1 #ifndef VOLUME_H_

2 #define VOLUME_H_

3

4 #include <vector>

5 #include "image.h"

6

7 class Mesh;

8

9 class Volume {

10 private:

11 std::vector<Image> slices;

12

13 int width;

14 int height;

15 float zaspect;

16

17 unsigned int vol_tex;

18 mutable bool vol_tex_valid;

19

20 void create_vol_tex() const;

21

22 public:

23 Volume();

24 ~Volume();

25

26 bool load(const char *fname);

27

28 bool push_slice(Image &&slice);

29 const Image *get_slice(int num_slice) const;

30

31 // z must be in [0, 1]

32 const Image *get_slice_by_z(float z) const;

33

34 int get_slice_count() const;

35

36 // z must be in [0, 1]

37 int get_slice_idx_by_z(float z) const;

38

39 unsigned int get_texture() const;

40

41 void create_mesh(Mesh *mesh, float tmin, float tmax, int xres, int yres, int zres);

42

43 void draw() const;

44 };

45

46 float transfer_function(float x, float low_thres, float high_thres);

47

48 #endif // VOLUME_H_