[834] | 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 | // |
---|
| 27 | // $Id: G4XXXSGSceneHandler.cc,v 1.6 2006/11/05 20:41:36 allison Exp $ |
---|
[1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
---|
[834] | 29 | // |
---|
| 30 | // |
---|
| 31 | // John Allison 10th March 2006 |
---|
| 32 | // A template for a sophisticated graphics driver with a scene graph. |
---|
| 33 | //?? Lines beginning like this require specialisation for your driver. |
---|
| 34 | |
---|
| 35 | #ifdef G4VIS_BUILD_XXXSG_DRIVER |
---|
| 36 | |
---|
| 37 | #include "G4XXXSGSceneHandler.hh" |
---|
| 38 | |
---|
| 39 | #include "G4XXXSGViewer.hh" |
---|
| 40 | #include "G4PhysicalVolumeModel.hh" |
---|
| 41 | #include "G4VPhysicalVolume.hh" |
---|
| 42 | #include "G4LogicalVolume.hh" |
---|
| 43 | #include "G4Box.hh" |
---|
| 44 | #include "G4Polyline.hh" |
---|
| 45 | #include "G4Text.hh" |
---|
| 46 | #include "G4Circle.hh" |
---|
| 47 | #include "G4Square.hh" |
---|
| 48 | #include "G4Polyhedron.hh" |
---|
| 49 | #include "G4UnitsTable.hh" |
---|
| 50 | |
---|
| 51 | #include <sstream> |
---|
| 52 | |
---|
| 53 | G4int G4XXXSGSceneHandler::fSceneIdCount = 0; |
---|
| 54 | // Counter for XXX scene handlers. |
---|
| 55 | |
---|
| 56 | G4XXXSGSceneHandler::G4XXXSGSceneHandler(G4VGraphicsSystem& system, |
---|
| 57 | const G4String& name): |
---|
| 58 | G4VSceneHandler(system, fSceneIdCount++, name) |
---|
| 59 | { |
---|
| 60 | fRoot = fSceneGraph.setRoot("\nroot\n"); |
---|
| 61 | fPermanentsRoot = fRoot.push_back("\npermanentsRoot\n"); |
---|
| 62 | fTransientsRoot = fRoot.push_back("\ntransientsRoot\n"); |
---|
| 63 | } |
---|
| 64 | |
---|
| 65 | G4XXXSGSceneHandler::~G4XXXSGSceneHandler() {} |
---|
| 66 | |
---|
| 67 | #ifdef G4XXXSGDEBUG |
---|
| 68 | // Useful function... |
---|
| 69 | void G4XXXSGSceneHandler::PrintThings() { |
---|
| 70 | G4cout << |
---|
| 71 | " with transformation " |
---|
| 72 | << (void*)fpObjectTransformation; |
---|
| 73 | if (fpModel) { |
---|
| 74 | G4cout << " from " << fpModel->GetCurrentDescription() |
---|
| 75 | << " (tag " << fpModel->GetCurrentTag() |
---|
| 76 | << ')'; |
---|
| 77 | } else { |
---|
| 78 | G4cout << "(not from a model)"; |
---|
| 79 | } |
---|
| 80 | G4PhysicalVolumeModel* pPVModel = |
---|
| 81 | dynamic_cast<G4PhysicalVolumeModel*>(fpModel); |
---|
| 82 | if (pPVModel) { |
---|
| 83 | G4cout << |
---|
| 84 | "\n current physical volume: " |
---|
| 85 | << pPVModel->GetCurrentPV()->GetName() << |
---|
| 86 | "\n current logical volume: " |
---|
| 87 | << pPVModel->GetCurrentLV()->GetName() << |
---|
| 88 | "\n current depth of geometry tree: " |
---|
| 89 | << pPVModel->GetCurrentDepth(); |
---|
| 90 | } |
---|
| 91 | G4cout << G4endl; |
---|
| 92 | } |
---|
| 93 | #endif |
---|
| 94 | |
---|
| 95 | void G4XXXSGSceneHandler::CreateCurrentItem(const G4String& header) { |
---|
| 96 | // Utility for PreAddSolid and BeginPrimitives. |
---|
| 97 | |
---|
| 98 | G4PhysicalVolumeModel* pPVModel = |
---|
| 99 | dynamic_cast<G4PhysicalVolumeModel*>(fpModel); |
---|
| 100 | |
---|
| 101 | if (pPVModel) { |
---|
| 102 | |
---|
| 103 | // This call comes from a G4PhysicalVolumeModel. drawnPVPath is |
---|
| 104 | // the path of the current drawn (non-culled) volume in terms of |
---|
| 105 | // drawn (non-culled) ancesters. Each node is identified by a |
---|
| 106 | // PVNodeID object, which is a physical volume and copy number. It |
---|
