| 1 | // File: OpenGl_View_1.cxx |
| 2 | // Created: 20 September 2011 |
| 3 | // Author: Sergey ZERCHANINOV |
| 4 | // Copyright: OPEN CASCADE 2011 |
| 5 | |
| 6 | #include <OpenGl_GlCore11.hxx> |
| 7 | |
| 8 | #include <OpenGl_View.hxx> |
| 9 | |
| 10 | #include <Visual3d_Layer.hxx> |
| 11 | |
| 12 | #include <OpenGl_tgl_funcs.hxx> |
| 13 | #include <OpenGl_PrinterContext.hxx> |
| 14 | #include <OpenGl_Workspace.hxx> |
| 15 | |
| 16 | #include <GL/glu.h> // gluProject(), gluUnProject() |
| 17 | |
| 18 | /*----------------------------------------------------------------------*/ |
| 19 | |
| 20 | //TelProjectionRaster in OpenGl_telem_util.cxx |
| 21 | Standard_Boolean OpenGl_View::ProjectObjectToRaster (const Standard_Integer w, const Standard_Integer h, |
| 22 | const Standard_ShortReal x, const Standard_ShortReal y, const Standard_ShortReal z, |
| 23 | Standard_ShortReal &xr, Standard_ShortReal &yr) |
| 24 | { |
| 25 | int i, j, k; |
| 26 | |
| 27 | GLdouble modelMatrix[16]; |
| 28 | for (k = 0, i = 0; i < 4; i++) |
| 29 | for (j = 0; j < 4; j++, k++) |
| 30 | modelMatrix[k] = ( GLdouble )myOrientationMatrix[i][j]; |
| 31 | |
| 32 | GLdouble projMatrix[16]; |
| 33 | for (k = 0, i = 0; i < 4; i++) |
| 34 | for (j = 0; j < 4; j++, k++) |
| 35 | projMatrix[k] = ( GLdouble )myMappingMatrix[i][j]; |
| 36 | |
| 37 | GLint viewport[4]; |
| 38 | viewport[0] = 0; |
| 39 | viewport[1] = 0; |
| 40 | viewport[2] = w; |
| 41 | viewport[3] = h; |
| 42 | |
| 43 | /* |
| 44 | * glGetIntegerv (GL_VIEWPORT, viewport); |
| 45 | * glGetDoublev (GL_MODELVIEW_MATRIX, modelMatrix); |
| 46 | * glGetDoublev (GL_PROJECTION_MATRIX, projMatrix); |
| 47 | */ |
| 48 | |
| 49 | GLdouble winx, winy, winz; |
| 50 | if (gluProject (( GLdouble )x, ( GLdouble )y, ( GLdouble )z, modelMatrix, projMatrix, viewport, &winx, &winy, &winz)) |
| 51 | { |
| 52 | xr = ( Standard_ShortReal )winx; |
| 53 | yr = ( Standard_ShortReal )winy; |
| 54 | return Standard_True; |
| 55 | } |
| 56 | |
| 57 | xr = 0.F; |
| 58 | yr = 0.F; |
| 59 | return Standard_False; |
| 60 | } |
| 61 | |
| 62 | /*----------------------------------------------------------------------*/ |
| 63 | //TelUnProjectionRaster |
| 64 | Standard_Boolean OpenGl_View::ProjectRasterToObject (const Standard_Integer w, const Standard_Integer h, |
| 65 | const Standard_Integer xr, const Standard_Integer yr, |
| 66 | Standard_ShortReal &x, Standard_ShortReal &y, Standard_ShortReal &z) |
| 67 | { |
| 68 | int i, j, k; |
| 69 | |
| 70 | GLdouble modelMatrix[16]; |
| 71 | for (k = 0, i = 0; i < 4; i++) |
| 72 | for (j = 0; j < 4; j++, k++) |
| 73 | modelMatrix[k] = ( GLdouble )myOrientationMatrix[i][j]; |
| 74 | |
| 75 | GLdouble projMatrix[16]; |
| 76 | for (k = 0, i = 0; i < 4; i++) |
| 77 | for (j = 0; j < 4; j++, k++) |
| 78 | projMatrix[k] = ( GLdouble )myMappingMatrix[i][j]; |
