[529] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
[1274] | 27 | // $Id: G4OpenGLViewer.cc,v 1.62 2010/05/11 10:22:37 allison Exp $ |
---|
[873] | 28 | // GEANT4 tag $Name: $ |
---|
[529] | 29 | // |
---|
| 30 | // |
---|
| 31 | // Andrew Walkden 27th March 1996 |
---|
| 32 | // OpenGL view - opens window, hard copy, etc. |
---|
| 33 | |
---|
| 34 | #ifdef G4VIS_BUILD_OPENGL_DRIVER |
---|
| 35 | |
---|
| 36 | #include "G4ios.hh" |
---|
| 37 | #include "G4OpenGLViewer.hh" |
---|
| 38 | #include "G4OpenGLSceneHandler.hh" |
---|
| 39 | #include "G4OpenGLTransform3D.hh" |
---|
[923] | 40 | #include "G4OpenGL2PSAction.hh" |
---|
[529] | 41 | |
---|
| 42 | #include "G4Scene.hh" |
---|
| 43 | #include "G4VisExtent.hh" |
---|
| 44 | #include "G4LogicalVolume.hh" |
---|
| 45 | #include "G4VSolid.hh" |
---|
| 46 | #include "G4Point3D.hh" |
---|
| 47 | #include "G4Normal3D.hh" |
---|
| 48 | #include "G4Plane3D.hh" |
---|
[593] | 49 | #include "G4AttHolder.hh" |
---|
| 50 | #include "G4AttCheck.hh" |
---|
[918] | 51 | |
---|
[923] | 52 | // GL2PS |
---|
| 53 | #include "Geant4_gl2ps.h" |
---|
| 54 | |
---|
[593] | 55 | #include <sstream> |
---|
[529] | 56 | |
---|
| 57 | G4OpenGLViewer::G4OpenGLViewer (G4OpenGLSceneHandler& scene): |
---|
| 58 | G4VViewer (scene, -1), |
---|
[916] | 59 | fPrintColour (true), |
---|
| 60 | fVectoredPs (true), |
---|
[593] | 61 | fOpenGLSceneHandler(scene), |
---|
[529] | 62 | background (G4Colour(0.,0.,0.)), |
---|
| 63 | transparency_enabled (true), |
---|
| 64 | antialiasing_enabled (false), |
---|
| 65 | haloing_enabled (false), |
---|
[789] | 66 | fStartTime(-DBL_MAX), |
---|
| 67 | fEndTime(DBL_MAX), |
---|
[529] | 68 | fFadeFactor(0.), |
---|
| 69 | fDisplayHeadTime(false), |
---|
| 70 | fDisplayHeadTimeX(-0.9), |
---|
| 71 | fDisplayHeadTimeY(-0.9), |
---|
| 72 | fDisplayHeadTimeSize(24.), |
---|
| 73 | fDisplayHeadTimeRed(0.), |
---|
| 74 | fDisplayHeadTimeGreen(1.), |
---|
| 75 | fDisplayHeadTimeBlue(1.), |
---|
| 76 | fDisplayLightFront(false), |
---|
| 77 | fDisplayLightFrontX(0.), |
---|
| 78 | fDisplayLightFrontY(0.), |
---|
| 79 | fDisplayLightFrontZ(0.), |
---|
| 80 | fDisplayLightFrontT(0.), |
---|
| 81 | fDisplayLightFrontRed(0.), |
---|
| 82 | fDisplayLightFrontGreen(1.), |
---|
[916] | 83 | fDisplayLightFrontBlue(0.), |
---|
[1041] | 84 | fPrintSizeX(-1), |
---|
| 85 | fPrintSizeY(-1), |
---|
[1042] | 86 | fPrintFilename ("G4OpenGL"), |
---|
[1041] | 87 | fPrintFilenameIndex(0), |
---|
[1039] | 88 | fPointSize (0), |
---|
| 89 | fSizeHasChanged(0) |
---|
[529] | 90 | { |
---|
| 91 | // Make changes to view parameters for OpenGL... |
---|
| 92 | fVP.SetAutoRefresh(true); |
---|
| 93 | fDefaultVP.SetAutoRefresh(true); |
---|
| 94 | |
---|
[921] | 95 | fGL2PSAction = new G4OpenGL2PSAction(); |
---|
| 96 | |
---|
[529] | 97 | // glClearColor (0.0, 0.0, 0.0, 0.0); |
---|
| 98 | // glClearDepth (1.0); |
---|
| 99 | // glDisable (GL_BLEND); |
---|
| 100 | // glDisable (GL_LINE_SMOOTH); |
---|
| 101 | // glDisable (GL_POLYGON_SMOOTH); |
---|
| 102 | |
---|
[1196] | 103 | } |
---|
[529] | 104 | |
---|
[1242] | 105 | G4OpenGLViewer::~G4OpenGLViewer () {} |
---|
| 106 | |
---|
[529] | 107 | void G4OpenGLViewer::InitializeGLView () |
---|
| 108 | { |
---|
| 109 | glClearColor (0.0, 0.0, 0.0, 0.0); |
---|
| 110 | glClearDepth (1.0); |
---|
| 111 | glDisable (GL_BLEND); |
---|
| 112 | glDisable (GL_LINE_SMOOTH); |
---|
| 113 | glDisable (GL_POLYGON_SMOOTH); |
---|
[1095] | 114 | |
---|
[1315] | 115 | // if (fVP != NULL) { |
---|
[1314] | 116 | fWinSize_x = fVP.GetWindowSizeHintX(); |
---|
| 117 | fWinSize_y = fVP.GetWindowSizeHintY(); |
---|
[1315] | 118 | // } |
---|
[529] | 119 | } |
---|
| 120 | |
---|
| 121 | void G4OpenGLViewer::ClearView () { |
---|
[959] | 122 | #ifdef G4DEBUG_VIS_OGL |
---|
[1245] | 123 | printf("G4OpenGLViewer::ClearView\n"); |
---|
[959] | 124 | #endif |
---|
[529] | 125 | glClearColor (background.GetRed(), |
---|
| 126 | background.GetGreen(), |
---|
| 127 | background.GetBlue(), |
---|
| 128 | 1.); |
---|
| 129 | glClearDepth (1.0); |
---|
| 130 | //Below line does not compile with Mesa includes. |
---|
| 131 | //glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
---|
| 132 | glClear (GL_COLOR_BUFFER_BIT); |
---|
| 133 | glClear (GL_DEPTH_BUFFER_BIT); |
---|
| 134 | glClear (GL_STENCIL_BUFFER_BIT); |
---|
[955] | 135 | #ifdef G4DEBUG_VIS_OGL |
---|
| 136 | printf("G4OpenGLViewer::ClearView flush\n"); |
---|
| 137 | #endif |
---|
[529] | 138 | glFlush (); |
---|
| 139 | } |
---|
| 140 | |
---|
[906] | 141 | |
---|
