1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2004-2012 HUBzero Foundation, LLC |
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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 | #include <cstring> |
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10 | #include <cfloat> |
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11 | #include <cmath> |
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12 | |
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13 | #include <vtkCharArray.h> |
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14 | #include <vtkDataSetReader.h> |
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15 | #include <vtkDataSetWriter.h> |
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16 | #include <vtkPolyData.h> |
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17 | #include <vtkStructuredPoints.h> |
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18 | #include <vtkStructuredGrid.h> |
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19 | #include <vtkRectilinearGrid.h> |
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20 | #include <vtkUnstructuredGrid.h> |
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21 | #include <vtkProperty.h> |
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22 | #include <vtkPointData.h> |
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23 | #include <vtkCellData.h> |
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24 | #include <vtkCell.h> |
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25 | #include <vtkLookupTable.h> |
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26 | #include <vtkExtractUnstructuredGrid.h> |
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27 | |
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28 | #include "DataSet.h" |
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29 | #include "Trace.h" |
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30 | |
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31 | using namespace VtkVis; |
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32 | |
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33 | DataSet::DataSet(const std::string& name) : |
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34 | _name(name), |
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35 | _visible(true), |
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36 | _opacity(1), |
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37 | _cellSizeAverage(0) |
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38 | { |
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39 | _cellSizeRange[0] = -1; |
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40 | _cellSizeRange[1] = -1; |
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41 | } |
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42 | |
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43 | DataSet::~DataSet() |
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44 | { |
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45 | } |
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46 | |
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47 | /** |
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48 | * \brief Set opacity of DataSet outline |
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49 | * |
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50 | * This method is used for record-keeping and opacity of the |
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51 | * DataSet bounds outline. The renderer controls opacity |
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52 | * of other related graphics objects. |
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53 | */ |
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54 | void DataSet::setOpacity(double opacity) |
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55 | { |
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56 | _opacity = opacity; |
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57 | } |
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58 | |
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59 | /** |
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60 | * \brief Set visibility flag in DataSet |
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61 | * |
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62 | * This method is used for record-keeping and visibility of the |
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63 | * DataSet bounds outline. The renderer controls visibility |
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64 | * of other related graphics objects. |
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65 | */ |
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66 | void DataSet::setVisibility(bool state) |
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67 | { |
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68 | _visible = state; |
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69 | } |
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70 | |
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71 | /** |
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72 | * \brief Get visibility flag in DataSet |
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73 | * |
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74 | * This method is used for record-keeping. The renderer controls |
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75 | * the visibility of related graphics objects. |
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76 | */ |
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77 | bool DataSet::getVisibility() const |
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78 | { |
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79 | return _visible; |
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80 | } |
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81 | |
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82 | void DataSet::writeDataFile(const char *filename) |
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83 | { |
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84 | if (_dataSet == NULL) |
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85 | return; |
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86 | |
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87 | vtkSmartPointer<vtkDataSetWriter> writer = vtkSmartPointer<vtkDataSetWriter>::New(); |
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88 | |
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89 | writer->SetFileName(filename); |
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90 | #ifdef USE_VTK6 |
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91 | writer->SetInputData(_dataSet); |
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92 | #else |
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93 | writer->SetInput(_dataSet); |
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94 | #endif |
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95 | writer->Write(); |
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96 | } |
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97 | |
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98 | /** |
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99 | * \brief Read a VTK data file |
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100 | */ |
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101 | bool DataSet::setDataFile(const char *filename) |
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102 | { |
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103 | vtkSmartPointer<vtkDataSetReader> reader = vtkSmartPointer<vtkDataSetReader>::New(); |
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104 | |
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105 | #if defined(WANT_TRACE) && defined(DEBUG) |
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106 | reader->DebugOn(); |
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107 | #endif |
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108 | |