| 79 | |
| 80 | GLint viewport[4]; |
| 81 | viewport[0] = 0; |
| 82 | viewport[1] = 0; |
| 83 | viewport[2] = w; |
| 84 | viewport[3] = h; |
| 85 | |
| 86 | /* |
| 87 | * glGetIntegerv (GL_VIEWPORT, viewport); |
| 88 | * glGetDoublev (GL_MODELVIEW_MATRIX, modelMatrix); |
| 89 | * glGetDoublev (GL_PROJECTION_MATRIX, projMatrix); |
| 90 | */ |
| 91 | |
| 92 | GLdouble objx, objy, objz; |
| 93 | if (gluUnProject (( GLdouble )xr, ( GLdouble )yr, 0.0, modelMatrix, projMatrix, viewport, &objx, &objy, &objz)) |
| 94 | { |
| 95 | x = ( Standard_ShortReal )objx; |
| 96 | y = ( Standard_ShortReal )objy; |
| 97 | z = ( Standard_ShortReal )objz; |
| 98 | return Standard_True; |
| 99 | } |
| 100 | |
| 101 | x = 0.F; |
| 102 | y = 0.F; |
| 103 | z = 0.F; |
| 104 | return Standard_False; |
| 105 | } |
| 106 | |
| 107 | /*----------------------------------------------------------------------*/ |
| 108 | //TelUnProjectionRasterWithRay |
| 109 | Standard_Boolean OpenGl_View::ProjectRasterToObjectWithRay (const Standard_Integer w, const Standard_Integer h, |
| 110 | const Standard_Integer xr, const Standard_Integer yr, |
| 111 | Standard_ShortReal &x, Standard_ShortReal &y, Standard_ShortReal &z, |
| 112 | Standard_ShortReal &dx, Standard_ShortReal &dy, Standard_ShortReal &dz) |
| 113 | { |
| 114 | int i, j, k; |
| 115 | |
| 116 | GLdouble modelMatrix[16]; |
| 117 | for (k = 0, i = 0; i < 4; i++) |
| 118 | for (j = 0; j < 4; j++, k++) |
| 119 | modelMatrix[k] = ( GLdouble )myOrientationMatrix[i][j]; |
| 120 | |
| 121 | GLdouble projMatrix[16]; |
| 122 | for (k = 0, i = 0; i < 4; i++) |
| 123 | for (j = 0; j < 4; j++, k++) |
| 124 | projMatrix[k] = ( GLdouble )myMappingMatrix[i][j]; |
| 125 | |
| 126 | GLint viewport[4]; |
| 127 | viewport[0] = 0; |
| 128 | viewport[1] = 0; |
| 129 | viewport[2] = w; |
| 130 | viewport[3] = h; |
| 131 | |
| 132 | /* |
| 133 | * glGetIntegerv (GL_VIEWPORT, viewport); |
| 134 | * glGetDoublev (GL_MODELVIEW_MATRIX, modelMatrix); |
| 135 | * glGetDoublev (GL_PROJECTION_MATRIX, projMatrix); |
| 136 | */ |
| 137 | |
| 138 | const GLdouble winx = ( GLdouble )xr; |
| 139 | const GLdouble winy = ( GLdouble )yr; |
| 140 | |
| 141 | GLdouble objx, objy, objz; |
| 142 | if (gluUnProject (winx, winy, 0.0, modelMatrix, projMatrix, viewport, &objx, &objy, &objz)) |
| 143 | { |
| 144 | GLdouble objx1, objy1, objz1; |
| 145 | if (gluUnProject (winx, winy, -10.0, modelMatrix, projMatrix, viewport, &objx1, &objy1, &objz1)) |
| 146 | { |
| 147 | x = ( Standard_ShortReal )objx; |
| 148 | y = ( Standard_ShortReal )objy; |
| 149 | z = ( Standard_ShortReal )objz; |
| 150 | dx = ( Standard_ShortReal )(objx-objx1); |
| 151 | dy = ( Standard_ShortReal )(objy-objy1); |
| 152 | dz = ( Standard_ShortReal )(objz-objz1); |
| 153 | return Standard_True; |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | x = 0.F; |
