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 <cstdlib> |
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9 | #include <ctime> |
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10 | #include <cfloat> |
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11 | #include <cmath> |
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12 | #include <cstring> |
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13 | |
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14 | #include <vtkMath.h> |
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15 | #include <vtkActor.h> |
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16 | #include <vtkProperty.h> |
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17 | #include <vtkPoints.h> |
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18 | #include <vtkCellArray.h> |
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19 | #include <vtkPolyLine.h> |
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20 | #include <vtkRegularPolygonSource.h> |
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21 | #include <vtkPointData.h> |
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22 | #include <vtkCellData.h> |
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23 | #include <vtkCellDataToPointData.h> |
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24 | #include <vtkPolygon.h> |
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25 | #include <vtkPolyData.h> |
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26 | #include <vtkTubeFilter.h> |
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27 | #include <vtkRibbonFilter.h> |
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28 | #include <vtkTransform.h> |
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29 | #include <vtkTransformPolyDataFilter.h> |
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30 | #include <vtkVertexGlyphFilter.h> |
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31 | |
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32 | #include "RpStreamlines.h" |
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33 | #include "RpVtkRenderer.h" |
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34 | #include "Trace.h" |
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35 | |
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36 | using namespace Rappture::VtkVis; |
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37 | |
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38 | Streamlines::Streamlines() : |
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39 | VtkGraphicsObject(), |
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40 | _lineType(LINES), |
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41 | _colorMap(NULL), |
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42 | _colorMode(COLOR_BY_VECTOR_MAGNITUDE), |
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43 | _colorFieldType(DataSet::POINT_DATA), |
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44 | _seedVisible(true), |
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45 | _renderer(NULL), |
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46 | _dataScale(1) |
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47 | { |
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48 | _faceCulling = true; |
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49 | _color[0] = 1.0f; |
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50 | _color[1] = 1.0f; |
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51 | _color[2] = 1.0f; |
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52 | _seedColor[0] = 1.0f; |
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53 | _seedColor[1] = 1.0f; |
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54 | _seedColor[2] = 1.0f; |
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55 | _colorFieldRange[0] = DBL_MAX; |
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56 | _colorFieldRange[1] = -DBL_MAX; |
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57 | vtkMath::RandomSeed((int)time(NULL)); |
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58 | srand((unsigned int)time(NULL)); |
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59 | } |
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60 | |
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61 | Streamlines::~Streamlines() |
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62 | { |
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63 | #ifdef WANT_TRACE |
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64 | if (_dataSet != NULL) |
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65 | TRACE("Deleting Streamlines for %s", _dataSet->getName().c_str()); |
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66 | else |
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67 | TRACE("Deleting Streamlines with NULL DataSet"); |
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68 | #endif |
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69 | } |
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70 | |
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71 | void Streamlines::setDataSet(DataSet *dataSet, |
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72 | Renderer *renderer) |
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73 | { |
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74 | if (_dataSet != dataSet) { |
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75 | _dataSet = dataSet; |
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76 | |
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77 | _renderer = renderer; |
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78 | |
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79 | if (renderer->getUseCumulativeRange()) { |
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80 | renderer->getCumulativeDataRange(_dataRange, |
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81 | _dataSet->getActiveScalarsName(), |
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82 | 1); |
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83 | renderer->getCumulativeDataRange(_vectorMagnitudeRange, |
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84 | _dataSet->getActiveVectorsName(), |
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85 | 3); |
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86 | for (int i = 0; i < 3; i++) { |
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87 | renderer->getCumulativeDataRange(_vectorComponentRange[i], |
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88 | _dataSet->getActiveVectorsName(), |
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89 | 3, i); |
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90 | } |
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91 | } else { |
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92 | _dataSet->getScalarRange(_dataRange); |
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93 | _dataSet->getVectorRange(_vectorMagnitudeRange); |
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94 | for (int i = 0; i < 3; i++) { |
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95 | _dataSet->getVectorRange(_vectorComponentRange[i], i); |
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96 | } |
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97 | } |
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98 | |
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99 | update(); |
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100 | } |
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101 | } |
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102 | |
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103 | /** |
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104 | * \brief Create and initialize a VTK Prop to render Streamlines |
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105 | */ |
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106 | void Streamlines::initProp() |
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107 | { |
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108 | if (_linesActor == NULL) { |
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109 | _linesActor = vtkSmartPointer<vtkActor>::New(); |
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110 | _linesActor->GetProperty()->SetColor(_color[0], _color[1], _color[2]); |
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111 | _linesActor->GetProperty()->SetEdgeColor(_edgeColor[0], _edgeColor[1], _edgeColor[2]); |
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112 | _linesActor->GetProperty()->SetLineWidth(_edgeWidth); |
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113 | _linesActor->GetProperty()->SetOpacity(_opacity); |
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114 | _linesActor->GetProperty()->SetAmbient(.2); |
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115 | if (!_lighting) |
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116 | _linesActor->GetProperty()->LightingOff(); |
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117 | switch (_lineType) { |
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118 | case LINES: |
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119 | setCulling(_linesActor->GetProperty(), false); |
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120 | _linesActor->GetProperty()->SetRepresentationToWireframe(); |
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121 | _linesActor->GetProperty()->EdgeVisibilityOff(); |
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122 | break; |
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123 | case TUBES: |
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124 | if (_faceCulling && _opacity == 1.0) |
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125 | setCulling(_linesActor->GetProperty(), true); |
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126 | _linesActor->GetProperty()->SetRepresentationToSurface(); |
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127 | _linesActor->GetProperty()->EdgeVisibilityOff(); |
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128 | break; |
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129 | case RIBBONS: |
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130 | setCulling(_linesActor->GetProperty(), false); |
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131 | _linesActor->GetProperty()->SetRepresentationToSurface(); |