[1039] | 142 | void G4OpenGLViewer::ResizeWindow(unsigned int aWidth, unsigned int aHeight) { |
---|
[1038] | 143 | if ((fWinSize_x != aWidth) || (fWinSize_y != aHeight)) { |
---|
[1037] | 144 | fWinSize_x = aWidth; |
---|
| 145 | fWinSize_y = aHeight; |
---|
[1039] | 146 | fSizeHasChanged = true; |
---|
| 147 | } else { |
---|
| 148 | fSizeHasChanged = false; |
---|
[1037] | 149 | } |
---|
| 150 | } |
---|
| 151 | |
---|
[906] | 152 | /** |
---|
| 153 | * Set the viewport of the scene |
---|
[945] | 154 | * MAXIMUM SIZE is : |
---|
| 155 | * GLint dims[2]; |
---|
| 156 | * glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); |
---|
[906] | 157 | */ |
---|
| 158 | void G4OpenGLViewer::ResizeGLView() |
---|
| 159 | { |
---|
[959] | 160 | #ifdef G4DEBUG_VIS_OGL |
---|
[1242] | 161 | printf("G4OpenGLViewer::ResizeGLView %d %d &:%d\n",fWinSize_x,fWinSize_y,this); |
---|
[959] | 162 | #endif |
---|
[945] | 163 | // Check size |
---|
| 164 | GLint dims[2]; |
---|
| 165 | glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); |
---|
[1233] | 166 | |
---|
| 167 | if ((dims[0] !=0 ) && (dims[1] !=0)) { |
---|
| 168 | |
---|
| 169 | if (fWinSize_x > (unsigned)dims[0]) { |
---|
| 170 | G4cerr << "Try to resize view greater than max X viewport dimension. Desired size "<<dims[0] <<" is resize to "<< dims[0] << G4endl; |
---|
| 171 | fWinSize_x = dims[0]; |
---|
| 172 | } |
---|
| 173 | if (fWinSize_y > (unsigned)dims[1]) { |
---|
| 174 | G4cerr << "Try to resize view greater than max Y viewport dimension. Desired size "<<dims[0] <<" is resize to "<< dims[1] << G4endl; |
---|
| 175 | fWinSize_y = dims[1]; |
---|
| 176 | } |
---|
[945] | 177 | } |
---|
[1242] | 178 | |
---|
[1245] | 179 | glViewport(0, 0, fWinSize_x,fWinSize_y); |
---|
| 180 | |
---|
[1307] | 181 | #ifdef G4DEBUG_VIS_OGL |
---|
| 182 | printf("G4OpenGLViewer::ResizeGLView END %d %d &:%d\n",fWinSize_x,fWinSize_y,this); |
---|
| 183 | #endif |
---|
[1245] | 184 | |
---|
[906] | 185 | } |
---|
| 186 | |
---|
| 187 | |
---|
[529] | 188 | void G4OpenGLViewer::SetView () { |
---|
[858] | 189 | |
---|
| 190 | if (!fSceneHandler.GetScene()) { |
---|
| 191 | return; |
---|
| 192 | } |
---|
[1307] | 193 | #ifdef G4DEBUG_VIS_OGL |
---|
| 194 | printf("G4OpenGLViewer::SetView\n"); |
---|
| 195 | #endif |
---|
[529] | 196 | // Calculates view representation based on extent of object being |
---|
| 197 | // viewed and (initial) viewpoint. (Note: it can change later due |
---|
| 198 | // to user interaction via visualization system's GUI.) |
---|
| 199 | |
---|
| 200 | // Lighting. |
---|
| 201 | GLfloat lightPosition [4]; |
---|
| 202 | lightPosition [0] = fVP.GetActualLightpointDirection().x(); |
---|
| 203 | lightPosition [1] = fVP.GetActualLightpointDirection().y(); |
---|
| 204 | lightPosition [2] = fVP.GetActualLightpointDirection().z(); |
---|
| 205 | lightPosition [3] = 0.; |
---|
| 206 | // Light position is "true" light direction, so must come after gluLookAt. |
---|
| 207 | GLfloat ambient [] = { 0.2, 0.2, 0.2, 1.}; |
---|
| 208 | GLfloat diffuse [] = { 0.8, 0.8, 0.8, 1.}; |
---|
| 209 | glEnable (GL_LIGHT0); |
---|
| 210 | glLightfv (GL_LIGHT0, GL_AMBIENT, ambient); |
---|
| 211 | glLightfv (GL_LIGHT0, GL_DIFFUSE, diffuse); |
---|
| 212 | |
---|
[1241] | 213 | G4double ratioX = 1; |
---|
| 214 | G4double ratioY = 1; |
---|
| 215 | if (fWinSize_y > fWinSize_x) { |
---|
| 216 | ratioX = ((G4double)fWinSize_y) / ((G4double)fWinSize_x); |
---|
| 217 | } |
---|
| 218 | if (fWinSize_x > fWinSize_y) { |
---|
| 219 | ratioY = ((G4double)fWinSize_x) / ((G4double)fWinSize_y); |
---|
| 220 | } |
---|
| 221 | |
---|
[529] | 222 | // Get radius of scene, etc. |
---|
| 223 | // Note that this procedure properly takes into account zoom, dolly and pan. |
---|
| 224 | const G4Point3D targetPoint |
---|
| 225 | = fSceneHandler.GetScene()->GetStandardTargetPoint() |
---|
| 226 | + fVP.GetCurrentTargetPoint (); |
---|
| 227 | G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius(); |
---|
| 228 | if(radius<=0.) radius = 1.; |
---|
| 229 | const G4double cameraDistance = fVP.GetCameraDistance (radius); |
---|
| 230 | const G4Point3D cameraPosition = |
---|
| 231 | targetPoint + cameraDistance * fVP.GetViewpointDirection().unit(); |
---|
[906] | 232 | const GLdouble pnear = fVP.GetNearDistance (cameraDistance, radius); |
---|
| 233 | const GLdouble pfar = fVP.GetFarDistance (cameraDistance, pnear, radius); |
---|
[1241] | 234 | const GLdouble right = fVP.GetFrontHalfHeight (pnear, radius) * ratioY; |
---|
[529] | 235 | const GLdouble left = -right; |
---|
[1241] | 236 | const GLdouble top = fVP.GetFrontHalfHeight (pnear, radius) * ratioX; |
