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 | */ |
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6 | #include "nanovis.h" |
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7 | |
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8 | #include <vrmath/Vector3f.h> |
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9 | #include <vrmath/Vector4f.h> |
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10 | |
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11 | #include "NvVectorField.h" |
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12 | #include "NvParticleRenderer.h" |
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13 | |
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14 | using namespace vrmath; |
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15 | |
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16 | NvVectorField::NvVectorField() : |
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17 | _vectorFieldId(0), |
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18 | _volPtr(NULL), |
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19 | _activated(true), |
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20 | _origin(0, 0, 0), |
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21 | _scaleX(1), |
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22 | _scaleY(1), |
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23 | _scaleZ(1), |
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24 | _max(1), |
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25 | _deviceVisible(false) |
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26 | { |
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27 | } |
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28 | |
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29 | NvVectorField::~NvVectorField() |
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30 | { |
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31 | std::map<std::string, NvParticleRenderer *>::iterator iter; |
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32 | for (iter = _particleRendererMap.begin(); |
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33 | iter != _particleRendererMap.end(); iter++) { |
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34 | delete (*iter).second; |
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35 | } |
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36 | } |
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37 | |
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38 | void |
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39 | NvVectorField::setVectorField(Volume *volPtr, const Vector3f& origin, |
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40 | float scaleX, float scaleY, float scaleZ, |
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41 | float max) |
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42 | { |
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43 | _volPtr = volPtr; |
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44 | _origin = origin; |
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45 | _scaleX = scaleX; |
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46 | _scaleY = scaleY; |
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47 | _scaleZ = scaleZ; |
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48 | _max = max; |
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49 | _vectorFieldId = volPtr->textureID(); |
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50 | } |
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51 | |
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52 | void |
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53 | NvVectorField::addDeviceShape(const std::string& name, |
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54 | const NvDeviceShape& shape) |
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55 | { |
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56 | _shapeMap[name] = shape; |
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57 | } |
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58 | |
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59 | void NvVectorField::removeDeviceShape(const std::string& name) |
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60 | { |
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61 | std::map<std::string, NvDeviceShape>::iterator iter = _shapeMap.find(name); |
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62 | if (iter != _shapeMap.end()) _shapeMap.erase(iter); |
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63 | } |
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64 | |
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65 | void NvVectorField::initialize() |
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66 | { |
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67 | std::map<std::string, NvParticleRenderer *>::iterator iter; |
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68 | for (iter = _particleRendererMap.begin(); |
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69 | iter != _particleRendererMap.end(); iter++) { |
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70 | if ((*iter).second) (*iter).second->initialize(); |
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71 | } |
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72 | } |
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73 | |
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74 | void NvVectorField::reset() |
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75 | { |
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76 | std::map<std::string, NvParticleRenderer *>::iterator iter; |
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77 | for (iter = _particleRendererMap.begin(); |
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78 | iter != _particleRendererMap.end(); iter++) { |
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79 | if ((*iter).second) (*iter).second->reset(); |
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80 | } |
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81 | } |
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82 | |
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83 | void NvVectorField::setPlaneAxis(const std::string& name, int axis) |
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84 | { |
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85 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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86 | if (iter != _particleRendererMap.end()) { |
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87 | (*iter).second->setAxis(axis); |
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88 | } |
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89 | |
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90 | } |
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91 | |
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92 | void NvVectorField::setPlanePos(const std::string& name, float pos) |
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93 | { |
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94 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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95 | if (iter != _particleRendererMap.end()) { |
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96 | (*iter).second->setPos(pos); |
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97 | } |
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98 | } |
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99 | |
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100 | void NvVectorField::addPlane(const std::string& name) |
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101 | { |
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102 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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103 | NvParticleRenderer *renderer = NULL; |
