1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * Volume.cpp: 3d volume class |
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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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10 | * Copyright (c) 2004-2006 Purdue Research Foundation |
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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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16 | |
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17 | #include <memory.h> |
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18 | #include <assert.h> |
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19 | #include "Volume.h" |
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20 | #include "Trace.h" |
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21 | |
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22 | bool Volume::update_pending = false; |
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23 | double Volume::valueMin = 0.0; |
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24 | double Volume::valueMax = 1.0; |
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25 | |
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26 | Volume::Volume(float x, float y, float z, |
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27 | int w, int h, int d, float s, |
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28 | int n, float* data, double v0, double v1, double nz_min) : |
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29 | _tfPtr(NULL), |
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30 | _specular(6.), // default value |
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31 | _diffuse(3.), // default value |
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32 | _opacity_scale(10.), // default value |
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33 | _name(NULL), |
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34 | _n_components(n), |
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35 | _nonzero_min(nz_min), |
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36 | _pointsetIndex(-1), |
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37 | _n_slices(512), // default value |
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38 | _enabled(true), |
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39 | //n_slice(256), // default value |
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40 | _data_enabled(true), // default value |
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41 | _outline_enabled(true), // default value |
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42 | _outline_color(1.,1.,1.), // default value |
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43 | _volume_type(CUBIC), // default is a cubic volume |
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44 | _iso_surface(0), |
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45 | width(w), |
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46 | height(h), |
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47 | depth(d), |
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48 | size(s) |
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49 | { |
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50 | _tex = new Texture3D(w, h, d, GL_FLOAT, GL_LINEAR, n); |
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51 | int fcount = width * height * depth * _n_components; |
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52 | _data = new float[fcount]; |
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53 | if (data != NULL) { |
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54 | TRACE("data is copied\n"); |
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55 | memcpy(_data, data, fcount * sizeof(float)); |
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56 | _tex->initialize(_data); |
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57 | } else { |
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58 | TRACE("data is null\n"); |
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59 | memset(_data, 0, sizeof(width * height * depth * _n_components * |
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60 | sizeof(float))); |
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61 | _tex->initialize(_data); |
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62 | } |
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63 | |
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64 | id = _tex->id; |
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65 | |
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66 | wAxis.SetRange(v0, v1); |
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67 | |
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68 | // VOLUME |
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69 | aspect_ratio_width = s * _tex->aspect_ratio_width; |
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70 | aspect_ratio_height = s * _tex->aspect_ratio_height; |
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71 | aspect_ratio_depth = s * _tex->aspect_ratio_depth; |
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72 | |
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73 | _location = Vector3(x, y, z); |
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74 | |
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75 | //Add cut planes. We create 3 default cut planes facing x, y, z directions. |
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76 | //The default location of cut plane is in the middle of the data. |
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77 | _plane.clear(); |
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78 | add_cutplane(1, 0.5f); |
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79 | add_cutplane(2, 0.5f); |
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80 | add_cutplane(3, 0.5f); |
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81 | |
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82 | //initialize the labels |
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83 | label[0] = "X Label"; |
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84 | label[1] = "Y Label"; |
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85 | label[2] = "Z Label"; |
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86 | |
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87 | TRACE("End -- Volume constructor\n"); |
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88 | } |
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89 | |
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90 | Volume::~Volume() |
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91 | { |
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92 | if (_pointsetIndex != -1) { |
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93 | // TBD... |
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94 | } |
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95 | |
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96 | delete [] _data; |
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97 | |
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98 | delete _tex; |
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99 | } |
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