---|
| 237 | const GLdouble bottom = -top; |
---|
[529] | 238 | |
---|
[906] | 239 | // FIXME |
---|
[1039] | 240 | ResizeGLView(); |
---|
[908] | 241 | //SHOULD SetWindowsSizeHint()... |
---|
[906] | 242 | |
---|
[529] | 243 | glMatrixMode (GL_PROJECTION); // set up Frustum. |
---|
| 244 | glLoadIdentity(); |
---|
| 245 | |
---|
[906] | 246 | const G4Vector3D scaleFactor = fVP.GetScaleFactor(); |
---|
| 247 | glScaled(scaleFactor.x(),scaleFactor.y(),scaleFactor.z()); |
---|
[529] | 248 | |
---|
| 249 | if (fVP.GetFieldHalfAngle() == 0.) { |
---|
| 250 | glOrtho (left, right, bottom, top, pnear, pfar); |
---|
| 251 | } |
---|
| 252 | else { |
---|
| 253 | glFrustum (left, right, bottom, top, pnear, pfar); |
---|
[908] | 254 | } |
---|
[906] | 255 | |
---|
[529] | 256 | glMatrixMode (GL_MODELVIEW); // apply further transformations to scene. |
---|
| 257 | glLoadIdentity(); |
---|
| 258 | |
---|
| 259 | const G4Normal3D& upVector = fVP.GetUpVector (); |
---|
| 260 | G4Point3D gltarget; |
---|
| 261 | if (cameraDistance > 1.e-6 * radius) { |
---|
| 262 | gltarget = targetPoint; |
---|
| 263 | } |
---|
| 264 | else { |
---|
| 265 | gltarget = targetPoint - radius * fVP.GetViewpointDirection().unit(); |
---|
| 266 | } |
---|
| 267 | |
---|
| 268 | const G4Point3D& pCamera = cameraPosition; // An alias for brevity. |
---|
| 269 | gluLookAt (pCamera.x(), pCamera.y(), pCamera.z(), // Viewpoint. |
---|
| 270 | gltarget.x(), gltarget.y(), gltarget.z(), // Target point. |
---|
| 271 | upVector.x(), upVector.y(), upVector.z()); // Up vector. |
---|
[906] | 272 | |
---|
[529] | 273 | // Light position is "true" light direction, so must come after gluLookAt. |
---|
| 274 | glLightfv (GL_LIGHT0, GL_POSITION, lightPosition); |
---|
| 275 | |
---|
| 276 | // OpenGL no longer seems to reconstruct clipped edges, so, when the |
---|
| 277 | // BooleanProcessor is up to it, abandon this and use generic |
---|
| 278 | // clipping in G4OpenGLSceneHandler::CreateSectionPolyhedron. Also, |
---|
| 279 | // force kernel visit on change of clipping plane in |
---|
| 280 | // G4OpenGLStoredViewer::CompareForKernelVisit. |
---|
[1274] | 281 | //if (fVP.IsSection () ) { // pair of back to back clip planes. |
---|
| 282 | if (false) { // pair of back to back clip planes. |
---|
[529] | 283 | const G4Plane3D& s = fVP.GetSectionPlane (); |
---|
| 284 | double sArray[4]; |
---|
| 285 | sArray[0] = s.a(); |
---|
| 286 | sArray[1] = s.b(); |
---|
| 287 | sArray[2] = s.c(); |
---|
| 288 | sArray[3] = s.d() + radius * 1.e-05; |
---|
| 289 | glClipPlane (GL_CLIP_PLANE0, sArray); |
---|
| 290 | glEnable (GL_CLIP_PLANE0); |
---|
| 291 | sArray[0] = -s.a(); |
---|
| 292 | sArray[1] = -s.b(); |
---|
| 293 | sArray[2] = -s.c(); |
---|
| 294 | sArray[3] = -s.d() + radius * 1.e-05; |
---|
| 295 | glClipPlane (GL_CLIP_PLANE1, sArray); |
---|
| 296 | glEnable (GL_CLIP_PLANE1); |
---|
| 297 | } else { |
---|
| 298 | glDisable (GL_CLIP_PLANE0); |
---|
| 299 | glDisable (GL_CLIP_PLANE1); |
---|
| 300 | } |
---|
| 301 | |
---|
| 302 | const G4Planes& cutaways = fVP.GetCutawayPlanes(); |
---|
| 303 | size_t nPlanes = cutaways.size(); |
---|
[1274] | 304 | //if (fVP.IsCutaway() && |
---|
| 305 | if (false && |
---|
[529] | 306 | fVP.GetCutawayMode() == G4ViewParameters::cutawayIntersection && |
---|
| 307 | nPlanes > 0) { |
---|
| 308 | double a[4]; |
---|
| 309 | a[0] = cutaways[0].a(); |
---|
| 310 | a[1] = cutaways[0].b(); |
---|
| 311 | a[2] = cutaways[0].c(); |
---|
| 312 | a[3] = cutaways[0].d(); |
---|
| 313 | glClipPlane (GL_CLIP_PLANE2, a); |
---|
| 314 | glEnable (GL_CLIP_PLANE2); |
---|
| 315 | if (nPlanes > 1) { |
---|
| 316 | a[0] = cutaways[1].a(); |
---|
| 317 | a[1] = cutaways[1].b(); |
---|
| 318 | a[2] = cutaways[1].c(); |
---|
| 319 | a[3] = cutaways[1].d(); |
---|
| 320 | glClipPlane (GL_CLIP_PLANE3, a); |
---|
| 321 | glEnable (GL_CLIP_PLANE3); |
---|
| 322 | } |
---|
| 323 | if (nPlanes > 2) { |
---|
| 324 | a[0] = cutaways[2].a(); |
---|
| 325 | a[1] = cutaways[2].b(); |
---|
| 326 | a[2] = cutaways[2].c(); |
---|
| 327 | a[3] = cutaways[2].d(); |
---|
| 328 | glClipPlane (GL_CLIP_PLANE4, a); |
---|
| 329 | glEnable (GL_CLIP_PLANE4); |
---|
| 330 | } |
---|
| 331 | } else { |
---|
| 332 | glDisable (GL_CLIP_PLANE2); |
---|
| 333 | glDisable (GL_CLIP_PLANE3); |
---|
| 334 | glDisable (GL_CLIP_PLANE4); |
---|
| 335 | } |
---|
| 336 | |
---|
| 337 | // Background. |
---|
| 338 | background = fVP.GetBackgroundColour (); |
---|
| 339 | |
---|
[1307] | 340 | #ifdef G4DEBUG_VIS_OGL |
---|
| 341 | printf("G4OpenGLViewer::SetView END\n"); |
