[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
[226] | 2 | /* |
---|
| 3 | * ---------------------------------------------------------------------- |
---|
| 4 | * nanovis.h: package header |
---|
| 5 | * |
---|
| 6 | * ====================================================================== |
---|
| 7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
---|
| 8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
---|
| 9 | * |
---|
[3502] | 10 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
---|
[226] | 11 | * |
---|
| 12 | * See the file "license.terms" for information on usage and |
---|
| 13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
---|
| 14 | * ====================================================================== |
---|
| 15 | */ |
---|
[4874] | 16 | #ifndef NV_NANOVIS_H |
---|
| 17 | #define NV_NANOVIS_H |
---|
[259] | 18 | |
---|
[4886] | 19 | #include <cstddef> // For size_t |
---|
| 20 | #include <string> |
---|
| 21 | #include <tr1/unordered_map> |
---|
[226] | 22 | |
---|
[4874] | 23 | #include <tcl.h> |
---|
| 24 | |
---|
| 25 | #include <GL/glew.h> |
---|
| 26 | |
---|
[3492] | 27 | #include <vrmath/Vector3f.h> |
---|
[2818] | 28 | |
---|
[251] | 29 | #include "config.h" |
---|
[4904] | 30 | #include "Camera.h" |
---|
[226] | 31 | |
---|
| 32 | //defines for the image based flow visualization |
---|
| 33 | #define NMESH 256 //resolution of flow mesh |
---|
| 34 | #define NPIX 512 //display size |
---|
| 35 | |
---|
[3463] | 36 | namespace nv { |
---|
[2831] | 37 | namespace graphics { |
---|
| 38 | class RenderContext; |
---|
| 39 | } |
---|
[3463] | 40 | namespace util { |
---|
| 41 | class Fonts; |
---|
| 42 | } |
---|
[2831] | 43 | |
---|
[4874] | 44 | class Flow; |
---|
| 45 | class Grid; |
---|
| 46 | class HeightMap; |
---|
[4889] | 47 | class LIC; |
---|
[2831] | 48 | class PlaneRenderer; |
---|
| 49 | class Texture2D; |
---|
| 50 | class TransferFunction; |
---|
[4874] | 51 | class VelocityArrowsSlice; |
---|
[2831] | 52 | class Volume; |
---|
[4874] | 53 | class VolumeRenderer; |
---|
[1370] | 54 | |
---|
[2822] | 55 | class NanoVis |
---|
| 56 | { |
---|
[2831] | 57 | public: |
---|
[3567] | 58 | typedef std::string TransferFunctionId; |
---|
| 59 | typedef std::string VolumeId; |
---|
| 60 | typedef std::string FlowId; |
---|
| 61 | typedef std::string HeightMapId; |
---|
| 62 | typedef std::tr1::unordered_map<TransferFunctionId, TransferFunction *> TransferFunctionHashmap; |
---|
| 63 | typedef std::tr1::unordered_map<VolumeId, Volume *> VolumeHashmap; |
---|
[4612] | 64 | typedef std::tr1::unordered_map<FlowId, Flow *> FlowHashmap; |
---|
[3567] | 65 | typedef std::tr1::unordered_map<HeightMapId, HeightMap *> HeightMapHashmap; |
---|
| 66 | |
---|
[4874] | 67 | static bool init(const char *path); |
---|
| 68 | static bool initGL(); |
---|
| 69 | static bool initOffscreenBuffer(); |
---|
| 70 | static bool resizeOffscreenBuffer(int w, int h); |
---|
[3478] | 71 | static void setBgColor(float color[3]); |
---|
[3497] | 72 | static void render(); |
---|
[2951] | 73 | static void draw3dAxis(); |
---|
[2847] | 74 | static void update(); |
---|
[2951] | 75 | static void removeAllData(); |
---|
[2930] | 76 | |
---|
[4889] | 77 | static const Camera *getCamera() |
---|
[3362] | 78 | { |
---|
[4904] | 79 | return _camera; |
---|
[3362] | 80 | } |
---|
[4904] | 81 | static void panCamera(float dx, float dy); |
---|
| 82 | static void zoomCamera(float z); |
---|
| 83 | static void rotateCamera(float phi, float theta, float psi); |
---|
| 84 | static void orientCamera(double *quat); |
---|
| 85 | static void setCameraPosition(vrmath::Vector3f pos); |
---|
| 86 | static void setCameraUpdir(Camera::AxisDirection dir); |
---|
[3492] | 87 | static void resetCamera(bool resetOrientation = false); |
---|
[1299] | 88 | |
---|
[4904] | 89 | static void eventuallyRedraw(); |
---|
[2847] | 90 | |
---|
[2877] | 91 | static void ppmWrite(const char *prefix); |
---|
| 92 | static void bmpWrite(const char *prefix); |
---|