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109 | reader->SetFileName(filename); |
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110 | reader->ReadAllNormalsOn(); |
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111 | reader->ReadAllTCoordsOn(); |
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112 | reader->ReadAllScalarsOn(); |
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113 | reader->ReadAllColorScalarsOn(); |
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114 | reader->ReadAllVectorsOn(); |
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115 | reader->ReadAllTensorsOn(); |
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116 | reader->ReadAllFieldsOn(); |
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117 | |
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118 | return setData(reader); |
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119 | } |
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120 | |
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121 | /** |
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122 | * \brief Read a VTK data file from a memory buffer |
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123 | */ |
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124 | bool DataSet::setData(char *data, int nbytes) |
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125 | { |
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126 | vtkSmartPointer<vtkDataSetReader> reader = vtkSmartPointer<vtkDataSetReader>::New(); |
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127 | vtkSmartPointer<vtkCharArray> dataSetString = vtkSmartPointer<vtkCharArray>::New(); |
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128 | |
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129 | #if defined(WANT_TRACE) && defined(DEBUG) |
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130 | reader->DebugOn(); |
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131 | dataSetString->DebugOn(); |
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132 | #endif |
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133 | |
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134 | dataSetString->SetArray(data, nbytes, 1); |
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135 | reader->SetInputArray(dataSetString); |
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136 | reader->ReadFromInputStringOn(); |
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137 | reader->ReadAllNormalsOn(); |
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138 | reader->ReadAllTCoordsOn(); |
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139 | reader->ReadAllScalarsOn(); |
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140 | reader->ReadAllColorScalarsOn(); |
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141 | reader->ReadAllVectorsOn(); |
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142 | reader->ReadAllTensorsOn(); |
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143 | reader->ReadAllFieldsOn(); |
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144 | |
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145 | return setData(reader); |
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146 | } |
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147 | |
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148 | /** |
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149 | * \brief Read dataset using supplied reader |
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150 | * |
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151 | * Pipeline information is removed from the resulting |
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152 | * vtkDataSet, so that the reader and its data can be |
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153 | * released |
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154 | */ |
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155 | bool DataSet::setData(vtkDataSetReader *reader) |
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156 | { |
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157 | TRACE("Enter"); |
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158 | // Force reading data set |
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159 | reader->SetLookupTableName(""); |
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160 | reader->Update(); |
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161 | |
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162 | _dataSet = reader->GetOutput(); |
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163 | if (_dataSet == NULL) |
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164 | return false; |
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165 | |
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166 | if (vtkUnstructuredGrid::SafeDownCast(_dataSet) != NULL && !isCloud()) { |
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167 | vtkSmartPointer<vtkExtractUnstructuredGrid> filter = vtkSmartPointer<vtkExtractUnstructuredGrid>::New(); |
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168 | #ifdef USE_VTK6 |
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169 | filter->SetInputData(_dataSet); |
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170 | #else |
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171 | filter->SetInput(_dataSet); |
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172 | #endif |
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173 | filter->MergingOn(); |
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174 | filter->ReleaseDataFlagOn(); |
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175 | filter->Update(); |
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176 | _dataSet = filter->GetOutput(); |
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177 | } |
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178 | |
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179 | #ifndef USE_VTK6 |
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180 | _dataSet->SetPipelineInformation(NULL); |
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181 | #endif |
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182 | if (_dataSet->GetPointData() != NULL && |
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183 | _dataSet->GetPointData()->GetScalars() != NULL && |
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184 | _dataSet->GetPointData()->GetScalars()->GetLookupTable() != NULL) { |
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185 | USER_ERROR("No lookup table should be specified in VTK data sets"); |
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186 | } |
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187 | |
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188 | setDefaultArrays(); |
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189 | |
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190 | #ifdef WANT_TRACE |
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191 | print(); |
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192 | #endif |
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193 | TRACE("Leave"); |
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194 | return true; |
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195 | } |
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196 | |
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197 | /** |
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198 | * \brief Set DataSet from existing vtkDataSet object |
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199 | * |
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200 | * Pipeline information is removed from the supplied vtkDataSet |
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201 | */ |
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202 | bool DataSet::setData(vtkDataSet *ds) |
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203 | { |
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204 | _dataSet = ds; |