---|
| 342 | #endif |
---|
[529] | 343 | } |
---|
| 344 | |
---|
| 345 | void G4OpenGLViewer::HaloingFirstPass () { |
---|
| 346 | |
---|
| 347 | //To perform haloing, first Draw all information to the depth buffer |
---|
| 348 | //alone, using a chunky line width, and then Draw all info again, to |
---|
| 349 | //the colour buffer, setting a thinner line width an the depth testing |
---|
| 350 | //function to less than or equal, so if two lines cross, the one |
---|
| 351 | //passing behind the other will not pass the depth test, and so not |
---|
| 352 | //get rendered either side of the infront line for a short distance. |
---|
| 353 | |
---|
| 354 | //First, disable writing to the colo(u)r buffer... |
---|
| 355 | glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
---|
| 356 | |
---|
| 357 | //Now enable writing to the depth buffer... |
---|
| 358 | glDepthMask (GL_TRUE); |
---|
| 359 | glDepthFunc (GL_LESS); |
---|
| 360 | glClearDepth (1.0); |
---|
| 361 | |
---|
| 362 | //Finally, set the line width to something wide... |
---|
| 363 | glLineWidth (3.0); |
---|
| 364 | |
---|
| 365 | } |
---|
| 366 | |
---|
| 367 | void G4OpenGLViewer::HaloingSecondPass () { |
---|
| 368 | |
---|
| 369 | //And finally, turn the colour buffer back on with a sesible line width... |
---|
| 370 | glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
---|
| 371 | glDepthFunc (GL_LEQUAL); |
---|
| 372 | glLineWidth (1.0); |
---|
| 373 | |
---|
| 374 | } |
---|
| 375 | |
---|
[593] | 376 | void G4OpenGLViewer::Pick(GLdouble x, GLdouble y) |
---|
| 377 | { |
---|
| 378 | //G4cout << "X: " << x << ", Y: " << y << G4endl; |
---|
| 379 | const G4int BUFSIZE = 512; |
---|
| 380 | GLuint selectBuffer[BUFSIZE]; |
---|
| 381 | glSelectBuffer(BUFSIZE, selectBuffer); |
---|
| 382 | glRenderMode(GL_SELECT); |
---|
| 383 | glInitNames(); |
---|
| 384 | glPushName(0); |
---|
| 385 | glMatrixMode(GL_PROJECTION); |
---|
| 386 | G4double currentProjectionMatrix[16]; |
---|
| 387 | glGetDoublev(GL_PROJECTION_MATRIX, currentProjectionMatrix); |
---|
| 388 | glPushMatrix(); |
---|
| 389 | glLoadIdentity(); |
---|
| 390 | GLint viewport[4]; |
---|
| 391 | glGetIntegerv(GL_VIEWPORT, viewport); |
---|
| 392 | // Define 5x5 pixel pick area |
---|
| 393 | gluPickMatrix(x, viewport[3] - y, 5., 5., viewport); |
---|
| 394 | glMultMatrixd(currentProjectionMatrix); |
---|
| 395 | glMatrixMode(GL_MODELVIEW); |
---|
| 396 | DrawView(); |
---|
| 397 | GLint hits = glRenderMode(GL_RENDER); |
---|
| 398 | if (hits < 0) |
---|
[1274] | 399 | G4cout << "Too many hits. Zoom in to reduce overlaps." << G4endl; |
---|
[593] | 400 | else if (hits > 0) { |
---|
| 401 | //G4cout << hits << " hit(s)" << G4endl; |
---|
| 402 | GLuint* p = selectBuffer; |
---|
| 403 | for (GLint i = 0; i < hits; ++i) { |
---|
| 404 | GLuint nnames = *p++; |
---|
[1274] | 405 | p++; //OR GLuint zmin = *p++; |
---|
| 406 | p++; //OR GLuint zmax = *p++; |
---|
[593] | 407 | //G4cout << "Hit " << i << ": " << nnames << " names" |
---|
| 408 | // << "\nzmin: " << zmin << ", zmax: " << zmax << G4endl; |
---|
| 409 | for (GLuint j = 0; j < nnames; ++j) { |
---|
| 410 | GLuint name = *p++; |
---|
| 411 | //G4cout << "Name " << j << ": PickName: " << name << G4endl; |
---|
| 412 | std::map<GLuint, G4AttHolder*>::iterator iter = |
---|
| 413 | fOpenGLSceneHandler.fPickMap.find(name); |
---|
| 414 | if (iter != fOpenGLSceneHandler.fPickMap.end()) { |
---|
| 415 | G4AttHolder* attHolder = iter->second; |
---|
| 416 | if(attHolder && attHolder->GetAttDefs().size()) { |
---|
| 417 | for (size_t i = 0; i < attHolder->GetAttDefs().size(); ++i) { |
---|
| 418 | G4cout << G4AttCheck(attHolder->GetAttValues()[i], |
---|
| 419 | attHolder->GetAttDefs()[i]); |
---|
| 420 | } |
---|
| 421 | } |
---|
| 422 | } |
---|
| 423 | } |
---|
| 424 | G4cout << G4endl; |
---|
| 425 | } |
---|
| 426 | } |
---|
| 427 | glMatrixMode(GL_PROJECTION); |
---|
| 428 | glPopMatrix(); |
---|
| 429 | glMatrixMode(GL_MODELVIEW); |
---|
| 430 | } |
---|
| 431 | |
---|
| 432 | |
---|
[754] | 433 | |
---|
[593] | 434 | |
---|
[914] | 435 | GLubyte* G4OpenGLViewer::grabPixels (int inColor, unsigned int width, unsigned int height) { |
---|
| 436 | |
---|
| 437 | GLubyte* buffer; |
---|
| 438 | GLint swapbytes, lsbfirst, rowlength; |
---|
| 439 | GLint skiprows, skippixels, alignment; |
---|
| 440 | GLenum format; |
---|
| 441 | int size; |
---|
| 442 | |
---|
| 443 | if (inColor) { |
---|
| 444 | format = GL_RGB; |
---|
| 445 | size = width*height*3; |
---|
| 446 | } else { |
---|
| 447 | format = GL_LUMINANCE; |
---|