[4881] | 93 | static void bmpWriteToFile(int frameNum, const char* dirName); |
---|
[2847] | 94 | |
---|
[3567] | 95 | static TransferFunction *getTransferFunction(const TransferFunctionId& id); |
---|
| 96 | static TransferFunction *defineTransferFunction(const TransferFunctionId& id, |
---|
[2847] | 97 | size_t n, float *data); |
---|
| 98 | |
---|
[2877] | 99 | static int renderLegend(TransferFunction *tf, double min, double max, |
---|
| 100 | int width, int height, const char *volArg); |
---|
[2847] | 101 | |
---|
[2877] | 102 | static Volume *loadVolume(const char *tag, int width, int height, int depth, |
---|
[4612] | 103 | int numComponents, float *data, double vmin, double vmax, |
---|
[2877] | 104 | double nonZeroMin); |
---|
[1156] | 105 | |
---|
[4612] | 106 | static void removeVolume(Volume *volume); |
---|
[2877] | 107 | |
---|
| 108 | static void readScreen() |
---|
[2822] | 109 | { |
---|
[4874] | 110 | //glPixelStorei(GL_PACK_ALIGNMENT, 1); |
---|
[2877] | 111 | glReadPixels(0, 0, winWidth, winHeight, GL_RGB, GL_UNSIGNED_BYTE, |
---|
| 112 | screenBuffer); |
---|
[1028] | 113 | } |
---|
[2930] | 114 | static void bindOffscreenBuffer() |
---|
[2822] | 115 | { |
---|
[2877] | 116 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
---|
[1028] | 117 | } |
---|
[1431] | 118 | |
---|
[4874] | 119 | static void setVolumeRanges(); |
---|
| 120 | static void setHeightmapRanges(); |
---|
[4904] | 121 | static bool setFlowRanges(); |
---|
[4874] | 122 | |
---|
[4612] | 123 | static Flow *getFlow(const char *name); |
---|
| 124 | static Flow *createFlow(Tcl_Interp *interp, const char *name); |
---|
[4874] | 125 | static void deleteFlows(Tcl_Interp *interp); |
---|
[3567] | 126 | static void deleteFlow(const char *name); |
---|
[3566] | 127 | static void getFlowBounds(vrmath::Vector3f& min, |
---|
[3492] | 128 | vrmath::Vector3f& max, |
---|
| 129 | bool onlyVisible = false); |
---|
[3566] | 130 | static void renderFlows(); |
---|
| 131 | static void resetFlows(); |
---|
| 132 | static bool updateFlows(); |
---|
| 133 | static void advectFlows(); |
---|
[2831] | 134 | |
---|
[4874] | 135 | static Tcl_Interp *interp; |
---|
| 136 | |
---|
[4904] | 137 | static bool redrawPending; |
---|
[2877] | 138 | static bool debugFlag; |
---|
| 139 | static bool axisOn; |
---|
[3567] | 140 | |
---|
| 141 | static int winWidth; ///< Width of the render window |
---|
| 142 | static int winHeight; ///< Height of the render window |
---|
[4874] | 143 | static int renderWindow; ///< GLUT handle for the render window |
---|
[2877] | 144 | static unsigned char *screenBuffer; |
---|
[2951] | 145 | static Texture2D *legendTexture; |
---|
[4889] | 146 | static util::Fonts *fonts; |
---|
| 147 | static graphics::RenderContext *renderContext; |
---|
[2846] | 148 | |
---|
[3567] | 149 | static TransferFunctionHashmap tfTable; ///< maps transfunc name to TransferFunction object |
---|
| 150 | static VolumeHashmap volumeTable; |
---|
| 151 | static FlowHashmap flowTable; |
---|
| 152 | static HeightMapHashmap heightMapTable; |
---|
[2846] | 153 | |
---|
| 154 | static double magMin, magMax; |
---|
| 155 | static float xMin, xMax, yMin, yMax, zMin, zMax, wMin, wMax; |
---|
[3492] | 156 | static vrmath::Vector3f sceneMin, sceneMax; |
---|
[2846] | 157 | |
---|
[2877] | 158 | static VolumeRenderer *volRenderer; |
---|
[2846] | 159 | static VelocityArrowsSlice *velocityArrowsSlice; |
---|
[4889] | 160 | static LIC *licRenderer; |
---|
[2877] | 161 | static PlaneRenderer *planeRenderer; |
---|
[4874] | 162 | static Grid *grid; |
---|
[3568] | 163 | |
---|
[2831] | 164 | private: |
---|
[3492] | 165 | static void collectBounds(bool onlyVisible = false); |
---|
| 166 | |
---|
[4904] | 167 | static Camera *_camera; |
---|
[2877] | 168 | |
---|
[2831] | 169 | //frame buffer for final rendering |
---|
[2877] | 170 | static GLuint _finalFbo, _finalColorTex, _finalDepthRb; |
---|
[835] | 171 | }; |
---|
[851] | 172 | |
---|
[4889] | 173 | } |
---|
| 174 | |
---|
[2831] | 175 | #endif |
---|