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104 | if (iter != _particleRendererMap.end()) { |
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105 | if ((*iter).second != 0) { |
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106 | renderer = (*iter).second; |
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107 | } else { |
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108 | renderer = (*iter).second = new NvParticleRenderer(NMESH, NMESH); |
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109 | } |
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110 | } else { |
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111 | renderer = new NvParticleRenderer(NMESH, NMESH); |
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112 | _particleRendererMap[name] = renderer; |
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113 | } |
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114 | |
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115 | renderer->setVectorField(_vectorFieldId, _origin, _scaleX, _scaleY, _scaleZ, _max); |
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116 | if (renderer) { |
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117 | renderer->initialize(); |
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118 | } |
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119 | } |
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120 | |
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121 | void NvVectorField::removePlane(const std::string& name) |
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122 | { |
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123 | std::map<std::string, NvParticleRenderer* >::iterator iter = _particleRendererMap.find(name); |
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124 | if (iter != _particleRendererMap.end()) { |
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125 | delete (*iter).second; |
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126 | _particleRendererMap.erase(iter); |
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127 | } |
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128 | } |
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129 | |
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130 | void NvVectorField::activatePlane(const std::string& name) |
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131 | { |
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132 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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133 | if (iter != _particleRendererMap.end()) { |
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134 | (*iter).second->active(true); |
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135 | } |
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136 | } |
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137 | |
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138 | void NvVectorField::deactivatePlane(const std::string& name) |
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139 | { |
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140 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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141 | if (iter != _particleRendererMap.end()) { |
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142 | (*iter).second->active(false); |
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143 | } |
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144 | } |
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145 | |
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146 | void NvVectorField::setParticleColor(const std::string& name, const vrmath::Vector4f& color) |
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147 | { |
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148 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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149 | if (iter != _particleRendererMap.end()) { |
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150 | (*iter).second->setColor(color); |
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151 | } |
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152 | } |
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153 | |
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154 | void NvVectorField::setParticleColor(const std::string& name, float r, float g, float b, float a) |
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155 | { |
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156 | std::map<std::string, NvParticleRenderer *>::iterator iter = _particleRendererMap.find(name); |
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157 | if (iter != _particleRendererMap.end()) { |
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158 | if ((*iter).second) (*iter).second->setColor(vrmath::Vector4f(r,g,b,a)); |
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159 | } |
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160 | } |
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161 | |
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162 | void NvVectorField::advect() |
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163 | { |
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164 | std::map<std::string, NvParticleRenderer *>::iterator iter; |
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165 | for (iter = _particleRendererMap.begin(); |
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166 | iter != _particleRendererMap.end(); ++iter) { |
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167 | if ((*iter).second && (*iter).second->active()) |
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168 | (*iter).second->advect(); |
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169 | } |
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170 | } |
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171 | |
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172 | void NvVectorField::render() |
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173 | { |
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174 | std::map<std::string, NvParticleRenderer *>::iterator iter; |
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175 | for (iter = _particleRendererMap.begin(); |
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176 | iter != _particleRendererMap.end(); ++iter) { |
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177 | if ((*iter).second && (*iter).second->active()) { |
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178 | (*iter).second->render(); |
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179 | } |
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180 | } |
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181 | if (_deviceVisible) { |
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182 | drawDeviceShape(); |
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183 | } |
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184 | } |
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185 | |
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186 | void |
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187 | NvVectorField::drawDeviceShape() |
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188 | { |
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189 | glPushAttrib(GL_ENABLE_BIT); |
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190 | |
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191 | glEnable(GL_DEPTH_TEST); |
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192 | glDisable(GL_TEXTURE_2D); |
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193 | glDisable(GL_BLEND); |
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194 | |
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195 | glMatrixMode(GL_MODELVIEW); |
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196 | glPushMatrix(); |
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197 | |
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198 | Vector3f origin = _volPtr->location(); |