| 448 | size = width*height*1; |
---|
| 449 | } |
---|
| 450 | |
---|
| 451 | buffer = new GLubyte[size]; |
---|
| 452 | if (buffer == NULL) |
---|
| 453 | return NULL; |
---|
| 454 | |
---|
| 455 | glGetIntegerv (GL_UNPACK_SWAP_BYTES, &swapbytes); |
---|
| 456 | glGetIntegerv (GL_UNPACK_LSB_FIRST, &lsbfirst); |
---|
| 457 | glGetIntegerv (GL_UNPACK_ROW_LENGTH, &rowlength); |
---|
| 458 | |
---|
| 459 | glGetIntegerv (GL_UNPACK_SKIP_ROWS, &skiprows); |
---|
| 460 | glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &skippixels); |
---|
| 461 | glGetIntegerv (GL_UNPACK_ALIGNMENT, &alignment); |
---|
| 462 | |
---|
| 463 | glPixelStorei (GL_UNPACK_SWAP_BYTES, GL_FALSE); |
---|
| 464 | glPixelStorei (GL_UNPACK_LSB_FIRST, GL_FALSE); |
---|
| 465 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
---|
| 466 | |
---|
| 467 | glPixelStorei (GL_UNPACK_SKIP_ROWS, 0); |
---|
| 468 | glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0); |
---|
| 469 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
---|
| 470 | |
---|
[980] | 471 | glReadBuffer(GL_FRONT); |
---|
[914] | 472 | glReadPixels (0, 0, (GLsizei)width, (GLsizei)height, format, GL_UNSIGNED_BYTE, (GLvoid*) buffer); |
---|
| 473 | |
---|
| 474 | glPixelStorei (GL_UNPACK_SWAP_BYTES, swapbytes); |
---|
| 475 | glPixelStorei (GL_UNPACK_LSB_FIRST, lsbfirst); |
---|
| 476 | glPixelStorei (GL_UNPACK_ROW_LENGTH, rowlength); |
---|
| 477 | |
---|
| 478 | glPixelStorei (GL_UNPACK_SKIP_ROWS, skiprows); |
---|
| 479 | glPixelStorei (GL_UNPACK_SKIP_PIXELS, skippixels); |
---|
| 480 | glPixelStorei (GL_UNPACK_ALIGNMENT, alignment); |
---|
| 481 | |
---|
| 482 | return buffer; |
---|
| 483 | } |
---|
| 484 | |
---|
[941] | 485 | void G4OpenGLViewer::printEPS() { |
---|
| 486 | bool res; |
---|
[942] | 487 | #ifdef G4DEBUG_VIS_OGL |
---|
[1095] | 488 | printf("G4OpenGLViewer::printEPS file:%s Vec:%d Name:%s\n",getRealPrintFilename().c_str(),fVectoredPs,GetName().c_str()); |
---|
[942] | 489 | #endif |
---|
[1133] | 490 | |
---|
| 491 | // Change the LC_NUMERIC value in order to have "." separtor and not "," |
---|
| 492 | // This case is only useful for French, Canadien... |
---|
[1274] | 493 | char* oldLocale = (char*)(malloc(strlen(setlocale(LC_NUMERIC,NULL))+1)); |
---|
| 494 | if(oldLocale!=NULL) strcpy(oldLocale,setlocale(LC_NUMERIC,NULL)); |
---|
[1133] | 495 | setlocale(LC_NUMERIC,"C"); |
---|
| 496 | |
---|
[941] | 497 | if (fVectoredPs) { |
---|
| 498 | res = printVectoredEPS(); |
---|
| 499 | } else { |
---|
[1008] | 500 | res = printNonVectoredEPS(); |
---|
[941] | 501 | } |
---|
[1133] | 502 | |
---|
| 503 | // restore the local |
---|
| 504 | if (oldLocale) { |
---|
| 505 | setlocale(LC_NUMERIC,oldLocale); |
---|
| 506 | free(oldLocale); |
---|
| 507 | } |
---|
| 508 | |
---|
[941] | 509 | if (res == false) { |
---|
[1041] | 510 | G4cerr << "Error while saving file... "<<getRealPrintFilename().c_str()<< G4endl; |
---|
[941] | 511 | } else { |
---|
[1042] | 512 | G4cout << "File "<<getRealPrintFilename().c_str()<<" has been saved " << G4endl; |
---|
[941] | 513 | } |
---|
[1041] | 514 | |
---|
| 515 | // increment index if necessary |
---|
| 516 | if ( fPrintFilenameIndex != -1) { |
---|
| 517 | fPrintFilenameIndex++; |
---|
| 518 | } |
---|
| 519 | |
---|
[1242] | 520 | #ifdef G4DEBUG_VIS_OGL |
---|
| 521 | printf("G4OpenGLViewer::printEPS END\n"); |
---|
| 522 | #endif |
---|
[941] | 523 | } |
---|
[914] | 524 | |
---|
[941] | 525 | bool G4OpenGLViewer::printVectoredEPS() { |
---|
| 526 | return printGl2PS(); |
---|
| 527 | } |
---|
| 528 | |
---|
| 529 | bool G4OpenGLViewer::printNonVectoredEPS () { |
---|
| 530 | |
---|
[1041] | 531 | int width = getRealPrintSizeX(); |
---|
| 532 | int height = getRealPrintSizeY(); |
---|
[941] | 533 | |
---|
[942] | 534 | #ifdef G4DEBUG_VIS_OGL |
---|
[1242] | 535 | printf("G4OpenGLViewer::printNonVectoredEPS file:%s Vec:%d X:%d Y:%d col:%d fWinX:%d fWinY:%d\n",getRealPrintFilename().c_str(),fVectoredPs,width,height,fPrintColour,fWinSize_x,fWinSize_y); |
---|
[942] | 536 | #endif |
---|
[914] | 537 | FILE* fp; |
---|
| 538 | GLubyte* pixels; |
---|
| 539 | GLubyte* curpix; |
---|
| 540 | int components, pos, i; |
---|
| 541 | |
---|
[941] | 542 | pixels = grabPixels (fPrintColour, width, height); |
---|
[914] | 543 | |
---|
[941] | 544 | if (pixels == NULL) { |
---|
| 545 | G4cerr << "Failed to get pixels from OpenGl viewport" << G4endl; |
---|
| 546 | return false; |
---|
| 547 | } |
---|
| 548 | if (fPrintColour) { |
---|
[914] | 549 | components = 3; |
---|
| 550 | } else { |
---|
| 551 | components = 1; |
---|
| 552 | } |
---|
