C++ GenericIndexedCloudPersist::size方法代码示例

//helper: computes a facet horizontal and vertical extensions
void ComputeFacetExtensions(CCVector3& N, ccPolyline* facetContour, double& horizExt, double& vertExt)
{
	//horizontal and vertical extensions
	horizExt = vertExt = 0;
	
	CCLib::GenericIndexedCloudPersist* vertCloud = facetContour->getAssociatedCloud();
	if (vertCloud)
	{
		//oriRotMat.applyRotation(N); //DGM: oriRotMat is only for display!
		//we assume that at this point the "up" direction is always (0,0,1)
		CCVector3 Xf(1,0,0), Yf(0,1,0);
		//we get the horizontal vector on the plane
		CCVector3 D = CCVector3(0,0,1).cross(N);
		if (D.norm2() > ZERO_TOLERANCE) //otherwise the facet is horizontal!
		{
			Yf = D;
			Yf.normalize();
			Xf = N.cross(Yf);
		}

		const CCVector3* G = CCLib::Neighbourhood(vertCloud).getGravityCenter();

		ccBBox box;
		for (unsigned i=0; i<vertCloud->size(); ++i)
		{
			const CCVector3 P = *(vertCloud->getPoint(i)) - *G;
			CCVector3 p( P.dot(Xf), P.dot(Yf), 0 );
			box.add(p);
		}

		vertExt = box.getDiagVec().x;
		horizExt = box.getDiagVec().y;
	}
}

void TestShpFilter::readPolygonFile(const QString &filePath) const
{
	const unsigned expectedNumPoints = 14; // File has 15 points but as its a polygon, CC will keep the 14 first pts
	CCVector3d bbMin(-626146.0444521683, 5219675.646154184, 0);
	CCVector3d shift = ccGlobalShiftManager::BestShift(bbMin);
	bool shiftEnabled = true;

	ccHObject container;
	FileIOFilter::LoadParameters params;
	params.alwaysDisplayLoadDialog = false;
	params.shiftHandlingMode = ccGlobalShiftManager::Mode::NO_DIALOG;
	params.coordinatesShiftEnabled = &shiftEnabled;
	params.coordinatesShift = &shift;
	params.preserveShiftOnSave = true;
	ShpFilter filter;

	CC_FILE_ERROR error = filter.loadFile(filePath, container, params);
	QVERIFY(error == CC_FERR_NO_ERROR);

	QVERIFY(container.getChildrenNumber() == 1);
	ccHObject *item = container.getFirstChild();
	QVERIFY(item->getClassID() == CC_TYPES::POLY_LINE);

	auto *poly = static_cast<ccPolyline *>(item);
	QVERIFY(poly->size() == expectedNumPoints);
	QVERIFY(!poly->isScalarFieldEnabled());
	QVERIFY(!poly->is2DMode());
	QVERIFY(poly->isClosed());

	CCLib::GenericIndexedCloudPersist *vertices = poly->getAssociatedCloud();
	QVERIFY(vertices->size() == expectedNumPoints);

	std::array<double, 14> expectedXs{-626146.0444521683, -187004.53123683017, -59884.61951660062, 169316.43343351,
	                                  180872.78904444003, 300288.4636907161, 914701.3703384919, 752912.3917854726,
	                                  880032.303505702, 749060.273248496, 473633.79785466543, 375404.77516176086,
	                                  -212043.3017271784, -187004.53123683017};
	std::array<double, 14> expectedYs{6182705.280398346, 6409980.274079968, 6383015.444321131, 6488948.704087989,
	                                  6606438.319465778, 6650737.682641009, 6236634.939916019, 5878387.91597719,
	                                  5391094.921049644, 5271679.246403368, 5352573.735679878, 5219675.646154184,
	                                  5348721.617142901, 5789789.189626727};

	for (unsigned i(0); i < expectedNumPoints; ++i)
	{
		const CCVector3 *p = vertices->getPoint(i);
		QCOMPARE(p->x, static_cast<ScalarType >(expectedXs[i] + shift.x));
		QCOMPARE(p->y, static_cast<ScalarType >(expectedYs[i] + shift.y));
		QCOMPARE(p->z, 0.0);
	}
}

