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00043 #include <stdlib.h>
00044 #include <stdio.h>
00045
00046 #include "OSGConfig.h"
00047 #include "OSGNodePtr.h"
00048 #include "OSGPrimitiveIterator.h"
00049
00050 OSG_USING_NAMESPACE
00051
00052
00053
00054
00055
00056
00057
00066 #if !defined(OSG_DO_DOC) || defined(OSG_DOC_DEV)
00067
00194 #endif // only include in dev docs
00195
00196
00197
00198
00199
00200 char PrimitiveIterator::cvsid[] = "@(#)$Id: OSGPrimitiveIterator.cpp,v 1.17 2001/11/01 05:55:06 vossg Exp $";
00201
00202
00203
00204
00205
00206
00207
00208
00209
00210
00211
00212 PrimitiveIterator::PrimitiveIterator(void) :
00213 _geo ( ),
00214 _ended ( true),
00215 _primIndex ( 0),
00216 _actPointIndex ( 0),
00217 _actPrimType ( 0),
00218 _actPrimLength ( 0),
00219 _types (NullFC),
00220 _lengths (NullFC),
00221 _indices (NullFC),
00222 _nmappings ( 0),
00223 _positionIndex ( -1),
00224 _normalIndex ( -1),
00225 _colorIndex ( -1),
00226 _secondaryColorIndex( -1),
00227 _texcoordsIndex ( -1),
00228 _texcoordsIndex1 ( -1),
00229 _texcoordsIndex2 ( -1),
00230 _texcoordsIndex3 ( -1),
00231 _texcoordsIndex4 ( -1),
00232 _texcoordsIndex5 ( -1),
00233 _texcoordsIndex6 ( -1),
00234 _texcoordsIndex7 ( -1)
00235 {
00236 }
00237
00243 PrimitiveIterator::PrimitiveIterator(const GeometryPtr& geo) :
00244 _geo ( ),
00245 _ended ( true),
00246 _primIndex ( 0),
00247 _actPointIndex ( 0),
00248 _actPrimType ( 0),
00249 _actPrimLength ( 0),
00250 _types (NullFC),
00251 _lengths (NullFC),
00252 _indices (NullFC),
00253 _nmappings ( 0),
00254 _positionIndex ( -1),
00255 _normalIndex ( -1),
00256 _colorIndex ( -1),
00257 _secondaryColorIndex( -1),
00258 _texcoordsIndex ( -1),
00259 _texcoordsIndex1 ( -1),
00260 _texcoordsIndex2 ( -1),
00261 _texcoordsIndex3 ( -1),
00262 _texcoordsIndex4 ( -1),
00263 _texcoordsIndex5 ( -1),
00264 _texcoordsIndex6 ( -1),
00265 _texcoordsIndex7 ( -1)
00266 {
00267 setGeo(geo);
00268 }
00269
00275 PrimitiveIterator::PrimitiveIterator(const NodePtr& geo) :
00276 _geo ( ),
00277 _ended ( true),
00278 _primIndex ( 0),
00279 _actPointIndex ( 0),
00280 _actPrimType ( 0),
00281 _actPrimLength ( 0),
00282 _types (NullFC),
00283 _lengths (NullFC),
00284 _indices (NullFC),
00285 _nmappings ( 0),
00286 _positionIndex ( -1),
00287 _normalIndex ( -1),
00288 _colorIndex ( -1),
00289 _secondaryColorIndex( -1),
00290 _texcoordsIndex ( -1),
00291 _texcoordsIndex1 ( -1),
00292 _texcoordsIndex2 ( -1),
00293 _texcoordsIndex3 ( -1),
00294 _texcoordsIndex4 ( -1),
00295 _texcoordsIndex5 ( -1),
00296 _texcoordsIndex6 ( -1),
00297 _texcoordsIndex7 ( -1)
00298 {
00299 setGeo(geo);
00300 }
00301
00302
00303 PrimitiveIterator::PrimitiveIterator(const PrimitiveIterator &source) :
00304 _geo (source._geo ),
00305 _ended (source._ended ),
00306 _primIndex (source._primIndex ),
00307 _actPointIndex (source._actPointIndex ),
00308 _actPrimType (source._actPrimType ),
00309 _actPrimLength (source._actPrimLength ),
00310 _types (source._types ),
00311 _lengths (source._lengths ),
00312 _indices (source._indices ),