[1041] | 553 | std::string name = getRealPrintFilename(); |
---|
| 554 | fp = fopen (name.c_str(), "w"); |
---|
[914] | 555 | if (fp == NULL) { |
---|
[1041] | 556 | G4cerr << "Can't open filename " << name.c_str() << G4endl; |
---|
[941] | 557 | return false; |
---|
[914] | 558 | } |
---|
| 559 | |
---|
| 560 | fprintf (fp, "%%!PS-Adobe-2.0 EPSF-1.2\n"); |
---|
[1041] | 561 | fprintf (fp, "%%%%Title: %s\n", name.c_str()); |
---|
[914] | 562 | fprintf (fp, "%%%%Creator: OpenGL pixmap render output\n"); |
---|
| 563 | fprintf (fp, "%%%%BoundingBox: 0 0 %d %d\n", width, height); |
---|
| 564 | fprintf (fp, "%%%%EndComments\n"); |
---|
| 565 | fprintf (fp, "gsave\n"); |
---|
| 566 | fprintf (fp, "/bwproc {\n"); |
---|
| 567 | fprintf (fp, " rgbproc\n"); |
---|
| 568 | fprintf (fp, " dup length 3 idiv string 0 3 0 \n"); |
---|
| 569 | fprintf (fp, " 5 -1 roll {\n"); |
---|
| 570 | fprintf (fp, " add 2 1 roll 1 sub dup 0 eq\n"); |
---|
| 571 | fprintf (fp, " { pop 3 idiv 3 -1 roll dup 4 -1 roll dup\n"); |
---|
| 572 | fprintf (fp, " 3 1 roll 5 -1 roll } put 1 add 3 0 \n"); |
---|
| 573 | fprintf (fp, " { 2 1 roll } ifelse\n"); |
---|
| 574 | fprintf (fp, " }forall\n"); |
---|
| 575 | fprintf (fp, " pop pop pop\n"); |
---|
| 576 | fprintf (fp, "} def\n"); |
---|
| 577 | fprintf (fp, "systemdict /colorimage known not {\n"); |
---|
| 578 | fprintf (fp, " /colorimage {\n"); |
---|
| 579 | fprintf (fp, " pop\n"); |
---|
| 580 | fprintf (fp, " pop\n"); |
---|
| 581 | fprintf (fp, " /rgbproc exch def\n"); |
---|
| 582 | fprintf (fp, " { bwproc } image\n"); |
---|
| 583 | fprintf (fp, " } def\n"); |
---|
| 584 | fprintf (fp, "} if\n"); |
---|
| 585 | fprintf (fp, "/picstr %d string def\n", width * components); |
---|
| 586 | fprintf (fp, "%d %d scale\n", width, height); |
---|
| 587 | fprintf (fp, "%d %d %d\n", width, height, 8); |
---|
| 588 | fprintf (fp, "[%d 0 0 %d 0 0]\n", width, height); |
---|
| 589 | fprintf (fp, "{currentfile picstr readhexstring pop}\n"); |
---|
| 590 | fprintf (fp, "false %d\n", components); |
---|
| 591 | fprintf (fp, "colorimage\n"); |
---|
| 592 | |
---|
| 593 | curpix = (GLubyte*) pixels; |
---|
| 594 | pos = 0; |
---|
| 595 | for (i = width*height*components; i>0; i--) { |
---|
| 596 | fprintf (fp, "%02hx ", *(curpix++)); |
---|
| 597 | if (++pos >= 32) { |
---|
| 598 | fprintf (fp, "\n"); |
---|
| 599 | pos = 0; |
---|
| 600 | } |
---|
| 601 | } |
---|
| 602 | if (pos) |
---|
| 603 | fprintf (fp, "\n"); |
---|
| 604 | |
---|
| 605 | fprintf (fp, "grestore\n"); |
---|
| 606 | fprintf (fp, "showpage\n"); |
---|
| 607 | delete pixels; |
---|
| 608 | fclose (fp); |
---|
[941] | 609 | |
---|
| 610 | // Reset for next time (useful is size change) |
---|
[1041] | 611 | // fPrintSizeX = -1; |
---|
| 612 | // fPrintSizeY = -1; |
---|
[941] | 613 | |
---|
| 614 | return true; |
---|
[914] | 615 | } |
---|
| 616 | |
---|
[918] | 617 | |
---|
[941] | 618 | bool G4OpenGLViewer::printGl2PS() { |
---|
[918] | 619 | |
---|
[1041] | 620 | int width = getRealPrintSizeX(); |
---|
| 621 | int height = getRealPrintSizeY(); |
---|
[941] | 622 | |
---|
[938] | 623 | if (!fGL2PSAction) return false; |
---|
[929] | 624 | |
---|
[1041] | 625 | fGL2PSAction->setFileName(getRealPrintFilename().c_str()); |
---|
[938] | 626 | // try to resize |
---|
[1245] | 627 | int X = fWinSize_x; |
---|
| 628 | int Y = fWinSize_y; |
---|
[929] | 629 | |
---|
[1245] | 630 | fWinSize_x = width; |
---|
| 631 | fWinSize_y = height; |
---|
[1242] | 632 | // Laurent G. 16/03/10 : Not the good way to do. |
---|
| 633 | // We should draw in a new offscreen context instead of |
---|
| 634 | // resizing and drawing in current window... |
---|
| 635 | // This should be solve when we will do an offscreen method |
---|
| 636 | // to render OpenGL |
---|
| 637 | // See : |
---|
| 638 | // http://developer.apple.com/Mac/library/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_offscreen/opengl_offscreen.html |
---|
| 639 | // http://www.songho.ca/opengl/gl_fbo.html |
---|
| 640 | |
---|
[1039] | 641 | ResizeGLView(); |
---|
[921] | 642 | if (fGL2PSAction->enableFileWriting()) { |
---|
[945] | 643 | |
---|
[1242] | 644 | // Set the viewport |
---|
| 645 | // fGL2PSAction->setViewport(0, 0, getRealPrintSizeX(),getRealPrintSizeY()); |
---|
[948] | 646 | // By default, we choose the line width (trajectories...) |
---|
| 647 | fGL2PSAction->setLineWidth(1); |
---|
| 648 | // By default, we choose the point size (markers...) |
---|
[1242] | 649 | fGL2PSAction->setPointSize(2); |
---|
| 650 | |
---|
[931] | 651 | DrawView (); |
---|
[921] | 652 | fGL2PSAction->disableFileWriting(); |
