Exemplo n.º 1
0
static int scalar_cb(p_ply_argument argument)
{
	CCLib::ScalarField* sf = 0;
	ply_get_argument_user_data(argument, (void**)(&sf), NULL);

	p_ply_element element;
	long instance_index;
	ply_get_argument_element(argument, &element, &instance_index);

	ScalarType scal = static_cast<ScalarType>(ply_get_argument_value(argument));
	sf->setValue(instance_index,scal);

	if ((++s_totalScalarCount % PROCESS_EVENTS_FREQ) == 0)
		QCoreApplication::processEvents();

	return 1;
}
Exemplo n.º 2
0
CC_FILE_ERROR BinFilter::LoadFileV1(QFile& in, ccHObject& container, unsigned nbScansTotal, const LoadParameters& parameters)
{
	ccLog::Print("[BIN] Version 1.0");

	if (nbScansTotal > 99)
	{
		if (QMessageBox::question(0, QString("Oups"), QString("Hum, do you really expect %1 point clouds?").arg(nbScansTotal), QMessageBox::Yes, QMessageBox::No) == QMessageBox::No)
			return CC_FERR_WRONG_FILE_TYPE;
	}
	else if (nbScansTotal == 0)
	{
		return CC_FERR_NO_LOAD;
	}

	ccProgressDialog pdlg(true, parameters.parentWidget);
	pdlg.setMethodTitle(QObject::tr("Open Bin file (old style)"));

	for (unsigned k=0; k<nbScansTotal; k++)
	{
		HeaderFlags header;
		unsigned nbOfPoints = 0;
		if (ReadEntityHeader(in, nbOfPoints, header) < 0)
		{
			return CC_FERR_READING;
		}

		//Console::print("[BinFilter::loadModelFromBinaryFile] Entity %i : %i points, color=%i, norms=%i, dists=%i\n",k,nbOfPoints,color,norms,distances);

		if (nbOfPoints == 0)
		{
			//Console::print("[BinFilter::loadModelFromBinaryFile] rien a faire !\n");
			continue;
		}

		//progress for this cloud
		CCLib::NormalizedProgress nprogress(&pdlg, nbOfPoints);
		if (parameters.alwaysDisplayLoadDialog)
		{
			pdlg.reset();
			pdlg.setInfo(QObject::tr("cloud %1/%2 (%3 points)").arg(k + 1).arg(nbScansTotal).arg(nbOfPoints));
			pdlg.start();
			QApplication::processEvents();
		}

		//Cloud name
		char cloudName[256] = "unnamed";
		if (header.name)
		{
			for (int i=0; i<256; ++i)
			{
				if (in.read(cloudName+i,1) < 0)
				{
					//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the cloud name!\n");
					return CC_FERR_READING;
				}
				if (cloudName[i] == 0)
				{
					break;
				}
			}
			//we force the end of the name in case it is too long!
			cloudName[255] = 0;
		}
		else
		{
			sprintf(cloudName,"unnamed - Cloud #%u",k);
		}

		//Cloud name
		char sfName[1024] = "unnamed";
		if (header.sfName)
		{
			for (int i=0; i<1024; ++i)
			{
				if (in.read(sfName+i,1) < 0)
				{
					//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the cloud name!\n");
					return CC_FERR_READING;
				}
				if (sfName[i] == 0)
					break;
			}
			//we force the end of the name in case it is too long!
			sfName[1023] = 0;
		}
		else
		{
			strcpy(sfName,"Loaded scalar field");
		}
		
		//Creation
		ccPointCloud* loadedCloud = new ccPointCloud(cloudName);
		if (!loadedCloud)
			return CC_FERR_NOT_ENOUGH_MEMORY;

		unsigned fileChunkPos = 0;
		unsigned fileChunkSize = std::min(nbOfPoints,CC_MAX_NUMBER_OF_POINTS_PER_CLOUD);

		loadedCloud->reserveThePointsTable(fileChunkSize);
		if (header.colors)
		{
			loadedCloud->reserveTheRGBTable();
			loadedCloud->showColors(true);
		}
		if (header.normals)
		{
			loadedCloud->reserveTheNormsTable();
			loadedCloud->showNormals(true);
		}
		if (header.scalarField)
			loadedCloud->enableScalarField();

		unsigned lineRead = 0;
		int parts = 0;

		const ScalarType FORMER_HIDDEN_POINTS = (ScalarType)-1.0;

