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1 // Copyright (C) 2010, Guy Barrand. All rights 1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms. 2 // See the file tools.license for terms.
3 3
4 #ifndef tools_sg_mnmx 4 #ifndef tools_sg_mnmx
5 #define tools_sg_mnmx 5 #define tools_sg_mnmx
6 6
7 #include "node" 7 #include "node"
8 #include "bbox_action" 8 #include "bbox_action"
9 9
10 namespace tools { 10 namespace tools {
11 11
12 inline bool mnmx(std::ostream& a_out,sg::node& 12 inline bool mnmx(std::ostream& a_out,sg::node& a_node,vec3f& a_mn,vec3f& a_mx){
13 sg::bbox_action action(a_out); 13 sg::bbox_action action(a_out);
14 a_node.bbox(action); 14 a_node.bbox(action);
15 if(!action.end() || action.box().is_empty()) 15 if(!action.end() || action.box().is_empty()) {
16 a_out << "tools::mnmx :" 16 a_out << "tools::mnmx :"
17 << " bbox problem." 17 << " bbox problem."
18 << std::endl; 18 << std::endl;
19 a_mn.set_value(0,0,0); 19 a_mn.set_value(0,0,0);
20 a_mx.set_value(0,0,0); 20 a_mx.set_value(0,0,0);
21 return false; 21 return false;
22 } 22 }
23 a_mn = action.box().mn(); 23 a_mn = action.box().mn();
24 a_mx = action.box().mx(); 24 a_mx = action.box().mx();
25 return true; 25 return true;
26 } 26 }
27 27
28 } 28 }
29 29
30 #include "matrix" 30 #include "matrix"
31 31
32 namespace tools { 32 namespace tools {
33 33
34 inline bool center_adjust(std::ostream& a_out, 34 inline bool center_adjust(std::ostream& a_out,
35 sg::node& a_node,sg: 35 sg::node& a_node,sg::matrix& a_tsf,
36 unsigned int a_ww,un 36 unsigned int a_ww,unsigned int a_wh,
37 float a_height, 37 float a_height,
38 float& a_dx,float& a 38 float& a_dx,float& a_dy,float& a_dz,
39 bool a_verbose = tru 39 bool a_verbose = true) {
40 //NOTE : we assume an ortho camera. 40 //NOTE : we assume an ortho camera.
41 if(!a_ww||!a_wh) { 41 if(!a_ww||!a_wh) {
42 if(a_verbose) { 42 if(a_verbose) {
43 a_out << "tools::center_adjust :" 43 a_out << "tools::center_adjust :"
44 << " null viewer width or height." 44 << " null viewer width or height."
45 << std::endl; 45 << std::endl;
46 } 46 }
47 a_dx = 0;a_dy = 0;a_dz = 0; 47 a_dx = 0;a_dy = 0;a_dz = 0;
48 return false; 48 return false;
49 } 49 }
50 sg::bbox_action _action(a_out); 50 sg::bbox_action _action(a_out);
51 a_node.bbox(_action); 51 a_node.bbox(_action);
52 if(!_action.box().get_size(a_dx,a_dy,a_dz)) 52 if(!_action.box().get_size(a_dx,a_dy,a_dz)) {
53 if(a_verbose) { 53 if(a_verbose) {
54 a_out << "tools::center_adjust :" 54 a_out << "tools::center_adjust :"
55 << " empty box." 55 << " empty box."
56 << std::endl; 56 << std::endl;
57 } 57 }
58 a_dx = 0;a_dy = 0;a_dz = 0; 58 a_dx = 0;a_dy = 0;a_dz = 0;
59 return false; 59 return false;
60 } 60 }
61 if(!a_dx||!a_dy) { 61 if(!a_dx||!a_dy) {
62 if(a_verbose) { 62 if(a_verbose) {
63 a_out << "tools::center_adjust :" 63 a_out << "tools::center_adjust :"
64 << " dx or dy null." 64 << " dx or dy null."
65 << std::endl; 65 << std::endl;
66 } 66 }
67 a_dx = 0;a_dy = 0;a_dz = 0; 67 a_dx = 0;a_dy = 0;a_dz = 0;
68 return false; 68 return false;
69 } 69 }
70 vec3f c; 70 vec3f c;
71 if(!_action.box().center(c)) { 71 if(!_action.box().center(c)) {
72 if(a_verbose) { 72 if(a_verbose) {
73 a_out << "tools::center_adjust :" 73 a_out << "tools::center_adjust :"
74 << " can't get box center." 74 << " can't get box center."
75 << std::endl; 75 << std::endl;
76 } 76 }
77 a_dx = 0;a_dy = 0;a_dz = 0; 77 a_dx = 0;a_dy = 0;a_dz = 0;
78 return false; 78 return false;
79 } 79 }
80 float vp_aspect = float(a_ww)/float(a_wh); 80 float vp_aspect = float(a_ww)/float(a_wh);
81 float scene_aspect = float(a_dx)/float(a_dy) 81 float scene_aspect = float(a_dx)/float(a_dy);
82 //::printf("debug : set_tsf : %d %d : %g %g 82 //::printf("debug : set_tsf : %d %d : %g %g %g : %g %g\n",
83 // a_ww,a_wh,a_dx,a_dy,a_dz,vp_aspect,sce 83 // a_ww,a_wh,a_dx,a_dy,a_dz,vp_aspect,scene_aspect);
84 float scale; 84 float scale;
85 if(vp_aspect>=scene_aspect) { 85 if(vp_aspect>=scene_aspect) {
86 scale = a_height/a_dy; 86 scale = a_height/a_dy;
87 } else { 87 } else {
88 scale = (vp_aspect*a_height)/a_dx; 88 scale = (vp_aspect*a_height)/a_dx;
89 } 89 }
90 a_tsf.set_scale(scale,scale,scale); 90 a_tsf.set_scale(scale,scale,scale);
91 a_tsf.mul_translate(-c.x(),-c.y(),0); 91 a_tsf.mul_translate(-c.x(),-c.y(),0);
92 return true; 92 return true;
93 } 93 }
94 94
95 inline bool center_adjust(std::ostream& a_out, 95 inline bool center_adjust(std::ostream& a_out,
96 sg::node& a_node,sg: 96 sg::node& a_node,sg::matrix& a_tsf,
97 unsigned int a_ww,un 97 unsigned int a_ww,unsigned int a_wh,
98 float a_height,bool 98 float a_height,bool a_verbose = true) {
99 float dx,dy,dz; 99 float dx,dy,dz;
100 return center_adjust(a_out,a_node,a_tsf,a_ww 100 return center_adjust(a_out,a_node,a_tsf,a_ww,a_wh,a_height,
101 dx,dy,dz,a_verbose); 101 dx,dy,dz,a_verbose);
102 } 102 }
103 103
104 } 104 }
105 105
106 #endif 106 #endif