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205 | #ifndef USE_VTK6 |
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206 | _dataSet->SetPipelineInformation(NULL); |
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207 | #endif |
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208 | |
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209 | if (_dataSet->GetPointData() != NULL && |
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210 | _dataSet->GetPointData()->GetScalars() != NULL && |
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211 | _dataSet->GetPointData()->GetScalars()->GetLookupTable() != NULL) { |
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212 | USER_ERROR("No lookup table should be specified in VTK data sets"); |
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213 | } |
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214 | |
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215 | setDefaultArrays(); |
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216 | |
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217 | #ifdef WANT_TRACE |
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218 | print(); |
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219 | #endif |
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220 | return true; |
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221 | } |
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222 | |
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223 | /** |
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224 | * \brief Copy an existing vtkDataSet object |
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225 | * |
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226 | * Pipeline information is not copied from the supplied vtkDataSet |
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227 | * into this DataSet, but pipeline information in the supplied |
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228 | * vtkDataSet is not removed |
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229 | */ |
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230 | vtkDataSet *DataSet::copyData(vtkDataSet *ds) |
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231 | { |
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232 | if (vtkPolyData::SafeDownCast(ds) != NULL) { |
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233 | _dataSet = vtkSmartPointer<vtkPolyData>::New(); |
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234 | _dataSet->DeepCopy(vtkPolyData::SafeDownCast(ds)); |
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235 | } else if (vtkStructuredPoints::SafeDownCast(ds) != NULL) { |
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236 | _dataSet = vtkSmartPointer<vtkStructuredPoints>::New(); |
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237 | _dataSet->DeepCopy(vtkStructuredPoints::SafeDownCast(ds)); |
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238 | } else if (vtkStructuredGrid::SafeDownCast(ds) != NULL) { |
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239 | _dataSet = vtkSmartPointer<vtkStructuredGrid>::New(); |
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240 | _dataSet->DeepCopy(vtkStructuredGrid::SafeDownCast(ds)); |
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241 | } else if (vtkRectilinearGrid::SafeDownCast(ds) != NULL) { |
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242 | _dataSet = vtkSmartPointer<vtkRectilinearGrid>::New(); |
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243 | _dataSet->DeepCopy(vtkRectilinearGrid::SafeDownCast(ds)); |
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244 | } else if (vtkUnstructuredGrid::SafeDownCast(ds) != NULL) { |
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245 | _dataSet = vtkSmartPointer<vtkUnstructuredGrid>::New(); |
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246 | _dataSet->DeepCopy(vtkUnstructuredGrid::SafeDownCast(ds)); |
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247 | } else { |
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248 | ERROR("Unknown data type"); |
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249 | return NULL; |
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250 | } |
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251 | |
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252 | #ifdef WANT_TRACE |
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253 | print(); |
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254 | #endif |
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255 | return _dataSet; |
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256 | } |
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257 | |
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258 | /** |
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259 | * \brief Does DataSet lie in the XY plane (z = 0) |
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260 | */ |
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261 | bool DataSet::isXY() const |
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262 | { |
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263 | double bounds[6]; |
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264 | getBounds(bounds); |
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265 | return (bounds[4] == 0. && bounds[4] == bounds[5]); |
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266 | } |
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267 | |
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268 | /** |
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269 | * \brief Returns the dimensionality of the AABB |
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270 | */ |
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271 | int DataSet::numDimensions() const |
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272 | { |
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273 | double bounds[6]; |
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274 | getBounds(bounds); |
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275 | int numDims = 0; |
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276 | if (bounds[0] != bounds[1]) |
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277 | numDims++; |
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278 | if (bounds[2] != bounds[3]) |
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279 | numDims++; |
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280 | if (bounds[4] != bounds[5]) |
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281 | numDims++; |
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282 | |
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283 | return numDims; |
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284 | } |
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285 | |
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286 | /** |
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287 | * \brief Determines if DataSet lies in a principal axis plane |
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288 | * and if so, returns the plane normal and offset from origin |
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289 | */ |
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290 | bool DataSet::is2D(PrincipalPlane *plane, double *offset) const |
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291 | { |
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292 | double bounds[6]; |
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293 | getBounds(bounds); |
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294 | if (bounds[4] == bounds[5]) { |
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295 | // Zmin = Zmax, XY plane |
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296 | if (plane != NULL) { |
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297 | *plane = PLANE_XY; |
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298 | } |
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299 | if (offset != NULL) |