00313 _nmappings (source._nmappings ),
00314 _positionIndex (source._positionIndex ),
00315 _normalIndex (source._normalIndex ),
00316 _colorIndex (source._colorIndex ),
00317 _secondaryColorIndex(source._secondaryColorIndex),
00318 _texcoordsIndex (source._texcoordsIndex ),
00319 _texcoordsIndex1 (source._texcoordsIndex1 ),
00320 _texcoordsIndex2 (source._texcoordsIndex2 ),
00321 _texcoordsIndex3 (source._texcoordsIndex3 ),
00322 _texcoordsIndex4 (source._texcoordsIndex4 ),
00323 _texcoordsIndex5 (source._texcoordsIndex5 ),
00324 _texcoordsIndex6 (source._texcoordsIndex6 ),
00325 _texcoordsIndex7 (source._texcoordsIndex7 )
00326 {
00327 }
00328
00329 PrimitiveIterator::~PrimitiveIterator(void)
00330 {
00331 }
00332
00333
00334
00335
00339 void PrimitiveIterator::setGeo(const GeometryPtr& geo)
00340 {
00341 OSG_ASSERT(geo != NullFC);
00342
00343 _geo = geo;
00344 _types = geo->getTypes();
00345 _lengths = geo->getLengths();
00346 _indices = geo->getIndices();
00347
00348 setToBegin();
00349 }
00350
00351
00355 void PrimitiveIterator::setGeo(const NodePtr& geo)
00356 {
00357 GeometryPtr gc = GeometryPtr::dcast(geo->getCore());
00358
00359 if(gc == NullFC)
00360 {
00361 FWARNING(("PrimitiveIterator::setGeo: called for NodePtr which "
00362 "is not a Geometry!\n"));
00363 }
00364 else
00365 {
00366 setGeo(gc);
00367 }
00368 }
00369
00370
00371
00378 void PrimitiveIterator::operator++()
00379 {
00380 if(isAtEnd())
00381 {
00382 return;
00383 }
00384
00385 _actPointIndex += _actPrimLength;
00386
00387 ++_primIndex;
00388
00389 if(_primIndex >= _types->getSize())
00390 {
00391 _ended = true;
00392 }
00393 else
00394 {
00395 _actPrimType = _types->getValue(_primIndex);
00396 if(_lengths != NullFC)
00397 {
00398 _actPrimLength = _lengths->getValue(_primIndex);
00399 }
00400 else if(_indices != NullFC)
00401 {
00402 _actPrimLength = _indices->getSize() / _nmappings;
00403 }
00404 else
00405 {
00406 _actPrimLength = _geo->getPositions()->getSize() / _nmappings;
00407 }
00408 }
00409 }
00410
00415 void PrimitiveIterator::setToBegin(void)
00416 {
00417 _primIndex = 0;
00418 _actPointIndex = 0;
00419 _ended = false;
00420 _nmappings = _geo->getIndexMapping().size();
00421 _positionIndex = _geo->calcMappingIndex(Geometry::MapPosition);
00422 _normalIndex = _geo->calcMappingIndex(Geometry::MapNormal);
00423 _colorIndex = _geo->calcMappingIndex(Geometry::MapColor);
00424 _secondaryColorIndex = _geo->calcMappingIndex(Geometry::MapSecondaryColor);
00425 _texcoordsIndex = _geo->calcMappingIndex(Geometry::MapTexCoords);
00426 _texcoordsIndex1 = _geo->calcMappingIndex(Geometry::MapTexCoords1);
00427 _texcoordsIndex2 = _geo->calcMappingIndex(Geometry::MapTexCoords2);
00428 _texcoordsIndex3 = _geo->calcMappingIndex(Geometry::MapTexCoords3);
00429 _texcoordsIndex4 = _geo->calcMappingIndex(Geometry::MapTexCoords4);
00430 _texcoordsIndex5 = _geo->calcMappingIndex(Geometry::MapTexCoords5);
00431 _texcoordsIndex6 = _geo->calcMappingIndex(Geometry::MapTexCoords6);
00432 _texcoordsIndex7 = _geo->calcMappingIndex(Geometry::MapTexCoords7);
