glviewvol

annotate src/renderer.cc @ 12:773f89037a35

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added copyright headers
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 31 Dec 2014 07:57:04 +0200
parents 89efc666105c
children
rev   line source
nuclear@12 1 /*
nuclear@12 2 glviewvol is an OpenGL 3D volume data viewer
nuclear@12 3 Copyright (C) 2014 John Tsiombikas <nuclear@member.fsf.org>
nuclear@12 4
nuclear@12 5 This program is free software: you can redistribute it and/or modify
nuclear@12 6 it under the terms of the GNU General Public License as published by
nuclear@12 7 the Free Software Foundation, either version 3 of the License, or
nuclear@12 8 (at your option) any later version.
nuclear@12 9
nuclear@12 10 This program is distributed in the hope that it will be useful,
nuclear@12 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@12 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@12 13 GNU General Public License for more details.
nuclear@12 14
nuclear@12 15 You should have received a copy of the GNU General Public License
nuclear@12 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@12 17 */
nuclear@4 18 #include <math.h>
nuclear@0 19 #include "renderer.h"
nuclear@0 20
nuclear@0 21 Renderer::Renderer()
nuclear@0 22 {
nuclear@0 23 vol = 0;
nuclear@0 24 view_width = 512;
nuclear@0 25 view_height = 512;
nuclear@4 26
nuclear@4 27 for(int i=0; i<MAX_CLIP_PLANES; i++) {
nuclear@4 28 disable_clipping_plane(i);
nuclear@4 29 }
nuclear@10 30
nuclear@10 31 zscale = 1.0;
nuclear@0 32 }
nuclear@0 33
nuclear@0 34 Renderer::~Renderer()
nuclear@0 35 {
nuclear@0 36 destroy();
nuclear@0 37 }
nuclear@0 38
nuclear@0 39 bool Renderer::init()
nuclear@0 40 {
nuclear@0 41 return true;
nuclear@0 42 }
nuclear@0 43
nuclear@0 44 void Renderer::destroy()
nuclear@0 45 {
nuclear@0 46 }
nuclear@0 47
nuclear@0 48 void Renderer::set_volume(Volume *vol)
nuclear@0 49 {
nuclear@0 50 this->vol = vol;
nuclear@0 51 }
nuclear@0 52
nuclear@0 53 Volume *Renderer::get_volume() const
nuclear@0 54 {
nuclear@0 55 return vol;
nuclear@0 56 }
nuclear@0 57
nuclear@10 58 void Renderer::set_zscale(float zs)
nuclear@10 59 {
nuclear@10 60 zscale = zs;
nuclear@10 61 }
nuclear@10 62
nuclear@10 63 float Renderer::get_zscale() const
nuclear@10 64 {
nuclear@10 65 return zscale;
nuclear@10 66 }
nuclear@10 67
nuclear@6 68 void Renderer::set_transfer_function(TransferFunc *xfer)
nuclear@4 69 {
nuclear@6 70 this->xfer = xfer;
nuclear@4 71 }
nuclear@4 72
nuclear@6 73 TransferFunc *Renderer::get_transfer_function() const
nuclear@4 74 {
nuclear@6 75 return xfer;
nuclear@5 76 }
nuclear@5 77
nuclear@4 78 void Renderer::set_clipping_plane(int idx, float nx, float ny, float nz, float dist)
nuclear@4 79 {
nuclear@4 80 float len = sqrt(nx * nx + ny * ny + nz * nz);
nuclear@4 81 if(len != 0.0) {
nuclear@4 82 nx /= len;
nuclear@4 83 ny /= len;
nuclear@4 84 nz /= len;
nuclear@4 85 }
nuclear@4 86 clip_plane[idx][0] = nx;
nuclear@4 87 clip_plane[idx][1] = ny;
nuclear@4 88 clip_plane[idx][2] = nz;
nuclear@4 89 clip_plane[idx][3] = dist;
nuclear@4 90 }
nuclear@4 91
nuclear@4 92 void Renderer::disable_clipping_plane(int idx)
nuclear@4 93 {
nuclear@4 94 clip_plane[idx][0] = clip_plane[idx][2] = 0;
nuclear@4 95 clip_plane[idx][1] = 1;
nuclear@4 96 clip_plane[idx][3] = -1;
nuclear@4 97 }
nuclear@4 98
nuclear@0 99 void Renderer::reshape(int x, int y)
nuclear@0 100 {
nuclear@0 101 view_width = x;
nuclear@0 102 view_height = y;
nuclear@0 103 }
nuclear@0 104
nuclear@0 105 void Renderer::update(unsigned int msec)
nuclear@0 106 {
nuclear@0 107 }