[3597] | 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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[4904] | 12 | #include <float.h> |
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| 13 | |
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[3597] | 14 | #include <tcl.h> |
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| 15 | |
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| 16 | #include <vrmath/Vector3f.h> |
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| 17 | |
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| 18 | #include "nanovis.h" |
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| 19 | #include "Flow.h" |
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| 20 | #include "FlowCmd.h" |
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| 21 | #include "FlowTypes.h" |
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| 22 | #include "FlowParticles.h" |
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| 23 | #include "FlowBox.h" |
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[4889] | 24 | #include "LIC.h" |
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[3597] | 25 | #include "VelocityArrowsSlice.h" |
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| 26 | #include "Switch.h" |
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| 27 | #include "Unirect.h" |
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| 28 | #include "Volume.h" |
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| 29 | #include "Trace.h" |
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| 30 | #include "TransferFunction.h" |
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| 31 | |
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[4874] | 32 | using namespace nv; |
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[3597] | 33 | using namespace vrmath; |
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| 34 | |
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[4904] | 35 | bool Flow::updatePending = false; |
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| 36 | |
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[3597] | 37 | Flow::Flow(Tcl_Interp *interp, const char *name) : |
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| 38 | _interp(interp), |
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| 39 | _name(name), |
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| 40 | _data(NULL), |
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| 41 | _volume(NULL) |
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| 42 | { |
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| 43 | memset(&_sv, 0, sizeof(FlowValues)); |
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| 44 | _sv.sliceVisible = 1; |
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| 45 | _sv.transferFunction = NanoVis::getTransferFunction("default"); |
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| 46 | |
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| 47 | _cmdToken = Tcl_CreateObjCommand(_interp, (char *)name, |
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| 48 | (Tcl_ObjCmdProc *)FlowInstObjCmd, |
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| 49 | this, FlowInstDeleteProc); |
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| 50 | } |
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| 51 | |
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| 52 | Flow::~Flow() |
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| 53 | { |
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| 54 | TRACE("Enter"); |
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| 55 | |
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[4893] | 56 | FreeSwitches(_switches, &_sv, 0); |
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[3597] | 57 | |
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| 58 | if (_data != NULL) { |
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| 59 | delete _data; |
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| 60 | } |
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| 61 | if (_volume != NULL) { |
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| 62 | NanoVis::removeVolume(_volume); |
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| 63 | _volume = NULL; |
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| 64 | } |
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| 65 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
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| 66 | itr != _boxTable.end(); ++itr) { |
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| 67 | delete itr->second; |
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| 68 | } |
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| 69 | _boxTable.clear(); |
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| 70 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 71 | itr != _particlesTable.end(); ++itr) { |
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| 72 | delete itr->second; |
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| 73 | } |
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| 74 | _particlesTable.clear(); |
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| 75 | } |
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| 76 | |
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| 77 | void |
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| 78 | Flow::getBounds(Vector3f& min, |
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| 79 | Vector3f& max, |
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| 80 | bool onlyVisible) |
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| 81 | { |
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| 82 | TRACE("Enter"); |
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| 83 | |
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| 84 | if (onlyVisible && !visible()) |
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| 85 | return; |
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| 86 | |
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| 87 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
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| 88 | itr != _boxTable.end(); ++itr) { |
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| 89 | FlowBox *box = itr->second; |
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| 90 | if (!onlyVisible || box->visible()) { |
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| 91 | Vector3f fbmin, fbmax; |
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| 92 | box->getWorldSpaceBounds(fbmin, fbmax, |
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| 93 | getVolume()); |
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| 94 | if (min.x > fbmin.x) { |
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| 95 | min.x = fbmin.x; |
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| 96 | } |
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| 97 | if (max.x < fbmax.x) { |
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| 98 | max.x = fbmax.x; |
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| 99 | } |
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| 100 | if (min.y > fbmin.y) { |
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| 101 | min.y = fbmin.y; |
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| 102 | } |
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| 103 | if (max.y < fbmax.y) { |
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| 104 | max.y = fbmax.y; |
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| 105 | } |
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| 106 | if (min.z > fbmin.z) { |
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| 107 | min.z = fbmin.z; |
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| 108 | } |
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| 109 | if (max.z < fbmax.z) { |
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| 110 | max.z = fbmax.z; |
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| 111 | } |
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| 112 | } |
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| 113 | } |
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| 114 | } |
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| 115 | |
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| 116 | float |