		//lecture du fichier
		for (unsigned i=0; i<nbOfPoints; ++i)
		{
			if (lineRead == fileChunkPos+fileChunkSize)
			{
				if (header.scalarField)
					loadedCloud->getCurrentInScalarField()->computeMinAndMax();

				container.addChild(loadedCloud);
				fileChunkPos = lineRead;
				fileChunkSize = std::min(nbOfPoints-lineRead,CC_MAX_NUMBER_OF_POINTS_PER_CLOUD);
				char partName[64];
				++parts;
				sprintf(partName,"%s.part_%i",cloudName,parts);
				loadedCloud = new ccPointCloud(partName);
				loadedCloud->reserveThePointsTable(fileChunkSize);

				if (header.colors)
				{
					loadedCloud->reserveTheRGBTable();
					loadedCloud->showColors(true);
				}
				if (header.normals)
				{
					loadedCloud->reserveTheNormsTable();
					loadedCloud->showNormals(true);
				}
				if (header.scalarField)
					loadedCloud->enableScalarField();
			}

			float Pf[3];
			if (in.read((char*)Pf,sizeof(float)*3) < 0)
			{
				//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the %ith entity point !\n",k);
				return CC_FERR_READING;
			}
			loadedCloud->addPoint(CCVector3::fromArray(Pf));

			if (header.colors)
			{
				unsigned char C[3];
				if (in.read((char*)C,sizeof(ColorCompType)*3) < 0)
				{
					//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the %ith entity colors !\n",k);
					return CC_FERR_READING;
				}
				loadedCloud->addRGBColor(C);
			}

			if (header.normals)
			{
				CCVector3 N;
				if (in.read((char*)N.u,sizeof(float)*3) < 0)
				{
					//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the %ith entity norms !\n",k);
					return CC_FERR_READING;
				}
				loadedCloud->addNorm(N);
			}

			if (header.scalarField)
			{
				double D;
				if (in.read((char*)&D,sizeof(double)) < 0)
				{
					//Console::print("[BinFilter::loadModelFromBinaryFile] Error reading the %ith entity distance!\n",k);
					return CC_FERR_READING;
				}
				ScalarType d = static_cast<ScalarType>(D);
				loadedCloud->setPointScalarValue(i,d);
			}

			lineRead++;

			if (parameters.alwaysDisplayLoadDialog && !nprogress.oneStep())
			{
				loadedCloud->resize(i+1-fileChunkPos);
				k=nbScansTotal;
				i=nbOfPoints;
			}
		}

		if (parameters.alwaysDisplayLoadDialog)
		{
			pdlg.stop();
			QApplication::processEvents();
		}

		if (header.scalarField)
		{
			CCLib::ScalarField* sf = loadedCloud->getCurrentInScalarField();
			assert(sf);
			sf->setName(sfName);

			//replace HIDDEN_VALUES by NAN_VALUES
			for (unsigned i=0; i<sf->currentSize(); ++i)
			{
				if (sf->getValue(i) == FORMER_HIDDEN_POINTS)
					sf->setValue(i,NAN_VALUE);
			}
			sf->computeMinAndMax();

			loadedCloud->setCurrentDisplayedScalarField(loadedCloud->getCurrentInScalarFieldIndex());
			loadedCloud->showSF(true);
		}

		container.addChild(loadedCloud);
	}

	return CC_FERR_NO_ERROR;
}
Exemplo n.º 3
0
ccPointCloud* cc2Point5DimEditor::convertGridToCloud(	const std::vector<ExportableFields>& exportedFields,
														bool interpolateSF,
														bool resampleInputCloud,
														ccGenericPointCloud* inputCloud,
														bool fillEmptyCells,
														double emptyCellsHeight) const
{
	if (!m_grid.isValid())
		return 0;

	unsigned pointsCount = (fillEmptyCells ? m_grid.width * m_grid.height : m_grid.validCellCount);
	if (pointsCount == 0)
	{
		ccLog::Warning("[Rasterize] Empty grid!");
		return 0;
	}

	ccPointCloud* cloudGrid = 0;
	if (resampleInputCloud)
	{
		CCLib::ReferenceCloud refCloud(inputCloud);
		if (refCloud.reserve(m_grid.nonEmptyCellCount))
		{
			for (unsigned j=0; j<m_grid.height; ++j)
			{
				for (unsigned i=0; i<m_grid.width; ++i)
				{
					const RasterCell& cell = m_grid.data[j][i];
					if (cell.nbPoints) //non empty cell
					{
						refCloud.addPointIndex(cell.pointIndex);
					}
				}
			}

			assert(refCloud.size() != 0);
			cloudGrid = inputCloud->isA(CC_TYPES::POINT_CLOUD) ? static_cast<ccPointCloud*>(inputCloud)->partialClone(&refCloud) : ccPointCloud::From(&refCloud,inputCloud);
			cloudGrid->setPointSize(0); //to avoid display issues

