[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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[226] | 2 | /* |
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| 3 | * ---------------------------------------------------------------------- |
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| 4 | * nanovis.h: package header |
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| 5 | * |
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| 6 | * ====================================================================== |
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| 7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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| 8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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| 9 | * |
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[3502] | 10 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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[226] | 11 | * |
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| 12 | * See the file "license.terms" for information on usage and |
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| 13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 14 | * ====================================================================== |
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| 15 | */ |
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[3614] | 16 | #ifndef NV_NANOVIS_H |
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| 17 | #define NV_NANOVIS_H |
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[259] | 18 | |
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[226] | 19 | #include <math.h> |
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[2831] | 20 | #include <stddef.h> // For size_t |
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[226] | 21 | #include <stdio.h> |
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[3605] | 22 | #include <sys/time.h> |
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| 23 | #include <sys/types.h> // For pid_t |
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[226] | 24 | |
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[3605] | 25 | #include <tcl.h> |
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| 26 | |
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| 27 | #include <GL/glew.h> |
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| 28 | |
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[2831] | 29 | #include <vector> |
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| 30 | #include <iostream> |
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[3567] | 31 | #include <tr1/unordered_map> |
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[2831] | 32 | |
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[3630] | 33 | #include <vrmath/BBox.h> |
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[3492] | 34 | #include <vrmath/Vector3f.h> |
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[2818] | 35 | |
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[251] | 36 | #include "config.h" |
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[3630] | 37 | #include "Camera.h" |
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| 38 | #include "FlowTypes.h" |
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[3605] | 39 | #include "md5.h" |
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[226] | 40 | |
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| 41 | //defines for the image based flow visualization |
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| 42 | #define NMESH 256 //resolution of flow mesh |
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| 43 | #define NPIX 512 //display size |
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| 44 | |
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[3463] | 45 | namespace nv { |
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[2831] | 46 | namespace graphics { |
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| 47 | class RenderContext; |
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| 48 | } |
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[3463] | 49 | namespace util { |
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| 50 | class Fonts; |
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| 51 | } |
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[3611] | 52 | |
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| 53 | class Flow; |
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| 54 | class Grid; |
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| 55 | class HeightMap; |
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| 56 | class LIC; |
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[3605] | 57 | class OrientationIndicator; |
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| 58 | class PlaneRenderer; |
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[2831] | 59 | class Texture2D; |
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| 60 | class TransferFunction; |
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[3611] | 61 | class VelocityArrowsSlice; |
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[2831] | 62 | class Volume; |
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[3611] | 63 | class VolumeRenderer; |
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[1370] | 64 | |
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[2822] | 65 | class NanoVis |
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| 66 | { |
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[2831] | 67 | public: |
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[3567] | 68 | typedef std::string TransferFunctionId; |
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| 69 | typedef std::string VolumeId; |
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| 70 | typedef std::string FlowId; |
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| 71 | typedef std::string HeightMapId; |
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| 72 | typedef std::tr1::unordered_map<TransferFunctionId, TransferFunction *> TransferFunctionHashmap; |
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| 73 | typedef std::tr1::unordered_map<VolumeId, Volume *> VolumeHashmap; |
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[3597] | 74 | typedef std::tr1::unordered_map<FlowId, Flow *> FlowHashmap; |
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[3567] | 75 | typedef std::tr1::unordered_map<HeightMapId, HeightMap *> HeightMapHashmap; |
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| 76 | |
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[3605] | 77 | static bool init(const char *path); |
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| 78 | static bool initGL(); |
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| 79 | static bool initOffscreenBuffer(); |
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| 80 | static bool resizeOffscreenBuffer(int w, int h); |
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[3478] | 81 | static void setBgColor(float color[3]); |
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[3497] | 82 | static void render(); |
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[2847] | 83 | static void update(); |
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[2951] | 84 | static void removeAllData(); |
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[2930] | 85 | |
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[3611] | 86 | static const Camera *getCamera() |
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[3362] | 87 | { |
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[3630] | 88 | return _camera; |
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[3362] | 89 | } |
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[3630] | 90 | static void panCamera(float dx, float dy); |
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| 91 | static void zoomCamera(float z); |
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| 92 | static void orientCamera(double *quat); |