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132 | _linesActor->GetProperty()->EdgeVisibilityOff(); |
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133 | break; |
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134 | default: |
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135 | ; |
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136 | } |
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137 | } |
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138 | if (_seedActor == NULL) { |
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139 | _seedActor = vtkSmartPointer<vtkActor>::New(); |
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140 | _seedActor->GetProperty()->SetColor(_seedColor[0], _seedColor[1], _seedColor[2]); |
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141 | _seedActor->GetProperty()->SetEdgeColor(_seedColor[0], _seedColor[1], _seedColor[2]); |
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142 | _seedActor->GetProperty()->SetLineWidth(1); |
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143 | _seedActor->GetProperty()->SetPointSize(2); |
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144 | _seedActor->GetProperty()->SetOpacity(_opacity); |
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145 | _seedActor->GetProperty()->SetRepresentationToWireframe(); |
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146 | _seedActor->GetProperty()->LightingOff(); |
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147 | setSeedVisibility(_seedVisible); |
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148 | } |
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149 | if (_prop == NULL) { |
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150 | _prop = vtkSmartPointer<vtkAssembly>::New(); |
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151 | getAssembly()->AddPart(_linesActor); |
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152 | getAssembly()->AddPart(_seedActor); |
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153 | } |
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154 | } |
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155 | |
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156 | /** |
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157 | * \brief Get a pseudo-random number in range [min,max] |
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158 | */ |
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159 | double Streamlines::getRandomNum(double min, double max) |
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160 | { |
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161 | #if 1 |
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162 | return vtkMath::Random(min, max); |
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163 | #else |
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164 | int r = rand(); |
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165 | return (min + ((double)r / RAND_MAX) * (max - min)); |
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166 | #endif |
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167 | } |
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168 | |
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169 | /** |
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170 | * \brief Get a random 3D point within an AABB |
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171 | * |
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172 | * \param[out] pt The random point |
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173 | * \param[in] bounds The bounds of the AABB |
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174 | */ |
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175 | void Streamlines::getRandomPoint(double pt[3], const double bounds[6]) |
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176 | { |
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177 | pt[0] = getRandomNum(bounds[0], bounds[1]); |
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178 | pt[1] = getRandomNum(bounds[2], bounds[3]); |
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179 | pt[2] = getRandomNum(bounds[4], bounds[5]); |
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180 | } |
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181 | |
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182 | /** |
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183 | * \brief Get a random point within a triangle (including edges) |
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184 | * |
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185 | * \param[out] pt The random point |
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186 | * \param[in] v1 Triangle vertex 1 |
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187 | * \param[in] v2 Triangle vertex 2 |
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188 | * \param[in] v3 Triangle vertex 3 |
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189 | */ |
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190 | void Streamlines::getRandomPointInTriangle(double pt[3], |
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191 | const double v0[3], |
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192 | const double v1[3], |
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193 | const double v2[3]) |
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194 | { |
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195 | // Choose random barycentric coordinates |
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196 | double bary[3]; |
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197 | bary[0] = getRandomNum(0, 1); |
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198 | bary[1] = getRandomNum(0, 1); |
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199 | if (bary[0] + bary[1] > 1.0) { |
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200 | bary[0] = 1.0 - bary[0]; |
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201 | bary[1] = 1.0 - bary[1]; |
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202 | } |
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203 | bary[2] = 1.0 - bary[0] - bary[1]; |
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204 | |
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205 | //TRACE("bary %g %g %g", bary[0], bary[1], bary[2]); |
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206 | // Convert to cartesian coords |
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207 | for (int i = 0; i < 3; i++) { |
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208 | pt[i] = v0[i] * bary[0] + v1[i] * bary[1] + v2[i] * bary[2]; |
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209 | } |
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210 | } |
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211 | |
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212 | void Streamlines::getRandomPointInTetrahedron(double pt[3], |
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213 | const double v0[3], |
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214 | const double v1[3], |
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215 | const double v2[3], |
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216 | const double v3[3]) |
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217 | { |
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218 | // Choose random barycentric coordinates |
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219 | double bary[4]; |
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220 | bary[0] = getRandomNum(0, 1); |
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221 | bary[1] = getRandomNum(0, 1); |
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222 | bary[2] = getRandomNum(0, 1); |
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223 | if (bary[0] + bary[1] > 1.0) { |
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224 | bary[0] = 1.0 - bary[0]; |
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225 | bary[1] = 1.0 - bary[1]; |
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226 | } |
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227 | if (bary[1] + bary[2] > 1.0) { |
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228 | double tmp = bary[2]; |
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229 | bary[2] = 1.0 - bary[0] - bary[1]; |
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230 | bary[1] = 1.0 - tmp; |
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231 | } else if (bary[0] + bary[1] + bary[2] > 1.0) { |
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232 | double tmp = bary[2]; |
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233 | bary[2] = bary[0] + bary[1] + bary[2] - 1.0; |
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234 | bary[0] = 1.0 - bary[1] - tmp; |
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235 | } |
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236 | bary[3] = 1.0 - bary[0] - bary[1] - bary[2]; |
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237 | //TRACE("bary %g %g %g %g", bary[0], bary[1], bary[2], bary[3]); |
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238 | // Convert to cartesian coords |
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239 | for (int i = 0; i < 3; i++) { |
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240 | #if 0 |
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241 | pt[i] = (v0[i] - v3[i]) * bary[0] + |
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242 | (v1[i] - v3[i]) * bary[1] + |
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243 | (v2[i] - v3[i]) * bary[2] + v3[i]; |
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244 | #else |
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245 | pt[i] = v0[i] * bary[0] + v1[i] * bary[1] + |
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246 | v2[i] * bary[2] + v3[i] * bary[3]; |
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247 | #endif |
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248 | } |
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249 | } |
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250 | |
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251 | /** |
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252 | * \brief Get a random point on a line segment (including endpoints) |
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253 | */ |
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254 | void Streamlines::getRandomPointOnLineSegment(double pt[3], |