			//even if we have already resampled the original cloud we may have to create new points and/or scalar fields
			//if (!interpolateSF && !fillEmptyCells)
			//	return cloudGrid;
		}
		else
		{
			ccLog::Warning("[Rasterize] Not enough memory!");
			return 0;
		}
	}
	else
	{
		cloudGrid = new ccPointCloud("grid");
	}
	assert(cloudGrid);
	
	//shall we generate per-cell fields as well?
	std::vector<CCLib::ScalarField*> exportedSFs;
	if (!exportedFields.empty())
	{
		exportedSFs.resize(exportedFields.size(),0);
		for (size_t i=0; i<exportedFields.size(); ++i)
		{
			int sfIndex = -1;
			switch (exportedFields[i])
			{
			case PER_CELL_HEIGHT:
			case PER_CELL_COUNT:
			case PER_CELL_MIN_HEIGHT:
			case PER_CELL_MAX_HEIGHT:
			case PER_CELL_AVG_HEIGHT:
			case PER_CELL_HEIGHT_STD_DEV:
			case PER_CELL_HEIGHT_RANGE:
				sfIndex = cloudGrid->addScalarField(qPrintable(GetDefaultFieldName(exportedFields[i])));
				break;
			default:
				assert(false);
				break;
			}
			if (sfIndex < 0)
			{
				ccLog::Warning("[Rasterize] Couldn't allocate scalar field(s)! Try to free some memory ...");
				break;
			}

			exportedSFs[i] = cloudGrid->getScalarField(sfIndex);
			assert(exportedSFs[i]);
		}
	}

	//the resampled cloud already contains the points corresponding to 'filled' cells so we will only
	//need to add the empty ones (if requested)
	if ((!resampleInputCloud || fillEmptyCells) && !cloudGrid->reserve(pointsCount))
	{
		ccLog::Warning("[Rasterize] Not enough memory!");
		delete cloudGrid;
		return 0;
	}

	//vertical dimension
	const unsigned char Z = getProjectionDimension();
	assert(Z >= 0 && Z <= 2);
	const unsigned char X = Z == 2 ? 0 : Z +1;
	const unsigned char Y = X == 2 ? 0 : X +1;

	//cloud bounding-box
	ccBBox box = getCustomBBox();
	assert(box.isValid());

	//we work with doubles as grid step can be much smaller than the cloud coordinates!
	double Py = box.minCorner().u[Y];

	//as the 'non empty cells points' are already in the cloud
	//we must take care of where we put the scalar fields values!
	unsigned nonEmptyCellIndex = 0;

	for (unsigned j=0; j<m_grid.height; ++j)
	{
		const RasterCell* aCell = m_grid.data[j];
		double Px = box.minCorner().u[X];
		for (unsigned i=0; i<m_grid.width; ++i,++aCell)
		{
			if (aCell->h == aCell->h) //valid cell
			{
				//if we haven't resampled the original cloud, we must add the point
				//corresponding to this non-empty cell
				if (!resampleInputCloud || aCell->nbPoints == 0)
				{
					CCVector3 Pf(	static_cast<PointCoordinateType>(Px),
									static_cast<PointCoordinateType>(Py),
									static_cast<PointCoordinateType>(aCell->h) );

