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