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255 | const double endpt[3], |
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256 | const double endpt2[3]) |
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257 | { |
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258 | double ratio = getRandomNum(0, 1); |
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259 | pt[0] = endpt[0] + ratio * (endpt2[0] - endpt[0]); |
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260 | pt[1] = endpt[1] + ratio * (endpt2[1] - endpt[1]); |
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261 | pt[2] = endpt[2] + ratio * (endpt2[2] - endpt[2]); |
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262 | } |
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263 | |
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264 | /** |
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265 | * \brief Get a random point within a vtkDataSet's mesh |
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266 | * |
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267 | * Note: This currently doesn't always give a uniform distribution |
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268 | * of points in space and can generate points outside the mesh for |
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269 | * unusual cell types |
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270 | */ |
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271 | void Streamlines::getRandomCellPt(double pt[3], vtkDataSet *ds) |
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272 | { |
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273 | int numCells = (int)ds->GetNumberOfCells(); |
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274 | // XXX: Not uniform distribution (shouldn't use mod, and assumes |
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275 | // all cells are equal area/volume) |
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276 | int cell = rand() % numCells; |
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277 | int type = ds->GetCellType(cell); |
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278 | switch (type) { |
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279 | case VTK_VERTEX: { |
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280 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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281 | ds->GetCellPoints(cell, ptIds); |
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282 | assert(ptIds->GetNumberOfIds() == 1); |
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283 | ds->GetPoint(ptIds->GetId(0), pt); |
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284 | } |
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285 | break; |
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286 | case VTK_POLY_VERTEX: { |
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287 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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288 | ds->GetCellPoints(cell, ptIds); |
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289 | assert(ptIds->GetNumberOfIds() >= 1); |
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290 | int id = rand() % ptIds->GetNumberOfIds(); |
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291 | ds->GetPoint(ptIds->GetId(id), pt); |
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292 | } |
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293 | break; |
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294 | case VTK_LINE: { |
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295 | double v[2][3]; |
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296 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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297 | ds->GetCellPoints(cell, ptIds); |
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298 | assert(ptIds->GetNumberOfIds() == 2); |
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299 | for (int i = 0; i < 2; i++) { |
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300 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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301 | } |
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302 | getRandomPointOnLineSegment(pt, v[0], v[1]); |
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303 | } |
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304 | break; |
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305 | case VTK_POLY_LINE: { |
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306 | double v[2][3]; |
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307 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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308 | ds->GetCellPoints(cell, ptIds); |
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309 | assert(ptIds->GetNumberOfIds() >= 2); |
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310 | int id = rand() % (ptIds->GetNumberOfIds()-1); |
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311 | for (int i = 0; i < 2; i++) { |
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312 | ds->GetPoint(ptIds->GetId(id+i), v[i]); |
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313 | } |
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314 | getRandomPointOnLineSegment(pt, v[0], v[1]); |
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315 | } |
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316 | break; |
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317 | case VTK_TRIANGLE: { |
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318 | double v[3][3]; |
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319 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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320 | ds->GetCellPoints(cell, ptIds); |
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321 | assert(ptIds->GetNumberOfIds() == 3); |
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322 | for (int i = 0; i < 3; i++) { |
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323 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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324 | } |
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325 | getRandomPointInTriangle(pt, v[0], v[1], v[2]); |
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326 | } |
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327 | break; |
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328 | case VTK_TRIANGLE_STRIP: { |
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329 | double v[3][3]; |
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330 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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331 | ds->GetCellPoints(cell, ptIds); |
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332 | assert(ptIds->GetNumberOfIds() >= 3); |
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333 | int id = rand() % (ptIds->GetNumberOfIds()-2); |
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334 | for (int i = 0; i < 3; i++) { |
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335 | ds->GetPoint(ptIds->GetId(id+i), v[i]); |
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336 | } |
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337 | getRandomPointInTriangle(pt, v[0], v[1], v[2]); |
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338 | } |
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339 | break; |
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340 | case VTK_POLYGON: { |
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341 | vtkPolygon *poly = vtkPolygon::SafeDownCast(ds->GetCell(cell)); |
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342 | assert (poly != NULL); |
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343 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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344 | poly->Triangulate(ptIds); |
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345 | assert(ptIds->GetNumberOfIds() >= 3 && ptIds->GetNumberOfIds() % 3 == 0); |
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346 | int tri = rand() % (ptIds->GetNumberOfIds()/3); |
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347 | double v[3][3]; |
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348 | for (int i = 0; i < 3; i++) { |
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349 | ds->GetPoint(ptIds->GetId(i + tri * 3), v[i]); |
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350 | } |
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351 | getRandomPointInTriangle(pt, v[0], v[1], v[2]); |
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352 | } |
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353 | break; |
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354 | case VTK_QUAD: { |
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355 | double v[4][3]; |
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356 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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357 | ds->GetCellPoints(cell, ptIds); |
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358 | assert(ptIds->GetNumberOfIds() == 4); |
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359 | for (int i = 0; i < 4; i++) { |
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360 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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361 | } |
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362 | int tri = rand() & 0x1; |
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363 | if (tri) { |
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364 | getRandomPointInTriangle(pt, v[0], v[1], v[2]); |
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365 | } else { |
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366 | getRandomPointInTriangle(pt, v[0], v[2], v[3]); |
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367 | } |
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368 | } |
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369 | break; |
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370 | case VTK_TETRA: { |
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371 | double v[4][3]; |
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372 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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373 | ds->GetCellPoints(cell, ptIds); |
