
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310 | _colorMap = cmap; |
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311 | |
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312 | if (_lut == NULL) { |
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313 | _lut = vtkSmartPointer<vtkLookupTable>::New(); |
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314 | if (_dsMapper != NULL) { |
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315 | _dsMapper->UseLookupTableScalarRangeOn(); |
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316 | _dsMapper->SetLookupTable(_lut); |
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317 | } |
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318 | } |
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319 | |
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320 | _lut->DeepCopy(cmap->getLookupTable()); |
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321 | |
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322 | switch (_colorMode) { |
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323 | case COLOR_CONSTANT: |
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324 | case COLOR_BY_SCALAR: |
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325 | _lut->SetRange(_dataRange); |
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326 | break; |
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327 | case COLOR_BY_VECTOR_MAGNITUDE: |
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328 | _lut->SetVectorModeToMagnitude(); |
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329 | _lut->SetRange(_vectorMagnitudeRange); |
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330 | break; |
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331 | case COLOR_BY_VECTOR_X: |
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332 | _lut->SetVectorModeToComponent(); |
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333 | _lut->SetVectorComponent(0); |
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334 | _lut->SetRange(_vectorComponentRange[0]); |
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335 | break; |
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336 | case COLOR_BY_VECTOR_Y: |
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337 | _lut->SetVectorModeToComponent(); |
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338 | _lut->SetVectorComponent(1); |
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339 | _lut->SetRange(_vectorComponentRange[1]); |
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340 | break; |
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341 | case COLOR_BY_VECTOR_Z: |
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342 | _lut->SetVectorModeToComponent(); |
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343 | _lut->SetVectorComponent(2); |
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344 | _lut->SetRange(_vectorComponentRange[2]); |
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345 | break; |
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346 | default: |
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347 | break; |
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348 | } |
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349 | } |
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350 | |
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351 | /** |
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352 | * \brief Set a group of world coordinate planes to clip rendering |
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353 | * |
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354 | * Passing NULL for planes will remove all cliping planes |
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355 | */ |
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356 | void PseudoColor::setClippingPlanes(vtkPlaneCollection *planes) |
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357 | { |
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358 | if (_dsMapper != NULL) { |
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359 | _dsMapper->SetClippingPlanes(planes); |
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360 | } |
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361 | } |
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