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| 117 | Flow::getRelativePosition(FlowPosition *position) |
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| 118 | { |
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| 119 | if (position->flags == RELPOS) { |
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| 120 | return position->value; |
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| 121 | } |
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| 122 | switch (position->axis) { |
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| 123 | case AXIS_X: |
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| 124 | return (position->value - NanoVis::xMin) / |
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| 125 | (NanoVis::xMax - NanoVis::xMin); |
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| 126 | case AXIS_Y: |
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| 127 | return (position->value - NanoVis::yMin) / |
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| 128 | (NanoVis::yMax - NanoVis::yMin); |
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| 129 | case AXIS_Z: |
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| 130 | return (position->value - NanoVis::zMin) / |
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| 131 | (NanoVis::zMax - NanoVis::zMin); |
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| 132 | } |
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| 133 | return 0.0; |
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| 134 | } |
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| 135 | |
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| 136 | void |
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| 137 | Flow::resetParticles() |
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| 138 | { |
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| 139 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 140 | itr != _particlesTable.end(); ++itr) { |
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| 141 | itr->second->reset(); |
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| 142 | } |
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| 143 | } |
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| 144 | |
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| 145 | void |
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| 146 | Flow::advect() |
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| 147 | { |
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| 148 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 149 | itr != _particlesTable.end(); ++itr) { |
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| 150 | if (itr->second->visible()) { |
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| 151 | itr->second->advect(); |
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| 152 | } |
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| 153 | } |
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| 154 | } |
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| 155 | |
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| 156 | void |
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| 157 | Flow::render() |
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| 158 | { |
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| 159 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 160 | itr != _particlesTable.end(); ++itr) { |
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| 161 | if (itr->second->visible()) { |
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| 162 | itr->second->render(); |
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| 163 | } |
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| 164 | } |
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| 165 | renderBoxes(); |
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| 166 | } |
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| 167 | |
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| 168 | FlowParticles * |
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| 169 | Flow::createParticles(const char *particlesName) |
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| 170 | { |
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| 171 | ParticlesHashmap::iterator itr = _particlesTable.find(particlesName); |
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| 172 | if (itr != _particlesTable.end()) { |
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| 173 | TRACE("Deleting existing particle injection plane '%s'", particlesName); |
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| 174 | delete itr->second; |
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| 175 | _particlesTable.erase(itr); |
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| 176 | } |
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| 177 | FlowParticles *particles = new FlowParticles(particlesName); |
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| 178 | _particlesTable[particlesName] = particles; |
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| 179 | return particles; |
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| 180 | } |
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| 181 | |
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| 182 | FlowParticles * |
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| 183 | Flow::getParticles(const char *particlesName) |
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| 184 | { |
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| 185 | ParticlesHashmap::iterator itr; |
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| 186 | itr = _particlesTable.find(particlesName); |
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| 187 | if (itr == _particlesTable.end()) { |
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| 188 | TRACE("Can't find particle injection plane '%s' in '%s'", particlesName, name()); |
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| 189 | return NULL; |
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| 190 | } |
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| 191 | return itr->second; |
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| 192 | } |
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| 193 | |
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| 194 | void |
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| 195 | Flow::deleteParticles(const char *particlesName) |
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| 196 | { |
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| 197 | ParticlesHashmap::iterator itr = _particlesTable.find(particlesName); |
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| 198 | if (itr == _particlesTable.end()) { |
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| 199 | TRACE("Can't find particle injection plane '%s' in '%s'", particlesName, name()); |
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| 200 | return; |
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| 201 | } |
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| 202 | delete itr->second; |
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| 203 | _particlesTable.erase(itr); |
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| 204 | } |
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| 205 | |
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| 206 | void |
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| 207 | Flow::getParticlesNames(std::vector<std::string>& names) |
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| 208 | { |
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| 209 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 210 | itr != _particlesTable.end(); ++itr) { |
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| 211 | names.push_back(std::string(itr->second->name())); |
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| 212 | } |
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| 213 | } |
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| 214 | |
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| 215 | FlowBox * |
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| 216 | Flow::createBox(const char *boxName) |
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| 217 | { |
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| 218 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
