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00044 #include <OSGSplitGraphOp.h>
00045 #include <OSGDirectionalLight.h>
00046 #include <OSGSpotLight.h>
00047 #include <OSGLight.h>
00048 #include <OSGPointLight.h>
00049 #include <OSGSwitch.h>
00050 #include <OSGDistanceLOD.h>
00051 #include <OSGBillboard.h>
00052 #include <OSGMaterialGroup.h>
00053 #include <OSGComponentTransform.h>
00054 #include <OSGPrimitiveIterator.h>
00055 #include <OSGGeometry.h>
00056
00057 OSG_USING_NAMESPACE
00058
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00081 SplitGraphOp::SplitGraphOp(const char* name, UInt16 max_polygons):
00082 GraphOp(name), _max_polygons(max_polygons)
00083 {
00084 }
00085
00086 SplitGraphOp::~SplitGraphOp(void)
00087 {
00088 }
00089
00090 GraphOp* SplitGraphOp::create()
00091 {
00092 SplitGraphOp * inst = new SplitGraphOp();
00093 return inst;
00094 }
00095
00096 bool SplitGraphOp::traverse(NodePtr& root)
00097 {
00098
00099 if (isLeaf(root))
00100 {
00101 NodePtr n = makeNodeFor(root->getCore());
00102
00103 beginEditCP(root);
00104 root->setCore(Group::create());
00105 root->addChild(n);
00106 endEditCP(root);
00107 }
00108
00109 return GraphOp::traverse(root);
00110 }
00111
00112 void SplitGraphOp::setParams(const std::string params)
00113 {
00114 ParamSet ps(params);
00115
00116 ps("max_polygons", _max_polygons);
00117
00118 std::string out = ps.getUnusedParams();
00119 if(out.length())
00120 {
00121 FWARNING(("SplitGraphOp doesn't have parameters '%s'.\n",
00122 out.c_str()));
00123 }
00124 }
00125
00126 std::string SplitGraphOp::usage(void)
00127 {
00128 return
00129 "Split: Split large geometries into smaller ones\n"
00130 "Params: name (type, default)\n"
00131 " max_polygons (UInt32, 1000): maximum number of polygons allowed per Geo\n";
00132 }
00133
00134 void SplitGraphOp::setMaxPolygons(UInt16 max_polygons)
00135 {
00136 _max_polygons = max_polygons;
00137 }
00138
00139
00140
00141
00142
00143
00144
00145
00146
00147
00148 Action::ResultE SplitGraphOp::traverseEnter(NodePtr& node)
00149 {
00150 if (isLeaf(node)) return Action::Skip;
00151
00152 SwitchPtr switch_ = SwitchPtr::dcast(node->getCore());
00153 if (switch_!=NullFC) return Action::Skip;
00154
00155 DistanceLODPtr dlod = DistanceLODPtr::dcast(node->getCore());
00156 if (dlod!=NullFC) return Action::Skip;
00157
00158 return Action::Continue;
00159 }
00160
00161 #define addPoints( INDEX , LENGTH ) \
00162 for (UInt32 k=0; k<LENGTH; k++) \
00163 { \
00164 int posInd=it.getPositionIndex(k+INDEX); \
00165 if (pni[geoIndex]) \
00166 { \
00167 if (pni[geoIndex][posInd]==-1) \
00168 { \
00169 pnts[geoIndex]->push_back(it.getPosition(k+INDEX)); \
00170 pni[geoIndex][posInd]=pnts[geoIndex]->size()-1; \
00171 } \
00172 } \
00173 int normInd=it.getNormalIndex(k+INDEX); \
00174 if (nni[geoIndex]) \
00175 { \
00176 if (nni[geoIndex][normInd]==-1) \
00177 { \
00178 normals[geoIndex]->push_back(it.getNormal(k+INDEX)); \
00179 nni[geoIndex][normInd]=normals[geoIndex]->size()-1; \
00180 } \
00181 } \
00182 int colInd=it.getColorIndex(k+INDEX); \
00183 if (cni[geoIndex]) \
00184 { \
00185 if (cni[geoIndex][colInd]==-1) \
00186 { \