| 107 | // is a vector of PVNodeIDs corresponding to the geometry hierarchy |
---|
| 108 | // actually selected, i.e., not culled. |
---|
| 109 | typedef G4PhysicalVolumeModel::G4PhysicalVolumeNodeID PVNodeID; |
---|
| 110 | typedef std::vector<PVNodeID> PVPath; |
---|
| 111 | const PVPath& drawnPVPath = pPVModel->GetDrawnPVPath(); |
---|
| 112 | //G4int currentDepth = pPVModel->GetCurrentDepth(); |
---|
| 113 | //G4VPhysicalVolume* pCurrentPV = pPVModel->GetCurrentPV(); |
---|
| 114 | G4LogicalVolume* pCurrentLV = pPVModel->GetCurrentLV(); |
---|
| 115 | //G4Material* pCurrentMaterial = pPVModel->GetCurrentMaterial(); |
---|
| 116 | // Note: pCurrentMaterial may be zero (parallel world). |
---|
| 117 | |
---|
| 118 | // The simplest algorithm, used by the Open Inventor Driver |
---|
| 119 | // developers, is to rely on the fact the G4PhysicalVolumeModel |
---|
| 120 | // traverses the geometry hierarchy in an orderly manner. The last |
---|
| 121 | // mother, if any, will be the node to which the volume should be |
---|
| 122 | // added. So it is enough to keep a map of scene graph nodes keyed |
---|
| 123 | // on the volume path ID. Actually, it is enough to use the logical |
---|
| 124 | // volume as the key. (An alternative would be to keep the PVNodeID |
---|
| 125 | // in the tree and match the PVPath from the root down.) |
---|
| 126 | |
---|
| 127 | // Find mother. ri points to drawn mother, if any. |
---|
| 128 | PVPath::const_reverse_iterator ri = ++drawnPVPath.rbegin(); |
---|
| 129 | if (ri != drawnPVPath.rend()) { |
---|
| 130 | // This volume has a mother. |
---|
| 131 | G4LogicalVolume* drawnMotherLV = |
---|
| 132 | ri->GetPhysicalVolume()->GetLogicalVolume(); |
---|
| 133 | LVMapIterator mother = fLVMap.find(drawnMotherLV); |
---|
| 134 | if (mother != fLVMap.end()) { |
---|
| 135 | // This adds a child in Troy's tree... |
---|
| 136 | fCurrentItem = mother->second.push_back(header); |
---|
| 137 | } else { |
---|
| 138 | // Mother not previously encountered. Shouldn't happen, since |
---|
| 139 | // G4PhysicalVolumeModel sends volumes as it encounters them, |
---|
| 140 | // i.e., mothers before daughters, in its descent of the |
---|
| 141 | // geometry tree. Error! |
---|
| 142 | G4cout << "ERROR: G4XXXSGSceneHandler::PreAddSolid: Mother " |
---|
| 143 | << ri->GetPhysicalVolume()->GetName() |
---|
| 144 | << ':' << ri->GetCopyNo() |
---|
| 145 | << " not previously encountered." |
---|
| 146 | "\nShouldn't happen! Please report to visualization coordinator." |
---|
| 147 | << G4endl; |
---|
| 148 | // Continue anyway. Add to root of scene graph tree... |
---|
| 149 | fCurrentItem = fPermanentsRoot.push_back(header); |
---|
| 150 | } |
---|
| 151 | } else { |
---|
| 152 | // This volume has no mother. Must be a top level un-culled |
---|
| 153 | // volume. Add to root of scene graph tree... |
---|
| 154 | fCurrentItem = fPermanentsRoot.push_back(header); |
---|
| 155 | } |
---|
| 156 | |
---|
| 157 | std::ostringstream oss; |
---|
| 158 | oss << "Path of drawn PVs: "; |
---|
| 159 | for (PVPath::const_iterator i = drawnPVPath.begin(); |
---|
| 160 | i != drawnPVPath.end(); ++i) { |
---|
| 161 | oss << '/' << i->GetPhysicalVolume()->GetName() |
---|
| 162 | << ':' << i->GetCopyNo(); |
---|
| 163 | } |
---|
| 164 | oss << std::endl; |
---|
| 165 | *fCurrentItem += oss.str(); |
---|
| 166 | |
---|
| 167 | // Store for future searches. Overwrites previous entries for this |
---|
| 168 | // LV, so entry is always the *last* LV. |