---|
| 653 | } |
---|
[929] | 654 | |
---|
[1039] | 655 | fWinSize_x = X; |
---|
| 656 | fWinSize_y = Y; |
---|
| 657 | ResizeGLView(); |
---|
[1242] | 658 | DrawView (); |
---|
[929] | 659 | |
---|
[941] | 660 | // Reset for next time (useful is size change) |
---|
[1041] | 661 | // fPrintSizeX = 0; |
---|
| 662 | // fPrintSizeY = 0; |
---|
[941] | 663 | |
---|
[938] | 664 | return true; |
---|
[918] | 665 | } |
---|
| 666 | |
---|
[1039] | 667 | unsigned int G4OpenGLViewer::getWinWidth() { |
---|
| 668 | return fWinSize_x; |
---|
| 669 | } |
---|
| 670 | |
---|
| 671 | unsigned int G4OpenGLViewer::getWinHeight() { |
---|
| 672 | return fWinSize_y; |
---|
| 673 | } |
---|
| 674 | |
---|
| 675 | G4bool G4OpenGLViewer::sizeHasChanged() { |
---|
| 676 | return fSizeHasChanged; |
---|
| 677 | } |
---|
| 678 | |
---|
[1041] | 679 | G4int G4OpenGLViewer::getRealPrintSizeX() { |
---|
| 680 | if (fPrintSizeX == -1) { |
---|
| 681 | return fWinSize_x; |
---|
| 682 | } |
---|
| 683 | GLint dims[2]; |
---|
| 684 | glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); |
---|
[1233] | 685 | |
---|
| 686 | // L.Garnier 01-2010: Some problems with mac 10.6 |
---|
| 687 | if ((dims[0] !=0 ) && (dims[1] !=0)) { |
---|
| 688 | if (fPrintSizeX > dims[0]){ |
---|
| 689 | return dims[0]; |
---|
| 690 | } |
---|
[1041] | 691 | } |
---|
| 692 | if (fPrintSizeX < -1){ |
---|
| 693 | return 0; |
---|
| 694 | } |
---|
| 695 | return fPrintSizeX; |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | G4int G4OpenGLViewer::getRealPrintSizeY() { |
---|
| 699 | if (fPrintSizeY == -1) { |
---|
| 700 | return fWinSize_y; |
---|
| 701 | } |
---|
| 702 | GLint dims[2]; |
---|
| 703 | glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); |
---|
[1233] | 704 | |
---|
| 705 | // L.Garnier 01-2010: Some problems with mac 10.6 |
---|
| 706 | if ((dims[0] !=0 ) && (dims[1] !=0)) { |
---|
| 707 | if (fPrintSizeY > dims[1]){ |
---|
| 708 | return dims[1]; |
---|
| 709 | } |
---|
[1041] | 710 | } |
---|
| 711 | if (fPrintSizeY < -1){ |
---|
| 712 | return 0; |
---|
| 713 | } |
---|
| 714 | return fPrintSizeY; |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | void G4OpenGLViewer::setPrintSize(G4int X, G4int Y) { |
---|
| 718 | fPrintSizeX = X; |
---|
| 719 | fPrintSizeY = Y; |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | void G4OpenGLViewer::setPrintFilename(G4String name,G4bool inc) { |
---|
| 723 | if (name != "") { |
---|
| 724 | fPrintFilename = name; |
---|
| 725 | } else { |
---|
| 726 | fPrintFilename = "G4OpenGL"; // by default |
---|
| 727 | } |
---|
| 728 | if (inc) { |
---|
| 729 | fPrintFilenameIndex=0; |
---|
| 730 | } else { |
---|
| 731 | fPrintFilenameIndex=-1; |
---|
| 732 | } |
---|
| 733 | } |
---|
| 734 | |
---|
| 735 | std::string G4OpenGLViewer::getRealPrintFilename() { |
---|
[1042] | 736 | std::string temp = fPrintFilename; |
---|
[1041] | 737 | if (fPrintFilenameIndex != -1) { |
---|
[1042] | 738 | temp += std::string("_"); |
---|
| 739 | std::ostringstream os; |
---|
| 740 | os << fPrintFilenameIndex; |
---|
| 741 | std::string nb_str = os.str(); |
---|
| 742 | temp += nb_str; |
---|
[1041] | 743 | } |
---|
| 744 | temp += ".eps"; |
---|
| 745 | return temp; |
---|
| 746 | } |
---|
| 747 | |
---|
[712] | 748 | GLdouble G4OpenGLViewer::getSceneNearWidth() |
---|
| 749 | { |
---|
[1238] | 750 | if (!fSceneHandler.GetScene()) { |
---|
| 751 | return 0; |
---|
| 752 | } |
---|
[712] | 753 | const G4Point3D targetPoint |
---|
| 754 | = fSceneHandler.GetScene()->GetStandardTargetPoint() |
---|
| 755 | + fVP.GetCurrentTargetPoint (); |
---|
| 756 | G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius(); |
---|
| 757 | if(radius<=0.) radius = 1.; |
---|
| 758 | const G4double cameraDistance = fVP.GetCameraDistance (radius); |
---|
| 759 | const GLdouble pnear = fVP.GetNearDistance (cameraDistance, radius); |
---|
| 760 | return 2 * fVP.GetFrontHalfHeight (pnear, radius); |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | GLdouble G4OpenGLViewer::getSceneFarWidth() |
---|
| 764 | { |
---|
[1238] | 765 | if (!fSceneHandler.GetScene()) { |
---|
| 766 | return 0; |
---|
| 767 | } |
---|
[712] | 768 | const G4Point3D targetPoint |
---|
| 769 | = fSceneHandler.GetScene()->GetStandardTargetPoint() |
---|
| 770 | + fVP.GetCurrentTargetPoint (); |
---|
| 771 | G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius(); |
---|
| 772 | if(radius<=0.) radius = 1.; |
---|
| 773 | const G4double cameraDistance = fVP.GetCameraDistance (radius); |
---|
| 774 | const GLdouble pnear = fVP.GetNearDistance (cameraDistance, radius); |