00187 colors[geoIndex]->push_back(it.getColor(k+INDEX)); \
00188 cni[geoIndex][colInd]=colors[geoIndex]->size()-1; \
00189 } \
00190 } \
00191 int scolInd=it.getSecondaryColorIndex(k+INDEX); \
00192 if (sni[geoIndex]) \
00193 { \
00194 if (sni[geoIndex][scolInd]==-1) \
00195 { \
00196 scolors[geoIndex]->push_back(it.getSecondaryColor(k+INDEX));\
00197 sni[geoIndex][scolInd]=scolors[geoIndex]->size()-1; \
00198 } \
00199 } \
00200 int texInd=it.getTexCoordsIndex(k+INDEX); \
00201 if (tni[geoIndex]) \
00202 { \
00203 if (tni[geoIndex][texInd]==-1) \
00204 { \
00205 tex[geoIndex]->push_back(it.getTexCoords(k+INDEX)); \
00206 tni[geoIndex][texInd]=tex[geoIndex]->size()-1; \
00207 } \
00208 } \
00209 int tex1Ind=it.getTexCoordsIndex1(k+INDEX); \
00210 if (t1ni[geoIndex]) \
00211 { \
00212 if (t1ni[geoIndex][tex1Ind]==-1) \
00213 { \
00214 tex1[geoIndex]->push_back(it.getTexCoords1(k+INDEX)); \
00215 t1ni[geoIndex][tex1Ind]=tex1[geoIndex]->size()-1; \
00216 } \
00217 } \
00218 int tex2Ind=it.getTexCoordsIndex2(k+INDEX); \
00219 if (t2ni[geoIndex]) \
00220 { \
00221 if (t2ni[geoIndex][tex2Ind]==-1) \
00222 { \
00223 tex2[geoIndex]->push_back(it.getTexCoords2(k+INDEX)); \
00224 t2ni[geoIndex][tex2Ind]=tex2[geoIndex]->size()-1; \
00225 } \
00226 } \
00227 int tex3Ind=it.getTexCoordsIndex3(k+INDEX); \
00228 if (t3ni[geoIndex]) \
00229 { \
00230 if (t3ni[geoIndex][tex3Ind]==-1) \
00231 { \
00232 tex3[geoIndex]->push_back(it.getTexCoords3(k+INDEX)); \
00233 t3ni[geoIndex][tex3Ind]=tex3[geoIndex]->size()-1; \
00234 } \
00235 } \
00236 if (indices[geoIndex]!=NullFC) \
00237 { \
00238 if (geos[geoIndex]->getMFIndexMapping()->size()<2) \
00239 { \
00240 indices[geoIndex]->push_back(pni[geoIndex][posInd]); \
00241 } \
00242 else \
00243 { \
00244 UInt32 * offsets = new UInt32 [ geos[geoIndex]->getMFIndexMapping()->size() ]; \
00245 Int16 mind; \
00246 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapPosition ) ) >= 0 ) \
00247 offsets[ mind ] = pni[geoIndex][posInd]; \
00248 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapNormal ) ) >= 0 ) \
00249 offsets[ mind ] = nni[geoIndex][normInd]; \
00250 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapColor ) ) >= 0 ) \
00251 offsets[ mind ] = cni[geoIndex][colInd]; \
00252 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapSecondaryColor ) ) >= 0 ) \
00253 offsets[ mind ] = sni[geoIndex][scolInd]; \
00254 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapTexCoords ) ) >= 0 ) \
00255 offsets[ mind ] = tni[geoIndex][texInd]; \
00256 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapTexCoords1 ) ) >= 0 ) \
00257 offsets[ mind ] = t1ni[geoIndex][tex1Ind]; \
00258 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapTexCoords2 ) ) >= 0 ) \
00259 offsets[ mind ] = t2ni[geoIndex][tex2Ind]; \
00260 if ( ( mind = geos[geoIndex]->calcMappingIndex( Geometry::MapTexCoords3 ) ) >= 0 ) \
00261 offsets[ mind ] = t3ni[geoIndex][tex3Ind]; \
00262 for (UInt32 j=0; j<geos[geoIndex]->getMFIndexMapping()->size(); j++) \
00263 indices[geoIndex]->push_back(offsets[j]); \
00264 delete [] offsets; \
00265 } \
00266 } \
00267 }
00268
00269 #define setupAttr( type , arr1 , arr2 , getmethod ) \
