| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights
2 // See the file tools.license for terms.
3
4 #ifndef tools_box_3f
5 #define tools_box_3f
6
7 #include "../mnmx"
8
9 #include <cfloat> // FLT_MAX
10
11 namespace tools {
12
13 // optimization (used in exlib/sg/text_hershey
14
15 inline void box_3f_make_empty(float& a_mn_x,fl
16 float& a_mx_x,flo
17 a_mn_x = FLT_MAX;
18 a_mn_y = FLT_MAX;
19 a_mn_z = FLT_MAX;
20 a_mx_x = -FLT_MAX;
21 a_mx_y = -FLT_MAX;
22 a_mx_z = -FLT_MAX;
23 }
24 inline void box_3f_extend_by(float& a_mn_x,flo
25 float& a_mx_x,floa
26 float a_x,float a_
27 if(a_mx_x<a_mn_x){ //is empty.
28 a_mn_x = a_x;
29 a_mn_y = a_y;
30 a_mn_z = a_z;
31
32 a_mx_x = a_x;
33 a_mx_y = a_y;
34 a_mx_z = a_z;
35 } else {
36 a_mn_x = mn<float>(a_x,a_mn_x);
37 a_mn_y = mn<float>(a_y,a_mn_y);
38 a_mn_z = mn<float>(a_z,a_mn_z);
39
40 a_mx_x = mx<float>(a_x,a_mx_x);
41 a_mx_y = mx<float>(a_y,a_mx_y);
42 a_mx_z = mx<float>(a_z,a_mx_z);
43 }
44 }
45 inline bool box_3f_is_empty(float a_mn_x,float
46 return a_mx_x < a_mn_x;
47 }
48
49 }
50
51 #endif