gl_aaboundingbox.h
1.37 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
#ifndef STIM_GL_AABB
#define STIM_GL_AABB
#include <stim/visualization/aaboundingbox.h>
#include <GL/gl.h>
namespace stim{
template <typename T>
class gl_aaboundingbox : public aaboundingbox<T>{
public:
using stim::aaboundingbox<T>::A;
using stim::aaboundingbox<T>::B;
//default constructor
gl_aaboundingbox() : stim::aaboundingbox<T>(){}
//constructor takes an AABB
gl_aaboundingbox(stim::aaboundingbox<T> b) : stim::aaboundingbox<T>(b){}
/// Specifies vertices of the bounding box using CW winding. Use GL_LINE_LOOP for wireframe or GL_QUADS for a solid.
void glWire(){
//front plane (in A[2])
glBegin(GL_LINE_LOOP);
glVertex3f(A[0], A[1], A[2]);
glVertex3f(A[0], B[1], A[2]);
glVertex3f(B[0], B[1], A[2]);
glVertex3f(B[0], A[1], A[2]);
glEnd();
//back plane (in B[2])
glBegin(GL_LINE_LOOP);
glVertex3f(B[0], B[1], B[2]);
glVertex3f(A[0], B[1], B[2]);
glVertex3f(A[0], A[1], B[2]);
glVertex3f(B[0], A[1], B[2]);
glEnd();
//fill out the rest of the lines to connect the two faces
glBegin(GL_LINES);
glVertex3f(A[0], B[1], A[2]);
glVertex3f(A[0], B[1], B[2]);
glVertex3f(B[0], B[1], B[2]);
glVertex3f(B[0], B[1], A[2]);
glVertex3f(B[0], A[1], A[2]);
glVertex3f(B[0], A[1], B[2]);
glVertex3f(A[0], A[1], B[2]);
glVertex3f(A[0], A[1], A[2]);
glEnd();
}
}; //end stim::gl_aabb
}; //end namespace stim
#endif