00270 if (geo->getmethod()!=NullFC && geo->getmethod()->size()>0) \
00271 { \
00272 arr1[i] = type::dcast(geo->getmethod()->getType().createFieldContainer()); \
00273 beginEditCP(arr1[i]); \
00274 arr2[i] = new int[geo->getmethod()->size()]; \
00275 for (UInt32 j=0; j<geo->getmethod()->size(); j++) \
00276 arr2[i][j]=-1; \
00277 } else { arr2[i]=0; arr1[i]=NullFC; }
00278
00279 Action::ResultE SplitGraphOp::traverseLeave(NodePtr& node, Action::ResultE res)
00280 {
00281 std::vector<NodePtr>::iterator it = node->editMFChildren()->getValues().begin();
00282 std::vector<NodePtr>::iterator en = node->editMFChildren()->getValues().end ();
00283 std::vector<NodePtr> toAdd;
00284 std::vector<NodePtr> toSub;
00285
00286 for ( ; it != en; ++it )
00287 {
00288 bool special=isInExcludeList(*it);
00289 bool leaf=isLeaf(*it);
00290
00291 if (!special && leaf)
00292 {
00293 if (splitNode(*it, toAdd))
00294 toSub.push_back(*it);
00295 }
00296 }
00297
00298 it = toAdd.begin();
00299 en = toAdd.end ();
00300
00301 for ( ; it != en; ++it )
00302 {
00303 beginEditCP(node, Node::ChildrenFieldMask);
00304 node->addChild(*it);
00305 endEditCP (node, Node::ChildrenFieldMask);
00306 }
00307
00308 it = toSub.begin();
00309 en = toSub.end ();
00310
00311 for ( ; it != en; ++it )
00312 {
00313 beginEditCP(node, Node::ChildrenFieldMask);
00314 addRefCP(*it);
00315 node->subChild(*it);
00316 endEditCP (node, Node::ChildrenFieldMask);
00317 }
00318 return res;
00319 }
00320
00321 bool SplitGraphOp::splitNode(NodePtr& node, std::vector<NodePtr> &split)
00322 {
00323
00324 if (!isLeaf(node) || isInExcludeList(node) ||
00325 !node->getCore()->getType().isDerivedFrom(Geometry::getClassType())) return false;
00326
00327 GeometryPtr geo = GeometryPtr::dcast(node->getCore());
00328
00329 if ( geo->getPositions() == NullFC || geo->getPositions()->size() == 0 ||
00330 geo->getLengths() == NullFC || geo->getLengths()->size() == 0 ||
00331 geo->getTypes() == NullFC || geo->getTypes()->size() == 0 ) return false;
00332
00333
00334 std::vector<Pnt3f> centers;
00335 int ind;
00336
00337 PrimitiveIterator it(geo);
00338
00339 while (!it.isAtEnd())
00340 {
00341 switch(it.getType())
00342 {
00343 case GL_POINTS:
00344 case GL_LINES:
00345 case GL_LINE_STRIP:
00346 case GL_LINE_LOOP:
00347 case GL_TRIANGLE_FAN:
00348 case GL_TRIANGLE_STRIP:
00349 case GL_QUAD_STRIP:
00350 case GL_POLYGON:
00351 {
00352 Pnt3f center(0,0,0);
00353 for (UInt32 i=0; i<it.getLength(); i++)
00354 center+=Vec3f(it.getPosition(i));
00355 center/=Real32(it.getLength());
00356 centers.push_back(center);
00357 }
00358 break;
00359
00360 case GL_TRIANGLES:
00361 ind=0;
00362 while(it.getLength()-ind>=3)
00363 {
00364 Pnt3f center(0,0,0);
00365 for (UInt32 i=0; i<3; i++, ind++)
00366 center+=Vec3f(it.getPosition(ind));
00367 center/=3;
00368 centers.push_back(center);
00369 }
00370 break;
00371
00372 case GL_QUADS:
00373 ind=0;
00374 while(it.getLength()-ind>=4)
00375 {
00376 Pnt3f center(0,0,0);
00377 for (UInt32 i=0; i<4; i++, ind++)
00378 center+=Vec3f(it.getPosition(ind));
00379 center/=4;
00380 centers.push_back(center);
00381 }
00382 break;
00383
00384
00385 default:
