1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2011, Purdue Research Foundation |
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4 | * |
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5 | * Author: Leif Delgass <ldelgass@purdue.edu> |
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6 | */ |
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7 | |
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8 | #include <cassert> |
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9 | |
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10 | #include <vtkDataSet.h> |
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11 | #include <vtkPolyData.h> |
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12 | #include <vtkUnstructuredGrid.h> |
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13 | #include <vtkPolyDataMapper.h> |
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14 | #include <vtkActor.h> |
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15 | #include <vtkProperty.h> |
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16 | #include <vtkDelaunay2D.h> |
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17 | #include <vtkDelaunay3D.h> |
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18 | #include <vtkDataSetSurfaceFilter.h> |
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19 | |
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20 | #include "RpPolyData.h" |
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21 | #include "Trace.h" |
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22 | |
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23 | using namespace Rappture::VtkVis; |
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24 | |
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25 | PolyData::PolyData() : |
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26 | VtkGraphicsObject() |
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27 | { |
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28 | _color[0] = 0.0f; |
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29 | _color[1] = 0.0f; |
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30 | _color[2] = 1.0f; |
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31 | } |
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32 | |
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33 | PolyData::~PolyData() |
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34 | { |
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35 | #ifdef WANT_TRACE |
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36 | if (_dataSet != NULL) |
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37 | TRACE("Deleting PolyData for %s", _dataSet->getName().c_str()); |
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38 | else |
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39 | TRACE("Deleting PolyData with NULL DataSet"); |
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40 | #endif |
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41 | } |
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42 | |
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43 | /** |
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44 | * \brief Create and initialize a VTK Prop to render a mesh |
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45 | */ |
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46 | void PolyData::initProp() |
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47 | { |
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48 | if (_prop == NULL) { |
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49 | _prop = vtkSmartPointer<vtkActor>::New(); |
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50 | vtkProperty *property = getActor()->GetProperty(); |
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51 | property->EdgeVisibilityOn(); |
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52 | property->SetColor(_color[0], _color[1], _color[2]); |
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53 | property->SetEdgeColor(_edgeColor[0], _edgeColor[1], _edgeColor[2]); |
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54 | property->SetLineWidth(_edgeWidth); |
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55 | property->SetOpacity(_opacity); |
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56 | property->SetAmbient(.2); |
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57 | if (!_lighting) |
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58 | property->LightingOff(); |
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59 | } |
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60 | } |
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61 | |
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62 | /** |
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63 | * \brief Internal method to set up pipeline after a state change |
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64 | */ |
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65 | void PolyData::update() |
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66 | { |
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67 | if (_dataSet == NULL) { |
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68 | return; |
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69 | } |
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70 | |
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71 | if (_pdMapper == NULL) { |
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72 | _pdMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); |
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73 | _pdMapper->SetResolveCoincidentTopologyToPolygonOffset(); |
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74 | _pdMapper->ScalarVisibilityOff(); |
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75 | } |
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76 | |
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77 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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78 | vtkPolyData *pd = vtkPolyData::SafeDownCast(ds); |
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79 | if (pd) { |
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80 | TRACE("Verts: %d Lines: %d Polys: %d Strips: %d", |
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81 | pd->GetNumberOfVerts(), |
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82 | pd->GetNumberOfLines(), |
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83 | pd->GetNumberOfPolys(), |
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84 | pd->GetNumberOfStrips()); |
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85 | // DataSet is a vtkPolyData |
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86 | if (pd->GetNumberOfLines() == 0 && |
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87 | pd->GetNumberOfPolys() == 0 && |
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88 | pd->GetNumberOfStrips() == 0) { |
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89 | // DataSet is a point cloud |
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90 | if (_dataSet->is2D()) { |
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91 | vtkSmartPointer<vtkDelaunay2D> mesher = vtkSmartPointer<vtkDelaunay2D>::New(); |
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92 | mesher->SetInput(pd); |
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93 | mesher->ReleaseDataFlagOn(); |
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94 | _pdMapper->SetInputConnection(mesher->GetOutputPort()); |
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95 | #if defined(DEBUG) && defined(WANT_TRACE) |
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96 | mesher->Update(); |
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97 | vtkPolyData *outpd = mesher->GetOutput(); |
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98 | TRACE("Delaunay2D Verts: %d Lines: %d Polys: %d Strips: %d", |
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99 | outpd->GetNumberOfVerts(), |
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100 | outpd->GetNumberOfLines(), |
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101 | outpd->GetNumberOfPolys(), |
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102 | outpd->GetNumberOfStrips()); |
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103 | #endif |
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104 | } else { |
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105 | vtkSmartPointer<vtkDelaunay3D> mesher = vtkSmartPointer<vtkDelaunay3D>::New(); |
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106 | mesher->SetInput(pd); |
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107 | mesher->ReleaseDataFlagOn(); |
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108 | // Delaunay3D returns an UnstructuredGrid, so feed it through a surface filter |
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109 | // to get the grid boundary as a PolyData |
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110 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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111 | gf->UseStripsOn(); |
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112 | gf->SetInputConnection(mesher->GetOutputPort()); |
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113 | gf->ReleaseDataFlagOn(); |
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114 | _pdMapper->SetInputConnection(gf->GetOutputPort()); |
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115 | } |
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116 | } else { |
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117 | // DataSet is a vtkPolyData with lines and/or polygons |
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118 | _pdMapper->SetInput(pd); |
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119 | } |
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120 | } else { |
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121 | // DataSet is NOT a vtkPolyData |
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122 | TRACE("DataSet is not a PolyData"); |
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123 | vtkSmartPointer<vtkDataSetSurfaceFilter> gf = vtkSmartPointer<vtkDataSetSurfaceFilter>::New(); |
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124 | gf->UseStripsOn(); |
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125 | gf->SetInput(ds); |
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126 | gf->ReleaseDataFlagOn(); |
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127 | _pdMapper->SetInputConnection(gf->GetOutputPort()); |
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128 | } |
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129 | |
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130 | initProp(); |
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131 | getActor()->SetMapper(_pdMapper); |
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132 | _pdMapper->Update(); |
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133 | } |
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134 | |
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135 | /** |
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136 | * \brief Set a group of world coordinate planes to clip rendering |
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137 | * |
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138 | * Passing NULL for planes will remove all cliping planes |
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139 | */ |
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140 | void PolyData::setClippingPlanes(vtkPlaneCollection *planes) |
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141 | { |
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142 | if (_pdMapper != NULL) { |
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143 | _pdMapper->SetClippingPlanes(planes); |
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144 | } |
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145 | } |
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146 | |
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