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| 93 | static void setCameraPosition(vrmath::Vector3f pos); |
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| 94 | static void setCameraUpdir(Camera::AxisDirection dir); |
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[3492] | 95 | static void resetCamera(bool resetOrientation = false); |
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[1299] | 96 | |
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[3630] | 97 | static void eventuallyRedraw(); |
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[2847] | 98 | |
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[3567] | 99 | static TransferFunction *getTransferFunction(const TransferFunctionId& id); |
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| 100 | static TransferFunction *defineTransferFunction(const TransferFunctionId& id, |
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[2847] | 101 | size_t n, float *data); |
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| 102 | |
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[2877] | 103 | static int renderLegend(TransferFunction *tf, double min, double max, |
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| 104 | int width, int height, const char *volArg); |
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[2847] | 105 | |
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[2877] | 106 | static Volume *loadVolume(const char *tag, int width, int height, int depth, |
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[3597] | 107 | int numComponents, float *data, double vmin, double vmax, |
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[2877] | 108 | double nonZeroMin); |
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[1156] | 109 | |
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[3597] | 110 | static void removeVolume(Volume *volume); |
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[2877] | 111 | |
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| 112 | static void readScreen() |
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[2822] | 113 | { |
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[3605] | 114 | glPixelStorei(GL_PACK_ALIGNMENT, 1); |
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[2877] | 115 | glReadPixels(0, 0, winWidth, winHeight, GL_RGB, GL_UNSIGNED_BYTE, |
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| 116 | screenBuffer); |
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[1028] | 117 | } |
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[2930] | 118 | static void bindOffscreenBuffer() |
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[2822] | 119 | { |
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[2877] | 120 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
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[1028] | 121 | } |
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[1431] | 122 | |
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[3630] | 123 | static void setVolumeRanges(); |
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| 124 | static void setHeightmapRanges(); |
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| 125 | static bool mapFlows(); |
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| 126 | |
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[3597] | 127 | static Flow *getFlow(const char *name); |
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| 128 | static Flow *createFlow(Tcl_Interp *interp, const char *name); |
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[3605] | 129 | static void deleteFlows(Tcl_Interp *interp); |
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[3567] | 130 | static void deleteFlow(const char *name); |
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[3566] | 131 | static void getFlowBounds(vrmath::Vector3f& min, |
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[3492] | 132 | vrmath::Vector3f& max, |
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| 133 | bool onlyVisible = false); |
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[3566] | 134 | static void renderFlows(); |
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| 135 | static void resetFlows(); |
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| 136 | static bool updateFlows(); |
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| 137 | static void advectFlows(); |
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[2831] | 138 | |
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[3605] | 139 | static Tcl_Interp *interp; |
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| 140 | |
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[3630] | 141 | static bool redrawPending; |
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[2877] | 142 | static bool debugFlag; |
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[3567] | 143 | |
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| 144 | static int winWidth; ///< Width of the render window |
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| 145 | static int winHeight; ///< Height of the render window |
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[3630] | 146 | static int renderWindow; ///< GLUT handle for the render window |
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[2877] | 147 | static unsigned char *screenBuffer; |
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[2951] | 148 | static Texture2D *legendTexture; |
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[3611] | 149 | static util::Fonts *fonts; |
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| 150 | static graphics::RenderContext *renderContext; |
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[2846] | 151 | |
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[3567] | 152 | static TransferFunctionHashmap tfTable; ///< maps transfunc name to TransferFunction object |
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| 153 | static VolumeHashmap volumeTable; |
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| 154 | static FlowHashmap flowTable; |
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| 155 | static HeightMapHashmap heightMapTable; |
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[2846] | 156 | |
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[3630] | 157 | static vrmath::BBox sceneBounds; |
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[2846] | 158 | |
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[2877] | 159 | static VolumeRenderer *volRenderer; |
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[2846] | 160 | static VelocityArrowsSlice *velocityArrowsSlice; |
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[3611] | 161 | static LIC *licRenderer; |
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[2877] | 162 | static PlaneRenderer *planeRenderer; |
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[3611] | 163 | static OrientationIndicator *orientationIndicator; |
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[3605] | 164 | static Grid *grid; |
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[3568] | 165 | |
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[2831] | 166 | private: |
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[3492] | 167 | static void collectBounds(bool onlyVisible = false); |
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| 168 | |
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[3630] | 169 | static Camera *_camera; |
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[2877] | 170 | |
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[2831] | 171 | //frame buffer for final rendering |
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[2877] | 172 | static GLuint _finalFbo, _finalColorTex, _finalDepthRb; |
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[835] | 173 | }; |
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[851] | 174 | |
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[3611] | 175 | } |
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| 176 | |
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[2831] | 177 | #endif |
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