---|
| 169 | fLVMap[pCurrentLV] = fCurrentItem; |
---|
| 170 | |
---|
| 171 | } else { // Not from a G4PhysicalVolumeModel. |
---|
| 172 | |
---|
| 173 | // Create a place for current solid in root... |
---|
| 174 | if (fReadyForTransients) { |
---|
| 175 | fCurrentItem = fTransientsRoot.push_back(header); |
---|
| 176 | } else { |
---|
| 177 | fCurrentItem = fPermanentsRoot.push_back(header); |
---|
| 178 | } |
---|
| 179 | } |
---|
| 180 | } |
---|
| 181 | |
---|
| 182 | void G4XXXSGSceneHandler::PreAddSolid |
---|
| 183 | (const G4Transform3D& objectTransformation, |
---|
| 184 | const G4VisAttributes& visAttribs) |
---|
| 185 | { |
---|
| 186 | G4VSceneHandler::PreAddSolid(objectTransformation, visAttribs); |
---|
| 187 | CreateCurrentItem(G4String("\nPreAddSolid:\n")); |
---|
| 188 | } |
---|
| 189 | |
---|
| 190 | void G4XXXSGSceneHandler::PostAddSolid() |
---|
| 191 | { |
---|
| 192 | *fCurrentItem += "EndSolid\n"; |
---|
| 193 | G4VSceneHandler::PostAddSolid(); |
---|
| 194 | } |
---|
| 195 | |
---|
| 196 | void G4XXXSGSceneHandler::BeginPrimitives |
---|
| 197 | (const G4Transform3D& objectTransformation) |
---|
| 198 | { |
---|
| 199 | G4VSceneHandler::BeginPrimitives(objectTransformation); |
---|
| 200 | |
---|
| 201 | // If thread of control has already passed through PreAddSolid, |
---|
| 202 | // avoid opening a graphical data base component again. |
---|
| 203 | if (!fProcessingSolid) { |
---|
| 204 | CreateCurrentItem(G4String("\nBeginPrimitives:\n")); |
---|
| 205 | } |
---|
| 206 | } |
---|
| 207 | |
---|
| 208 | void G4XXXSGSceneHandler::EndPrimitives () |
---|
| 209 | { |
---|
| 210 | if (!fProcessingSolid) { // Already done if so. |
---|
| 211 | *fCurrentItem += "EndPrimitives\n"; |
---|
| 212 | } |
---|
| 213 | G4VSceneHandler::EndPrimitives (); |
---|
| 214 | } |
---|
| 215 | |
---|
| 216 | // Note: This function overrides G4VSceneHandler::AddSolid(const |
---|
| 217 | // G4Box&). You may not want to do this, but this is how it's done if |
---|
| 218 | // you do. Certain other specific solids may be treated this way - |
---|
| 219 | // see G4VSceneHandler.hh. The simplest possible driver would *not* |
---|
| 220 | // implement these polymorphic functions, with the effect that the |
---|
| 221 | // default versions in G4VSceneHandler are used, which simply call |
---|
| 222 | // G4VSceneHandler::RequestPrimitives to turn the solid into a |
---|
| 223 | // G4Polyhedron usually. |
---|
| 224 | // Don't forget, solids can be transients too (e.g., representing a hit). |
---|
| 225 | void G4XXXSGSceneHandler::AddSolid(const G4Box& box) { |
---|
| 226 | #ifdef G4XXXSGDEBUG |
---|
| 227 | G4cout << |
---|
| 228 | "G4XXXSGSceneHandler::AddSolid(const G4Box& box) called for " |
---|
| 229 | << box.GetName() |
---|
| 230 | << G4endl; |
---|
| 231 | #endif |
---|
| 232 | //?? Process your box... |
---|
| 233 | std::ostringstream oss; |
---|
| 234 | oss << "G4Box(" << |
---|
| 235 | G4String |
---|
| 236 | (G4BestUnit |
---|
| 237 | (G4ThreeVector |
---|
| 238 | (box.GetXHalfLength(), box.GetYHalfLength(), box.GetZHalfLength()), |
---|
| 239 | "Length")).strip() << ')' << std::endl; |
---|
| 240 | *fCurrentItem += oss.str(); |
---|
| 241 | } |
---|
| 242 | |
---|
| 243 | void G4XXXSGSceneHandler::AddPrimitive(const G4Polyline& polyline) { |
---|
| 244 | #ifdef G4XXXSGDEBUG |
---|
| 245 | G4cout << |
---|
| 246 | "G4XXXSGSceneHandler::AddPrimitive(const G4Polyline& polyline) called.\n" |
