glviewvol

view src/volume.h @ 14:0d2447b9c512

did the histogram... doesn't seem to work right
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 01 Jan 2015 06:36:45 +0200
parents 773f89037a35
children
line source
1 /*
2 glviewvol is an OpenGL 3D volume data viewer
3 Copyright (C) 2014 John Tsiombikas <nuclear@member.fsf.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #ifndef VOLUME_H_
19 #define VOLUME_H_
21 #include <vector>
22 #include "image.h"
24 class Volume {
25 public:
26 virtual ~Volume();
28 // returns 0 if the volume is continuously defined
29 virtual int num_samples(int dim) const;
31 // central differences offset will be delta / num_samples for discrete volumes
32 // and delta for continuous volumes
33 virtual void normalf(float *norm, float x, float y, float z, float delta = 1.0);
34 virtual void normali(float *norm, int x, int y, int z);
36 virtual float valuef(float x, float y, float z) const = 0;
37 virtual float valuei(int x, int y, int z) const = 0;
38 };
40 class VoxelVolume : public Volume {
41 protected:
42 int size[3];
43 std::vector<Image> slices;
45 float *hist;
46 int num_hist_samples;
47 bool hist_valid;
49 public:
50 VoxelVolume();
51 ~VoxelVolume();
53 bool load(const char *fname);
55 int num_samples(int dim) const;
57 float valuef(float x, float y, float z) const;
58 float valuei(int x, int y, int z) const;
60 float *calc_histogram(int hist_samples);
61 };
63 #endif // VOLUME_H_