Warning, /include/Geant4/tools/sg/state is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_sg_state
0005 #define tools_sg_state
0006
0007 #include <string>
0008
0009 #include "../lina/rotf" //m_camera_orientation
0010 #include "../lina/mat4f"
0011 #include "../lina/vec3f"
0012 #include "../lina/vec4f"
0013 #include "../colorf"
0014
0015 #include "enums"
0016
0017 namespace tools {
0018 namespace sg {
0019
0020 class state {
0021 public:
0022 state()
0023 //must be consistent with tools::sg::viewer::render.
0024 :m_ww(0)
0025 ,m_wh(0)
0026
0027 ,m_GL_DEPTH_TEST(true)
0028 ,m_GL_LIGHTING(false)
0029 ,m_GL_CULL_FACE(true)
0030 ,m_GL_POLYGON_OFFSET_FILL(false)
0031 ,m_GL_TEXTURE_2D(false)
0032 ,m_GL_POINT_SMOOTH(false)
0033 ,m_GL_LINE_SMOOTH(false)
0034 ,m_GL_BLEND(false)
0035
0036 ,m_use_gsto(false)
0037
0038 ,m_winding(winding_ccw)
0039 ,m_color(1,1,1,1)
0040 ,m_normal(0,0,1)
0041
0042 ,m_light(0)
0043
0044 ,m_draw_type(sg::draw_filled)
0045 ,m_shade_model(sg::shade_flat)
0046
0047 ,m_line_width(1)
0048 ,m_line_pattern(sg::line_solid)
0049 ,m_point_size(1)
0050
0051 ,m_camera_ortho(true)
0052 ,m_camera_znear(1)
0053 ,m_camera_zfar(10)
0054 ,m_camera_position(vec3f(0,0,1))
0055 ,m_camera_orientation(rotf(vec3f(0,0,1),0))
0056 ,m_camera_lrbt(0,0,0,0)
0057 {
0058 }
0059 virtual ~state(){
0060 }
0061 public:
0062 state(const state& a_from)
0063 :m_ww(a_from.m_ww)
0064 ,m_wh(a_from.m_wh)
0065
0066 ,m_proj(a_from.m_proj)
0067 ,m_model(a_from.m_model)
0068
0069 ,m_GL_DEPTH_TEST(a_from.m_GL_DEPTH_TEST)
0070 ,m_GL_LIGHTING(a_from.m_GL_LIGHTING)
0071 ,m_GL_CULL_FACE(a_from.m_GL_CULL_FACE)
0072 ,m_GL_POLYGON_OFFSET_FILL(a_from.m_GL_POLYGON_OFFSET_FILL)
0073 ,m_GL_TEXTURE_2D(a_from.m_GL_TEXTURE_2D)
0074 ,m_GL_POINT_SMOOTH(a_from.m_GL_POINT_SMOOTH)
0075 ,m_GL_LINE_SMOOTH(a_from.m_GL_LINE_SMOOTH)
0076 ,m_GL_BLEND(a_from.m_GL_BLEND)
0077
0078 ,m_use_gsto(a_from.m_use_gsto)
0079
0080 ,m_winding(a_from.m_winding)
0081 ,m_color(a_from.m_color)
0082 ,m_normal(a_from.m_normal)
0083
0084 ,m_light(a_from.m_light)
0085
0086 ,m_draw_type(a_from.m_draw_type)
0087 ,m_shade_model(a_from.m_shade_model)
0088
0089 ,m_line_width(a_from.m_line_width)
0090 ,m_line_pattern(a_from.m_line_pattern)
0091 ,m_point_size(a_from.m_point_size)
0092
0093 ,m_camera_ortho(a_from.m_camera_ortho)
0094 ,m_camera_znear(a_from.m_camera_znear)
0095 ,m_camera_zfar(a_from.m_camera_zfar)
0096 ,m_camera_position(a_from.m_camera_position)
0097 ,m_camera_orientation(a_from.m_camera_orientation)
0098 ,m_camera_lrbt(a_from.m_camera_lrbt)
0099 {
0100 }
0101 state& operator=(const state& a_from){
0102 m_ww = a_from.m_ww;
0103 m_wh = a_from.m_wh;
0104
0105 m_proj = a_from.m_proj;
0106 m_model = a_from.m_model;
0107
0108 m_GL_DEPTH_TEST = a_from.m_GL_DEPTH_TEST;
0109 m_GL_LIGHTING = a_from.m_GL_LIGHTING;
0110 m_GL_CULL_FACE = a_from.m_GL_CULL_FACE;
0111 m_GL_POLYGON_OFFSET_FILL = a_from.m_GL_POLYGON_OFFSET_FILL;
0112 m_GL_TEXTURE_2D = a_from.m_GL_TEXTURE_2D;
0113 m_GL_POINT_SMOOTH = a_from.m_GL_POINT_SMOOTH;
0114 m_GL_LINE_SMOOTH = a_from.m_GL_LINE_SMOOTH;
0115 m_GL_BLEND = a_from.m_GL_BLEND;
0116
0117 m_use_gsto = a_from.m_use_gsto;
0118
0119 m_winding = a_from.m_winding;
0120 m_color = a_from.m_color;
0121 m_normal = a_from.m_normal;
0122
0123 m_light = a_from.m_light;
0124
0125 m_draw_type = a_from.m_draw_type;
0126 m_shade_model = a_from.m_shade_model;
0127
0128 m_line_width = a_from.m_line_width;
0129 m_line_pattern = a_from.m_line_pattern;
0130 m_point_size = a_from.m_point_size;
0131
0132 m_camera_ortho = a_from.m_camera_ortho;
0133 m_camera_znear = a_from.m_camera_znear;
0134 m_camera_zfar = a_from.m_camera_zfar;
0135 m_camera_position = a_from.m_camera_position;
0136 m_camera_orientation = a_from.m_camera_orientation;
0137 m_camera_lrbt = a_from.m_camera_lrbt;
0138
0139 return *this;
0140 }
0141 public:
0142 bool project_point(float& a_x,float& a_y,float& a_z,float& a_w) const {
0143 a_w = 1;
0144 m_model.mul_4f(a_x,a_y,a_z,a_w);
0145 m_proj.mul_4f(a_x,a_y,a_z,a_w);
0146 if(a_w==0.0F) return false;
0147 a_x /= a_w;
0148 a_y /= a_w;
0149 a_z /= a_w;
0150 return true;
0151 }
0152
0153 void screen2ndc(int a_x,int a_y, //signed because of wall.