					cloudGrid->addPoint(Pf);
				}

				//fill the associated SFs
				assert(exportedSFs.size() >= exportedFields.size());
				assert(!inputCloud || nonEmptyCellIndex < inputCloud->size());
				for (size_t i=0; i<exportedSFs.size(); ++i)
				{
					CCLib::ScalarField* sf = exportedSFs[i];
					ScalarType sVal = NAN_VALUE;
					switch (exportedFields[i])
					{
					case PER_CELL_HEIGHT:
						sVal = static_cast<ScalarType>(aCell->h);
						break;
					case PER_CELL_COUNT:
						sVal = static_cast<ScalarType>(aCell->nbPoints);
						break;
					case PER_CELL_MIN_HEIGHT:
						sVal = static_cast<ScalarType>(aCell->minHeight);
						break;
					case PER_CELL_MAX_HEIGHT:
						sVal = static_cast<ScalarType>(aCell->maxHeight);
						break;
					case PER_CELL_AVG_HEIGHT:
						sVal = static_cast<ScalarType>(aCell->avgHeight);
						break;
					case PER_CELL_HEIGHT_STD_DEV:
						sVal = static_cast<ScalarType>(aCell->stdDevHeight);
						break;
					case PER_CELL_HEIGHT_RANGE:
						sVal = static_cast<ScalarType>(aCell->maxHeight - aCell->minHeight);
						break;
					default:
						assert(false);
						break;
					}
					if (resampleInputCloud)
						sf->setValue(nonEmptyCellIndex,sVal);
					else
						sf->addElement(sVal);
				}
				++nonEmptyCellIndex;
			}
			else if (fillEmptyCells) //empty cell
			{
				//even if we have resampled the original cloud, we must add the point
				//corresponding to this empty cell
				{
					CCVector3 Pf(	static_cast<PointCoordinateType>(Px),
									static_cast<PointCoordinateType>(Py),
									static_cast<PointCoordinateType>(emptyCellsHeight) );
					cloudGrid->addPoint(Pf);
				}

				assert(exportedSFs.size() == exportedFields.size());
				for (size_t i=0; i<exportedSFs.size(); ++i)
				{
					if (!exportedSFs[i])
					{
						continue;
					}
					
					if (exportedFields[i] == PER_CELL_HEIGHT)
					{
						//we set the point height to the default height
						ScalarType s = static_cast<ScalarType>(emptyCellsHeight);
						exportedSFs[i]->addElement(s);
					}
					else
					{
						exportedSFs[i]->addElement(NAN_VALUE);
					}
				}
			}

			Px += m_grid.gridStep;
		}

		Py += m_grid.gridStep;
	}

	assert(exportedSFs.size() == exportedFields.size());
	for (size_t i=0; i<exportedSFs.size(); ++i)
	{
		CCLib::ScalarField* sf = exportedSFs[i];
		if (sf)
		{
			sf->computeMinAndMax();
		}
	}

	//take care of former scalar fields
	if (!resampleInputCloud)
	{
		if (interpolateSF && inputCloud && inputCloud->isA(CC_TYPES::POINT_CLOUD))
		{
			ccPointCloud* pc = static_cast<ccPointCloud*>(inputCloud);
			for (size_t k=0; k<m_grid.scalarFields.size(); ++k)
			{
				double* _sfGrid = m_grid.scalarFields[k];
				if (_sfGrid) //valid SF grid
				{
					//the corresponding SF should exist on the input cloud
					ccScalarField* formerSf = static_cast<ccScalarField*>(pc->getScalarField(static_cast<int>(k)));
					assert(formerSf);

					//we try to create an equivalent SF on the output grid
					int sfIdx = cloudGrid->addScalarField(formerSf->getName());
					if (sfIdx < 0) //if we aren't lucky, the input cloud already had a SF with CC_HEIGHT_GRID_FIELD_NAME as name
						sfIdx = cloudGrid->addScalarField(qPrintable(QString(formerSf->getName()).append(".old")));

					if (sfIdx < 0)
					{
						ccLog::Warning("[Rasterize] Couldn't allocate a new scalar field for storing SF '%s' values! Try to free some memory ...",formerSf->getName());
					}
					else
					{
						ccScalarField* sf = static_cast<ccScalarField*>(cloudGrid->getScalarField(sfIdx));
						assert(sf);
						//set sf values
						unsigned n = 0;
						const ScalarType emptyCellSFValue = CCLib::ScalarField::NaN();
						for (unsigned j=0; j<m_grid.height; ++j)
						{
							const RasterCell* aCell = m_grid.data[j];
							for (unsigned i=0; i<m_grid.width; ++i, ++_sfGrid, ++aCell)
							{
								if (aCell->nbPoints)
								{
									ScalarType s = static_cast<ScalarType>(*_sfGrid);
									sf->setValue(n++,s);
								}
								else if (fillEmptyCells)
								{
									sf->setValue(n++,emptyCellSFValue);
								}
							}
						}
						sf->computeMinAndMax();
						sf->importParametersFrom(formerSf);
						assert(sf->currentSize() == pointsCount);
					}
				}
			}
		}
	}
	else
	{
		for (size_t k=0; k<cloudGrid->getNumberOfScalarFields(); ++k)
		{
			CCLib::ScalarField* sf = cloudGrid->getScalarField(static_cast<int>(k));
			sf->resize(cloudGrid->size(),true,NAN_VALUE);
		}
	}

