C++ ccHObject::getChild方法代码示例

//.........这里部分代码省略.........
							{
								int cMin = (int)field.sf->getMin();
								int cMax = (int)field.sf->getMax();
								field.sf->setColorRampSteps(std::min<int>(cMax-cMin+1,256));
								//classifSF->setMinSaturation(cMin);
							}
							else if (field.type == LAS_INTENSITY)
							{
								field.sf->setColorScale(ccColorScalesManager::GetDefaultScale(ccColorScalesManager::GREY));
							}

							int sfIndex = loadedCloud->addScalarField(field.sf);
							if (!loadedCloud->hasDisplayedScalarField())
							{
								loadedCloud->setCurrentDisplayedScalarField(sfIndex);
								loadedCloud->showSF(!thisChunkHasColors);
							}
							field.sf->release();
							field.sf=0;
						}
						else
						{
							ccLog::Warning(QString("[LAS FILE] All '%1' values were the same (%2)! We ignored them...").arg(LAS_FIELD_NAMES[field.type]).arg(field.firstValue));
						}

						fieldsToLoad.pop_back();
					}

					//if we have reserved too much memory
					if (loadedCloud->size() < loadedCloud->capacity())
						loadedCloud->resize(loadedCloud->size());

					QString chunkName("unnamed - Cloud");
					unsigned n = container.getChildrenNumber();
					if (n!=0) //if we have more than one cloud, we append an index
					{
						if (n==1)  //we must also update the first one!
							container.getChild(0)->setName(chunkName+QString(" #1"));
						chunkName += QString(" #%1").arg(n+1);
					}
					loadedCloud->setName(chunkName);

					container.addChild(loadedCloud);
					loadedCloud=0;
				}
				else
				{
					//empty cloud?!
					delete loadedCloud;
					loadedCloud=0;
				}
			}

			if (!newPointAvailable)
				break; //end of the file (or cancel requested)

			//otherwise, we must create a new cloud
			fileChunkPos = pointsRead;
			fileChunkSize = std::min(nbOfPoints-pointsRead,CC_MAX_NUMBER_OF_POINTS_PER_CLOUD);
			loadedCloud = new ccPointCloud();
			if (!loadedCloud->reserveThePointsTable(fileChunkSize))
			{
				ccLog::Warning("[LASFilter::loadFile] Not enough memory!");
				delete loadedCloud;
				delete reader;
				ifs.close();

//.........这里部分代码省略.........
						}
						else
						{
							ccLog::Warning(QString("[LAS FILE] All timestamps were the same (%1)! We ignored them...").arg(firstTime));
						}
					}

					if (hasReturnNumber)
					{
						if (returnNumberSF)
						{
							returnNumberSF->computeMinAndMax();
							int rMin = (int)returnNumberSF->getMin();
							int rMax = (int)returnNumberSF->getMax();
							returnNumberSF->setColorRampSteps(rMax-rMin);
							int sfIndex = loadedCloud->addScalarField(returnNumberSF);
							if (!loadedCloud->hasDisplayedScalarField())
							{
								loadedCloud->setCurrentDisplayedScalarField(sfIndex);
								loadedCloud->showSF(!thisChunkHasColors);
							}
						}
						else
						{
							ccLog::Warning(QString("[LAS FILE] All return numbers were the same (%1)! We ignored them...").arg(firstReturnNumber));
						}
					}

					//if we have reserved too much memory
					if (loadedCloud->size() < loadedCloud->capacity())
						loadedCloud->resize(loadedCloud->size());

					QString chunkName("unnamed - Cloud");
					unsigned n = container.getChildrenNumber();
					if (n!=0) //if we have more than one cloud, we append an index
					{
						if (n==1)  //we must also update the first one!
							container.getChild(0)->setName(chunkName+QString(" #1"));
						chunkName += QString(" #%1").arg(n+1);
					}
					loadedCloud->setName(chunkName);

					container.addChild(loadedCloud);
					loadedCloud=0;
				}
				else
				{
					//empty cloud?!
					delete loadedCloud;
					loadedCloud=0;
				}

				if (classifSF)
					classifSF->release();
				classifSF=0;
				if (intensitySF)
					intensitySF->release();
				intensitySF=0;
				if (returnNumberSF)
					returnNumberSF->release();
				returnNumberSF=0;
				if (timeSF)
					timeSF->release();
				timeSF=0;
			}

CC_FILE_ERROR PTXFilter::loadFile(	QString filename,
									ccHObject& container,
									LoadParameters& parameters)
{
	//open ASCII file for reading
	QFile file(filename);
	if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
	{
		return CC_FERR_READING;
	}

	QTextStream inFile(&file);

	CCVector3d PshiftTrans(0,0,0);
	CCVector3d PshiftCloud(0,0,0);

	CC_FILE_ERROR result = CC_FERR_NO_LOAD;
	ScalarType minIntensity = 0;
	ScalarType maxIntensity = 0;

	//progress dialog
	ccProgressDialog pdlg(true, parameters.parentWidget);
	pdlg.setMethodTitle(QObject::tr("Loading PTX file"));
	pdlg.setAutoClose(false);

	//progress dialog (for normals computation)
	ccProgressDialog normalsProgressDlg(true, parameters.parentWidget);
	normalsProgressDlg.setAutoClose(false);

	for (unsigned cloudIndex = 0; result == CC_FERR_NO_ERROR || result == CC_FERR_NO_LOAD; cloudIndex++)
	{
		unsigned width = 0, height = 0;
		ccGLMatrixd sensorTransD, cloudTransD;

		//read header
		{
			QString line = inFile.readLine();
			if (line.isNull() && container.getChildrenNumber() != 0) //end of file?
				break;

			//read the width (number of columns) and the height (number of rows) on the two first lines
			//(DGM: we transpose the matrix right away)
			bool ok;
			height = line.toUInt(&ok);
			if (!ok)
				return CC_FERR_MALFORMED_FILE;
			line = inFile.readLine();
			width = line.toUInt(&ok);
			if (!ok)
				return CC_FERR_MALFORMED_FILE;

			ccLog::Print(QString("[PTX] Scan #%1 - grid size: %2 x %3").arg(cloudIndex+1).arg(height).arg(width));

			//read sensor transformation matrix
			for (int i=0; i<4; ++i)
			{
				line = inFile.readLine();
				QStringList tokens = line.split(" ",QString::SkipEmptyParts);
				if (tokens.size() != 3)
					return CC_FERR_MALFORMED_FILE;

				double* colDest = 0;
				if (i == 0)
				{
					//Translation
					colDest = sensorTransD.getTranslation();
				}
				else
				{
					//X, Y and Z axis
					colDest = sensorTransD.getColumn(i-1);
				}

				for (int j=0; j<3; ++j)
				{
					assert(colDest);
					colDest[j] = tokens[j].toDouble(&ok);
					if (!ok)
						return CC_FERR_MALFORMED_FILE;
				}
			}
			//make the transform a little bit cleaner (necessary as it's read from ASCII!)
			CleanMatrix(sensorTransD);

			//read cloud transformation matrix
			for (int i=0; i<4; ++i)
			{
				line = inFile.readLine();
				QStringList tokens = line.split(" ",QString::SkipEmptyParts);
				if (tokens.size() != 4)
					return CC_FERR_MALFORMED_FILE;

				double* col = cloudTransD.getColumn(i);
				for (int j=0; j<4; ++j)
				{
					col[j] = tokens[j].toDouble(&ok);
					if (!ok)
						return CC_FERR_MALFORMED_FILE;
				}
			}
//.........这里部分代码省略.........