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 | #ifndef __RAPPTURE_VTKVIS_STREAMLINES_H__ |
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9 | #define __RAPPTURE_VTKVIS_STREAMLINES_H__ |
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10 | |
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11 | #include <vtkSmartPointer.h> |
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12 | #include <vtkProp.h> |
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13 | #include <vtkPlaneCollection.h> |
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14 | #include <vtkStreamTracer.h> |
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15 | #include <vtkPolyDataAlgorithm.h> |
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16 | #include <vtkPolyDataMapper.h> |
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17 | #include <vtkLookupTable.h> |
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18 | #include <vtkAssembly.h> |
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19 | |
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20 | #include "ColorMap.h" |
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21 | #include "RpVtkGraphicsObject.h" |
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22 | #include "RpVtkDataSet.h" |
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23 | |
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24 | namespace Rappture { |
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25 | namespace VtkVis { |
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26 | |
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27 | /** |
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28 | * \brief Streamline visualization of vector fields |
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29 | * |
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30 | * The DataSet must contain vectors |
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31 | */ |
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32 | class Streamlines : public VtkGraphicsObject { |
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33 | public: |
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34 | enum LineType { |
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35 | LINES, |
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36 | TUBES, |
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37 | RIBBONS |
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38 | }; |
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39 | enum ColorMode { |
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40 | COLOR_BY_SCALAR, |
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41 | COLOR_BY_VECTOR_MAGNITUDE, |
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42 | COLOR_BY_VECTOR_X, |
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43 | COLOR_BY_VECTOR_Y, |
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44 | COLOR_BY_VECTOR_Z, |
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45 | COLOR_CONSTANT |
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46 | }; |
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47 | enum StepUnit { |
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48 | LENGTH_UNIT, |
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49 | CELL_LENGTH_UNIT |
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50 | }; |
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51 | enum IntegratorType { |
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52 | RUNGE_KUTTA2, |
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53 | RUNGE_KUTTA4, |
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54 | RUNGE_KUTTA45 |
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55 | }; |
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56 | enum IntegrationDirection { |
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57 | FORWARD, |
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58 | BACKWARD, |
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59 | BOTH |
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60 | }; |
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61 | enum SeedType { |
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62 | DATASET_MESH_POINTS, |
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63 | DATASET_FILLED_MESH, |
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64 | MESH_POINTS, |
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65 | FILLED_MESH, |
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66 | RAKE, |
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67 | DISK, |
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68 | POLYGON, |
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69 | FILLED_POLYGON |
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70 | }; |
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71 | |
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72 | Streamlines(); |
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73 | virtual ~Streamlines(); |
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74 | |
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75 | virtual const char *getClassName() const |
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76 | { |
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77 | return "Streamlines"; |
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78 | } |
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79 | |
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80 | virtual void setDataSet(DataSet *dataSet, |
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81 | Renderer *renderer); |
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82 | |
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83 | virtual void setLighting(bool state); |
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84 | |
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85 | virtual void setOpacity(double opacity); |
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86 | |
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87 | virtual void setVisibility(bool state); |
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88 | |
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89 | virtual bool getVisibility(); |
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90 | |
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91 | virtual void setColor(float color[3]); |
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92 | |
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93 | virtual void setEdgeVisibility(bool state); |
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94 | |
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95 | virtual void setEdgeColor(float color[3]); |
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96 | |
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97 | virtual void setEdgeWidth(float edgeWidth); |
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98 | |
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99 | virtual void setClippingPlanes(vtkPlaneCollection *planes); |
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100 | |
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101 | void setNumberOfSeedPoints(int numPoints); |
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102 | |
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103 | void setSeedToMeshPoints(); |
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104 | |
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105 | void setSeedToFilledMesh(int numPoints); |
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106 | |
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107 | void setSeedToMeshPoints(vtkDataSet *ds); |
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108 | |
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109 | void setSeedToFilledMesh(vtkDataSet *ds, int numPoints); |
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110 | |
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111 | void setSeedToRake(double start[3], double end[3], int numPoints); |
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112 | |
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113 | void setSeedToDisk(double center[3], double normal[3], |
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114 | double radius, double innerRadius, int numPoints); |
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115 | |
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116 | void setSeedToPolygon(double center[3], double normal[3], |
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117 | double angle, double radius, |
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118 | int numSides); |
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119 | |