	QString gridName = QString("raster(%1)").arg(m_grid.gridStep);
	if (inputCloud)
	{
		gridName.prepend(inputCloud->getName() + QString("."));
	}
	cloudGrid->setName(gridName);

	return cloudGrid;
}
Exemplo n.º 4
0
CC_FILE_ERROR VTKFilter::loadFile(const char* filename, ccHObject& container, bool alwaysDisplayLoadDialog/*=true*/, bool* coordinatesShiftEnabled/*=0*/, CCVector3d* coordinatesShift/*=0*/)
{
	//open ASCII file for reading
	QFile file(filename);
	if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
		return CC_FERR_READING;

	QTextStream inFile(&file);

	//read header
	QString nextline = inFile.readLine();
	if (!nextline.startsWith("# vtk"))
		return CC_FERR_MALFORMED_FILE;

	//comment
	nextline = inFile.readLine();
	ccLog::Print(QString("[VTK] ")+nextline);

	ccMesh* mesh = 0;
	ccPointCloud* vertices = 0;
	
	std::vector<int> indexes; //global so as to avoid unnecessary mem. allocations
	QString lastSfName;
	bool acceptLookupTables = true;

	QString fileType = inFile.readLine().toUpper();
	if (fileType.startsWith("BINARY"))
	{
		//binary not supported yet!
		ccLog::Error("VTK binary format not supported yet!");
		return CC_FERR_WRONG_FILE_TYPE;
	}
	else if (fileType.startsWith("ASCII"))
	{
		//allow blank lines
		QString dataType;
		if (!GetNextNonEmptyLine(inFile,dataType))
			return CC_FERR_MALFORMED_FILE;
		if (!dataType.startsWith("DATASET"))
			return CC_FERR_MALFORMED_FILE;
		dataType.remove(0,8);
		if (dataType.startsWith("POLYDATA"))
		{
			vertices = new ccPointCloud("vertices");
			mesh = new ccMesh(vertices);
		}
		else if (dataType.startsWith("UNSTRUCTURED_GRID"))
		{
			vertices = new ccPointCloud("unnamed - VTK unstructured grid");
		}
		else
		{
			ccLog::Error(QString("VTK entity '%1' is not supported!").arg(dataType));
			return CC_FERR_WRONG_FILE_TYPE;
		}
	}

	//loop on keywords/data
	CC_FILE_ERROR error = CC_FERR_NO_ERROR;
	CCVector3d Pshift(0,0,0);
	while (error == CC_FERR_NO_ERROR)
	{
		if (!GetNextNonEmptyLine(inFile,nextline))
			break; //end of file

		assert(!nextline.isEmpty());

		if (nextline.startsWith("POINTS"))
		{
			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			if (parts.size() != 3)
			{
				error=CC_FERR_MALFORMED_FILE;
				break;
			}

			bool ok = false;
			unsigned ptsCount = parts[1].toInt(&ok);
			if (!ok)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}

			//QString dataFormat = parts[3].toUpper();
			//char buffer[8];
			//unsigned char datSize = 4;
			//if (dataFormat == "DOUBLE")
			//{
			//	datSize = 8;
			//}
			//else if (dataFormat != "FLOAT")
			//{
			//	ccLog::Error(QString("Non floating point data (%1) is not supported!").arg(dataFormat));
			//	error = CC_FERR_WRONG_FILE_TYPE;
			//	break;
			//}

			if (!vertices->reserve(ptsCount))
			{
				error = CC_FERR_NOT_ENOUGH_MEMORY;
				break;
			}

			for (unsigned i=0; i<ptsCount; ++i)
			{
				nextline = inFile.readLine();
				parts = nextline.split(" ",QString::SkipEmptyParts);
				if (parts.size() != 3)
				{
					error = CC_FERR_MALFORMED_FILE;
					break;
				}

				double Pd[3] = {0,0,0};
				for (unsigned char j=0; j<3; ++j)
				{
					Pd[j] = parts[j].toDouble(&ok);
					if (!ok)
					{
						ccLog::Warning("[VTK] Element #%1 of POINTS data is corrupted!",i);
						error = CC_FERR_MALFORMED_FILE;
						break;
					}
				}