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374 | assert(ptIds->GetNumberOfIds() == 4); |
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375 | for (int i = 0; i < 4; i++) { |
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376 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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377 | } |
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378 | getRandomPointInTetrahedron(pt, v[0], v[1], v[2], v[3]); |
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379 | } |
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380 | break; |
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381 | case VTK_WEDGE: { |
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382 | double v[6][3]; |
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383 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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384 | ds->GetCellPoints(cell, ptIds); |
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385 | assert(ptIds->GetNumberOfIds() == 6); |
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386 | for (int i = 0; i < 6; i++) { |
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387 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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388 | } |
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389 | double vv[3][3]; |
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390 | getRandomPointOnLineSegment(vv[0], v[0], v[3]); |
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391 | getRandomPointOnLineSegment(vv[1], v[1], v[4]); |
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392 | getRandomPointOnLineSegment(vv[2], v[2], v[5]); |
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393 | getRandomPointInTriangle(pt, vv[0], vv[1], vv[2]); |
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394 | } |
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395 | break; |
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396 | case VTK_PYRAMID: { |
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397 | double v[5][3]; |
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398 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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399 | ds->GetCellPoints(cell, ptIds); |
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400 | assert(ptIds->GetNumberOfIds() == 5); |
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401 | for (int i = 0; i < 5; i++) { |
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402 | ds->GetPoint(ptIds->GetId(i), v[i]); |
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403 | } |
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404 | int tetra = rand() & 0x1; |
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405 | if (tetra) { |
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406 | getRandomPointInTetrahedron(pt, v[0], v[1], v[2], v[4]); |
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407 | } else { |
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408 | getRandomPointInTetrahedron(pt, v[0], v[2], v[3], v[4]); |
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409 | } |
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410 | } |
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411 | break; |
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412 | case VTK_PIXEL: |
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413 | case VTK_VOXEL: { |
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414 | double bounds[6]; |
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415 | ds->GetCellBounds(cell, bounds); |
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416 | getRandomPoint(pt, bounds); |
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417 | } |
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418 | break; |
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419 | default: { |
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420 | vtkSmartPointer<vtkIdList> ptIds = vtkSmartPointer<vtkIdList>::New(); |
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421 | vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New(); |
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422 | ds->GetCell(cell)->Triangulate(0, ptIds, pts); |
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423 | if (ptIds->GetNumberOfIds() % 4 == 0) { |
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424 | int tetra = rand() % (ptIds->GetNumberOfIds()/4); |
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425 | double v[4][3]; |
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426 | for (int i = 0; i < 4; i++) { |
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427 | ds->GetPoint(ptIds->GetId(i + tetra * 4), v[i]); |
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428 | } |
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429 | getRandomPointInTetrahedron(pt, v[0], v[1], v[2], v[4]); |
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430 | } else { |
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431 | assert(ptIds->GetNumberOfIds() % 3 == 0); |
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432 | int tri = rand() % (ptIds->GetNumberOfIds()/3); |
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433 | double v[3][3]; |
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434 | for (int i = 0; i < 3; i++) { |
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435 | ds->GetPoint(ptIds->GetId(i + tri * 3), v[i]); |
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436 | } |
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437 | getRandomPointInTriangle(pt, v[0], v[1], v[2]); |
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438 | } |
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439 | } |
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440 | } |
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441 | } |
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442 | |
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443 | /** |
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444 | * \brief Internal method to set up pipeline after a state change |
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445 | */ |
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446 | void Streamlines::update() |
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447 | { |
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448 | if (_dataSet == NULL) { |
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449 | return; |
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450 | } |
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451 | |
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452 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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453 | |
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454 | double bounds[6]; |
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455 | _dataSet->getBounds(bounds); |
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456 | double xLen = bounds[1] - bounds[0]; |
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457 | double yLen = bounds[3] - bounds[2]; |
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458 | double zLen = bounds[5] - bounds[4]; |
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459 | double maxBound = 0.0; |
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460 | if (xLen > maxBound) { |
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461 | maxBound = xLen; |
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462 | } |
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463 | if (yLen > maxBound) { |
---|
464 | maxBound = yLen; |
---|
465 | } |
---|
466 | if (zLen > maxBound) { |
---|
467 | maxBound = zLen; |
---|
468 | } |
---|
469 | |
---|
470 | double cellSizeRange[2]; |
---|
471 | double avgSize; |
---|
472 | _dataSet->getCellSizeRange(cellSizeRange, &avgSize); |
---|
473 | _dataScale = avgSize / 8.; |
---|
474 | |
---|
475 | vtkSmartPointer<vtkCellDataToPointData> cellToPtData; |
---|
476 | |
---|
477 | if (ds->GetPointData() == NULL || |
---|
478 | ds->GetPointData()->GetVectors() == NULL) { |
---|
479 | TRACE("No vector point data found in DataSet %s", _dataSet->getName().c_str()); |
---|
480 | if (ds->GetCellData() == NULL || |
---|
481 | ds->GetCellData()->GetVectors() == NULL) { |
---|
482 | ERROR("No vectors found in DataSet %s", _dataSet->getName().c_str()); |
---|
483 | } else { |
---|
484 | cellToPtData = |
---|
485 | vtkSmartPointer<vtkCellDataToPointData>::New(); |
---|
486 | cellToPtData->SetInput(ds); |
---|
487 | //cellToPtData->PassCellDataOn(); |
---|
488 | cellToPtData->Update(); |
---|
489 | ds = cellToPtData->GetOutput(); |
---|
490 | } |
---|
491 | } |
---|
492 | |
---|
493 | if (_streamTracer == NULL) { |
---|
494 | _streamTracer = vtkSmartPointer<vtkStreamTracer>::New(); |
---|
495 | } |
---|
496 | |
---|
497 | _streamTracer->SetInput(ds); |
---|
498 | _streamTracer->SetMaximumPropagation(xLen + yLen + zLen); |
---|
499 | _streamTracer->SetIntegratorTypeToRungeKutta45(); |
---|
500 | |
---|
501 | TRACE("Setting streamlines max length to %g", |
---|
502 | _streamTracer->GetMaximumPropagation()); |
---|
503 | |
---|
504 | if (_pdMapper == NULL) { |
---|
505 | _pdMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); |
---|
506 | _pdMapper->SetResolveCoincidentTopologyToPolygonOffset(); |
---|
507 | _pdMapper->ScalarVisibilityOn(); |
---|
508 | } |
---|
509 | if (_seedMapper == NULL) { |
---|
510 | _seedMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); |
---|
511 | _seedMapper->SetResolveCoincidentTopologyToPolygonOffset(); |
---|
512 | _seedMapper->ScalarVisibilityOff(); |
---|
513 | } |
---|
514 | |
---|
515 | // Set up seed source object |
---|
516 | setSeedToFilledMesh(200); |
---|
517 | |
---|
518 | switch (_lineType) { |
---|
519 | case LINES: { |
---|
520 | _streamTracer->SetComputeVorticity(false); |
---|
521 | _pdMapper->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
522 | } |
---|
523 | break; |
---|
524 | case TUBES: { |
---|
525 | _streamTracer->SetComputeVorticity(true); |
---|
526 | _lineFilter = vtkSmartPointer<vtkTubeFilter>::New(); |
---|
527 | vtkTubeFilter *tubeFilter = vtkTubeFilter::SafeDownCast(_lineFilter); |
---|
528 | tubeFilter->SetNumberOfSides(5); |
---|
529 | _lineFilter->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
530 | _pdMapper->SetInputConnection(_lineFilter->GetOutputPort()); |