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199 | glTranslatef(origin.x, origin.y, origin.z); |
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200 | |
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201 | Vector3f scale = _volPtr->getPhysicalScaling(); |
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202 | glScaled(scale.x, scale.y, scale.z); |
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203 | |
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204 | Vector3f min, max; |
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205 | min.x = _volPtr->xAxis.min(); |
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206 | min.y = _volPtr->yAxis.min(); |
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207 | min.z = _volPtr->zAxis.min(); |
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208 | max.x = _volPtr->xAxis.max(); |
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209 | max.y = _volPtr->yAxis.max(); |
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210 | max.z = _volPtr->zAxis.max(); |
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211 | |
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212 | std::map<std::string, NvDeviceShape>::iterator iterShape; |
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213 | |
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214 | for (iterShape = _shapeMap.begin(); iterShape != _shapeMap.end(); |
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215 | ++iterShape) { |
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216 | NvDeviceShape& shape = (*iterShape).second; |
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217 | |
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218 | if (!shape.visible) continue; |
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219 | |
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220 | float x0, y0, z0, x1, y1, z1; |
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221 | x0 = y0 = z0 = 0.0f; |
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222 | x1 = y1 = z1 = 0.0f; |
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223 | if (max.x > min.x) { |
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224 | x0 = (shape.min.x - min.x) / (max.x - min.x); |
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225 | x1 = (shape.max.x - min.x) / (max.x - min.x); |
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226 | } |
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227 | if (max.y > min.y) { |
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228 | y0 = (shape.min.y - min.y) / (max.y - min.y); |
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229 | y1 = (shape.max.y - min.y) / (max.y - min.y); |
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230 | } |
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231 | if (max.z > min.z) { |
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232 | z0 = (shape.min.z - min.z) / (max.z - min.z); |
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233 | z1 = (shape.max.z - min.z) / (max.z - min.z); |
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234 | } |
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235 | |
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236 | TRACE("rendering box %g,%g %g,%g %g,%g", x0, x1, y0, y1, z0, z1); |
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237 | |
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238 | glColor4d(shape.color.x, shape.color.y, shape.color.z, shape.color.w); |
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239 | glLineWidth(1.2); |
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240 | glBegin(GL_LINE_LOOP); |
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241 | { |
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242 | glVertex3d(x0, y0, z0); |
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243 | glVertex3d(x1, y0, z0); |
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244 | glVertex3d(x1, y1, z0); |
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245 | glVertex3d(x0, y1, z0); |
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246 | } |
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247 | glEnd(); |
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248 | glBegin(GL_LINE_LOOP); |
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249 | { |
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250 | glVertex3d(x0, y0, z1); |
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251 | glVertex3d(x1, y0, z1); |
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252 | glVertex3d(x1, y1, z1); |
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253 | glVertex3d(x0, y1, z1); |
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254 | } |
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255 | glEnd(); |
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256 | |
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257 | glBegin(GL_LINE_LOOP); |
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258 | { |
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259 | glVertex3d(x0, y0, z0); |
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260 | glVertex3d(x0, y0, z1); |
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261 | glVertex3d(x0, y1, z1); |
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262 | glVertex3d(x0, y1, z0); |
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263 | } |
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264 | glEnd(); |
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265 | |
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266 | glBegin(GL_LINE_LOOP); |
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267 | { |
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268 | glVertex3d(x1, y0, z0); |
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269 | glVertex3d(x1, y0, z1); |
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270 | glVertex3d(x1, y1, z1); |
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271 | glVertex3d(x1, y1, z0); |
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272 | } |
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273 | glEnd(); |
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274 | } |
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275 | |
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276 | glPopMatrix(); |
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277 | glPopAttrib(); |
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278 | } |
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279 | |
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280 | void |
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281 | NvVectorField::activateDeviceShape(const std::string& name) |
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282 | { |
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283 | std::map<std::string, NvDeviceShape>::iterator iter = _shapeMap.find(name); |
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284 | if (iter != _shapeMap.end()) { |
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285 | (*iter).second.visible = true; |
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286 | } |
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287 | } |
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288 | |
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289 | void |
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290 | NvVectorField::deactivateDeviceShape(const std::string& name) |
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291 | { |
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292 | std::map<std::string, NvDeviceShape>::iterator iter = _shapeMap.find(name); |
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293 | if (iter != _shapeMap.end()) { |
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294 | (*iter).second.visible = false; |
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295 | } |
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296 | } |
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