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 | * Authors: |
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6 | * Wei Qiao <qiaow@purdue.edu> |
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7 | * Insoo Woo <iwoo@purdue.edu> |
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8 | * George A. Howlett <gah@purdue.edu> |
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9 | * Leif Delgass <ldelgass@purdue.edu> |
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10 | */ |
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11 | |
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12 | #ifndef FLOW_H |
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13 | #define FLOW_H |
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14 | |
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15 | #include <tr1/unordered_map> |
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16 | #include <vector> |
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17 | #include <string> |
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18 | |
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19 | #include <tcl.h> |
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20 | |
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21 | #include <vrmath/Vector3f.h> |
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22 | |
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23 | #include "Switch.h" |
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24 | #include "FlowTypes.h" |
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25 | #include "FlowParticles.h" |
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26 | #include "FlowBox.h" |
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27 | #include "NvLIC.h" |
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28 | #include "NvParticleRenderer.h" |
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29 | #include "Unirect.h" |
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30 | #include "Volume.h" |
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31 | #include "TransferFunction.h" |
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32 | |
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33 | struct FlowValues { |
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34 | TransferFunction *transferFunction; |
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35 | FlowPosition slicePos; |
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36 | int showArrows; |
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37 | int sliceVisible; |
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38 | int showVolume; |
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39 | int showOutline; |
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40 | int isHidden; |
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41 | int twoSidedLighting; |
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42 | float ambient; ///< Ambient volume shading |
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43 | float diffuse; ///< Diffuse volume shading |
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44 | float specular; ///< Specular level volume shading |
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45 | float specularExp; ///< Specular exponent volume shading |
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46 | float opacity; ///< Volume opacity scaling |
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47 | }; |
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48 | |
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49 | class Flow |
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50 | { |
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51 | public: |
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52 | enum SliceAxis { AXIS_X, AXIS_Y, AXIS_Z }; |
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53 | |
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54 | Flow(Tcl_Interp *interp, const char *name); |
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55 | |
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56 | ~Flow(); |
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57 | |
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58 | void getBounds(vrmath::Vector3f& min, |
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59 | vrmath::Vector3f& max, |
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60 | bool onlyVisible); |
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61 | |
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62 | FlowParticles *createParticles(const char *particlesName); |
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63 | |
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64 | FlowParticles *getParticles(const char *particlesName); |
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65 | |
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66 | void deleteParticles(const char *particlesName); |
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67 | |
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68 | void getParticlesNames(std::vector<std::string>& names); |
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69 | |
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70 | void render(); |
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71 | |
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72 | void advect(); |
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73 | |
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74 | void resetParticles(); |
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75 | |
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76 | void initializeParticles(); |
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77 | |
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78 | FlowBox *createBox(const char *boxName); |
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79 | |
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80 | FlowBox *getBox(const char *boxName); |
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81 | |
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82 | void deleteBox(const char *boxName); |
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83 | |
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84 | void getBoxNames(std::vector<std::string>& names); |
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85 | |
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86 | float *getScaledVector(); |
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87 | |
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88 | Volume *makeVolume(float *data); |
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89 | |
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90 | bool scaleVectorField(); |
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91 | |
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92 | bool visible() |
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93 | { |
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94 | return !_sv.isHidden; |
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95 | } |
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96 | |
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97 | const char *name() const |
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98 | { |
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99 | return _name.c_str(); |
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100 | } |
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101 | |
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102 | bool isDataLoaded() |
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103 | { |
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104 | return (_data != NULL); |
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105 | } |
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106 | |
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107 | Rappture::Unirect3d *data() |
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108 | { |
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109 | return _data; |
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110 | } |
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111 | |
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112 | void data(Rappture::Unirect3d *data) |
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113 | { |
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114 | if (_data != NULL) { |
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115 | delete _data; |
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116 | } |
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117 | _data = data; |
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118 | } |
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119 | #if 0 |
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120 | void activateSlice() |
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121 | { |
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122 | /* Must set axis before offset or position goes to wrong axis. */ |
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123 | NanoVis::licRenderer->setAxis(_sv.slicePos.axis); |
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124 | NanoVis::licRenderer->setOffset(_sv.slicePos.value); |
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125 | NanoVis::licRenderer->active(true); |
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126 | } |
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127 | |
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128 | void deactivateSlice() |
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129 | { |
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130 | NanoVis::licRenderer->active(false); |
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131 | } |