				//first point: check for 'big' coordinates
				if (i == 0)
				{
					bool shiftAlreadyEnabled = (coordinatesShiftEnabled && *coordinatesShiftEnabled && coordinatesShift);
					if (shiftAlreadyEnabled)
						Pshift = *coordinatesShift;
					bool applyAll = false;
					if (	sizeof(PointCoordinateType) < 8
						&&	ccCoordinatesShiftManager::Handle(Pd,0,alwaysDisplayLoadDialog,shiftAlreadyEnabled,Pshift,0,applyAll))
					{
						vertices->setGlobalShift(Pshift);
						ccLog::Warning("[VTKFilter::loadFile] Cloud has been recentered! Translation: (%.2f,%.2f,%.2f)",Pshift.x,Pshift.y,Pshift.z);

						//we save coordinates shift information
						if (applyAll && coordinatesShiftEnabled && coordinatesShift)
						{
							*coordinatesShiftEnabled = true;
							*coordinatesShift = Pshift;
						}
					}
				}

				vertices->addPoint(CCVector3(	static_cast<PointCoordinateType>(Pd[0] + Pshift.x),
												static_cast<PointCoordinateType>(Pd[1] + Pshift.y),
												static_cast<PointCoordinateType>(Pd[2] + Pshift.z)) );
			}
		//end POINTS
		}
		else if (nextline.startsWith("POLYGONS") || nextline.startsWith("TRIANGLE_STRIPS"))
		{
			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			if (parts.size() != 3)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}

			//current type name (i.e. POLYGONS or TRIANGLE_STRIPS)
			QString typeName = parts[0];
			bool isPolygon = (typeName == "POLYGONS");

			bool ok = false;
			unsigned elemCount = parts[1].toUInt(&ok);
			if (!ok)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}
			
			unsigned totalElements = parts[2].toUInt(&ok);
			if (!ok)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}

			assert(mesh);
			if (!mesh)
			{
				ccLog::Warning(QString("[VTK] We found %1 data while file is not composed of POLYDATA!").arg(typeName));
				mesh = new ccMesh(vertices); //however, we can still try to load it?
			}

			for (unsigned i=0; i<elemCount; ++i)
			{
				nextline = inFile.readLine();
				parts = nextline.split(" ",QString::SkipEmptyParts);
				if (parts.empty()) 
				{
					error = CC_FERR_MALFORMED_FILE;
					break;
				}

				unsigned vertCount = parts[0].toUInt(&ok);
				if (!ok || static_cast<int>(vertCount) >= parts.size())
				{
					error = CC_FERR_MALFORMED_FILE;
					break;
				}
				else if (vertCount < 3)
				{
					ccLog::Warning(QString("[VTK] Element #%1 of %2 data is corrupted! (not enough indexes)").arg(i).arg(typeName));
				}

				if (isPolygon && (vertCount != 3 && vertCount != 4)) //quads are easy to handle as well!
				{
					ccLog::Warning(QString("[VTK] POLYGON element #%1 has an unhandled size (> 4 vertices)").arg(i));
					continue;
				}

				//reserve mem to. store indexes
				if (indexes.size() < vertCount)
				{
					try
					{
						indexes.resize(vertCount);
					}
					catch (std::bad_alloc)
					{
						error = CC_FERR_NOT_ENOUGH_MEMORY;
						break;
					}
				}
				//decode indexes
				for (unsigned j=0; j<vertCount; ++j)
				{
					indexes[j] = parts[j+1].toUInt(&ok);
					if (!ok)
					{
						ccLog::Warning(QString("[VTK] Element #%1 of %2 data is corrupted! (invalid index value)").arg(i).arg(typeName));
						error = CC_FERR_MALFORMED_FILE;
						break;
					}
				}