---|
| 247 | << polyline |
---|
| 248 | << G4endl; |
---|
| 249 | #endif |
---|
| 250 | // Get vis attributes - pick up defaults if none. |
---|
| 251 | //const G4VisAttributes* pVA = |
---|
| 252 | // fpViewer -> GetApplicableVisAttributes (polyline.GetVisAttributes ()); |
---|
| 253 | //?? Process polyline. |
---|
| 254 | std::ostringstream oss; |
---|
| 255 | oss << polyline << std::endl; |
---|
| 256 | *fCurrentItem += oss.str(); |
---|
| 257 | } |
---|
| 258 | |
---|
| 259 | void G4XXXSGSceneHandler::AddPrimitive(const G4Text& text) { |
---|
| 260 | #ifdef G4XXXSGDEBUG |
---|
| 261 | G4cout << |
---|
| 262 | "G4XXXSGSceneHandler::AddPrimitive(const G4Text& text) called.\n" |
---|
| 263 | << text |
---|
| 264 | << G4endl; |
---|
| 265 | #endif |
---|
| 266 | // Get text colour - special method since default text colour is |
---|
| 267 | // determined by the default text vis attributes, which may be |
---|
| 268 | // specified independent of default vis attributes of other types of |
---|
| 269 | // visible objects. |
---|
| 270 | //const G4Colour& c = GetTextColour (text); // Picks up default if none. |
---|
| 271 | //?? Process text. |
---|
| 272 | std::ostringstream oss; |
---|
| 273 | oss << text << std::endl; |
---|
| 274 | *fCurrentItem += oss.str(); |
---|
| 275 | } |
---|
| 276 | |
---|
| 277 | void G4XXXSGSceneHandler::AddPrimitive(const G4Circle& circle) { |
---|
| 278 | #ifdef G4XXXSGDEBUG |
---|
| 279 | G4cout << |
---|
| 280 | "G4XXXSGSceneHandler::AddPrimitive(const G4Circle& circle) called.\n" |
---|
| 281 | << circle |
---|
| 282 | << G4endl; |
---|
| 283 | MarkerSizeType sizeType; |
---|
| 284 | G4double size = GetMarkerSize (circle, sizeType); |
---|
| 285 | switch (sizeType) { |
---|
| 286 | default: |
---|
| 287 | case screen: |
---|
| 288 | // Draw in screen coordinates. |
---|
| 289 | G4cout << "screen"; |
---|
| 290 | break; |
---|
| 291 | case world: |
---|
| 292 | // Draw in world coordinates. |
---|
| 293 | G4cout << "world"; |
---|
| 294 | break; |
---|
| 295 | } |
---|
| 296 | G4cout << " size: " << size << G4endl; |
---|
| 297 | #endif |
---|
| 298 | // Get vis attributes - pick up defaults if none. |
---|
| 299 | //const G4VisAttributes* pVA = |
---|
| 300 | // fpViewer -> GetApplicableVisAttributes (circle.GetVisAttributes ()); |
---|
| 301 | //?? Process circle. |
---|
| 302 | std::ostringstream oss; |
---|
| 303 | oss << circle << std::endl; |
---|
| 304 | *fCurrentItem += oss.str(); |
---|
| 305 | } |
---|
| 306 | |
---|
| 307 | void G4XXXSGSceneHandler::AddPrimitive(const G4Square& square) { |
---|
| 308 | #ifdef G4XXXSGDEBUG |
---|
| 309 | G4cout << |
---|
| 310 | "G4XXXSGSceneHandler::AddPrimitive(const G4Square& square) called.\n" |
---|
| 311 | << square |
---|
| 312 | << G4endl; |
---|
| 313 | MarkerSizeType sizeType; |
---|
| 314 | G4double size = GetMarkerSize (square, sizeType); |
---|
| 315 | switch (sizeType) { |
---|
| 316 | default: |
---|
| 317 | case screen: |
---|
| 318 | // Draw in screen coordinates. |
---|
| 319 | G4cout << "screen"; |
---|
| 320 | break; |
---|
| 321 | case world: |
---|
| 322 | // Draw in world coordinates. |
---|
| 323 | G4cout << "world"; |
---|
| 324 | break; |
---|
| 325 | } |
---|
| 326 | G4cout << " size: " << size << G4endl; |
---|
| 327 | #endif |
---|
| 328 | // Get vis attributes - pick up defaults if none. |
---|
| 329 | //const G4VisAttributes* pVA = |
---|
| 330 | // fpViewer -> GetApplicableVisAttributes (square.GetVisAttributes ()); |