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300 | *offset = bounds[4]; |
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301 | return true; |
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302 | } else if (bounds[0] == bounds[1]) { |
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303 | // Xmin = Xmax, ZY plane |
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304 | if (plane != NULL) { |
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305 | *plane = PLANE_ZY; |
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306 | } |
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307 | if (offset != NULL) |
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308 | *offset = bounds[0]; |
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309 | return true; |
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310 | } else if (bounds[2] == bounds[3]) { |
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311 | // Ymin = Ymax, XZ plane |
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312 | if (plane != NULL) { |
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313 | *plane = PLANE_XZ; |
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314 | } |
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315 | if (offset != NULL) |
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316 | *offset = bounds[2]; |
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317 | return true; |
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318 | } |
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319 | return false; |
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320 | } |
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321 | |
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322 | /** |
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323 | * \brief Determines a principal plane with the |
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324 | * largest two dimensions of the AABB |
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325 | */ |
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326 | PrincipalPlane DataSet::principalPlane() const |
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327 | { |
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328 | double bounds[6]; |
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329 | getBounds(bounds); |
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330 | double xlen = bounds[1] - bounds[0]; |
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331 | double ylen = bounds[3] - bounds[2]; |
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332 | double zlen = bounds[5] - bounds[4]; |
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333 | if (zlen <= xlen && zlen <= ylen) { |
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334 | return PLANE_XY; |
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335 | } else if (xlen <= ylen && xlen <= zlen) { |
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336 | return PLANE_ZY; |
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337 | } else { |
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338 | return PLANE_XZ; |
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339 | } |
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340 | } |
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341 | |
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342 | /** |
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343 | * \brief Determines if mesh is a point cloud (has no cells) |
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344 | */ |
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345 | bool DataSet::isCloud() const |
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346 | { |
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347 | vtkPolyData *pd = vtkPolyData::SafeDownCast(_dataSet); |
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348 | if (pd) { |
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349 | // If PolyData, is a cloud if there are no cells other than vertices |
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350 | if (pd->GetNumberOfLines() == 0 && |
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351 | pd->GetNumberOfPolys() == 0 && |
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352 | pd->GetNumberOfStrips() == 0) { |
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353 | return true; |
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354 | } else { |
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355 | // Has cells |
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356 | return false; |
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357 | } |
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358 | } else { |
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359 | return (_dataSet->GetNumberOfCells() == 0); |
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360 | } |
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361 | } |
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362 | |
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363 | /** |
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364 | * \brief Get the name/id of this dataset |
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365 | */ |
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366 | const std::string& DataSet::getName() const |
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367 | { |
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368 | return _name; |
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369 | } |
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370 | |
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371 | /** |
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372 | * \brief Get the underlying VTK DataSet object |
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373 | */ |
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374 | vtkDataSet *DataSet::getVtkDataSet() |
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375 | { |
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376 | return _dataSet; |
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377 | } |
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378 | |
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379 | /** |
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380 | * \brief Get the underlying VTK DataSet subclass class name |
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381 | */ |
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382 | const char *DataSet::getVtkType() const |
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383 | { |
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384 | return _dataSet->GetClassName(); |
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385 | } |
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386 | |
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387 | /** |
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388 | * \brief Set the ative scalar array to the named field |
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389 | */ |
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390 | bool DataSet::setActiveScalars(const char *name) |
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391 | { |
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392 | bool found = false; |
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393 | if (_dataSet != NULL) { |
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394 | if (!hasField(name)) { |
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395 | ERROR("No field named %s in %s", name, getName().c_str()); |
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396 | } else { |
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397 | if (_dataSet->GetPointData() != NULL) { |
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398 | if (_dataSet->GetPointData()->SetActiveScalars(name) >= 0) { |
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399 | TRACE("Set active point data scalars for %s to %s", getName().c_str(), name); |
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400 | found = true; |