00386 SWARNING << "SplitGraphOp::splitLeave: encountered "
00387 << "unknown primitive type "
00388 << it.getType()
00389 << ", ignoring!" << std::endl;
00390 break;
00391 }
00392
00393 ++it;
00394 }
00395
00396 std::vector<int> order;
00397 for (UInt32 i=0; i<centers.size(); i++)
00398 order.push_back(i);
00399
00400 Pnt3fComparator comp(centers);
00401 std::sort(order.begin(), order.end(), comp);
00402
00403
00404 int ngeos=int(ceil(double(centers.size())/double(_max_polygons)));
00405
00406 if (ngeos<=1) return false;
00407
00408 GeometryPtr *geos = new GeometryPtr[ngeos];
00409 GeoPTypesPtr *types = new GeoPTypesPtr[ngeos];
00410 GeoPLengthsPtr *lens = new GeoPLengthsPtr[ngeos];
00411 GeoPositionsPtr *pnts = new GeoPositionsPtr[ngeos];
00412 GeoNormalsPtr *normals = new GeoNormalsPtr[ngeos];
00413 GeoColorsPtr *colors = new GeoColorsPtr[ngeos];
00414 GeoColorsPtr *scolors = new GeoColorsPtr[ngeos];
00415 GeoTexCoordsPtr *tex = new GeoTexCoordsPtr[ngeos];
00416 GeoTexCoordsPtr *tex1 = new GeoTexCoordsPtr[ngeos];
00417 GeoTexCoordsPtr *tex2 = new GeoTexCoordsPtr[ngeos];
00418 GeoTexCoordsPtr *tex3 = new GeoTexCoordsPtr[ngeos];
00419 GeoIndicesPtr *indices = new GeoIndicesPtr[ngeos];
00420
00421 int **pni = new int*[ngeos];
00422 int **nni = new int*[ngeos];
00423 int **cni = new int*[ngeos];
00424 int **sni = new int*[ngeos];
00425 int **tni = new int*[ngeos];
00426 int **t1ni = new int*[ngeos];
00427 int **t2ni = new int*[ngeos];
00428 int **t3ni = new int*[ngeos];
00429
00430 for (Int32 i=0; i<ngeos; i++)
00431 {
00432 geos[i] = Geometry::create();
00433
00434 beginEditCP(geos[i]);
00435
00436 geos[i]->setMaterial(geo->getMaterial());
00437
00438 if(geo->getMFIndexMapping() != NULL)
00439 geos[i]->editMFIndexMapping()->setValues(*(geo->getMFIndexMapping()));
00440
00441 types[i] = GeoPTypesPtr::dcast(geo->getTypes()->getType().createFieldContainer());
00442 lens[i] = GeoPLengthsPtr::dcast(geo->getLengths()->getType().createFieldContainer());
00443
00444 if (geo->getIndices()!=NullFC)
00445 {
00446 indices[i] = GeoIndicesPtr::dcast(geo->getIndices()->getType().createFieldContainer());
00447 beginEditCP(indices[i]);
00448 }
00449 else
00450 indices[i] = NullFC;
00451
00452 beginEditCP(types[i]);
00453 beginEditCP(lens[i]);
00454
00455 setupAttr( GeoPositionsPtr , pnts , pni , getPositions );
00456 setupAttr( GeoNormalsPtr , normals , nni , getNormals );
00457 setupAttr( GeoColorsPtr , colors , cni , getColors );
00458 setupAttr( GeoColorsPtr , scolors , sni , getSecondaryColors );
00459 setupAttr( GeoTexCoordsPtr , tex , tni , getTexCoords );
00460 setupAttr( GeoTexCoordsPtr , tex1 , t1ni , getTexCoords1 );
00461 setupAttr( GeoTexCoordsPtr , tex2 , t2ni , getTexCoords2 );
00462 setupAttr( GeoTexCoordsPtr , tex3 , t3ni , getTexCoords3 );
00463 }
00464
00465 ind=0;
00466 it.setToBegin();
00467
00468 while (!it.isAtEnd())
00469 {
00470 switch(it.getType())
00471 {
00472 case GL_POINTS:
00473 case GL_LINES:
00474 case GL_LINE_STRIP:
00475 case GL_LINE_LOOP:
00476 case GL_TRIANGLE_FAN:
00477 case GL_TRIANGLE_STRIP:
00478 case GL_QUAD_STRIP:
00479 case GL_POLYGON:
00480 {
00481 int geoIndex=order[ind]/_max_polygons;
00482