| 158 | y = 0.F; |
| 159 | z = 0.F; |
| 160 | dx = 0.F; |
| 161 | dy = 0.F; |
| 162 | dz = 0.F; |
| 163 | return Standard_False; |
| 164 | } |
| 165 | |
| 166 | /*----------------------------------------------------------------------*/ |
| 167 | |
| 168 | //call_togl_inquiremat |
| 169 | void OpenGl_View::GetMatrices (TColStd_Array2OfReal& theMatOrient, |
| 170 | TColStd_Array2OfReal& theMatMapping, |
| 171 | const Standard_Boolean theIsCustom) const |
| 172 | { |
| 173 | int i, j; |
| 174 | if (theIsCustom) |
| 175 | { |
| 176 | // OCC18942: Trying to return the current matrices instead of calculating them anew. |
| 177 | // This in particular allows using application-defined matrices. |
| 178 | for (i = 0; i < 4; ++i) |
| 179 | { |
| 180 | for (j = 0; j < 4; ++j) |
| 181 | { |
| 182 | theMatOrient (i, j) = myOrientationMatrix[j][i]; |
| 183 | theMatMapping (i, j) = myMappingMatrix[j][i]; |
| 184 | } |
| 185 | } |
| 186 | return; |
| 187 | } |
| 188 | |
| 189 | int anErr = 0; |
| 190 | Tmatrix3 aMatOri; |
| 191 | Tmatrix3 aMatMapping; |
| 192 | |
| 193 | view_map3 aViewMap; |
| 194 | memcpy (&aViewMap.win, &myExtra.map.window, sizeof(Tlimit)); |
| 195 | memcpy (&aViewMap.proj_vp, &myExtra.map.viewport, sizeof(Tlimit3)); |
| 196 | switch (myExtra.map.proj) |
| 197 | { |
| 198 | default: |
| 199 | case TelParallel: aViewMap.proj_type = TYPE_PARAL; break; |
| 200 | case TelPerspective: aViewMap.proj_type = TYPE_PERSPECT; break; |
| 201 | } |
| 202 | aViewMap.proj_ref_point.x = myExtra.map.prp[0]; |
| 203 | aViewMap.proj_ref_point.y = myExtra.map.prp[1]; |
| 204 | aViewMap.proj_ref_point.z = myExtra.map.prp[2]; |
| 205 | aViewMap.view_plane = myExtra.map.vpd; |
| 206 | aViewMap.back_plane = myExtra.map.bpd; |
| 207 | aViewMap.front_plane = myExtra.map.fpd; |
| 208 | |
| 209 | call_func_eval_ori_matrix3 ((const point3* )myExtra.vrp, |
| 210 | (const vec3* )myExtra.vpn, |
| 211 | (const vec3* )myExtra.vup, |
| 212 | &anErr, aMatOri); |
| 213 | if (anErr == 0) |
| 214 | call_func_eval_map_matrix3 (&aViewMap, &anErr, aMatMapping); |
| 215 | |
| 216 | if (anErr == 0) |
| 217 | { |
| 218 | for (i = 0; i < 4; ++i) |
| 219 | { |
| 220 | for (j = 0; j < 4; ++j) |
| 221 | { |
| 222 | theMatOrient (i, j) = aMatOri[j][i]; |
| 223 | theMatMapping (i, j) = aMatMapping[j][i]; |
| 224 | } |
| 225 | } |
| 226 | return; |
| 227 | } |
| 228 | |
| 229 | // return just identity matrices |
| 230 | for (i = 0; i < 4; ++i) |
| 231 | { |
| 232 | for (j = 0; j < 4; ++j) |
| 233 | { |
| 234 | if (i == j) { |
| 235 | theMatMapping (i, j) = 1.0; |
| 236 | theMatOrient (i, j) = 1.0; |
| 237 | } |
| 238 | else { |
| 239 | theMatMapping (i, j) = 0.0; |
| 240 | theMatOrient (i, j) = 0.0; |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | /*----------------------------------------------------------------------*/ |