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401 | } |
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402 | } |
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403 | if (_dataSet->GetCellData() != NULL) { |
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404 | if (_dataSet->GetCellData()->SetActiveScalars(name) >= 0) { |
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405 | TRACE("Set active cell data scalars for %s to %s", getName().c_str(), name); |
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406 | found = true; |
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407 | } |
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408 | } |
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409 | } |
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410 | } |
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411 | #ifdef WANT_TRACE |
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412 | if (_dataSet->GetPointData() != NULL) { |
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413 | if (_dataSet->GetPointData()->GetScalars() != NULL) { |
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414 | TRACE("Point data scalars for %s: %s", getName().c_str(), _dataSet->GetPointData()->GetScalars()->GetName()); |
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415 | } else { |
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416 | TRACE("NULL point data scalars for %s", getName().c_str()); |
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417 | } |
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418 | } |
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419 | if (_dataSet->GetCellData() != NULL) { |
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420 | if (_dataSet->GetCellData()->GetScalars() != NULL) { |
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421 | TRACE("Cell data scalars for %s: %s", getName().c_str(), _dataSet->GetCellData()->GetScalars()->GetName()); |
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422 | } else { |
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423 | TRACE("NULL cell data scalars for %s", getName().c_str()); |
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424 | } |
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425 | } |
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426 | #endif |
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427 | return found; |
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428 | } |
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429 | |
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430 | /** |
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431 | * \brief Get the active scalar array field name |
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432 | */ |
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433 | const char *DataSet::getActiveScalarsName() const |
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434 | { |
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435 | if (_dataSet != NULL) { |
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436 | if (_dataSet->GetPointData() != NULL && |
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437 | _dataSet->GetPointData()->GetScalars() != NULL) { |
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438 | return _dataSet->GetPointData()->GetScalars()->GetName(); |
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439 | } |
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440 | #ifdef DEBUG |
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441 | TRACE("No point scalars"); |
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442 | #endif |
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443 | if (_dataSet->GetCellData() != NULL && |
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444 | _dataSet->GetCellData()->GetScalars() != NULL) { |
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445 | return _dataSet->GetCellData()->GetScalars()->GetName(); |
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446 | } |
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447 | #ifdef DEBUG |
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448 | TRACE("No cell scalars"); |
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449 | #endif |
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450 | } |
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451 | return NULL; |
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452 | } |
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453 | |
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454 | /** |
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455 | * \brief Get the active scalar array default attribute type |
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456 | */ |
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457 | DataSet::DataAttributeType DataSet::getActiveScalarsType() const |
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458 | { |
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459 | if (_dataSet != NULL) { |
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460 | if (_dataSet->GetPointData() != NULL && |
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461 | _dataSet->GetPointData()->GetScalars() != NULL) { |
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462 | return POINT_DATA; |
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463 | } |
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464 | #ifdef DEBUG |
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465 | TRACE("No point scalars"); |
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466 | #endif |
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467 | if (_dataSet->GetCellData() != NULL && |
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468 | _dataSet->GetCellData()->GetScalars() != NULL) { |
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469 | return CELL_DATA; |
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470 | } |
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471 | #ifdef DEBUG |
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472 | TRACE("No cell scalars"); |
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473 | #endif |
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474 | } |
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475 | return POINT_DATA; |
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476 | } |
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477 | |
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478 | /** |
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479 | * \brief Set the ative vector array to the named field |
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480 | */ |
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481 | bool DataSet::setActiveVectors(const char *name) |
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482 | { |
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483 | bool found = false; |
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484 | if (_dataSet != NULL) { |
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485 | if (_dataSet->GetPointData() != NULL) { |
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486 | if (_dataSet->GetPointData()->SetActiveVectors(name) >= 0) { |
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487 | TRACE("Set active point data vectors to %s", name); |
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488 | found = true; |
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489 | } |
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490 | } |
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491 | if (_dataSet->GetCellData() != NULL) { |
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492 | if (_dataSet->GetCellData()->SetActiveVectors(name) >= 0) { |
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493 | TRACE("Set active cell data vectors to %s", name); |
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494 | found = true; |
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495 | } |