---|
531 | } |
---|
532 | break; |
---|
533 | case RIBBONS: { |
---|
534 | _streamTracer->SetComputeVorticity(true); |
---|
535 | _lineFilter = vtkSmartPointer<vtkRibbonFilter>::New(); |
---|
536 | _lineFilter->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
537 | _pdMapper->SetInputConnection(_lineFilter->GetOutputPort()); |
---|
538 | } |
---|
539 | break; |
---|
540 | default: |
---|
541 | ERROR("Unknown LineType: %d", _lineType); |
---|
542 | } |
---|
543 | |
---|
544 | #if defined(DEBUG) && defined(WANT_TRACE) |
---|
545 | _streamTracer->Update(); |
---|
546 | vtkPolyData *pd = _streamTracer->GetOutput(); |
---|
547 | TRACE("Verts: %d Lines: %d Polys: %d Strips: %d", |
---|
548 | pd->GetNumberOfVerts(), |
---|
549 | pd->GetNumberOfLines(), |
---|
550 | pd->GetNumberOfPolys(), |
---|
551 | pd->GetNumberOfStrips()); |
---|
552 | #endif |
---|
553 | |
---|
554 | initProp(); |
---|
555 | |
---|
556 | _seedActor->SetMapper(_seedMapper); |
---|
557 | |
---|
558 | if (_lut == NULL) { |
---|
559 | setColorMap(ColorMap::getDefault()); |
---|
560 | } |
---|
561 | |
---|
562 | setColorMode(_colorMode); |
---|
563 | |
---|
564 | _linesActor->SetMapper(_pdMapper); |
---|
565 | _pdMapper->Update(); |
---|
566 | _seedMapper->Update(); |
---|
567 | } |
---|
568 | |
---|
569 | void Streamlines::setNumberOfSeedPoints(int numPoints) |
---|
570 | { |
---|
571 | switch(_seedType) { |
---|
572 | case DATASET_FILLED_MESH: |
---|
573 | setSeedToFilledMesh(numPoints); |
---|
574 | break; |
---|
575 | case FILLED_MESH: |
---|
576 | if (_seedMesh != NULL) { |
---|
577 | setSeedToFilledMesh(_seedMesh, numPoints); |
---|
578 | } else { |
---|
579 | ERROR("NULL _seedMesh"); |
---|
580 | } |
---|
581 | break; |
---|
582 | default: |
---|
583 | ERROR("Can't set number of points for seed type %d", _seedType); |
---|
584 | break; |
---|
585 | } |
---|
586 | } |
---|
587 | |
---|
588 | /** |
---|
589 | * \brief Use points of the DataSet associated with this |
---|
590 | * Streamlines as seeds |
---|
591 | */ |
---|
592 | void Streamlines::setSeedToMeshPoints() |
---|
593 | { |
---|
594 | _seedType = DATASET_MESH_POINTS; |
---|
595 | setSeedToMeshPoints(_dataSet->getVtkDataSet()); |
---|
596 | } |
---|
597 | |
---|
598 | /** |
---|
599 | * \brief Use seed points randomly distributed within the cells |
---|
600 | * of the DataSet associated with this Streamlines |
---|
601 | * |
---|
602 | * Note: The current implementation doesn't give a uniform |
---|
603 | * distribution of points, and points outside the mesh bounds |
---|
604 | * may be generated |
---|
605 | * |
---|
606 | * \param[in] numPoints Number of random seed points to generate |
---|
607 | */ |
---|
608 | void Streamlines::setSeedToFilledMesh(int numPoints) |
---|
609 | { |
---|
610 | _seedType = DATASET_FILLED_MESH; |
---|
611 | setSeedToFilledMesh(_dataSet->getVtkDataSet(), numPoints); |
---|
612 | } |
---|
613 | |
---|
614 | /** |
---|
615 | * \brief Use points of a supplied vtkDataSet as seeds |
---|
616 | * |
---|
617 | * \param[in] seed vtkDataSet with points to use as seeds |
---|
618 | */ |
---|
619 | void Streamlines::setSeedToMeshPoints(vtkDataSet *seed) |
---|
620 | { |
---|
621 | if (seed != _dataSet->getVtkDataSet()) { |
---|
622 | _seedType = MESH_POINTS; |
---|
623 | } |
---|
624 | _seedMesh = NULL; |
---|
625 | if (_streamTracer != NULL) { |
---|
626 | TRACE("Seed points: %d", seed->GetNumberOfPoints()); |
---|
627 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
628 | if (_streamTracer->GetSource() != NULL) { |
---|
629 | oldSeed = _streamTracer->GetSource(); |
---|
630 | } |
---|
631 | |
---|
632 | _streamTracer->SetSource(seed); |
---|
633 | if (oldSeed != NULL) { |
---|
634 | oldSeed->SetPipelineInformation(NULL); |
---|
635 | } |
---|
636 | |
---|
637 | if (vtkPolyData::SafeDownCast(seed) != NULL) { |
---|
638 | _seedMapper->SetInput(vtkPolyData::SafeDownCast(seed)); |
---|
639 | } else { |
---|
640 | vtkSmartPointer<vtkVertexGlyphFilter> vertFilter = vtkSmartPointer<vtkVertexGlyphFilter>::New(); |
---|
641 | vertFilter->SetInput(seed); |
---|
642 | _seedMapper->SetInputConnection(vertFilter->GetOutputPort()); |
---|
643 | } |
---|
644 | } |
---|
645 | } |
---|
646 | |
---|
647 | /** |
---|
648 | * \brief Use seed points randomly distributed within the cells |
---|
649 | * of a supplied vtkDataSet |
---|
650 | * |
---|
651 | * Note: The current implementation doesn't give a uniform |
---|
652 | * distribution of points, and points outside the mesh bounds |
---|
653 | * may be generated |
---|
654 | * |
---|
655 | * \param[in] ds vtkDataSet containing cells |
---|
656 | * \param[in] numPoints Number of random seed points to generate |
---|
657 | */ |
---|
658 | void Streamlines::setSeedToFilledMesh(vtkDataSet *ds, int numPoints) |
---|
659 | { |
---|
660 | if (ds != _dataSet->getVtkDataSet()) { |
---|
661 | _seedMesh = ds; |
---|
662 | _seedType = FILLED_MESH; |
---|
663 | } else { |
---|
664 | _seedMesh = NULL; |
---|
665 | } |
---|
666 | if (_streamTracer != NULL) { |
---|
667 | // Set up seed source object |
---|
668 | vtkSmartPointer<vtkPolyData> seed = vtkSmartPointer<vtkPolyData>::New(); |
---|
669 | vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New(); |
---|
670 | vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New(); |
---|
671 | |
---|
672 | if (ds->GetNumberOfCells() < 1) { |
---|
673 | ERROR("No cells in mesh"); |
---|
674 | } |
---|
675 | |
---|
676 | for (int i = 0; i < numPoints; i++) { |
---|
677 | double pt[3]; |
---|
678 | getRandomCellPt(pt, ds); |
---|
679 | //TRACE("Seed pt: %g %g %g", pt[0], pt[1], pt[2]); |
---|
680 | pts->InsertNextPoint(pt); |
---|
681 | cells->InsertNextCell(1); |
---|
682 | cells->InsertCellPoint(i); |
---|
683 | } |
---|
684 | |
---|
685 | seed->SetPoints(pts); |
---|
686 | seed->SetVerts(cells); |
---|
687 | |
---|
688 | TRACE("Seed points: %d", seed->GetNumberOfPoints()); |
---|
689 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
690 | if (_streamTracer->GetSource() != NULL) { |
---|
691 | oldSeed = _streamTracer->GetSource(); |
---|
692 | } |
---|
693 | |
---|
694 | _streamTracer->SetSource(seed); |
---|
695 | if (oldSeed != NULL) { |
---|
696 | oldSeed->SetPipelineInformation(NULL); |
---|
697 | } |
---|
698 | |
---|
699 | _seedMapper->SetInput(seed); |
---|
700 | } |
---|
701 | } |
---|
702 | |
---|
703 | /** |
---|
704 | * \brief Use seed points along a line |
---|
705 | * |
---|
706 | * \param[in] start Starting point of rake line |
---|
707 | * \param[in] end End point of rake line |
---|
708 | * \param[in] numPoints Number of points along line to generate |
---|
709 | */ |
---|
710 | void Streamlines::setSeedToRake(double start[3], double end[3], int numPoints) |
---|
711 | { |
---|
712 | if (numPoints < 2) |
---|
713 | return; |
---|
714 | _seedType = RAKE; |
---|
715 | _seedMesh = NULL; |
---|
716 | if (_streamTracer != NULL) { |
---|
717 | // Set up seed source object |
---|
718 | vtkSmartPointer<vtkPolyData> seed = vtkSmartPointer<vtkPolyData>::New(); |
---|
719 | vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New(); |
---|
720 | vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New(); |
---|
721 | vtkSmartPointer<vtkPolyLine> polyline = vtkSmartPointer<vtkPolyLine>::New(); |
---|
722 | |
---|
723 | double dir[3]; |
---|
724 | for (int i = 0; i < 3; i++) { |
---|
725 | dir[i] = end[i] - start[i]; |
---|
726 | } |
---|
727 | |
---|
728 | polyline->GetPointIds()->SetNumberOfIds(numPoints); |
---|
729 | for (int i = 0; i < numPoints; i++) { |
---|
730 | double pt[3]; |
---|
731 | for (int ii = 0; ii < 3; ii++) { |
---|
732 | pt[ii] = start[ii] + dir[ii] * ((double)i / (numPoints-1)); |
---|
733 | } |
---|
734 | //TRACE("Seed pt: %g %g %g", pt[0], pt[1], pt[2]); |
---|
735 | pts->InsertNextPoint(pt); |
---|
736 | polyline->GetPointIds()->SetId(i, i); |
---|
737 | } |
---|
738 | |
---|
739 | cells->InsertNextCell(polyline); |
---|
740 | seed->SetPoints(pts); |
---|
741 | seed->SetLines(cells); |
---|
742 | |
---|
743 | TRACE("Seed points: %d", seed->GetNumberOfPoints()); |
---|
744 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
745 | if (_streamTracer->GetSource() != NULL) { |
---|
746 | oldSeed = _streamTracer->GetSource(); |
---|
747 | } |
---|
748 | |
---|
749 | _streamTracer->SetSource(seed); |
---|
750 | if (oldSeed != NULL) { |
---|
751 | oldSeed->SetPipelineInformation(NULL); |
---|
752 | } |
---|
753 | |
---|
754 | _seedMapper->SetInput(seed); |
---|
755 | } |
---|
756 | } |
---|
757 | |
---|
758 | /** |
---|
759 | * \brief Create seed points inside a disk with an optional hole |
---|
760 | * |
---|
761 | * \param[in] center Center point of disk |
---|
762 | * \param[in] normal Normal vector to orient disk |
---|
763 | * \param[in] radius Radius of disk |
---|
764 | * \param[in] innerRadius Radius of hole at center of disk |
---|
765 | * \param[in] numPoints Number of random points to generate |
---|
766 | */ |
---|
767 | void Streamlines::setSeedToDisk(double center[3], |
---|
768 | double normal[3], |
---|
769 | double radius, |
---|
770 | double innerRadius, |
---|
771 | int numPoints) |
---|
772 | { |
---|
773 | _seedType = DISK; |
---|
774 | _seedMesh = NULL; |
---|
775 | if (_streamTracer != NULL) { |
---|
776 | // Set up seed source object |
---|
777 | vtkSmartPointer<vtkPolyData> seed = vtkSmartPointer<vtkPolyData>::New(); |
---|
778 | vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New(); |
---|
779 | vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New(); |
---|
780 | |
---|
781 | // The following code is based on vtkRegularPolygonSource::RequestData |
---|
782 | |
---|
783 | double px[3]; |
---|
784 | double py[3]; |
---|
785 | double axis[3] = {1., 0., 0.}; |
---|
786 | |
---|
787 | if (vtkMath::Normalize(normal) == 0.0) { |
---|
788 | normal[0] = 0.0; |
---|
789 | normal[1] = 0.0; |
---|
790 | normal[2] = 1.0; |
---|
791 | } |
---|
792 | |
---|
793 | // Find axis in plane (orthogonal to normal) |
---|
794 | bool done = false; |
---|
795 | vtkMath::Cross(normal, axis, px); |
---|
796 | if (vtkMath::Normalize(px) > 1.0e-3) { |
---|
797 | done = true; |
---|
798 | } |
---|
799 | if (!done) { |
---|
800 | axis[0] = 0.0; |
---|
801 | axis[1] = 1.0; |
---|
802 | axis[2] = 0.0; |
---|
803 | vtkMath::Cross(normal, axis, px); |
---|
804 | if (vtkMath::Normalize(px) > 1.0e-3) { |
---|
805 | done = true; |
---|
806 | } |
---|
807 | } |
---|
808 | if (!done) { |
---|
809 | axis[0] = 0.0; |
---|
810 | axis[1] = 0.0; |
---|
811 | axis[2] = 1.0; |
---|
812 | vtkMath::Cross(normal, axis, px); |
---|
813 | vtkMath::Normalize(px); |