//.........这里部分代码省略.........
		oldDataSfIdx = pc->getCurrentInScalarFieldIndex();
		dataSfIdx = pc->getScalarFieldIndexByName(REGISTRATION_DISTS_SF);
		if (dataSfIdx < 0)
			dataSfIdx = pc->addScalarField(REGISTRATION_DISTS_SF);
		if (dataSfIdx >= 0)
			pc->setCurrentScalarField(dataSfIdx);
		else
		{
			ccLog::Error("[ICP] Couldn't create temporary scalar field! Not enough memory?");
			return false;
		}
	}
	else
	{
		if (!dataCloud->enableScalarField())
		{
			ccLog::Error("[ICP] Couldn't create temporary scalar field! Not enough memory?");
			return false;
		}
	}

	//add a 'safety' margin to input ratio
	static double s_overlapMarginRatio = 0.2;
	finalOverlapRatio = std::max(finalOverlapRatio, 0.01); //1% minimum
	//do we need to reduce the input point cloud (so as to be close
	//to the theoretical number of overlapping points - but not too
	//low so as we are not registered yet ;)
	if (finalOverlapRatio < 1.0 - s_overlapMarginRatio)
	{
		//DGM we can now use 'approximate' distances as SAITO algorithm is exact (but with a coarse resolution)
		//level = 7 if < 1.000.000
		//level = 8 if < 10.000.000
		//level = 9 if > 10.000.000
		int gridLevel = static_cast<int>(floor(log10(static_cast<double>(std::max(dataCloud->size(), modelCloud->size()))))) + 2;
		    gridLevel = std::min(std::max(gridLevel, 7), 9);
		int result = -1;
		if (modelMesh)
		{
			CCLib::DistanceComputationTools::Cloud2MeshDistanceComputationParams c2mParams;
			c2mParams.octreeLevel = gridLevel;
			c2mParams.maxSearchDist = 0;
			c2mParams.useDistanceMap = true;
			c2mParams.signedDistances = false;
			c2mParams.flipNormals = false;
			c2mParams.multiThread = false;
			result = CCLib::DistanceComputationTools::computeCloud2MeshDistance(dataCloud, modelMesh, c2mParams, progressDlg.data());
		}
		else
		{
			result = CCLib::DistanceComputationTools::computeApproxCloud2CloudDistance(	dataCloud,
																						modelCloud,
																						gridLevel,
																						-1,
																						progressDlg.data());
		}

		if (result < 0)
		{
			ccLog::Error("Failed to determine the max (overlap) distance (not enough memory?)");
			return false;
		}

		//determine the max distance that (roughly) corresponds to the input overlap ratio
		ScalarType maxSearchDist = 0;
		{
			unsigned count = dataCloud->size();

bool DistanceMapGenerationTool::ComputeSurfacesAndVolumes(	const QSharedPointer<Map>& map,
															ccPolyline* profile,
															Measures& surface,
															Measures& volume)
{
	if (!map || !profile)
		//invalid input!
		return false;

	CCLib::GenericIndexedCloudPersist* vertices = profile->getAssociatedCloud();
	unsigned vertexCount = vertices ? vertices->size() : 0;
	if (vertexCount < 2)
	{
		//invalid profile!
		return false;
	}

	const ccPointCloud* pcVertices = dynamic_cast<ccPointCloud*>(profile->getAssociatedCloud());
	if (!pcVertices)
		return false;

	//surface measures
	surface = Measures();
	//volume measures
	volume = Measures();

	//theoretical surface and volumes
	{
		double surfaceProd = 0.0;
		double volumeProd = 0.0;
		const double yMax = map->yMin + map->yStep * (double)map->ySteps;
		for (unsigned i=1; i<pcVertices->size(); ++i)
		{
			const CCVector3* P0 = pcVertices->getPoint(i-1);
			const CCVector3* P1 = pcVertices->getPoint(i);

			//polyline: X = radius, Y = height
			double r0 = P0->x;
			double y0 = P0->y;
			double r1 = P1->x;
			double y1 = P1->y;
			
			//without loss of generality ;)
			if (y0 > y1)
			{
				std::swap(y0,y1);
				std::swap(r0,r1);
			}