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| 219 | if (itr != _boxTable.end()) { |
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| 220 | TRACE("Deleting existing box '%s'", boxName); |
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| 221 | delete itr->second; |
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| 222 | _boxTable.erase(itr); |
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| 223 | } |
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| 224 | FlowBox *box = new FlowBox(boxName); |
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| 225 | _boxTable[boxName] = box; |
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| 226 | return box; |
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| 227 | } |
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| 228 | |
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| 229 | FlowBox * |
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| 230 | Flow::getBox(const char *boxName) |
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| 231 | { |
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| 232 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
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| 233 | if (itr == _boxTable.end()) { |
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| 234 | TRACE("Can't find box '%s' in '%s'", boxName, name()); |
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| 235 | return NULL; |
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| 236 | } |
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| 237 | return itr->second; |
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| 238 | } |
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| 239 | |
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| 240 | void |
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| 241 | Flow::deleteBox(const char *boxName) |
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| 242 | { |
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| 243 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
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| 244 | if (itr == _boxTable.end()) { |
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| 245 | TRACE("Can't find box '%s' in '%s'", boxName, name()); |
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| 246 | return; |
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| 247 | } |
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| 248 | delete itr->second; |
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| 249 | _boxTable.erase(itr); |
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| 250 | } |
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| 251 | |
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| 252 | void Flow::getBoxNames(std::vector<std::string>& names) |
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| 253 | { |
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| 254 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
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| 255 | itr != _boxTable.end(); ++itr) { |
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| 256 | names.push_back(std::string(itr->second->name())); |
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| 257 | } |
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| 258 | } |
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| 259 | |
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| 260 | void |
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| 261 | Flow::initializeParticles() |
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| 262 | { |
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| 263 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 264 | itr != _particlesTable.end(); ++itr) { |
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| 265 | itr->second->initialize(); |
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| 266 | } |
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| 267 | } |
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| 268 | |
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| 269 | bool |
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| 270 | Flow::scaleVectorField() |
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| 271 | { |
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| 272 | if (_volume != NULL) { |
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| 273 | TRACE("Removing existing volume: %s", _volume->name()); |
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| 274 | NanoVis::removeVolume(_volume); |
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| 275 | _volume = NULL; |
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| 276 | } |
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| 277 | float *vdata = getScaledVector(); |
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| 278 | if (vdata == NULL) { |
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| 279 | return false; |
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| 280 | } |
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| 281 | Volume *volume = makeVolume(vdata); |
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| 282 | delete [] vdata; |
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| 283 | if (volume == NULL) { |
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| 284 | return false; |
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| 285 | } |
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| 286 | _volume = volume; |
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| 287 | |
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| 288 | Vector3f scale = volume->getPhysicalScaling(); |
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[4904] | 289 | Vector3f pos = _volume->getPosition(); |
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[3597] | 290 | |
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| 291 | if (NanoVis::licRenderer != NULL) { |
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| 292 | NanoVis::licRenderer-> |
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| 293 | setVectorField(_volume->textureID(), |
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[4904] | 294 | pos, |
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[3597] | 295 | scale.x, |
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| 296 | scale.y, |
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| 297 | scale.z, |
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| 298 | _volume->wAxis.max()); |
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[4904] | 299 | NanoVis::licRenderer->setSliceAxis(_sv.slicePos.axis); |
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| 300 | NanoVis::licRenderer->setSlicePosition(_sv.slicePos.value); |
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| 301 | NanoVis::licRenderer->visible(_sv.sliceVisible); |
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[3597] | 302 | } |
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| 303 | |
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| 304 | if (NanoVis::velocityArrowsSlice != NULL) { |
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| 305 | NanoVis::velocityArrowsSlice-> |
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| 306 | setVectorField(_volume->textureID(), |
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[4904] | 307 | pos, |
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[3597] | 308 | scale.x, |
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| 309 | scale.y, |
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| 310 | scale.z, |
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| 311 | _volume->wAxis.max()); |
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[4904] | 312 | NanoVis::velocityArrowsSlice->setSliceAxis(_sv.slicePos.axis); |
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| 313 | NanoVis::velocityArrowsSlice->setSlicePosition(_sv.slicePos.value); |
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| 314 | NanoVis::velocityArrowsSlice->visible(_sv.showArrows); |
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[3597] | 315 | } |
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| 316 | |
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| 317 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