---|
814 | } |
---|
815 | // Create third orthogonal basis vector |
---|
816 | vtkMath::Cross(px, normal, py); |
---|
817 | |
---|
818 | double minSquared = (innerRadius*innerRadius)/(radius*radius); |
---|
819 | for (int j = 0; j < numPoints; j++) { |
---|
820 | // Get random sweep angle and radius |
---|
821 | double angle = getRandomNum(0, 2.0 * vtkMath::DoublePi()); |
---|
822 | // Need sqrt to get uniform distribution |
---|
823 | double r = sqrt(getRandomNum(minSquared, 1)) * radius; |
---|
824 | double pt[3]; |
---|
825 | for (int i = 0; i < 3; i++) { |
---|
826 | pt[i] = center[i] + r * (px[i] * cos(angle) + py[i] * sin(angle)); |
---|
827 | } |
---|
828 | //TRACE("Seed pt: %g %g %g", pt[0], pt[1], pt[2]); |
---|
829 | pts->InsertNextPoint(pt); |
---|
830 | cells->InsertNextCell(1); |
---|
831 | cells->InsertCellPoint(j); |
---|
832 | } |
---|
833 | |
---|
834 | seed->SetPoints(pts); |
---|
835 | seed->SetVerts(cells); |
---|
836 | |
---|
837 | TRACE("Seed points: %d", seed->GetNumberOfPoints()); |
---|
838 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
839 | if (_streamTracer->GetSource() != NULL) { |
---|
840 | oldSeed = _streamTracer->GetSource(); |
---|
841 | } |
---|
842 | |
---|
843 | _streamTracer->SetSource(seed); |
---|
844 | if (oldSeed != NULL) { |
---|
845 | oldSeed->SetPipelineInformation(NULL); |
---|
846 | } |
---|
847 | |
---|
848 | _seedMapper->SetInput(seed); |
---|
849 | } |
---|
850 | } |
---|
851 | |
---|
852 | /** |
---|
853 | * \brief Use seed points from an n-sided polygon |
---|
854 | * |
---|
855 | * \param[in] center Center point of polygon |
---|
856 | * \param[in] normal Normal vector to orient polygon |
---|
857 | * \param[in] angle Angle in degrees to rotate about normal |
---|
858 | * \param[in] radius Radius of circumscribing circle |
---|
859 | * \param[in] numSides Number of polygon sides (and points) to generate |
---|
860 | */ |
---|
861 | void Streamlines::setSeedToPolygon(double center[3], |
---|
862 | double normal[3], |
---|
863 | double angle, |
---|
864 | double radius, |
---|
865 | int numSides) |
---|
866 | { |
---|
867 | _seedType = POLYGON; |
---|
868 | _seedMesh = NULL; |
---|
869 | if (_streamTracer != NULL) { |
---|
870 | // Set up seed source object |
---|
871 | vtkSmartPointer<vtkRegularPolygonSource> seed = vtkSmartPointer<vtkRegularPolygonSource>::New(); |
---|
872 | |
---|
873 | seed->SetCenter(center); |
---|
874 | seed->SetNormal(normal); |
---|
875 | seed->SetRadius(radius); |
---|
876 | seed->SetNumberOfSides(numSides); |
---|
877 | seed->GeneratePolygonOn(); |
---|
878 | |
---|
879 | if (angle != 0.0) { |
---|
880 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
---|
881 | trans->RotateWXYZ(angle, normal); |
---|
882 | vtkSmartPointer<vtkTransformPolyDataFilter> transFilt = |
---|
883 | vtkSmartPointer<vtkTransformPolyDataFilter>::New(); |
---|
884 | transFilt->SetInputConnection(seed->GetOutputPort()); |
---|
885 | transFilt->SetTransform(trans); |
---|
886 | } |
---|
887 | |
---|
888 | TRACE("Seed points: %d", numSides); |
---|
889 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
890 | if (_streamTracer->GetSource() != NULL) { |
---|
891 | oldSeed = _streamTracer->GetSource(); |
---|
892 | } |
---|
893 | |
---|
894 | if (angle != 0.0) { |
---|
895 | vtkSmartPointer<vtkTransform> trans = vtkSmartPointer<vtkTransform>::New(); |
---|
896 | trans->Translate(+center[0], +center[1], +center[2]); |
---|
897 | trans->RotateWXYZ(angle, normal); |
---|
898 | trans->Translate(-center[0], -center[1], -center[2]); |
---|
899 | vtkSmartPointer<vtkTransformPolyDataFilter> transFilt = |
---|
900 | vtkSmartPointer<vtkTransformPolyDataFilter>::New(); |
---|
901 | transFilt->SetInputConnection(seed->GetOutputPort()); |
---|
902 | transFilt->SetTransform(trans); |
---|
903 | _streamTracer->SetSourceConnection(transFilt->GetOutputPort()); |
---|
904 | _seedMapper->SetInputConnection(transFilt->GetOutputPort()); |
---|
905 | } else { |
---|
906 | _streamTracer->SetSourceConnection(seed->GetOutputPort()); |
---|
907 | _seedMapper->SetInputConnection(seed->GetOutputPort()); |
---|
908 | } |
---|
909 | |
---|
910 | if (oldSeed != NULL) { |
---|
911 | oldSeed->SetPipelineInformation(NULL); |
---|
912 | } |
---|
913 | } |
---|
914 | } |
---|
915 | |
---|
916 | /** |
---|
917 | * \brief Use seed points from an n-sided polygon |
---|
918 | * |
---|
919 | * \param[in] center Center point of polygon |
---|
920 | * \param[in] normal Normal vector to orient polygon |
---|
921 | * \param[in] angle Angle in degrees to rotate about normal |
---|
922 | * \param[in] radius Radius of circumscribing circle |
---|
923 | * \param[in] numSides Number of polygon sides (and points) to generate |
---|
924 | * \param[in] numPoints Number of random points to generate |
---|
925 | */ |
---|
926 | void Streamlines::setSeedToFilledPolygon(double center[3], |
---|
927 | double normal[3], |
---|
928 | double angle, |
---|
929 | double radius, |
---|
930 | int numSides, |
---|
931 | int numPoints) |
---|
932 | { |
---|
933 | _seedType = FILLED_POLYGON; |
---|
934 | _seedMesh = NULL; |
---|
935 | if (_streamTracer != NULL) { |
---|
936 | // Set up seed source object |
---|
937 | vtkSmartPointer<vtkPolyData> seed = vtkSmartPointer<vtkPolyData>::New(); |
---|
938 | vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New(); |
---|
939 | vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New(); |
---|
940 | |
---|
941 | // The following code is based on vtkRegularPolygonSource::RequestData |
---|
942 | |
---|
943 | double px[3]; |
---|
944 | double py[3]; |
---|
945 | double axis[3] = {1., 0., 0.}; |
---|
946 | |
---|
947 | if (vtkMath::Normalize(normal) == 0.0) { |
---|
948 | normal[0] = 0.0; |
---|
949 | normal[1] = 0.0; |
---|
950 | normal[2] = 1.0; |
---|
951 | } |
---|
952 | |
---|
953 | // Find axis in plane (orthogonal to normal) |
---|
954 | bool done = false; |
---|
955 | vtkMath::Cross(normal, axis, px); |
---|
956 | if (vtkMath::Normalize(px) > 1.0e-3) { |
---|
957 | done = true; |
---|
958 | } |
---|
959 | if (!done) { |
---|
960 | axis[0] = 0.0; |
---|
961 | axis[1] = 1.0; |
---|
962 | axis[2] = 0.0; |
---|
963 | vtkMath::Cross(normal, axis, px); |
---|
964 | if (vtkMath::Normalize(px) > 1.0e-3) { |
---|
965 | done = true; |
---|
966 | } |
---|
967 | } |
---|
968 | if (!done) { |
---|
969 | axis[0] = 0.0; |
---|
970 | axis[1] = 0.0; |
---|
971 | axis[2] = 1.0; |
---|
972 | vtkMath::Cross(normal, axis, px); |
---|
973 | vtkMath::Normalize(px); |
---|
974 | } |
---|
975 | // Create third orthogonal basis vector |
---|
976 | vtkMath::Cross(px, normal, py); |
---|
977 | |
---|
978 | double verts[numSides][3]; |
---|
979 | double sliceTheta = 2.0 * vtkMath::DoublePi() / (double)numSides; |
---|
980 | angle = vtkMath::RadiansFromDegrees(angle); |
---|
981 | for (int j = 0; j < numSides; j++) { |
---|
982 | for (int i = 0; i < 3; i++) { |
---|
983 | double theta = sliceTheta * (double)j - angle; |
---|
984 | verts[j][i] = center[i] + radius * (px[i] * cos(theta) + |
---|
985 | py[i] * sin(theta)); |
---|
986 | } |
---|
987 | //TRACE("Vert %d: %g %g %g", j, verts[j][0], verts[j][1], verts[j][2]); |
---|
988 | } |
---|
989 | |
---|
990 | // Note: this gives a uniform distribution because the polygon is regular and |
---|
991 | // the triangular sections have equal area |
---|
992 | if (numSides == 3) { |
---|
993 | for (int j = 0; j < numPoints; j++) { |
---|
994 | double pt[3]; |
---|
995 | getRandomPointInTriangle(pt, verts[0], verts[1], verts[2]); |
---|
996 | //TRACE("Seed pt: %g %g %g", pt[0], pt[1], pt[2]); |
---|
997 | pts->InsertNextPoint(pt); |
---|
998 | cells->InsertNextCell(1); |
---|
999 | cells->InsertCellPoint(j); |
---|
1000 | } |
---|
1001 | } else { |
---|
1002 | for (int j = 0; j < numPoints; j++) { |
---|
1003 | // Get random triangle section |
---|
1004 | int tri = rand() % numSides; |
---|
1005 | double pt[3]; |
---|
1006 | getRandomPointInTriangle(pt, center, verts[tri], verts[(tri+1) % numSides]); |
---|
1007 | //TRACE("Seed pt: %g %g %g", pt[0], pt[1], pt[2]); |
---|
1008 | pts->InsertNextPoint(pt); |
---|
1009 | cells->InsertNextCell(1); |
---|
1010 | cells->InsertCellPoint(j); |
---|
1011 | } |
---|
1012 | } |
---|
1013 | |
---|
1014 | seed->SetPoints(pts); |
---|
1015 | seed->SetVerts(cells); |
---|
1016 | |
---|
1017 | TRACE("Seed points: %d", seed->GetNumberOfPoints()); |
---|
1018 | vtkSmartPointer<vtkDataSet> oldSeed; |
---|
1019 | if (_streamTracer->GetSource() != NULL) { |
---|
1020 | oldSeed = _streamTracer->GetSource(); |
---|
1021 | } |
---|
1022 | |
---|
1023 | _streamTracer->SetSource(seed); |
---|
1024 | if (oldSeed != NULL) { |
---|
1025 | oldSeed->SetPipelineInformation(NULL); |
---|
1026 | } |
---|
1027 | |
---|
1028 | _seedMapper->SetInput(seed); |
---|
1029 | } |
---|
1030 | } |
---|
1031 | |
---|
1032 | /** |
---|
1033 | * \brief Set the integration method used |
---|
1034 | */ |
---|
1035 | void Streamlines::setIntegrator(IntegratorType integrator) |
---|
1036 | { |
---|
1037 | if (_streamTracer != NULL) { |
---|
1038 | switch (integrator) { |
---|
1039 | case RUNGE_KUTTA2: |
---|
1040 | _streamTracer->SetIntegratorTypeToRungeKutta2(); |
---|
1041 | break; |
---|
1042 | case RUNGE_KUTTA4: |
---|
1043 | _streamTracer->SetIntegratorTypeToRungeKutta4(); |
---|
1044 | break; |
---|
1045 | case RUNGE_KUTTA45: |
---|
1046 | _streamTracer->SetIntegratorTypeToRungeKutta45(); |
---|
1047 | break; |
---|
1048 | default: |
---|
1049 | ; |
---|
1050 | } |
---|
1051 | } |
---|
1052 | } |
---|
1053 | |
---|
1054 | /** |
---|
1055 | * \brief Set the direction of integration |
---|
1056 | */ |
---|
1057 | void Streamlines::setIntegrationDirection(IntegrationDirection dir) |
---|
1058 | { |
---|
1059 | if (_streamTracer != NULL) { |
---|
1060 | switch (dir) { |
---|
1061 | case FORWARD: |
---|
1062 | _streamTracer->SetIntegrationDirectionToForward(); |
---|
1063 | break; |
---|
1064 | case BACKWARD: |
---|
1065 | _streamTracer->SetIntegrationDirectionToBackward(); |
---|
1066 | break; |
---|
1067 | case BOTH: |
---|
1068 | _streamTracer->SetIntegrationDirectionToBoth(); |
---|
1069 | break; |
---|
1070 | default: |
---|
1071 | ; |
---|
1072 | } |
---|
1073 | } |
---|
1074 | } |
---|
1075 | |
---|
1076 | /** |
---|
1077 | * \brief Set the step size units. Length units are world |
---|
1078 | * coordinates, and cell units means steps are from cell to |
---|
1079 | * cell. Default is cell units. |
---|
1080 | * |
---|
1081 | * Note: calling this function will not convert existing |
---|
1082 | * initial, minimum or maximum step value settings to the |