			//segment is totally outside the map?
			if (y1 < map->yMin || y0 > yMax)
			{
				//we skip it
				continue;
			}

			if (y0 < map->yMin)
			{
				//interpolate r0 @ map->yMin
				double alpha = (map->yMin - y0)/(y1 - y0);
				assert(alpha >= 0.0 && alpha <= 1.0);
				r0 = r0 + alpha * (r1 - r0);
				y0 = map->yMin;
			}
			else if (y1 > yMax)
			{
				//interpolate r1 @ map->yMax
				double alpha = (yMax - y0)/(y1 - y0);
				assert(alpha >= 0.0 && alpha <= 1.0);
				r1 = r0 + alpha * (r1 - r0);
				y1 = yMax;
			}

			//product for truncated cone surface (see http://en.wikipedia.org/wiki/Frustum)
			double segmentLength = sqrt((r1-r0)*(r1-r0) + (y1-y0)*(y1-y0));
			surfaceProd += (r0 + r1) * segmentLength;

			//product for truncated cone volume (see http://en.wikipedia.org/wiki/Frustum)
			volumeProd += (y1 - y0) * (r0*r0 + r1*r1 + r0*r1);
		}

		surface.theoretical = M_PI * surfaceProd;
		volume.theoretical  = M_PI / 3.0 * volumeProd;
	}

	int revolDim = GetPoylineRevolDim(profile);
	if (revolDim < 0)
		return false;

	//constant factors
	const double surfPart = map->xStep / 2.0;				//perimeter of a portion of circle of angle alpha = alpha * r (* height to get the external surface)
	const double volPart = map->yStep * map->xStep / 6.0;	//area of a portion of circle of angle alpha = alpha/2 * r^2 (* height to get the volume)

	const MapCell* cell = &map->at(0);
	//for each row
	for (unsigned j=0; j<map->ySteps; ++j)
	{
		//corresponding heights
		double height1 = map->yMin + (double)j * map->yStep;
		double height2 = height1 + map->yStep;
//.........这里部分代码省略.........

bool DistanceMapGenerationTool::ComputeRadialDist(	ccPointCloud* cloud,
													ccPolyline* profile,
													bool storeRadiiAsSF/*=false*/,
													ccMainAppInterface* app/*=0*/)
{
	//check input cloud and profile/polyline
	if (!cloud || !profile)
	{
		if (app)
			app->dispToConsole(QString("Internal error: invalid input parameters"),ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return false;
	}
	assert(cloud && profile);

	//number of vertices for the profile
	CCLib::GenericIndexedCloudPersist* vertices = profile->getAssociatedCloud();
	unsigned vertexCount = vertices->size();
	if (vertexCount < 2)
	{
		if (app)
			app->dispToConsole(QString("Invalid polyline (not enough vertices)"),ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return false;
	}

	//profile meta-data
	ProfileMetaData profileDesc;
	if (!GetPoylineMetaData(profile, profileDesc))
	{
		if (app)
			app->dispToConsole(QString("Invalid polyline (bad or missing meta-data)"),ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return false;
	}

	//reserve a new scalar field (or take the old one if it already exists)
	int sfIdx = cloud->getScalarFieldIndexByName(RADIAL_DIST_SF_NAME);
	if (sfIdx < 0)
		sfIdx = cloud->addScalarField(RADIAL_DIST_SF_NAME);
	if (sfIdx < 0)
	{
		if (app)
			app->dispToConsole(QString("Failed to allocate a new scalar field for computing distances! Try to free some memory ..."),ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return false;
	}
	ccScalarField* sf = static_cast<ccScalarField*>(cloud->getScalarField(sfIdx));
	unsigned pointCount = cloud->size();
	sf->resize(pointCount); //should always be ok
	assert(sf);

	ccScalarField* radiiSf = 0;
	if (storeRadiiAsSF)
	{
		int sfIdxRadii = cloud->getScalarFieldIndexByName(RADII_SF_NAME);
		if (sfIdxRadii < 0)
			sfIdxRadii = cloud->addScalarField(RADII_SF_NAME);
		if (sfIdxRadii < 0)
		{
			if (app)
				app->dispToConsole(QString("Failed to allocate a new scalar field for storing radii! You should try to free some memory ..."),ccMainAppInterface::WRN_CONSOLE_MESSAGE);
			//return false;
		}
		else
		{
			radiiSf = static_cast<ccScalarField*>(cloud->getScalarField(sfIdxRadii));
			radiiSf->resize(pointCount); //should always be ok
		}
	}

	bool success = true;