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496 | } |
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497 | } |
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498 | |
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499 | return found; |
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500 | } |
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501 | |
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502 | /** |
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503 | * \brief Get the active vector array default attribute type |
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504 | */ |
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505 | DataSet::DataAttributeType DataSet::getActiveVectorsType() const |
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506 | { |
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507 | if (_dataSet != NULL) { |
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508 | if (_dataSet->GetPointData() != NULL && |
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509 | _dataSet->GetPointData()->GetVectors() != NULL) { |
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510 | return POINT_DATA; |
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511 | } |
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512 | #ifdef DEBUG |
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513 | TRACE("No point vectors"); |
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514 | #endif |
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515 | if (_dataSet->GetCellData() != NULL && |
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516 | _dataSet->GetCellData()->GetVectors() != NULL) { |
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517 | return CELL_DATA; |
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518 | } |
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519 | #ifdef DEBUG |
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520 | TRACE("No cell vectors"); |
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521 | #endif |
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522 | } |
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523 | return POINT_DATA; |
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524 | } |
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525 | |
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526 | /** |
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527 | * \brief Get the active vector array field name |
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528 | */ |
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529 | const char *DataSet::getActiveVectorsName() const |
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530 | { |
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531 | if (_dataSet != NULL) { |
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532 | if (_dataSet->GetPointData() != NULL && |
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533 | _dataSet->GetPointData()->GetVectors() != NULL) { |
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534 | return _dataSet->GetPointData()->GetVectors()->GetName(); |
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535 | } |
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536 | #ifdef DEBUG |
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537 | TRACE("No point vectors"); |
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538 | #endif |
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539 | if (_dataSet->GetCellData() != NULL && |
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540 | _dataSet->GetCellData()->GetVectors() != NULL) { |
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541 | return _dataSet->GetCellData()->GetVectors()->GetName(); |
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542 | } |
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543 | #ifdef DEBUG |
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544 | TRACE("No cell vectors"); |
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545 | #endif |
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546 | } |
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547 | return NULL; |
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548 | } |
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549 | |
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550 | void DataSet::setDefaultArrays() |
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551 | { |
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552 | if (_dataSet->GetPointData() != NULL && |
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553 | _dataSet->GetPointData()->GetScalars() == NULL && |
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554 | _dataSet->GetPointData()->GetNumberOfArrays() > 0) { |
---|
555 | for (int i = 0; i < _dataSet->GetPointData()->GetNumberOfArrays(); i++) { |
---|
556 | if (_dataSet->GetPointData()->GetArray(i) != NULL && |
---|
557 | _dataSet->GetPointData()->GetArray(i)->GetNumberOfComponents() == 1) { |
---|
558 | TRACE("Setting point scalars to '%s'", _dataSet->GetPointData()->GetArrayName(i)); |
---|
559 | _dataSet->GetPointData()->SetActiveScalars(_dataSet->GetPointData()->GetArrayName(i)); |
---|
560 | break; |
---|
561 | } |
---|
562 | } |
---|
563 | } |
---|
564 | if (_dataSet->GetPointData() != NULL && |
---|
565 | _dataSet->GetPointData()->GetVectors() == NULL && |
---|
566 | _dataSet->GetPointData()->GetNumberOfArrays() > 0) { |
---|
567 | for (int i = 0; i < _dataSet->GetPointData()->GetNumberOfArrays(); i++) { |
---|
568 | if (_dataSet->GetPointData()->GetArray(i) != NULL && |
---|
569 | _dataSet->GetPointData()->GetArray(i)->GetNumberOfComponents() == 3) { |
---|
570 | TRACE("Setting point vectors to '%s'", _dataSet->GetPointData()->GetArrayName(i)); |
---|
571 | _dataSet->GetPointData()->SetActiveVectors(_dataSet->GetPointData()->GetArrayName(i)); |
---|
572 | break; |
---|
573 | } |
---|
574 | } |
---|
575 | } |
---|
576 | if (_dataSet->GetCellData() != NULL && |
---|
577 | _dataSet->GetCellData()->GetScalars() == NULL && |
---|
578 | _dataSet->GetCellData()->GetNumberOfArrays() > 0) { |
---|
579 | for (int i = 0; i < _dataSet->GetCellData()->GetNumberOfArrays(); i++) { |
---|
580 | if (_dataSet->GetCellData()->GetArray(i) != NULL && |
---|
581 | _dataSet->GetCellData()->GetArray(i)->GetNumberOfComponents() == 1) { |
---|
582 | TRACE("Setting cell scalars to '%s'", _dataSet->GetCellData()->GetArrayName(i)); |
---|
583 | _dataSet->GetCellData()->SetActiveScalars(_dataSet->GetCellData()->GetArrayName(i)); |
---|
584 | break; |
---|
585 | } |
---|
586 | } |
---|
587 | } |
---|
588 | if (_dataSet->GetCellData() != NULL && |
---|
589 | _dataSet->GetCellData()->GetVectors() == NULL && |
---|
590 | _dataSet->GetCellData()->GetNumberOfArrays() > 0) { |
---|
591 | for (int i = 0; i < _dataSet->GetCellData()->GetNumberOfArrays(); i++) { |
---|
592 | if (_dataSet->GetCellData()->GetArray(i) != NULL && |
---|
593 | _dataSet->GetCellData()->GetArray(i)->GetNumberOfComponents() == 3) { |
---|
594 | TRACE("Setting cell vectors to '%s'", _dataSet->GetCellData()->GetArrayName(i)); |
---|
595 | _dataSet->GetCellData()->SetActiveVectors(_dataSet->GetCellData()->GetArrayName(i)); |
---|
596 | break; |
---|
597 | } |
---|
598 | } |
---|
599 | } |
---|
600 | } |
---|
601 | |
---|
602 | bool DataSet::getFieldInfo(const char *fieldName, |
---|
603 | DataAttributeType *type, |
---|
604 | int *numComponents) const |
---|
605 | { |
---|
606 | if (_dataSet->GetPointData() != NULL && |
---|
607 | _dataSet->GetPointData()->GetAbstractArray(fieldName) != NULL) { |
---|
608 | if (type != NULL) |
---|
609 | *type = POINT_DATA; |
---|
610 | if (numComponents != NULL) |
---|
611 | *numComponents = _dataSet->GetPointData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
612 | return true; |
---|
613 | } else if (_dataSet->GetCellData() != NULL && |
---|
614 | _dataSet->GetCellData()->GetAbstractArray(fieldName) != NULL) { |
---|
615 | if (type != NULL) |
---|
616 | *type = CELL_DATA; |
---|
617 | if (numComponents != NULL) |
---|