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132 | #endif |
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133 | SliceAxis getAxis() |
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134 | { |
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135 | return (SliceAxis)_sv.slicePos.axis; |
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136 | } |
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137 | |
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138 | TransferFunction *getTransferFunction() |
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139 | { |
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140 | return _sv.transferFunction; |
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141 | } |
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142 | |
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143 | float getRelativePosition(); |
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144 | |
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145 | void setAxis() |
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146 | { |
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147 | NanoVis::licRenderer->setAxis(_sv.slicePos.axis); |
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148 | } |
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149 | |
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150 | void setAxis(Flow::SliceAxis axis) |
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151 | { |
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152 | _sv.slicePos.axis = axis; |
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153 | NanoVis::licRenderer->setAxis(_sv.slicePos.axis); |
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154 | } |
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155 | |
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156 | void setCurrentPosition(float position) |
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157 | { |
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158 | _sv.slicePos.value = position; |
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159 | NanoVis::licRenderer->setOffset(_sv.slicePos.value); |
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160 | } |
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161 | |
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162 | void setCurrentPosition() |
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163 | { |
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164 | NanoVis::licRenderer->setOffset(_sv.slicePos.value); |
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165 | } |
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166 | |
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167 | void setActive(bool state) |
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168 | { |
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169 | _sv.sliceVisible = state; |
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170 | NanoVis::licRenderer->active(state); |
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171 | } |
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172 | |
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173 | void setActive() |
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174 | { |
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175 | NanoVis::licRenderer->active(_sv.sliceVisible); |
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176 | } |
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177 | |
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178 | const Volume *getVolume() const |
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179 | { |
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180 | return _volume; |
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181 | } |
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182 | |
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183 | int parseSwitches(Tcl_Interp *interp, int objc, Tcl_Obj *const *objv) |
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184 | { |
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185 | if (Rappture::ParseSwitches(interp, _switches, objc, objv, &_sv, |
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186 | SWITCH_DEFAULTS) < 0) { |
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187 | return TCL_ERROR; |
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188 | } |
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189 | return TCL_OK; |
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190 | } |
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191 | |
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192 | Tcl_Command getCommandToken() |
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193 | { |
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194 | return _cmdToken; |
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195 | } |
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196 | |
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197 | static float getRelativePosition(FlowPosition *pos); |
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198 | |
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199 | private: |
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200 | typedef std::string ParticlesId; |
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201 | typedef std::string BoxId; |
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202 | typedef std::tr1::unordered_map<ParticlesId, FlowParticles *> ParticlesHashmap; |
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203 | typedef std::tr1::unordered_map<BoxId, FlowBox *> BoxHashmap; |
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204 | |
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205 | void configure(); |
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206 | |
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207 | void renderBoxes(); |
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208 | |
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209 | Tcl_Interp *_interp; |
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210 | /** |
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211 | * Name of the flow. This may differ |
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212 | * from the name of the command |
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213 | * associated with the flow, if the |
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214 | * command was renamed. */ |
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215 | std::string _name; |
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216 | |
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217 | /** |
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218 | * Command associated with the flow. |
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219 | * When the command is deleted, so is |
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220 | * the flow. */ |
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221 | Tcl_Command _cmdToken; |
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222 | |
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223 | /** |
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224 | * Uniform rectangular data |
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225 | * representing the mesh and vector |
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226 | * field values. These values are |
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227 | * kept to regenerate the volume |
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228 | * associated with the flow. */ |
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229 | Rappture::Unirect3d *_data; |
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230 | |
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231 | /** |
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232 | * The volume associated with the |
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233 | * flow. This isn't the same thing as |
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234 | * a normal volume displayed. */ |
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235 | Volume *_volume; |
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236 | |
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237 | /** |
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238 | * For each field there can be one or |
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239 | * more particle injection planes |
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240 | * where the particles are injected |
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241 | * into the flow. */ |
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242 | ParticlesHashmap _particlesTable; |
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243 | |
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244 | /** |
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245 | * A table of boxes. There maybe |
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246 | * zero or more boxes associated |
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247 | * with each field. */ |
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248 | BoxHashmap _boxTable; |
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249 | |
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250 | FlowValues _sv; |
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251 | |
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252 | static Rappture::SwitchSpec _switches[]; |
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253 | }; |
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254 | |
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255 | #endif |
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