| 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) 2004-2012 HUBzero Foundation, LLC |
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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 | #include <memory.h> |
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| 17 | #include <assert.h> |
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| 18 | |
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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::updatePending = 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, |
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| 28 | int n, float *data, |
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| 29 | double v0, double v1, double nonZeroMin) : |
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| 30 | _id(0), |
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| 31 | _width(w), |
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| 32 | _height(h), |
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| 33 | _depth(d), |
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| 34 | _tfPtr(NULL), |
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| 35 | _ambient(0.6f), |
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| 36 | _diffuse(0.4f), |
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| 37 | _specular(0.3f), |
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| 38 | _specularExp(90.0f), |
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| 39 | _lightTwoSide(false), |
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| 40 | _opacityScale(0.5f), |
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| 41 | _name(NULL), |
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| 42 | _data(NULL), |
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| 43 | _numComponents(n), |
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| 44 | _nonZeroMin(nonZeroMin), |
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| 45 | _tex(NULL), |
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| 46 | _location(x, y, z), |
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| 47 | _numSlices(512), |
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| 48 | _enabled(true), |
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| 49 | _dataEnabled(true), |
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| 50 | _outlineEnabled(true), |
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| 51 | _outlineColor(1., 1., 1.), |
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| 52 | _volumeType(CUBIC), |
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| 53 | _isosurface(0) |
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| 54 | { |
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| 55 | TRACE("Enter: %dx%dx%d", _width, _height, _depth); |
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| 56 | |
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| 57 | _tex = new Texture3D(_width, _height, _depth, GL_FLOAT, GL_LINEAR, n); |
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| 58 | int fcount = _width * _height * _depth * _numComponents; |
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| 59 | _data = new float[fcount]; |
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| 60 | if (data != NULL) { |
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| 61 | TRACE("data is copied"); |
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| 62 | memcpy(_data, data, fcount * sizeof(float)); |
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| 63 | _tex->initialize(_data); |
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| 64 | } else { |
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| 65 | TRACE("data is null"); |
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| 66 | memset(_data, 0, sizeof(_width * _height * _depth * _numComponents * |
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| 67 | sizeof(float))); |
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| 68 | _tex->initialize(_data); |
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| 69 | } |
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| 70 | |
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| 71 | _id = _tex->id(); |
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| 72 | |
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| 73 | wAxis.setRange(v0, v1); |
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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 | addCutplane(1, 0.5f); |
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| 79 | addCutplane(2, 0.5f); |
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| 80 | addCutplane(3, 0.5f); |
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| 81 | |
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| 82 | TRACE("Leave"); |
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| 83 | } |
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| 84 | |
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| 85 | Volume::~Volume() |
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| 86 | { |
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| 87 | TRACE("Enter"); |
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| 88 | |
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| 89 | delete [] _data; |
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| 90 | delete _tex; |
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| 91 | } |
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