---|
1083 | * new units, so this function should be called before |
---|
1084 | * setting step values. |
---|
1085 | */ |
---|
1086 | void Streamlines::setIntegrationStepUnit(StepUnit unit) |
---|
1087 | { |
---|
1088 | if (_streamTracer != NULL) { |
---|
1089 | switch (unit) { |
---|
1090 | case LENGTH_UNIT: |
---|
1091 | _streamTracer->SetIntegrationStepUnit(vtkStreamTracer::LENGTH_UNIT); |
---|
1092 | break; |
---|
1093 | case CELL_LENGTH_UNIT: |
---|
1094 | _streamTracer->SetIntegrationStepUnit(vtkStreamTracer::CELL_LENGTH_UNIT); |
---|
1095 | break; |
---|
1096 | default: |
---|
1097 | ; |
---|
1098 | } |
---|
1099 | } |
---|
1100 | } |
---|
1101 | |
---|
1102 | /** |
---|
1103 | * \brief Set initial step size for adaptive step integrator in |
---|
1104 | * step units (see setIntegrationStepUnit). For non-adaptive |
---|
1105 | * integrators, this is the fixed step size. |
---|
1106 | */ |
---|
1107 | void Streamlines::setInitialIntegrationStep(double step) |
---|
1108 | { |
---|
1109 | if (_streamTracer != NULL) { |
---|
1110 | _streamTracer->SetInitialIntegrationStep(step); |
---|
1111 | } |
---|
1112 | } |
---|
1113 | |
---|
1114 | /** |
---|
1115 | * \brief Set minimum step for adaptive step integrator in |
---|
1116 | * step units (see setIntegrationStepUnit) |
---|
1117 | */ |
---|
1118 | void Streamlines::setMinimumIntegrationStep(double step) |
---|
1119 | { |
---|
1120 | if (_streamTracer != NULL) { |
---|
1121 | _streamTracer->SetMinimumIntegrationStep(step); |
---|
1122 | } |
---|
1123 | } |
---|
1124 | |
---|
1125 | /** |
---|
1126 | * \brief Set maximum step for adaptive step integrator in |
---|
1127 | * step units (see setIntegrationStepUnit) |
---|
1128 | */ |
---|
1129 | void Streamlines::setMaximumIntegrationStep(double step) |
---|
1130 | { |
---|
1131 | if (_streamTracer != NULL) { |
---|
1132 | _streamTracer->SetMaximumIntegrationStep(step); |
---|
1133 | } |
---|
1134 | } |
---|
1135 | |
---|
1136 | /** |
---|
1137 | * \brief Set maximum error tolerance |
---|
1138 | */ |
---|
1139 | void Streamlines::setMaximumError(double error) |
---|
1140 | { |
---|
1141 | if (_streamTracer != NULL) { |
---|
1142 | _streamTracer->SetMaximumError(error); |
---|
1143 | } |
---|
1144 | } |
---|
1145 | |
---|
1146 | /** |
---|
1147 | * \brief Set maximum length of stream lines in world |
---|
1148 | * coordinates |
---|
1149 | */ |
---|
1150 | void Streamlines::setMaxPropagation(double length) |
---|
1151 | { |
---|
1152 | if (_streamTracer != NULL) { |
---|
1153 | _streamTracer->SetMaximumPropagation(length); |
---|
1154 | } |
---|
1155 | } |
---|
1156 | |
---|
1157 | /** |
---|
1158 | * \brief Set maximum number of integration steps |
---|
1159 | */ |
---|
1160 | void Streamlines::setMaxNumberOfSteps(int steps) |
---|
1161 | { |
---|
1162 | if (_streamTracer != NULL) { |
---|
1163 | _streamTracer->SetMaximumNumberOfSteps(steps); |
---|
1164 | } |
---|
1165 | } |
---|
1166 | |
---|
1167 | /** |
---|
1168 | * \brief Set the minimum speed before integration stops |
---|
1169 | */ |
---|
1170 | void Streamlines::setTerminalSpeed(double speed) |
---|
1171 | { |
---|
1172 | if (_streamTracer != NULL) { |
---|
1173 | _streamTracer->SetTerminalSpeed(speed); |
---|
1174 | } |
---|
1175 | } |
---|
1176 | |
---|
1177 | /** |
---|
1178 | * \brief Set streamline type to polylines |
---|
1179 | */ |
---|
1180 | void Streamlines::setLineTypeToLines() |
---|
1181 | { |
---|
1182 | _lineType = LINES; |
---|
1183 | if (_streamTracer != NULL && |
---|
1184 | _pdMapper != NULL) { |
---|
1185 | _streamTracer->SetComputeVorticity(false); |
---|
1186 | _pdMapper->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
1187 | _lineFilter = NULL; |
---|
1188 | setCulling(_linesActor->GetProperty(), false); |
---|
1189 | _linesActor->GetProperty()->SetRepresentationToWireframe(); |
---|
1190 | _linesActor->GetProperty()->LightingOff(); |
---|
1191 | } |
---|
1192 | } |
---|
1193 | |
---|
1194 | /** |
---|
1195 | * \brief Set streamline type to 3D tubes |
---|
1196 | * |
---|
1197 | * \param[in] numSides Number of sides (>=3) for tubes |
---|
1198 | * \param[in] radius World coordinate minimum tube radius |
---|
1199 | */ |
---|
1200 | void Streamlines::setLineTypeToTubes(int numSides, double radius) |
---|
1201 | { |
---|
1202 | _lineType = TUBES; |
---|
1203 | if (_streamTracer != NULL) { |
---|
1204 | _streamTracer->SetComputeVorticity(true); |
---|
1205 | if (vtkTubeFilter::SafeDownCast(_lineFilter) == NULL) { |
---|
1206 | _lineFilter = vtkSmartPointer<vtkTubeFilter>::New(); |
---|
1207 | _lineFilter->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
1208 | } |
---|
1209 | vtkTubeFilter *tubeFilter = vtkTubeFilter::SafeDownCast(_lineFilter); |
---|
1210 | if (numSides < 3) |
---|
1211 | numSides = 3; |
---|
1212 | tubeFilter->SetNumberOfSides(numSides); |
---|
1213 | tubeFilter->SetRadius(_dataScale * radius); |
---|
1214 | _pdMapper->SetInputConnection(_lineFilter->GetOutputPort()); |
---|
1215 | if (_faceCulling && _opacity == 1.0) |
---|
1216 | setCulling(_linesActor->GetProperty(), true); |
---|
1217 | _linesActor->GetProperty()->SetRepresentationToSurface(); |
---|
1218 | _linesActor->GetProperty()->LightingOn(); |
---|
1219 | } |
---|
1220 | } |
---|
1221 | |
---|
1222 | /** |
---|
1223 | * \brief Set streamline type to 3D ribbons |
---|
1224 | * |
---|
1225 | * \param[in] width Minimum half-width of ribbons |
---|
1226 | * \param[in] angle Default ribbon angle in degrees from normal |
---|
1227 | */ |
---|
1228 | void Streamlines::setLineTypeToRibbons(double width, double angle) |
---|
1229 | { |
---|
1230 | _lineType = RIBBONS; |
---|
1231 | if (_streamTracer != NULL) { |
---|
1232 | _streamTracer->SetComputeVorticity(true); |
---|
1233 | if (vtkRibbonFilter::SafeDownCast(_lineFilter) == NULL) { |
---|
1234 | _lineFilter = vtkSmartPointer<vtkRibbonFilter>::New(); |
---|
1235 | _lineFilter->SetInputConnection(_streamTracer->GetOutputPort()); |
---|
1236 | } |
---|
1237 | vtkRibbonFilter *ribbonFilter = vtkRibbonFilter::SafeDownCast(_lineFilter); |
---|
1238 | ribbonFilter->SetWidth(_dataScale * width); |
---|
1239 | ribbonFilter->SetAngle(angle); |
---|
1240 | ribbonFilter->UseDefaultNormalOn(); |
---|
1241 | _pdMapper->SetInputConnection(_lineFilter->GetOutputPort()); |
---|
1242 | setCulling(_linesActor->GetProperty(), false); |
---|
1243 | _linesActor->GetProperty()->SetRepresentationToSurface(); |
---|
1244 | _linesActor->GetProperty()->LightingOn(); |
---|
1245 | } |
---|
1246 | } |
---|
1247 | |
---|
1248 | void Streamlines::updateRanges(Renderer *renderer) |
---|
1249 | { |
---|
1250 | if (_dataSet == NULL) { |
---|
1251 | ERROR("called before setDataSet"); |
---|
1252 | return; |
---|
1253 | } |
---|
1254 | |
---|
1255 | if (renderer->getUseCumulativeRange()) { |
---|
1256 | renderer->getCumulativeDataRange(_dataRange, |
---|
1257 | _dataSet->getActiveScalarsName(), |
---|
1258 | 1); |
---|
1259 | renderer->getCumulativeDataRange(_vectorMagnitudeRange, |
---|
1260 | _dataSet->getActiveVectorsName(), |
---|
1261 | 3); |
---|
1262 | for (int i = 0; i < 3; i++) { |
---|
1263 | renderer->getCumulativeDataRange(_vectorComponentRange[i], |
---|
1264 | _dataSet->getActiveVectorsName(), |
---|
1265 | 3, i); |
---|
1266 | } |
---|
1267 | } else { |
---|
1268 | _dataSet->getScalarRange(_dataRange); |
---|
1269 | _dataSet->getVectorRange(_vectorMagnitudeRange); |
---|
1270 | for (int i = 0; i < 3; i++) { |
---|
1271 | _dataSet->getVectorRange(_vectorComponentRange[i], i); |
---|
1272 | } |
---|
1273 | } |
---|
1274 | |
---|
1275 | // Need to update color map ranges and/or active vector field |
---|
1276 | double *rangePtr = _colorFieldRange; |
---|
1277 | if (_colorFieldRange[0] > _colorFieldRange[1]) { |
---|
1278 | rangePtr = NULL; |
---|
1279 | } |
---|
1280 | setColorMode(_colorMode, _colorFieldType, _colorFieldName.c_str(), rangePtr); |
---|
1281 | } |
---|
1282 | |
---|
1283 | void Streamlines::setColorMode(ColorMode mode) |
---|
1284 | { |
---|
1285 | _colorMode = mode; |
---|
1286 | if (_dataSet == NULL) |
---|
1287 | return; |
---|
1288 | |
---|
1289 | switch (mode) { |
---|
1290 | case COLOR_BY_SCALAR: |
---|
1291 | setColorMode(mode, |
---|
1292 | _dataSet->getActiveScalarsType(), |
---|
1293 | _dataSet->getActiveScalarsName(), |
---|
1294 | _dataRange); |
---|
1295 | break; |
---|
1296 | case COLOR_BY_VECTOR_MAGNITUDE: |
---|
1297 | setColorMode(mode, |
---|
1298 | _dataSet->getActiveVectorsType(), |
---|
1299 | _dataSet->getActiveVectorsName(), |
---|
1300 | _vectorMagnitudeRange); |
---|
1301 | break; |
---|
1302 | case COLOR_BY_VECTOR_X: |
---|
1303 | setColorMode(mode, |
---|
1304 | _dataSet->getActiveVectorsType(), |
---|
1305 | _dataSet->getActiveVectorsName(), |
---|
1306 | _vectorComponentRange[0]); |
---|
1307 | break; |
---|
1308 | case COLOR_BY_VECTOR_Y: |
---|
1309 | setColorMode(mode, |
---|
1310 | _dataSet->getActiveVectorsType(), |
---|
1311 | _dataSet->getActiveVectorsName(), |
---|
1312 | _vectorComponentRange[1]); |
---|
1313 | break; |
---|
1314 | case COLOR_BY_VECTOR_Z: |
---|
1315 | setColorMode(mode, |
---|
1316 | _dataSet->getActiveVectorsType(), |
---|
1317 | _dataSet->getActiveVectorsName(), |
---|
1318 | _vectorComponentRange[2]); |
---|
1319 | break; |
---|
1320 | case COLOR_CONSTANT: |
---|
1321 | default: |
---|
1322 | setColorMode(mode, DataSet::POINT_DATA, NULL, NULL); |
---|
1323 | break; |
---|
1324 | } |
---|
1325 | } |
---|
1326 | |
---|
1327 | void Streamlines::setColorMode(ColorMode mode, |
---|
1328 | const char *name, double range[2]) |
---|
1329 | { |
---|
1330 | if (_dataSet == NULL) |
---|
1331 | return; |
---|
1332 | DataSet::DataAttributeType type = DataSet::POINT_DATA; |
---|
1333 | int numComponents = 1; |
---|
1334 | if (name != NULL && strlen(name) > 0 && |
---|
1335 | !_dataSet->getFieldInfo(name, &type, &numComponents)) { |
---|
1336 | ERROR("Field not found: %s", name); |
---|
1337 | return; |
---|
1338 | } |
---|
1339 | setColorMode(mode, type, name, range); |
---|
1340 | } |
---|
1341 | |
---|
1342 | void Streamlines::setColorMode(ColorMode mode, DataSet::DataAttributeType type, |
---|
1343 | const char *name, double range[2]) |
---|
1344 | { |
---|
1345 | _colorMode = mode; |
---|
1346 | _colorFieldType = type; |
---|
1347 | if (name == NULL) |
---|
1348 | _colorFieldName.clear(); |
---|
1349 | else |
---|
1350 | _colorFieldName = name; |
---|
1351 | if (range == NULL) { |
---|
1352 | _colorFieldRange[0] = DBL_MAX; |
---|
1353 | _colorFieldRange[1] = -DBL_MAX; |
---|
1354 | } else { |
---|
1355 | memcpy(_colorFieldRange, range, sizeof(double)*2); |