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| 318 | itr != _particlesTable.end(); ++itr) { |
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| 319 | itr->second->setVectorField(_volume, |
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[4904] | 320 | pos, |
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[3597] | 321 | scale.x, |
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| 322 | scale.y, |
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| 323 | scale.z, |
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| 324 | _volume->wAxis.max()); |
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| 325 | } |
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| 326 | return true; |
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| 327 | } |
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| 328 | |
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| 329 | void |
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| 330 | Flow::renderBoxes() |
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| 331 | { |
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| 332 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
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| 333 | itr != _boxTable.end(); ++itr) { |
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| 334 | if (itr->second->visible()) { |
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| 335 | itr->second->render(_volume); |
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| 336 | } |
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| 337 | } |
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| 338 | } |
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| 339 | |
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| 340 | float * |
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| 341 | Flow::getScaledVector() |
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| 342 | { |
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| 343 | assert(_data->nComponents() == 3); |
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| 344 | size_t n = _data->nValues() / _data->nComponents() * 4; |
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| 345 | float *data = new float[n]; |
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| 346 | if (data == NULL) { |
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| 347 | return NULL; |
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| 348 | } |
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| 349 | memset(data, 0, sizeof(float) * n); |
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| 350 | float *dest = data; |
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| 351 | const float *values = _data->values(); |
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| 352 | for (size_t iz = 0; iz < _data->zNum(); iz++) { |
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| 353 | for (size_t iy = 0; iy < _data->yNum(); iy++) { |
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| 354 | for (size_t ix = 0; ix < _data->xNum(); ix++) { |
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| 355 | double vx, vy, vz, vm; |
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| 356 | vx = values[0]; |
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| 357 | vy = values[1]; |
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| 358 | vz = values[2]; |
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| 359 | vm = sqrt(vx*vx + vy*vy + vz*vz); |
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| 360 | dest[0] = vm / NanoVis::magMax; |
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| 361 | dest[1] = vx /(2.0*NanoVis::magMax) + 0.5; |
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| 362 | dest[2] = vy /(2.0*NanoVis::magMax) + 0.5; |
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| 363 | dest[3] = vz /(2.0*NanoVis::magMax) + 0.5; |
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| 364 | values += 3; |
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| 365 | dest += 4; |
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| 366 | } |
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| 367 | } |
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| 368 | } |
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| 369 | return data; |
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| 370 | } |
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| 371 | |
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| 372 | Volume * |
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| 373 | Flow::makeVolume(float *data) |
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| 374 | { |
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| 375 | Volume *volume = |
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| 376 | NanoVis::loadVolume(_name.c_str(), |
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| 377 | _data->xNum(), |
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| 378 | _data->yNum(), |
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| 379 | _data->zNum(), |
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| 380 | 4, data, |
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| 381 | NanoVis::magMin, NanoVis::magMax, 0); |
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| 382 | volume->xAxis.setRange(_data->xMin(), _data->xMax()); |
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| 383 | volume->yAxis.setRange(_data->yMin(), _data->yMax()); |
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| 384 | volume->zAxis.setRange(_data->zMin(), _data->zMax()); |
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| 385 | |
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| 386 | TRACE("min=%g %g %g max=%g %g %g mag=%g %g", |
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| 387 | NanoVis::xMin, NanoVis::yMin, NanoVis::zMin, |
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| 388 | NanoVis::xMax, NanoVis::yMax, NanoVis::zMax, |
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| 389 | NanoVis::magMin, NanoVis::magMax); |
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| 390 | |
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| 391 | volume->disableCutplane(0); |
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| 392 | volume->disableCutplane(1); |
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| 393 | volume->disableCutplane(2); |
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| 394 | |
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| 395 | /* Initialize the volume with the previously configured values. */ |
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| 396 | volume->transferFunction(_sv.transferFunction); |
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| 397 | volume->dataEnabled(_sv.showVolume); |
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| 398 | volume->twoSidedLighting(_sv.twoSidedLighting); |
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| 399 | volume->outline(_sv.showOutline); |
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| 400 | volume->opacityScale(_sv.opacity); |
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| 401 | volume->ambient(_sv.ambient); |
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| 402 | volume->diffuse(_sv.diffuse); |
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| 403 | volume->specularLevel(_sv.specular); |
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| 404 | volume->specularExponent(_sv.specularExp); |
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| 405 | volume->visible(_sv.showVolume); |
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| 406 | |
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| 407 | Vector3f volScaling = volume->getPhysicalScaling(); |
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[4904] | 408 | Vector3f pos(volScaling); |
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| 409 | pos *= -0.5; |
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| 410 | volume->setPosition(pos); |
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[3597] | 411 | |
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| 412 | Volume::updatePending = true; |
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| 413 | return volume; |
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| 414 | } |
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