0154 float& a_wcx,float& a_wcy,float& a_wcz,float& a_wcw) const {
0155 // a proj point in near plane has (z,w) :
0156 // ortho -1,1 -> z/w = -1 and xy in [-1,1][-1,1]
0157 // persp -n,n -> z/w = -1 and xy in [-n,n][-n,n]
0158
0159 a_wcx = 2*(float(a_x)/float(m_ww)-0.5f); //in [-1,1]
0160 a_wcy = 2*(float(a_y)/float(m_wh)-0.5f);
0161 a_wcz = -1;
0162
0163 if(m_camera_ortho) {
0164 a_wcw = 1;
0165 } else {
0166 float t = m_camera_znear;
0167 a_wcx *= t;
0168 a_wcy *= t;
0169 a_wcz *= t;
0170 a_wcw = t;
0171 }
0172 }
0173
0174 bool screen2wc(int a_x,int a_y, //signed because of wall.
0175 float& a_wcx,float& a_wcy,float& a_wcz) const {
0176 mat4f mtx = m_proj;
0177 mtx.mul_mtx(m_model);
0178 mat4f inv;
0179 if(!mtx.invert(inv)) {a_wcx = 0;a_wcy = 0;a_wcz = 0;return false;}
0180 float w;
0181 screen2ndc(a_x,a_y,a_wcx,a_wcy,a_wcz,w);
0182 inv.mul_4f(a_wcx,a_wcy,a_wcz,w);
0183 if(w==0.0F) return false;
0184 a_wcx /= w;
0185 a_wcy /= w;
0186 a_wcz /= w;
0187 return true;
0188 }
0189 bool screen2pwc(int a_x,int a_y, //signed because of wall.
0190 float& a_wcx,float& a_wcy,float& a_wcz) const {
0191 mat4f mtx = m_proj;
0192 mat4f inv;
0193 if(!mtx.invert(inv)) {a_wcx = 0;a_wcy = 0;a_wcz = 0;return false;}
0194 float w;
0195 screen2ndc(a_x,a_y,a_wcx,a_wcy,a_wcz,w);
0196 inv.mul_4f(a_wcx,a_wcy,a_wcz,w);
0197 if(w==0.0F) return false;
0198 a_wcx /= w;
0199 a_wcy /= w;
0200 a_wcz /= w;
0201 return true;
0202 }
0203 void camera_proj_only(mat4f& a_mtx) const {
0204 float l = m_camera_lrbt[0];
0205 float r = m_camera_lrbt[1];
0206 float b = m_camera_lrbt[2];
0207 float t = m_camera_lrbt[3];
0208 float n = m_camera_znear;
0209 float f = m_camera_zfar;
0210 if(m_camera_ortho) {
0211 a_mtx.set_ortho(l,r,b,t,n,f);
0212 } else {
0213 a_mtx.set_frustum(l,r,b,t,n,f);
0214 }
0215 }
0216
0217 public:
0218 unsigned int m_ww; //window width
0219 unsigned int m_wh; //window height
0220
0221 mat4f m_proj;
0222 mat4f m_model;
0223
0224 bool m_GL_DEPTH_TEST;
0225 bool m_GL_LIGHTING;
0226 bool m_GL_CULL_FACE;
0227 bool m_GL_POLYGON_OFFSET_FILL;
0228 bool m_GL_TEXTURE_2D;
0229 bool m_GL_POINT_SMOOTH;
0230 bool m_GL_LINE_SMOOTH;
0231 bool m_GL_BLEND;
0232
0233 bool m_use_gsto;
0234
0235 winding_type m_winding;
0236 colorf m_color;
0237 vec3f m_normal;
0238
0239 unsigned int m_light;
0240
0241 draw_type m_draw_type;
0242 shade_type m_shade_model;
0243
0244 float m_line_width;
0245 unsigned short m_line_pattern;
0246 float m_point_size;
0247
0248 //camera (see base_camera::set_state()) :
0249 bool m_camera_ortho;
0250 float m_camera_znear;
0251 float m_camera_zfar;
0252 vec3f m_camera_position;
0253 rotf m_camera_orientation; //used by head_light
0254 vec4f m_camera_lrbt;
0255 };
0256
0257 }}
0258
0259 #endif