00483 types[geoIndex]->push_back(it.getType());
00484 lens[geoIndex]->push_back(it.getLength());
00485
00486 addPoints( 0 , it.getLength() );
00487 ++ind;
00488 } break;
00489
00490 case GL_TRIANGLES:
00491 {
00492 UInt32 i=0;
00493 while(it.getLength()-i>=3)
00494 {
00495 i+=3;
00496 ++ind;
00497 }
00498 } break;
00499
00500 case GL_QUADS:
00501 {
00502 UInt32 i=0;
00503 while(it.getLength()-i>=4)
00504 {
00505 i+=4;
00506 ++ind;
00507 }
00508 } break;
00509
00510
00511 default:
00512 SWARNING << "SplitGraphOp::splitLeave: encountered "
00513 << "unknown primitive type "
00514 << it.getType()
00515 << ", ignoring!" << std::endl;
00516 break;
00517 }
00518 ++it;
00519 }
00520
00521 ind=0;
00522 it.setToBegin();
00523
00524 while (!it.isAtEnd())
00525 {
00526 switch(it.getType())
00527 {
00528 case GL_POINTS:
00529 case GL_LINES:
00530 case GL_LINE_STRIP:
00531 case GL_LINE_LOOP:
00532 case GL_TRIANGLE_FAN:
00533 case GL_TRIANGLE_STRIP:
00534 case GL_QUAD_STRIP:
00535 case GL_POLYGON:
00536 {
00537 ++ind;
00538 } break;
00539
00540 case GL_TRIANGLES:
00541 {
00542 UInt32 i=0;
00543 int geoIndex;
00544 while(it.getLength()-i>=3)
00545 {
00546 geoIndex = order[ind]/_max_polygons;
00547 if (types[geoIndex]->size()>0 && types[geoIndex]->getValue(types[geoIndex]->size()-1) == GL_TRIANGLES)
00548 {
00549 int lind;
00550 if ((lind=lens[geoIndex]->size()-1)>=0)
00551 lens[geoIndex]->setValue(lens[geoIndex]->getValue(lind)+3, lind);
00552 else
00553 lens[geoIndex]->push_back(3);
00554 }
00555 else
00556 {
00557 types[geoIndex]->push_back(GL_TRIANGLES);
00558 lens[geoIndex]->push_back(3);
00559 }
00560
00561 addPoints( i ,3 );
00562 i+=3;
00563 ++ind;
00564 }
00565 } break;
00566
00567 case GL_QUADS:
00568 {
00569 UInt32 i=0;
00570 while(it.getLength()-i>=4)
00571 {
00572 i+=4;
00573 ++ind;
00574 }
00575 } break;
00576
00577
00578 default:
00579 SWARNING << "SplitGraphOp::splitLeave: encountered "
00580 << "unknown primitive type "
00581 << it.getType()
00582 << ", ignoring!" << std::endl;
00583 break;
00584 }
00585 ++it;
00586 }
00587
00588 ind=0;
00589 it.setToBegin();
00590
00591 while (!it.isAtEnd())
00592 {
00593 switch(it.getType())
00594 {
00595 case GL_POINTS:
00596 case GL_LINES:
00597 case GL_LINE_STRIP:
00598 case GL_LINE_LOOP:
00599 case GL_TRIANGLE_FAN:
00600 case GL_TRIANGLE_STRIP:
00601 case GL_QUAD_STRIP:
00602 case GL_POLYGON:
00603 {
00604 ++ind;
00605 } break;
00606
00607 case GL_TRIANGLES:
00608 {
00609 UInt32 i=0;
00610 while(it.getLength()-i>=3)
00611 {
00612 i+=3;
00613 ++ind;
00614 }
00615 } break;
00616
00617 case GL_QUADS:
00618 {
00619 UInt32 i=0;
00620 int geoIndex;
00621 while(it.getLength()-i>=4)
00622 {
00623 geoIndex = order[ind]/_max_polygons;
00624 if (types[geoIndex]->size()>0 && types[geoIndex]->getValue(types[geoIndex]->size()-1) == GL_QUADS)
00625 {
00626 int lind;
00627 if ((lind=lens[geoIndex]->size()-1)>=0)
00628 lens[geoIndex]->setValue(lens[geoIndex]->getValue(lind)+4, lind);
00629 else
00630 lens[geoIndex]->push_back(4);
00631 }
00632 else
00633 {
00634 types[geoIndex]->push_back(GL_QUADS);
00635 lens[geoIndex]->push_back(4);
00636 }
00637
00638 addPoints( i , 4 );
00639 i+=4;