618 | *numComponents = _dataSet->GetCellData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
619 | return true; |
---|
620 | } else if (_dataSet->GetFieldData() != NULL && |
---|
621 | _dataSet->GetFieldData()->GetAbstractArray(fieldName) != NULL) { |
---|
622 | if (type != NULL) |
---|
623 | *type = FIELD_DATA; |
---|
624 | if (numComponents != NULL) |
---|
625 | *numComponents = _dataSet->GetFieldData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
626 | return true; |
---|
627 | } |
---|
628 | return false; |
---|
629 | } |
---|
630 | |
---|
631 | bool DataSet::getFieldInfo(const char *fieldName, |
---|
632 | DataAttributeType type, |
---|
633 | int *numComponents) const |
---|
634 | { |
---|
635 | switch (type) { |
---|
636 | case POINT_DATA: |
---|
637 | if (_dataSet->GetPointData() != NULL && |
---|
638 | _dataSet->GetPointData()->GetAbstractArray(fieldName) != NULL) { |
---|
639 | if (numComponents != NULL) |
---|
640 | *numComponents = _dataSet->GetPointData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
641 | return true; |
---|
642 | } else |
---|
643 | return false; |
---|
644 | break; |
---|
645 | case CELL_DATA: |
---|
646 | if (_dataSet->GetCellData() != NULL && |
---|
647 | _dataSet->GetCellData()->GetAbstractArray(fieldName) != NULL) { |
---|
648 | if (numComponents != NULL) |
---|
649 | *numComponents = _dataSet->GetCellData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
650 | return true; |
---|
651 | } else |
---|
652 | return false; |
---|
653 | break; |
---|
654 | case FIELD_DATA: |
---|
655 | if (_dataSet->GetFieldData() != NULL && |
---|
656 | _dataSet->GetFieldData()->GetAbstractArray(fieldName) != NULL) { |
---|
657 | if (numComponents != NULL) |
---|
658 | *numComponents = _dataSet->GetFieldData()->GetAbstractArray(fieldName)->GetNumberOfComponents(); |
---|
659 | return true; |
---|
660 | } else |
---|
661 | return false; |
---|
662 | break; |
---|
663 | default: |
---|
664 | ; |
---|
665 | } |
---|
666 | return false; |
---|
667 | } |
---|
668 | |
---|
669 | /** |
---|
670 | * \brief Get the list of field names in the DataSet |
---|
671 | * |
---|
672 | * \param[in,out] names The field names will be appended to this list |
---|
673 | * \param[in] type The DataAttributeType: e.g. POINT_DATA, CELL_DATA |
---|
674 | * \param[in] numComponents Filter list by number of components, -1 means to |
---|
675 | * return all fields regardless of dimension |
---|
676 | */ |
---|
677 | void DataSet::getFieldNames(std::vector<std::string>& names, |
---|
678 | DataAttributeType type, int numComponents) const |
---|
679 | { |
---|
680 | if (_dataSet == NULL) |
---|
681 | return; |
---|
682 | switch (type) { |
---|
683 | case POINT_DATA: |
---|
684 | if (_dataSet->GetPointData() != NULL) { |
---|
685 | for (int i = 0; i < _dataSet->GetPointData()->GetNumberOfArrays(); i++) { |
---|
686 | if (numComponents == -1 || |
---|
687 | (_dataSet->GetPointData()->GetAbstractArray(i) != NULL && |
---|
688 | _dataSet->GetPointData()->GetAbstractArray(i)->GetNumberOfComponents() == numComponents)) { |
---|
689 | names.push_back(_dataSet->GetPointData()->GetArrayName(i)); |
---|
690 | } |
---|
691 | } |
---|
692 | } |
---|
693 | break; |
---|
694 | case CELL_DATA: |
---|
695 | if (_dataSet->GetCellData() != NULL) { |
---|
696 | for (int i = 0; i < _dataSet->GetCellData()->GetNumberOfArrays(); i++) { |
---|
697 | if (numComponents == -1 || |
---|
698 | (_dataSet->GetCellData()->GetAbstractArray(i) != NULL && |
---|
699 | _dataSet->GetCellData()->GetAbstractArray(i)->GetNumberOfComponents() == numComponents)) { |
---|
700 | names.push_back(_dataSet->GetCellData()->GetArrayName(i)); |
---|
701 | } |
---|
702 | } |
---|
703 | } |
---|
704 | break; |
---|
705 | case FIELD_DATA: |
---|
706 | if (_dataSet->GetFieldData() != NULL) { |
---|
707 | for (int i = 0; i < _dataSet->GetFieldData()->GetNumberOfArrays(); i++) { |
---|
708 | if (numComponents == -1 || |
---|
709 | (_dataSet->GetFieldData()->GetAbstractArray(i) != NULL && |
---|
710 | _dataSet->GetFieldData()->GetAbstractArray(i)->GetNumberOfComponents() == numComponents)) { |
---|
711 | names.push_back(_dataSet->GetFieldData()->GetArrayName(i)); |
---|
712 | } |
---|
713 | } |
---|
714 | } |
---|
715 | break; |
---|
716 | default: |
---|
717 | ERROR("Unknown DataAttributeType %d", type); |
---|
718 | } |
---|
719 | } |
---|
720 | |
---|
721 | /** |
---|
722 | * \brief Get the range of scalar values in the DataSet |
---|
723 | */ |
---|
724 | void DataSet::getScalarRange(double minmax[2]) const |
---|
725 | { |
---|
726 | if (_dataSet == NULL) |
---|
727 | return; |
---|
728 | if (_dataSet->GetPointData() != NULL && |
---|
729 | _dataSet->GetPointData()->GetScalars() != NULL) { |
---|
730 | _dataSet->GetPointData()->GetScalars()->GetRange(minmax, -1); |
---|
731 | } else if (_dataSet->GetCellData() != NULL && |
---|
732 | _dataSet->GetCellData()->GetScalars() != NULL) { |
---|
733 | _dataSet->GetCellData()->GetScalars()->GetRange(minmax, -1); |
---|
734 | } |
---|
735 | } |
---|
736 | |
---|
737 | /** |
---|
738 | * \brief Get the range of a vector component in the DataSet |
---|
739 | * |
---|
740 | * \param[out] minmax The data range |
---|
741 | * \param[in] component The field component, -1 means magnitude |
---|
742 | */ |
---|
743 | void DataSet::getVectorRange(double minmax[2], int component) const |
---|
744 | { |
---|
745 | if (_dataSet == NULL) |
---|
746 | return; |
---|
747 | if (_dataSet->GetPointData() != NULL && |
---|
748 | _dataSet->GetPointData()->GetVectors() != NULL) { |
---|
749 | _dataSet->GetPointData()->GetVectors()->GetRange(minmax, component); |
---|
750 | } else if (_dataSet->GetCellData() != NULL && |
---|
751 | _dataSet->GetCellData()->GetVectors() != NULL) { |
---|
752 | _dataSet->GetCellData()->GetVectors()->GetRange(minmax, component); |
---|
753 | } |
---|
754 | } |
---|
755 | |
---|
756 | /** |
---|
757 | * \brief Get the range of values for the named field in the DataSet |
---|
758 | * |
---|
759 | * \param[out] minmax The data range |
---|
760 | * \param[in] fieldName The array name |
---|
761 | * \param[in] type The DataAttributeType |
---|
762 | * \param[in] component The field component, -1 means magnitude |
---|
763 | * \return boolean indicating if field was found |
---|
764 | */ |
---|
765 | bool DataSet::getDataRange(double minmax[2], const char *fieldName, |
---|
766 | DataAttributeType type, int component) const |
---|
767 | { |
---|
768 | if (_dataSet == NULL) |
---|
769 | return false; |
---|
770 | switch (type) { |
---|
771 | case POINT_DATA: |
---|
772 | if (_dataSet->GetPointData() != NULL && |
---|
773 | _dataSet->GetPointData()->GetArray(fieldName) != NULL) { |
---|
774 | _dataSet->GetPointData()->GetArray(fieldName)->GetRange(minmax, component); |
---|
775 | return true; |
---|
776 | } else { |
---|
777 | return false; |
---|
778 | } |
---|
779 | break; |
---|
780 | case CELL_DATA: |
---|
781 | if (_dataSet->GetCellData() != NULL && |
---|
782 | _dataSet->GetCellData()->GetArray(fieldName) != NULL) { |
---|
783 | _dataSet->GetCellData()->GetArray(fieldName)->GetRange(minmax, component); |
---|
784 | return true; |
---|
785 | } else { |
---|
786 | return false; |
---|
787 | } |
---|
788 | break; |
---|
789 | case FIELD_DATA: |
---|
790 | if (_dataSet->GetFieldData() != NULL && |
---|
791 | _dataSet->GetFieldData()->GetArray(fieldName) != NULL) { |
---|
792 | _dataSet->GetFieldData()->GetArray(fieldName)->GetRange(minmax, component); |
---|
793 | return true; |
---|
794 | } else { |
---|
795 | return false; |
---|
796 | } |
---|
797 | break; |
---|
798 | default: |
---|
799 | ERROR("Unknown DataAttributeType %d", type); |
---|
800 | break; |
---|
801 | } |
---|
802 | return false; |
---|
803 | } |
---|
804 | |
---|
805 | /** |
---|
806 | * \brief Get the bounds the DataSet |
---|
807 | */ |
---|
808 | void DataSet::getBounds(double bounds[6]) const |
---|
809 | { |
---|
810 | _dataSet->GetBounds(bounds); |
---|
811 | } |
---|
812 | |
---|
813 | /** |
---|
814 | * \brief Get the range of cell AABB diagonal lengths in the DataSet |
---|
815 | */ |
---|
816 | void DataSet::getCellSizeRange(double minmax[2], double *average) |
---|