---|
| 331 | //?? Process square. |
---|
| 332 | std::ostringstream oss; |
---|
| 333 | oss << square << std::endl; |
---|
| 334 | *fCurrentItem += oss.str(); |
---|
| 335 | } |
---|
| 336 | |
---|
| 337 | void G4XXXSGSceneHandler::AddPrimitive(const G4Polyhedron& polyhedron) { |
---|
| 338 | #ifdef G4XXXSGDEBUG |
---|
| 339 | G4cout << |
---|
| 340 | "G4XXXSGSceneHandler::AddPrimitive(const G4Polyhedron& polyhedron) called.\n" |
---|
| 341 | << polyhedron |
---|
| 342 | << G4endl; |
---|
| 343 | #endif |
---|
| 344 | //?? Process polyhedron. |
---|
| 345 | std::ostringstream oss; |
---|
| 346 | oss << polyhedron; |
---|
| 347 | *fCurrentItem += oss.str(); |
---|
| 348 | |
---|
| 349 | //?? Or... here are some ideas for decomposing into polygons... |
---|
| 350 | //Assume all facets are convex quadrilaterals. |
---|
| 351 | //Draw each G4Facet individually |
---|
| 352 | |
---|
| 353 | //Get colour, etc.. |
---|
| 354 | if (polyhedron.GetNoFacets() == 0) return; |
---|
| 355 | |
---|
| 356 | // Get vis attributes - pick up defaults if none. |
---|
| 357 | const G4VisAttributes* pVA = |
---|
| 358 | fpViewer -> GetApplicableVisAttributes (polyhedron.GetVisAttributes ()); |
---|
| 359 | |
---|
| 360 | // Get view parameters that the user can force through the vis |
---|
| 361 | // attributes, thereby over-riding the current view parameter. |
---|
| 362 | G4ViewParameters::DrawingStyle drawing_style = GetDrawingStyle (pVA); |
---|
| 363 | //G4bool isAuxEdgeVisible = GetAuxEdgeVisible (pVA); |
---|
| 364 | |
---|
| 365 | //Get colour, etc.. |
---|
| 366 | //const G4Colour& c = pVA -> GetColour (); |
---|
| 367 | |
---|
| 368 | // Initial action depending on drawing style. |
---|
| 369 | switch (drawing_style) { |
---|
| 370 | case (G4ViewParameters::hsr): |
---|
| 371 | { |
---|
| 372 | break; |
---|
| 373 | } |
---|
| 374 | case (G4ViewParameters::hlr): |
---|
| 375 | { |
---|
| 376 | break; |
---|
| 377 | } |
---|
| 378 | case (G4ViewParameters::wireframe): |
---|
| 379 | { |
---|
| 380 | break; |
---|
| 381 | } |
---|
| 382 | default: |
---|
| 383 | { |
---|
| 384 | break; |
---|
| 385 | } |
---|
| 386 | } |
---|
| 387 | |
---|
| 388 | // Loop through all the facets... |
---|
| 389 | |
---|
| 390 | // Look at G4OpenGLSceneHandler::AddPrimitive(const G4Polyhedron&) |
---|
| 391 | // for an example of how to get facets out of a G4Polyhedron, |
---|
| 392 | // including how to cope with triangles if that's a problem. |
---|
| 393 | } |
---|
| 394 | |
---|
| 395 | void G4XXXSGSceneHandler::AddPrimitive(const G4NURBS& nurbs) { |
---|
| 396 | #ifdef G4XXXSGDEBUG |
---|
| 397 | G4cout << |
---|
| 398 | "G4XXXSGSceneHandler::AddPrimitive(const G4NURBS& nurbs) called." |
---|
| 399 | << G4endl; |
---|
| 400 | #endif |
---|
| 401 | //?? Don't bother implementing this. NURBS are not functional. |
---|
| 402 | } |
---|
| 403 | |
---|
| 404 | void G4XXXSGSceneHandler::ClearStore () { |
---|
| 405 | |
---|
| 406 | G4VSceneHandler::ClearStore (); // Sets need kernel visit, etc. |
---|
| 407 | |
---|
| 408 | fPermanentsRoot.clear(); |
---|
| 409 | fTransientsRoot.clear(); |
---|
| 410 | fLVMap.clear(); |
---|
| 411 | } |
---|
| 412 | |
---|
| 413 | void G4XXXSGSceneHandler::ClearTransientStore () { |
---|
| 414 | |
---|
| 415 | G4VSceneHandler::ClearTransientStore (); |
---|
| 416 | |
---|
| 417 | fTransientsRoot.clear(); |
---|
| 418 | } |
---|
| 419 | |
---|
| 420 | #endif |
---|