1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2004-2013 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 <vtkSmartPointer.h> |
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9 | #include <vtkImageData.h> |
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10 | #include <vtkImageActor.h> |
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11 | #include <vtkImageProperty.h> |
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12 | #include <vtkImageMapper3D.h> |
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13 | #include <vtkLookupTable.h> |
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14 | |
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15 | #include "Image.h" |
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16 | #include "Trace.h" |
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17 | |
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18 | using namespace VtkVis; |
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19 | |
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20 | Image::Image() : |
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21 | GraphicsObject(), |
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22 | _colorMap(NULL) |
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23 | { |
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24 | } |
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25 | |
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26 | Image::~Image() |
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27 | { |
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28 | TRACE("Deleting Image"); |
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29 | } |
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30 | |
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31 | void Image::initProp() |
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32 | { |
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33 | if (_prop == NULL) { |
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34 | _prop = vtkSmartPointer<vtkImageActor>::New(); |
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35 | vtkImageProperty *property = getImageProperty(); |
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36 | property->SetInterpolationTypeToLinear(); |
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37 | property->SetBackingColor(_color[0], _color[1], _color[2]); |
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38 | property->BackingOff(); |
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39 | if (_dataSet != NULL) |
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40 | _opacity = _dataSet->getOpacity(); |
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41 | property->SetOpacity(_opacity); |
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42 | |
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43 | if (_dataSet != NULL) |
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44 | setVisibility(_dataSet->getVisibility()); |
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45 | } |
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46 | } |
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47 | |
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48 | void Image::update() |
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49 | { |
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50 | if (_dataSet == NULL) |
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51 | return; |
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52 | |
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53 | TRACE("DataSet: %s", _dataSet->getName().c_str()); |
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54 | |
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55 | vtkDataSet *ds = _dataSet->getVtkDataSet(); |
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56 | vtkImageData *imageData = vtkImageData::SafeDownCast(ds); |
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57 | |
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58 | if (imageData == NULL) { |
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59 | ERROR("DataSet is not an image."); |
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60 | return; |
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61 | } |
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62 | |
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63 | initProp(); |
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64 | |
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65 | vtkImageActor *actor = getImageActor(); |
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66 | actor->SetInputData(imageData); |
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67 | actor->InterpolateOn(); |
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68 | |
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69 | vtkImageMapper3D *mapper = getImageMapper(); |
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70 | mapper->Update(); |
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71 | } |
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72 | |
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73 | void Image::setColor(float color[3]) |
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74 | { |
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75 | GraphicsObject::setColor(color); |
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76 | |
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77 | if (getImageProperty() != NULL) { |
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78 | getImageProperty()->SetBackingColor(color[0], color[1], color[2]); |
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79 | } |
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80 | } |
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81 | |
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82 | /** |
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83 | * \brief Associate a colormap lookup table with the DataSet |
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84 | */ |
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85 | void Image::setColorMap(ColorMap *cmap) |
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86 | { |
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87 | if (cmap == NULL) { |
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88 | _colorMap = NULL; |
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89 | _lut = NULL; |
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90 | if (getImageProperty() != NULL) { |
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91 | getImageProperty()->SetLookupTable(NULL); |
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92 | } |
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93 | return; |
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94 | } |
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95 | |
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96 | _colorMap = cmap; |
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97 | |
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98 | if (_lut == NULL) { |
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99 | _lut = vtkSmartPointer<vtkLookupTable>::New(); |
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100 | if (getImageProperty() != NULL) { |
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101 | getImageProperty()->UseLookupTableScalarRangeOn(); |
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102 | getImageProperty()->SetLookupTable(_lut); |
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103 | } |
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104 | _lut->DeepCopy(cmap->getLookupTable()); |
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105 | _lut->SetRange(_dataRange); |
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106 | } else { |
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107 | double range[2]; |
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108 | _lut->GetTableRange(range); |
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109 | _lut->DeepCopy(cmap->getLookupTable()); |
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110 | _lut->SetRange(range); |
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111 | _lut->Modified(); |
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112 | } |
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113 | } |
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114 | |
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115 | void Image::setClippingPlanes(vtkPlaneCollection *planes) |
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116 | { |
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117 | vtkImageMapper3D *mapper = getImageMapper(); |
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118 | if (mapper != NULL) { |
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119 | mapper->SetClippingPlanes(planes); |
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120 | } |
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121 | } |
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