				//add the triangles
				{
					assert(vertCount > 2);
					unsigned triCount = vertCount-2;
					if (mesh->size() + triCount > mesh->maxSize())
					{
						if (!mesh->reserve(mesh->size()+triCount+256)) //take some advance to avoid too many allocations
						{
							error = CC_FERR_NOT_ENOUGH_MEMORY;
							break;
						}
					}

					if (isPolygon)
					{
						//triangle or quad
						mesh->addTriangle(indexes[0],indexes[1],indexes[2]);
						if (vertCount == 4)
							mesh->addTriangle(indexes[0],indexes[2],indexes[3]);
					}
					else
					{
						//triangle strip
						for (unsigned j=0; j<triCount; ++j)
							mesh->addTriangle(indexes[j],indexes[j+1],indexes[j+2]);
					}
				}
			}
			
			if (mesh->size() != 0 && mesh->size() < mesh->maxSize())
			{
				mesh->resize(mesh->size());
			}
		//end POLYGONS or TRIANGLE_STRIPS
		}
		else if (nextline.startsWith("NORMALS"))
		{
			unsigned ptsCount = vertices->size();
			if (vertices->size() == 0)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}
			else
			{
				bool loadNormals = vertices->reserveTheNormsTable();
				if (!loadNormals)
					ccLog::Warning("[VTK] Not enough memory to load normals!");
				for (unsigned i=0; i<ptsCount; ++i)
				{
					nextline = inFile.readLine();
					if (loadNormals)
					{
						QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
						if (parts.size() != 3)
						{
							error = CC_FERR_MALFORMED_FILE;
							break;
						}
						CCVector3 N;
						for (unsigned char j=0; j<3; ++j)
						{
							bool ok;
							N.u[j] = (PointCoordinateType)parts[j].toDouble(&ok);
							if (!ok)
							{
								ccLog::Warning("[VTK] Element #%1 of NORMALS data is corrupted!",i);
								error = CC_FERR_MALFORMED_FILE;
								break;
							}
						}
						vertices->addNorm(N);
					}
				}
			}
		//end NORMALS
		}
		else if (nextline.startsWith("COLOR_SCALARS"))
		{
			unsigned ptsCount = vertices->size();
			if (vertices->size() == 0)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}
			else
			{
				bool loadRGBColors = vertices->reserveTheRGBTable();
				if (!loadRGBColors)
					ccLog::Warning("[VTK] Not enough memory to load RGB colors!");
				for (unsigned i=0; i<ptsCount; ++i)
				{
					nextline = inFile.readLine();
					if (loadRGBColors)
					{
						QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
						if (parts.size() != 3)
						{
							error = CC_FERR_MALFORMED_FILE;
							break;
						}
						colorType rgb[3];
						for (unsigned char j=0; j<3; ++j)
						{
							bool ok;
							rgb[j] = (colorType)(parts[j].toDouble(&ok) * (double)MAX_COLOR_COMP);
							if (!ok)
							{
								ccLog::Warning("[VTK] Element #%1 of COLOR_SCALARS data is corrupted!",i);
								error = CC_FERR_MALFORMED_FILE;
								break;
							}
						}
						vertices->addRGBColor(rgb);
					}
				}
			}
		//end COLOR_SCALARS
		}
		else if (nextline.startsWith("SCALARS"))
		{
			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			lastSfName = "ScalarField";
			if (parts.size() > 1)
				lastSfName = parts[1].replace("_"," ");

			//SF already exists?
			if (vertices->getScalarFieldIndexByName(qPrintable(lastSfName)) >= 0)
				lastSfName += QString(" (%1)").arg(vertices->getNumberOfScalarFields());
			//end of SCALARS
		}
		else if (nextline.startsWith("LOOKUP_TABLE") || nextline.startsWith("VECTORS"))
		{
			unsigned ptsCount = vertices->size();

			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			QString itemName = parts[0];
			if (parts.size() > 2)
			{
				bool ok = false;
				int valCount = parts[2].toUInt(&ok);
				if (ok)
					ptsCount = valCount;
			}

			bool createSF = (vertices->size() == ptsCount && vertices->size() != 0);
			if (acceptLookupTables && !createSF)
			{
				ccLog::Warning(QString("[VTK] field %1 has not the right number of points (will be ignored)").arg(itemName));
			}
			createSF &= acceptLookupTables;
			if (createSF && lastSfName.isNull())
			{
				ccLog::Warning(QString("[VTK] field %1 has no name (will be ignored)").arg(itemName));
				createSF = false;
			}