00433
00434 if(_nmappings == 0)
00435 _nmappings = 1;
00436
00437 if(_types != NullFC && _types->getSize() > 0)
00438 {
00439 _actPrimType = _types->getValue(_primIndex);
00440 if(_lengths != NullFC)
00441 {
00442 _actPrimLength = _lengths->getValue(_primIndex);
00443 }
00444 else if(_indices != NullFC)
00445 {
00446 _actPrimLength = _indices->getSize() / _nmappings;
00447 }
00448 else
00449 {
00450 _actPrimLength = _geo->getPositions()->getSize() / _nmappings;
00451 }
00452 }
00453 else
00454 {
00455 setToEnd();
00456 }
00457 }
00458
00463 void PrimitiveIterator::setToEnd(void)
00464 {
00465 if(_types != NullFC)
00466 _primIndex = _types->getSize();
00467 else
00468 _primIndex = 0;
00469 _actPointIndex = 0;
00470 _ended = true;
00471 }
00472
00479 void PrimitiveIterator::seek(Int32 index)
00480 {
00481 _actPointIndex = 0;
00482 _ended = false;
00483
00484 if(index >= Int32(_types->getSize()))
00485 {
00486 _primIndex = _types->getSize();
00487 _ended = true;
00488 }
00489 else
00490 {
00491 _primIndex = osgMax(0, index);
00492
00493 for(UInt32 j = 0; j < _primIndex; j++)
00494 _actPointIndex += _lengths->getValue(j);
00495
00496 _actPrimType = _types->getValue(_primIndex);
00497 _actPrimLength = _lengths->getValue(_primIndex);
00498 }
00499 }
00500
00501
00502
00503 PrimitiveIterator& PrimitiveIterator::operator =(const PrimitiveIterator &source)
00504 {
00505 if(this == &source)
00506 return *this;
00507
00508 this->_geo = source._geo;
00509 this->_primIndex = source._primIndex;
00510 this->_actPrimType = source._actPrimType;
00511 this->_actPrimLength = source._actPrimLength;
00512 this->_actPointIndex = source._actPointIndex;
00513 this->_types = source._types;
00514 this->_lengths = source._lengths;
00515 this->_indices = source._indices;
00516 this->_ended = source._ended;
00517 this->_nmappings = source._nmappings;
00518 this->_positionIndex = source._positionIndex;
00519 this->_normalIndex = source._normalIndex;
00520 this->_colorIndex = source._colorIndex;
00521 this->_secondaryColorIndex = source._colorIndex;
00522 this->_texcoordsIndex = source._texcoordsIndex;
00523 this->_texcoordsIndex1 = source._texcoordsIndex1;
00524 this->_texcoordsIndex2 = source._texcoordsIndex2;
00525 this->_texcoordsIndex3 = source._texcoordsIndex3;
00526 this->_texcoordsIndex4 = source._texcoordsIndex4;
00527 this->_texcoordsIndex5 = source._texcoordsIndex5;
00528 this->_texcoordsIndex6 = source._texcoordsIndex6;
00529 this->_texcoordsIndex7 = source._texcoordsIndex7;
00530
00531 return *this;
00532 }
00533
00534
00535
00539 bool PrimitiveIterator::operator <(const PrimitiveIterator &other) const
00540 {
00541 return _geo == other._geo &&
00542 _primIndex <= other._primIndex;
00543 }
00544
00548 bool PrimitiveIterator::operator ==(const PrimitiveIterator &other) const
00549 {
00550 return _ended == other._ended &&
00551 _geo == other._geo &&
00552 _primIndex == other._primIndex;
00553 }
00554
00558 bool PrimitiveIterator::operator !=(const PrimitiveIterator &other) const
00559 {
00560 return !(*this == other);
00561 }