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120 | void setSeedToFilledPolygon(double center[3], double normal[3], |
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121 | double angle, double radius, |
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122 | int numSides, int numPoints); |
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123 | |
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124 | void setIntegrator(IntegratorType integrator); |
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125 | |
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126 | void setIntegrationDirection(IntegrationDirection dir); |
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127 | |
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128 | void setIntegrationStepUnit(StepUnit unit); |
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129 | |
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130 | void setInitialIntegrationStep(double step); |
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131 | |
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132 | void setMinimumIntegrationStep(double step); |
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133 | |
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134 | void setMaximumIntegrationStep(double step); |
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135 | |
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136 | void setMaximumError(double error); |
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137 | |
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138 | void setMaxPropagation(double length); |
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139 | |
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140 | void setMaxNumberOfSteps(int steps); |
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141 | |
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142 | void setTerminalSpeed(double speed); |
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143 | |
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144 | void setLineTypeToLines(); |
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145 | |
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146 | void setLineTypeToTubes(int numSides, double radius); |
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147 | |
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148 | void setLineTypeToRibbons(double width, double angle); |
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149 | |
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150 | void setColorMode(ColorMode mode, DataSet::DataAttributeType type, |
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151 | const char *name, double range[2] = NULL); |
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152 | |
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153 | void setColorMode(ColorMode mode, |
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154 | const char *name, double range[2] = NULL); |
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155 | |
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156 | void setColorMode(ColorMode mode); |
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157 | |
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158 | void setColorMap(ColorMap *colorMap); |
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159 | |
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160 | /** |
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161 | * \brief Return the ColorMap in use |
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162 | */ |
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163 | ColorMap *getColorMap() |
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164 | { |
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165 | return _colorMap; |
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166 | } |
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167 | |
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168 | void updateColorMap(); |
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169 | |
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170 | virtual void updateRanges(Renderer *renderer); |
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171 | |
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172 | void setSeedVisibility(bool state); |
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173 | |
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174 | void setSeedColor(float color[3]); |
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175 | |
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176 | private: |
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177 | virtual void initProp(); |
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178 | virtual void update(); |
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179 | |
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180 | static double getRandomNum(double min, double max); |
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181 | static void getRandomPoint(double pt[3], const double bounds[6]); |
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182 | static void getRandomPointInTriangle(double pt[3], |
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183 | const double v0[3], |
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184 | const double v1[3], |
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185 | const double v2[3]); |
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186 | static void getRandomPointOnLineSegment(double pt[3], |
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187 | const double endpt[3], |
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188 | const double endpt2[3]); |
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189 | static void getRandomPointInTetrahedron(double pt[3], |
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190 | const double v0[3], |
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191 | const double v1[3], |
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192 | const double v2[3], |
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193 | const double v3[3]); |
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194 | static void getRandomCellPt(double pt[3], vtkDataSet *ds); |
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195 | |
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196 | LineType _lineType; |
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197 | ColorMap *_colorMap; |
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198 | ColorMode _colorMode; |
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199 | std::string _colorFieldName; |
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200 | DataSet::DataAttributeType _colorFieldType; |
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201 | double _colorFieldRange[2]; |
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202 | SeedType _seedType; |
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203 | float _seedColor[3]; |
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204 | bool _seedVisible; |
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205 | double _vectorMagnitudeRange[2]; |
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206 | double _vectorComponentRange[3][2]; |
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207 | Renderer *_renderer; |
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208 | double _dataScale; |
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209 | |
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210 | vtkSmartPointer<vtkLookupTable> _lut; |
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211 | vtkSmartPointer<vtkActor> _linesActor; |
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212 | vtkSmartPointer<vtkActor> _seedActor; |
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213 | vtkSmartPointer<vtkDataSet> _seedMesh; |
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214 | vtkSmartPointer<vtkStreamTracer> _streamTracer; |
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215 | vtkSmartPointer<vtkPolyDataAlgorithm> _lineFilter; |
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216 | vtkSmartPointer<vtkPolyDataMapper> _pdMapper; |
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217 | vtkSmartPointer<vtkPolyDataMapper> _seedMapper; |
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218 | }; |
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219 | |
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220 | } |
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221 | } |
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222 | |
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223 | #endif |
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