---|
| 775 | const GLdouble pfar = fVP.GetFarDistance (cameraDistance, pnear, radius); |
---|
| 776 | return 2 * fVP.GetFrontHalfHeight (pfar, radius); |
---|
| 777 | } |
---|
| 778 | |
---|
| 779 | |
---|
| 780 | GLdouble G4OpenGLViewer::getSceneDepth() |
---|
| 781 | { |
---|
[1238] | 782 | if (!fSceneHandler.GetScene()) { |
---|
| 783 | return 0; |
---|
| 784 | } |
---|
[712] | 785 | const G4Point3D targetPoint |
---|
| 786 | = fSceneHandler.GetScene()->GetStandardTargetPoint() |
---|
| 787 | + fVP.GetCurrentTargetPoint (); |
---|
| 788 | G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius(); |
---|
| 789 | if(radius<=0.) radius = 1.; |
---|
| 790 | const G4double cameraDistance = fVP.GetCameraDistance (radius); |
---|
| 791 | const GLdouble pnear = fVP.GetNearDistance (cameraDistance, radius); |
---|
| 792 | return fVP.GetFarDistance (cameraDistance, pnear, radius)- pnear; |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | |
---|
[593] | 796 | |
---|
[798] | 797 | void G4OpenGLViewer::rotateScene(G4double dx, G4double dy,G4double deltaRotation) |
---|
| 798 | { |
---|
[1137] | 799 | if (!fSceneHandler.GetScene()) { |
---|
| 800 | return; |
---|
| 801 | } |
---|
[798] | 802 | |
---|
| 803 | G4Vector3D vp; |
---|
| 804 | G4Vector3D up; |
---|
| 805 | |
---|
| 806 | G4Vector3D xprime; |
---|
| 807 | G4Vector3D yprime; |
---|
| 808 | G4Vector3D zprime; |
---|
| 809 | |
---|
| 810 | G4double delta_alpha; |
---|
| 811 | G4double delta_theta; |
---|
| 812 | |
---|
| 813 | G4Vector3D new_vp; |
---|
| 814 | G4Vector3D new_up; |
---|
| 815 | |
---|
| 816 | G4double cosalpha; |
---|
| 817 | G4double sinalpha; |
---|
| 818 | |
---|
| 819 | G4Vector3D a1; |
---|
| 820 | G4Vector3D a2; |
---|
| 821 | G4Vector3D delta; |
---|
| 822 | G4Vector3D viewPoint; |
---|
| 823 | |
---|
| 824 | |
---|
| 825 | //phi spin stuff here |
---|
| 826 | |
---|
| 827 | vp = fVP.GetViewpointDirection ().unit (); |
---|
| 828 | up = fVP.GetUpVector ().unit (); |
---|
| 829 | |
---|
| 830 | yprime = (up.cross(vp)).unit(); |
---|
| 831 | zprime = (vp.cross(yprime)).unit(); |
---|
| 832 | |
---|
| 833 | if (fVP.GetLightsMoveWithCamera()) { |
---|
| 834 | delta_alpha = dy * deltaRotation; |
---|
| 835 | delta_theta = -dx * deltaRotation; |
---|
| 836 | } else { |
---|
| 837 | delta_alpha = -dy * deltaRotation; |
---|
| 838 | delta_theta = dx * deltaRotation; |
---|
| 839 | } |
---|
| 840 | |
---|
| 841 | delta_alpha *= deg; |
---|
| 842 | delta_theta *= deg; |
---|
| 843 | |
---|
| 844 | new_vp = std::cos(delta_alpha) * vp + std::sin(delta_alpha) * zprime; |
---|
| 845 | |
---|
| 846 | // to avoid z rotation flipping |
---|
| 847 | // to allow more than 360° rotation |
---|
[847] | 848 | |
---|
[801] | 849 | const G4Point3D targetPoint |
---|
| 850 | = fSceneHandler.GetScene()->GetStandardTargetPoint() |
---|
| 851 | + fVP.GetCurrentTargetPoint (); |
---|
| 852 | G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius(); |
---|
| 853 | if(radius<=0.) radius = 1.; |
---|
| 854 | const G4double cameraDistance = fVP.GetCameraDistance (radius); |
---|
| 855 | const G4Point3D cameraPosition = |
---|
| 856 | targetPoint + cameraDistance * fVP.GetViewpointDirection().unit(); |
---|
| 857 | |
---|
[798] | 858 | if (fVP.GetLightsMoveWithCamera()) { |
---|
| 859 | new_up = (new_vp.cross(yprime)).unit(); |
---|
| 860 | if (new_vp.z()*vp.z() <0) { |
---|
| 861 | new_up.set(new_up.x(),-new_up.y(),new_up.z()); |
---|
| 862 | } |
---|
| 863 | } else { |
---|
| 864 | new_up = up; |
---|
| 865 | if (new_vp.z()*vp.z() <0) { |
---|
| 866 | new_up.set(new_up.x(),-new_up.y(),new_up.z()); |
---|
| 867 | } |
---|
| 868 | } |
---|
| 869 | fVP.SetUpVector(new_up); |
---|
| 870 | //////////////// |
---|
| 871 | // Rotates by fixed azimuthal angle delta_theta. |
---|
| 872 | |
---|
| 873 | cosalpha = new_up.dot (new_vp.unit()); |
---|
| 874 | sinalpha = std::sqrt (1. - std::pow (cosalpha, 2)); |
---|
| 875 | yprime = (new_up.cross (new_vp.unit())).unit (); |
---|
| 876 | xprime = yprime.cross (new_up); |
---|
| 877 | // Projection of vp on plane perpendicular to up... |
---|
| 878 | a1 = sinalpha * xprime; |
---|
| 879 | // Required new projection... |
---|
| 880 | a2 = sinalpha * (std::cos (delta_theta) * xprime + std::sin (delta_theta) * yprime); |
---|
| 881 | // Required Increment vector... |
---|
| 882 | delta = a2 - a1; |
---|
| 883 | // So new viewpoint is... |
---|
| 884 | viewPoint = new_vp.unit() + delta; |
---|
| 885 | |
---|
| 886 | fVP.SetViewAndLights (viewPoint); |
---|
| 887 | } |
---|
| 888 | |
---|
[529] | 889 | #endif |
---|