817 | { |
---|
818 | // Check for cached values |
---|
819 | if (_cellSizeRange[0] >= 0.0) { |
---|
820 | minmax[0] = _cellSizeRange[0]; |
---|
821 | minmax[1] = _cellSizeRange[1]; |
---|
822 | *average = _cellSizeAverage; |
---|
823 | return; |
---|
824 | } |
---|
825 | |
---|
826 | getCellSizeRange(_dataSet, minmax, average); |
---|
827 | |
---|
828 | // Save values in cache |
---|
829 | _cellSizeRange[0] = minmax[0]; |
---|
830 | _cellSizeRange[1] = minmax[1]; |
---|
831 | _cellSizeAverage = *average; |
---|
832 | } |
---|
833 | |
---|
834 | /** |
---|
835 | * \brief Get the range of cell AABB diagonal lengths in the DataSet |
---|
836 | */ |
---|
837 | void DataSet::getCellSizeRange(vtkDataSet *dataSet, double minmax[2], double *average) |
---|
838 | { |
---|
839 | if (dataSet == NULL || |
---|
840 | dataSet->GetNumberOfCells() < 1) { |
---|
841 | minmax[0] = 1; |
---|
842 | minmax[1] = 1; |
---|
843 | *average = 1; |
---|
844 | return; |
---|
845 | } |
---|
846 | |
---|
847 | minmax[0] = DBL_MAX; |
---|
848 | minmax[1] = -DBL_MAX; |
---|
849 | |
---|
850 | *average = 0; |
---|
851 | for (int i = 0; i < dataSet->GetNumberOfCells(); i++) { |
---|
852 | double length2 = dataSet->GetCell(i)->GetLength2(); |
---|
853 | if (length2 < minmax[0]) |
---|
854 | minmax[0] = length2; |
---|
855 | if (length2 > minmax[1]) |
---|
856 | minmax[1] = length2; |
---|
857 | *average += length2; |
---|
858 | } |
---|
859 | if (minmax[0] == DBL_MAX) |
---|
860 | minmax[0] = 1; |
---|
861 | if (minmax[1] == -DBL_MAX) |
---|
862 | minmax[1] = 1; |
---|
863 | |
---|
864 | minmax[0] = sqrt(minmax[0]); |
---|
865 | minmax[1] = sqrt(minmax[1]); |
---|
866 | *average = sqrt(*average/((double)dataSet->GetNumberOfCells())); |
---|
867 | } |
---|
868 | |
---|
869 | /** |
---|
870 | * \brief Get nearest data value given world coordinates x,y,z |
---|
871 | * |
---|
872 | * Note: no interpolation is performed on data |
---|
873 | * |
---|
874 | * \param[in] x World x coordinate to probe |
---|
875 | * \param[in] y World y coordinate to probe |
---|
876 | * \param[in] z World z coordinate to probe |
---|
877 | * \param[out] value On success, contains the data value |
---|
878 | * \return boolean indicating success or failure |
---|
879 | */ |
---|
880 | bool DataSet::getScalarValue(double x, double y, double z, double *value) const |
---|
881 | { |
---|
882 | if (_dataSet == NULL) |
---|
883 | return false; |
---|
884 | if (_dataSet->GetPointData() == NULL || |
---|
885 | _dataSet->GetPointData()->GetScalars() == NULL) { |
---|
886 | return false; |
---|
887 | } |
---|
888 | vtkIdType pt = _dataSet->FindPoint(x, y, z); |
---|
889 | if (pt < 0) |
---|
890 | return false; |
---|
891 | *value = _dataSet->GetPointData()->GetScalars()->GetComponent(pt, 0); |
---|
892 | return true; |
---|
893 | } |
---|
894 | |
---|
895 | /** |
---|
896 | * \brief Get nearest vector data value given world coordinates x,y,z |
---|
897 | * |
---|
898 | * Note: no interpolation is performed on data |
---|
899 | * |
---|
900 | * \param[in] x World x coordinate to probe |
---|
901 | * \param[in] y World y coordinate to probe |
---|
902 | * \param[in] z World z coordinate to probe |
---|
903 | * \param[out] vector On success, contains the data values |
---|
904 | * \return boolean indicating success or failure |
---|
905 | */ |
---|
906 | bool DataSet::getVectorValue(double x, double y, double z, double vector[3]) const |
---|
907 | { |
---|
908 | if (_dataSet == NULL) |
---|
909 | return false; |
---|
910 | if (_dataSet->GetPointData() == NULL || |
---|
911 | _dataSet->GetPointData()->GetVectors() == NULL) { |
---|
912 | return false; |
---|
913 | } |
---|
914 | vtkIdType pt = _dataSet->FindPoint(x, y, z); |
---|
915 | if (pt < 0) |
---|
916 | return false; |
---|
917 | assert(_dataSet->GetPointData()->GetVectors()->GetNumberOfComponents() == 3); |
---|
918 | _dataSet->GetPointData()->GetVectors()->GetTuple(pt, vector); |
---|
919 | return true; |
---|
920 | } |
---|
921 | |
---|
922 | void DataSet::print() const |
---|
923 | { |
---|
924 | print(_dataSet); |
---|
925 | } |
---|
926 | |
---|
927 | void DataSet::print(vtkDataSet *ds) |
---|
928 | { |
---|
929 | if (ds == NULL) |
---|
930 | return; |
---|
931 | |
---|
932 | TRACE("DataSet class: %s", ds->GetClassName()); |
---|
933 | |
---|
934 | TRACE("DataSet memory: %g MiB", ds->GetActualMemorySize()/1024.); |
---|
935 | |
---|
936 | double bounds[6]; |
---|
937 | ds->GetBounds(bounds); |
---|
938 | |
---|
939 | // Topology |
---|
940 | TRACE("DataSet bounds: %g %g %g %g %g %g", |
---|
941 | bounds[0], bounds[1], |
---|
942 | bounds[2], bounds[3], |
---|
943 | bounds[4], bounds[5]); |
---|
944 | TRACE("Points: %d Cells: %d", ds->GetNumberOfPoints(), ds->GetNumberOfCells()); |
---|
945 | |
---|
946 | double dataRange[2]; |
---|
947 | if (ds->GetPointData() != NULL) { |
---|
948 | TRACE("PointData arrays: %d", ds->GetPointData()->GetNumberOfArrays()); |
---|
949 | for (int i = 0; i < ds->GetPointData()->GetNumberOfArrays(); i++) { |
---|
950 | if (ds->GetPointData()->GetArray(i) != NULL) { |
---|
951 | ds->GetPointData()->GetArray(i)->GetRange(dataRange, -1); |
---|
952 | TRACE("PointData[%d]: '%s' comp:%d, (%g,%g)", i, |
---|
953 | ds->GetPointData()->GetArrayName(i), |
---|
954 | ds->GetPointData()->GetAbstractArray(i)->GetNumberOfComponents(), |
---|
955 | dataRange[0], dataRange[1]); |
---|
956 | } else { |
---|
957 | TRACE("PointData[%d]: '%s' comp:%d", i, |
---|
958 | ds->GetPointData()->GetArrayName(i), |
---|
959 | ds->GetPointData()->GetAbstractArray(i)->GetNumberOfComponents()); |
---|
960 | } |
---|
961 | } |
---|
962 | if (ds->GetPointData()->GetScalars() != NULL) { |
---|
963 | TRACE("Active point scalars: %s", ds->GetPointData()->GetScalars()->GetName()); |
---|
964 | } |
---|
965 | if (ds->GetPointData()->GetVectors() != NULL) { |
---|
966 | TRACE("Active point vectors: %s", ds->GetPointData()->GetVectors()->GetName()); |
---|
967 | } |
---|
968 | } |
---|
969 | if (ds->GetCellData() != NULL) { |
---|
970 | TRACE("CellData arrays: %d", ds->GetCellData()->GetNumberOfArrays()); |
---|
971 | for (int i = 0; i < ds->GetCellData()->GetNumberOfArrays(); i++) { |
---|
972 | if (ds->GetCellData()->GetArray(i) != NULL) { |
---|
973 | ds->GetCellData()->GetArray(i)->GetRange(dataRange, -1); |
---|
974 | TRACE("CellData[%d]: '%s' comp:%d, (%g,%g)", i, |
---|
975 | ds->GetCellData()->GetArrayName(i), |
---|
976 | ds->GetCellData()->GetAbstractArray(i)->GetNumberOfComponents(), |
---|
977 | dataRange[0], dataRange[1]); |
---|
978 | } else { |
---|
979 | TRACE("CellData[%d]: '%s' comp:%d", i, |
---|
980 | ds->GetCellData()->GetArrayName(i), |
---|
981 | ds->GetCellData()->GetAbstractArray(i)->GetNumberOfComponents()); |
---|
982 | } |
---|
983 | } |
---|
984 | if (ds->GetCellData()->GetScalars() != NULL) { |
---|
985 | TRACE("Active cell scalars: %s", ds->GetCellData()->GetScalars()->GetName()); |
---|
986 | } |
---|
987 | if (ds->GetCellData()->GetVectors() != NULL) { |
---|
988 | TRACE("Active cell vectors: %s", ds->GetCellData()->GetVectors()->GetName()); |
---|
989 | } |
---|
990 | } |
---|
991 | if (ds->GetFieldData() != NULL) { |
---|
992 | TRACE("FieldData arrays: %d", ds->GetFieldData()->GetNumberOfArrays()); |
---|
993 | for (int i = 0; i < ds->GetFieldData()->GetNumberOfArrays(); i++) { |
---|
994 | if (ds->GetFieldData()->GetArray(i) != NULL) { |
---|
995 | ds->GetFieldData()->GetArray(i)->GetRange(dataRange, -1); |
---|
996 | TRACE("FieldData[%d]: '%s' comp:%d, tuples:%d (%g,%g)", i, |
---|
997 | ds->GetFieldData()->GetArrayName(i), |
---|
998 | ds->GetFieldData()->GetAbstractArray(i)->GetNumberOfComponents(), |
---|
999 | ds->GetFieldData()->GetAbstractArray(i)->GetNumberOfTuples(), |
---|
1000 | dataRange[0], dataRange[1]); |
---|
1001 | } else { |
---|
1002 | TRACE("FieldData[%d]: '%s' comp:%d, tuples:%d", i, |
---|
1003 | ds->GetFieldData()->GetArrayName(i), |
---|
1004 | ds->GetFieldData()->GetAbstractArray(i)->GetNumberOfComponents(), |
---|
1005 | ds->GetFieldData()->GetAbstractArray(i)->GetNumberOfTuples()); |
---|
1006 | } |
---|
1007 | } |
---|
1008 | } |
---|
1009 | } |
---|
1010 | |
---|