00640 ++ind;
00641 }
00642 } break;
00643
00644 default:
00645 SWARNING << "SplitGraphOp::splitLeave: encountered "
00646 << "unknown primitive type "
00647 << it.getType()
00648 << ", ignoring!" << std::endl;
00649 break;
00650 }
00651 ++it;
00652 }
00653
00654 for (Int32 i=0; i<ngeos; i++)
00655 {
00656 geos[i]->setTypes(types[i]);
00657 geos[i]->setLengths(lens[i]);
00658 geos[i]->setPositions(pnts[i]);
00659
00660
00661
00662 endEditCP(types[i]);
00663 endEditCP(lens[i]);
00664 endEditCP(pnts[i]);
00665
00666 if (indices[i]!=NullFC)
00667 {
00668 geos[i]->setIndices(indices[i]);
00669 endEditCP(indices[i]);
00670 }
00671
00672 if (normals[i]!=NullFC)
00673 {
00674 geos[i]->setNormals(normals[i]);
00675 endEditCP(normals[i]);
00676 }
00677
00678 if (colors[i]!=NullFC)
00679 {
00680 geos[i]->setColors(colors[i]);
00681 endEditCP(colors[i]);
00682 }
00683
00684 if (scolors[i]!=NullFC)
00685 {
00686 geos[i]->setSecondaryColors(scolors[i]);
00687 endEditCP(scolors[i]);
00688 }
00689
00690 if (tex[i]!=NullFC)
00691 {
00692 geos[i]->setTexCoords(tex[i]);
00693 endEditCP(tex[i]);
00694 }
00695
00696 if (tex1[i]!=NullFC)
00697 {
00698 geos[i]->setTexCoords1(tex1[i]);
00699 endEditCP(tex1[i]);
00700 }
00701
00702 if (tex2[i]!=NullFC)
00703 {
00704 geos[i]->setTexCoords2(tex2[i]);
00705 endEditCP(tex2[i]);
00706 }
00707
00708 if (tex3[i]!=NullFC)
00709 {
00710 geos[i]->setTexCoords3(tex3[i]);
00711 endEditCP(tex3[i]);
00712 }
00713
00714 endEditCP(geos[i]);
00715
00716 if (node->getParent()!=NullFC)
00717 {
00718 NodePtr n=Node::create();
00719 beginEditCP(n, Node::CoreFieldMask);
00720 n->setCore(geos[i]);
00721 endEditCP (n, Node::CoreFieldMask);
00722 split.push_back(n);
00723 }
00724 }
00725
00726 for (Int32 i=0; i<ngeos; i++)
00727 {
00728 if (pni[i]) delete [] pni[i];
00729 if (nni[i]) delete [] nni[i];
00730 if (cni[i]) delete [] cni[i];
00731 if (sni[i]) delete [] sni[i];
00732 if (tni[i]) delete [] tni[i];
00733 if (t1ni[i]) delete [] t1ni[i];
00734 if (t2ni[i]) delete [] t2ni[i];
00735 if (t3ni[i]) delete [] t3ni[i];
00736 }
00737
00738 delete [] pni;
00739 delete [] nni;
00740 delete [] cni;
00741 delete [] sni;
00742 delete [] tni;
00743 delete [] t1ni;
00744 delete [] t2ni;
00745 delete [] t3ni;
00746
00747 return true;
00748 }
00749
00750 bool SplitGraphOp::isLeaf(NodePtr& node)
00751 {
00752 if (node->getMFChildren()->getValues().begin()==
00753 node->getMFChildren()->getValues().end()) return true;
00754 else return false;
00755 }
00756
00759 bool SplitGraphOp::isGroup(NodePtr& node)
00760 {
00761 if( node->getCore()->getType().isDerivedFrom( Group::getClassType() ) &&
00762 !node->getCore()->getType().isDerivedFrom( Transform::getClassType() ) &&
00763 !node->getCore()->getType().isDerivedFrom( ComponentTransform::getClassType() ) &&
00764 !node->getCore()->getType().isDerivedFrom( Switch::getClassType() ) &&
00765 !node->getCore()->getType().isDerivedFrom( MaterialGroup::getClassType() ) &&
00766 !node->getCore()->getType().isDerivedFrom( DistanceLOD::getClassType() ) &&
00767 !node->getCore()->getType().isDerivedFrom( Billboard::getClassType() ))
00768 return true;
00769 else return false;
00770 }