			//create scalar field?
			int newSFIndex = createSF ? vertices->addScalarField(qPrintable(lastSfName)) : -1;
			CCLib::ScalarField* sf = newSFIndex >= 0 ? vertices->getScalarField(newSFIndex) : 0;
			
			lastSfName.clear(); //name is "consumed"
				
			for (unsigned i=0; i<ptsCount; ++i)
			{
				nextline = inFile.readLine();
				if (sf) //otherwise we simply skip the line
				{
					QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
					if (parts.size() != 1)
					{
						//get rid of the scalar field :(
						vertices->deleteScalarField(newSFIndex);
						sf = 0;

						if (i == 0)
						{
							ccLog::Warning(QString("[VTK] %1 field with more than one element can't be imported as scalar fields!").arg(itemName));
						}
						else
						{
							error = CC_FERR_MALFORMED_FILE;
							break;
						}
					}
					else
					{
						bool ok;
						ScalarType d = static_cast<ScalarType>(nextline.toDouble(&ok));
						sf->setValue(i, ok ? d : NAN_VALUE);
					}
				}
			}

			if (sf)
			{
				sf->computeMinAndMax();
				vertices->setCurrentDisplayedScalarField(newSFIndex);
				vertices->showSF(true);
			}
		//end of SCALARS
		}
		else if (nextline.startsWith("POINT_DATA"))
		{
			//check that the number of 'point_data' match the number of points
			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			acceptLookupTables = false;
			if (parts.size() > 1) 
			{
				bool ok;
				unsigned dataCount = parts[1].toUInt(&ok);
				if (ok && vertices && dataCount == vertices->size())
				{
					acceptLookupTables = true;
				}
			}

			if (!acceptLookupTables)
			{
				ccLog::Warning("[VTK] The number of 'POINT_DATA' doesn't match the number of loaded points... lookup tables will be ignored");
			}
		}
		else //unhandled property (CELLS, CELL_TYPES, etc.)
		{
			QStringList parts = nextline.split(" ",QString::SkipEmptyParts);
			if (parts.size() < 2) 
			{
				ccLog::Warning(QString("[VTK] Unhandled element: %1").arg(parts[0]));
				error = CC_FERR_MALFORMED_FILE;
				break;
			}

			bool ok;
			unsigned elements = parts[1].toUInt(&ok);
			if (!ok)
			{
				error = CC_FERR_MALFORMED_FILE;
				break;
			}

			for (unsigned i=0; i<elements; ++i)
			{
				inFile.readLine(); //ignore
			}
		//end unhandled property
		}

		if (error != CC_FERR_NO_ERROR)
			break;
	}

	if (error != CC_FERR_NO_ERROR)
	{
		if (mesh)
			delete mesh;
		if (vertices)
			delete vertices;
		return CC_FERR_MALFORMED_FILE;
	}

	file.close();

	if (mesh && mesh->size() == 0)
	{
		delete mesh;
		mesh = 0;
	}

	if (vertices->size() == 0)
	{
		delete vertices;
		return CC_FERR_NO_LOAD;
	}

	if (mesh)
	{
		container.addChild(mesh);
		mesh->setVisible(true);

		mesh->addChild(vertices);
		vertices->setVisible(false);
		vertices->setEnabled(false);
		vertices->setName("Vertices");
		vertices->setLocked(true); //DGM: no need to lock it as it is only used by one mesh!

		//DGM: normals can be per-vertex or per-triangle so it's better to let the user do it himself later
		//Moreover it's not always good idea if the user doesn't want normals (especially in ccViewer!)
		//if (!mesh->hasNormals())
		//	mesh->computeNormals();
		ccLog::Warning("[VTK] Mesh has no normal! You can manually compute them (select it then call \"Edit > Normals > Compute\")");
		mesh->showNormals(mesh->hasNormals());
		if (vertices->hasScalarFields())
		{
			vertices->setCurrentDisplayedScalarField(0);
			mesh->showSF(true);
		}
		if (vertices->hasColors())
			mesh->showColors(true);
	}
	else
	{
		container.addChild(vertices);
		vertices->setVisible(true);
		if (vertices->hasNormals())
			vertices->showNormals(true);
		if (vertices->hasScalarFields())
		{
			vertices->setCurrentDisplayedScalarField(0);
			vertices->showSF(true);
		}
		if (vertices->hasColors())
			vertices->showColors(true);
	}

	return CC_FERR_NO_ERROR;
}