---|
1356 | } |
---|
1357 | |
---|
1358 | if (_dataSet == NULL || _pdMapper == NULL) |
---|
1359 | return; |
---|
1360 | |
---|
1361 | switch (type) { |
---|
1362 | case DataSet::POINT_DATA: |
---|
1363 | _pdMapper->SetScalarModeToUsePointFieldData(); |
---|
1364 | break; |
---|
1365 | case DataSet::CELL_DATA: |
---|
1366 | _pdMapper->SetScalarModeToUseCellFieldData(); |
---|
1367 | break; |
---|
1368 | default: |
---|
1369 | ERROR("Unsupported DataAttributeType: %d", type); |
---|
1370 | return; |
---|
1371 | } |
---|
1372 | |
---|
1373 | if (name != NULL && strlen(name) > 0) { |
---|
1374 | _pdMapper->SelectColorArray(name); |
---|
1375 | } else { |
---|
1376 | _pdMapper->SetScalarModeToDefault(); |
---|
1377 | } |
---|
1378 | |
---|
1379 | if (_lut != NULL) { |
---|
1380 | if (range != NULL) { |
---|
1381 | _lut->SetRange(range); |
---|
1382 | } else if (name != NULL && strlen(name) > 0) { |
---|
1383 | double r[2]; |
---|
1384 | int comp = -1; |
---|
1385 | if (mode == COLOR_BY_VECTOR_X) |
---|
1386 | comp = 0; |
---|
1387 | else if (mode == COLOR_BY_VECTOR_Y) |
---|
1388 | comp = 1; |
---|
1389 | else if (mode == COLOR_BY_VECTOR_Z) |
---|
1390 | comp = 2; |
---|
1391 | |
---|
1392 | if (_renderer->getUseCumulativeRange()) { |
---|
1393 | int numComponents; |
---|
1394 | if (!_dataSet->getFieldInfo(name, type, &numComponents)) { |
---|
1395 | ERROR("Field not found: %s, type: %d", name, type); |
---|
1396 | return; |
---|
1397 | } else if (numComponents < comp+1) { |
---|
1398 | ERROR("Request for component %d in field with %d components", |
---|
1399 | comp, numComponents); |
---|
1400 | return; |
---|
1401 | } |
---|
1402 | _renderer->getCumulativeDataRange(r, name, type, numComponents, comp); |
---|
1403 | } else { |
---|
1404 | _dataSet->getDataRange(r, name, type, comp); |
---|
1405 | } |
---|
1406 | _lut->SetRange(r); |
---|
1407 | } |
---|
1408 | } |
---|
1409 | |
---|
1410 | switch (mode) { |
---|
1411 | case COLOR_BY_SCALAR: |
---|
1412 | _pdMapper->ScalarVisibilityOn(); |
---|
1413 | break; |
---|
1414 | case COLOR_BY_VECTOR_MAGNITUDE: |
---|
1415 | _pdMapper->ScalarVisibilityOn(); |
---|
1416 | if (_lut != NULL) { |
---|
1417 | _lut->SetVectorModeToMagnitude(); |
---|
1418 | } |
---|
1419 | break; |
---|
1420 | case COLOR_BY_VECTOR_X: |
---|
1421 | _pdMapper->ScalarVisibilityOn(); |
---|
1422 | if (_lut != NULL) { |
---|
1423 | _lut->SetVectorModeToComponent(); |
---|
1424 | _lut->SetVectorComponent(0); |
---|
1425 | } |
---|
1426 | break; |
---|
1427 | case COLOR_BY_VECTOR_Y: |
---|
1428 | _pdMapper->ScalarVisibilityOn(); |
---|
1429 | if (_lut != NULL) { |
---|
1430 | _lut->SetVectorModeToComponent(); |
---|
1431 | _lut->SetVectorComponent(1); |
---|
1432 | } |
---|
1433 | break; |
---|
1434 | case COLOR_BY_VECTOR_Z: |
---|
1435 | _pdMapper->ScalarVisibilityOn(); |
---|
1436 | if (_lut != NULL) { |
---|
1437 | _lut->SetVectorModeToComponent(); |
---|
1438 | _lut->SetVectorComponent(2); |
---|
1439 | } |
---|
1440 | break; |
---|
1441 | case COLOR_CONSTANT: |
---|
1442 | default: |
---|
1443 | _pdMapper->ScalarVisibilityOff(); |
---|
1444 | break; |
---|
1445 | } |
---|
1446 | } |
---|
1447 | |
---|
1448 | /** |
---|
1449 | * \brief Called when the color map has been edited |
---|
1450 | */ |
---|
1451 | void Streamlines::updateColorMap() |
---|
1452 | { |
---|
1453 | setColorMap(_colorMap); |
---|
1454 | } |
---|
1455 | |
---|
1456 | /** |
---|
1457 | * \brief Associate a colormap lookup table with the DataSet |
---|
1458 | */ |
---|
1459 | void Streamlines::setColorMap(ColorMap *cmap) |
---|
1460 | { |
---|
1461 | if (cmap == NULL) |
---|
1462 | return; |
---|
1463 | |
---|
1464 | _colorMap = cmap; |
---|
1465 | |
---|
1466 | if (_lut == NULL) { |
---|
1467 | _lut = vtkSmartPointer<vtkLookupTable>::New(); |
---|
1468 | if (_pdMapper != NULL) { |
---|
1469 | _pdMapper->UseLookupTableScalarRangeOn(); |
---|
1470 | _pdMapper->SetLookupTable(_lut); |
---|
1471 | } |
---|
1472 | _lut->DeepCopy(cmap->getLookupTable()); |
---|
1473 | switch (_colorMode) { |
---|
1474 | case COLOR_CONSTANT: |
---|
1475 | case COLOR_BY_SCALAR: |
---|
1476 | _lut->SetRange(_dataRange); |
---|
1477 | break; |
---|
1478 | case COLOR_BY_VECTOR_MAGNITUDE: |
---|
1479 | _lut->SetRange(_vectorMagnitudeRange); |
---|
1480 | break; |
---|
1481 | case COLOR_BY_VECTOR_X: |
---|
1482 | _lut->SetRange(_vectorComponentRange[0]); |
---|
1483 | break; |
---|
1484 | case COLOR_BY_VECTOR_Y: |
---|
1485 | _lut->SetRange(_vectorComponentRange[1]); |
---|
1486 | break; |
---|
1487 | case COLOR_BY_VECTOR_Z: |
---|
1488 | _lut->SetRange(_vectorComponentRange[2]); |
---|
1489 | break; |
---|
1490 | default: |
---|
1491 | break; |
---|
1492 | } |
---|
1493 | } else { |
---|
1494 | double range[2]; |
---|
1495 | _lut->GetTableRange(range); |
---|
1496 | _lut->DeepCopy(cmap->getLookupTable()); |
---|
1497 | _lut->SetRange(range); |
---|
1498 | } |
---|
1499 | |
---|
1500 | switch (_colorMode) { |
---|
1501 | case COLOR_BY_VECTOR_MAGNITUDE: |
---|
1502 | _lut->SetVectorModeToMagnitude(); |
---|
1503 | break; |
---|
1504 | case COLOR_BY_VECTOR_X: |
---|
1505 | _lut->SetVectorModeToComponent(); |
---|
1506 | _lut->SetVectorComponent(0); |
---|
1507 | break; |
---|
1508 | case COLOR_BY_VECTOR_Y: |
---|
1509 | _lut->SetVectorModeToComponent(); |
---|
1510 | _lut->SetVectorComponent(1); |
---|
1511 | break; |
---|
1512 | case COLOR_BY_VECTOR_Z: |
---|
1513 | _lut->SetVectorModeToComponent(); |
---|
1514 | _lut->SetVectorComponent(2); |
---|
1515 | break; |
---|
1516 | default: |
---|
1517 | break; |
---|
1518 | } |
---|
1519 | } |
---|
1520 | |
---|
1521 | /** |
---|
1522 | * \brief Turn on/off lighting of this object |
---|
1523 | */ |
---|
1524 | void Streamlines::setLighting(bool state) |
---|
1525 | { |
---|
1526 | _lighting = state; |
---|
1527 | if (_linesActor != NULL) |
---|
1528 | _linesActor->GetProperty()->SetLighting((state ? 1 : 0)); |
---|
1529 | } |
---|
1530 | |
---|
1531 | /** |
---|
1532 | * \brief Set opacity of this object |
---|
1533 | */ |
---|
1534 | void Streamlines::setOpacity(double opacity) |
---|
1535 | { |
---|
1536 | _opacity = opacity; |
---|
1537 | if (_linesActor != NULL) { |
---|
1538 | _linesActor->GetProperty()->SetOpacity(_opacity); |
---|
1539 | if (_opacity < 1.0) |
---|
1540 | setCulling(_linesActor->GetProperty(), false); |
---|
1541 | else if (_faceCulling && _lineType == TUBES) |
---|
1542 | setCulling(_linesActor->GetProperty(), true); |
---|
1543 | } |
---|
1544 | if (_seedActor != NULL) { |
---|
1545 | _seedActor->GetProperty()->SetOpacity(_opacity); |
---|
1546 | } |
---|
1547 | } |
---|
1548 | |
---|
1549 | /** |
---|
1550 | * \brief Turn on/off rendering of this Streamlines |
---|
1551 | */ |
---|
1552 | void Streamlines::setVisibility(bool state) |
---|
1553 | { |
---|
1554 | if (_linesActor != NULL) { |
---|
1555 | _linesActor->SetVisibility((state ? 1 : 0)); |
---|
1556 | } |
---|
1557 | if (_seedActor != NULL) { |
---|
1558 | if (!state || |
---|
1559 | (state && _seedVisible)) { |
---|
1560 | _seedActor->SetVisibility((state ? 1 : 0)); |
---|
1561 | } |
---|
1562 | } |
---|
1563 | } |
---|
1564 | |
---|
1565 | /** |
---|
1566 | * \brief Turn on/off rendering of the seed geometry |
---|
1567 | */ |
---|
1568 | void Streamlines::setSeedVisibility(bool state) |
---|
1569 | { |
---|
1570 | _seedVisible = state; |
---|
1571 | if (_seedActor != NULL) { |
---|
1572 | _seedActor->SetVisibility((state ? 1 : 0)); |
---|
1573 | } |
---|
1574 | } |
---|
1575 | |
---|
1576 | /** |
---|
1577 | * \brief Get visibility state of the Streamlines |
---|
1578 | * |
---|
1579 | * \return Are the Streamlines visible? |
---|
1580 | */ |
---|
1581 | bool Streamlines::getVisibility() |
---|
1582 | { |
---|
1583 | if (_linesActor == NULL) { |
---|
1584 | return false; |
---|
1585 | } else { |
---|
1586 | return (_linesActor->GetVisibility() != 0); |
---|
1587 | } |
---|
1588 | } |
---|
1589 | |
---|
1590 | /** |
---|
1591 | * \brief Turn on/off rendering of edges |
---|
1592 | */ |
---|
1593 | void Streamlines::setEdgeVisibility(bool state) |
---|
1594 | { |
---|
1595 | if (_linesActor != NULL) { |
---|
1596 | _linesActor->GetProperty()->SetEdgeVisibility((state ? 1 : 0)); |
---|
1597 | } |
---|
1598 | } |
---|
1599 | |
---|
1600 | /** |
---|
1601 | * \brief Set RGB color of stream lines |
---|
1602 | */ |
---|
1603 | void Streamlines::setColor(float color[3]) |
---|
1604 | { |
---|
1605 | _color[0] = color[0]; |
---|
1606 | _color[1] = color[1]; |
---|
1607 | _color[2] = color[2]; |
---|
1608 | if (_linesActor != NULL) |
---|
1609 | _linesActor->GetProperty()->SetColor(_color[0], _color[1], _color[2]); |
---|
1610 | } |
---|
1611 | |
---|
1612 | /** |
---|
1613 | * \brief Set RGB color of stream line edges |
---|
1614 | */ |
---|
1615 | void Streamlines::setEdgeColor(float color[3]) |
---|
1616 | { |
---|
1617 | _edgeColor[0] = color[0]; |
---|
1618 | _edgeColor[1] = color[1]; |
---|
1619 | _edgeColor[2] = color[2]; |
---|
1620 | if (_linesActor != NULL) |
---|
1621 | _linesActor->GetProperty()->SetEdgeColor(_edgeColor[0], _edgeColor[1], _edgeColor[2]); |
---|
1622 | } |
---|
1623 | |
---|
1624 | /** |
---|
1625 | * \brief Set RGB color of seed geometry |
---|
1626 | */ |
---|
1627 | void Streamlines::setSeedColor(float color[3]) |
---|
1628 | { |
---|
1629 | _seedColor[0] = color[0]; |
---|
1630 | _seedColor[1] = color[1]; |
---|
1631 | _seedColor[2] = color[2]; |
---|
1632 | if (_seedActor != NULL) { |
---|
1633 | _seedActor->GetProperty()->SetColor(_seedColor[0], _seedColor[1], _seedColor[2]); |
---|
1634 | _seedActor->GetProperty()->SetEdgeColor(_seedColor[0], _seedColor[1], _seedColor[2]); |
---|
1635 | } |
---|
1636 | } |
---|
1637 | |
---|
1638 | /** |
---|
1639 | * \brief Set pixel width of stream lines (may be a no-op) |
---|
1640 | */ |
---|
1641 | void Streamlines::setEdgeWidth(float edgeWidth) |
---|
1642 | { |
---|
1643 | _edgeWidth = edgeWidth; |
---|
1644 | if (_linesActor != NULL) |
---|
1645 | _linesActor->GetProperty()->SetLineWidth(_edgeWidth); |
---|
1646 | } |
---|
1647 | |
---|
1648 | /** |
---|
1649 | * \brief Set a group of world coordinate planes to clip rendering |
---|
1650 | * |
---|
1651 | * Passing NULL for planes will remove all cliping planes |
---|
1652 | */ |
---|
1653 | void Streamlines::setClippingPlanes(vtkPlaneCollection *planes) |
---|
1654 | { |
---|
1655 | if (_pdMapper != NULL) { |
---|
1656 | _pdMapper->SetClippingPlanes(planes); |
---|
1657 | } |
---|
1658 | if (_seedMapper != NULL) { |
---|
1659 | _seedMapper->SetClippingPlanes(planes); |
---|
1660 | } |
---|
1661 | } |
---|