	//now compute the distance between the cloud and the (implicit) surface of revolution
	{
		ccGLMatrix cloudToSurface = profileDesc.computeProfileToSurfaceTrans();

		//we deduce the horizontal dimensions from the revolution axis
		const unsigned char dim1 = static_cast<unsigned char>(profileDesc.revolDim < 2 ? profileDesc.revolDim+1 : 0);
		const unsigned char dim2 = (dim1 < 2 ? dim1+1 : 0);

		ccProgressDialog dlg(true, app ? app->getMainWindow() : 0);
		dlg.setMethodTitle("Cloud to profile radial distance");
		dlg.setInfo(qPrintable(QString("Polyline: %1 vertices\nCloud: %2 points").arg(vertexCount).arg(pointCount)));
		dlg.start();
		CCLib::NormalizedProgress nProgress(static_cast<CCLib::GenericProgressCallback*>(&dlg),pointCount);

		for (unsigned i=0; i<pointCount; ++i)
		{
			const CCVector3* P = cloud->getPoint(i);

			//relative point position
			CCVector3 Prel = cloudToSurface * (*P);

			//deduce point height and radius (i.e. in profile 2D coordinate system)
			double height = Prel.u[profileDesc.revolDim] - profileDesc.heightShift;
			//TODO FIXME: we assume the surface of revolution is smooth!
			double radius = sqrt(Prel.u[dim1]*Prel.u[dim1] + Prel.u[dim2]*Prel.u[dim2]);

			if (radiiSf)
			{
				ScalarType radiusVal = static_cast<ScalarType>(radius);
				radiiSf->setValue(i,radiusVal);
			}
//.........这里部分代码省略.........

ccPointCloud* DistanceMapGenerationTool::ConvertMapToCloud(	const QSharedPointer<Map>& map,
															ccPolyline* profile,
															double baseRadius/*=1.0*/,
															bool keepNaNPoints/*=true*/)
{
	if (!map || !profile)
		return 0;

	unsigned count = map->ySteps * map->xSteps;

	ccPointCloud* cloud = new ccPointCloud("map");
	ccScalarField* sf = new ccScalarField("values");
	if (!cloud->reserve(count) || !sf->reserve(count))
	{
		//not enough memory
		delete cloud;
		sf->release();
		return 0;
	}

	//number of vertices
	CCLib::GenericIndexedCloudPersist* polyVertices = profile->getAssociatedCloud();
	unsigned polyVertCount = polyVertices->size();
	if (polyVertCount < 2)
		return 0;

	//profile meta-data (we only need the height shift)
	PointCoordinateType heightShift = 0;
	GetPolylineHeightShift(profile, heightShift);

	const double xStep = baseRadius * (2.0*M_PI) / static_cast<double>(map->xSteps);

	const MapCell* cell = &map->at(0);
	for (unsigned j=0; j<map->ySteps; ++j)
	{
		CCVector3 P(0,static_cast<PointCoordinateType>(map->yMin + (static_cast<double>(j) + 0.5) * map->yStep),0);

		//for each column
		for (unsigned i=0; i<map->xSteps; ++i, ++cell)
		{
			if (keepNaNPoints || cell->count != 0)
			{
				P.x = static_cast<PointCoordinateType>(map->xMin + (static_cast<double>(i) + 0.5) * xStep);

				//search nearest "segment" in polyline
				for (unsigned k=1; k<polyVertCount; ++k)
				{
					const CCVector3* A = polyVertices->getPoint(k-1);
					const CCVector3* B = polyVertices->getPoint(k);

					double alpha = (P.y - heightShift - A->y)/(B->y - A->y);
					if (alpha >= 0.0 && alpha <= 1.0)
					{
						//we deduce the right radius by linear interpolation
						double radius_th = A->x + alpha * (B->x - A->x);
						//TODO: we take the first radius (even if there are other segments at
						//this particular height, because we can't guess which one is the 'right' one!
						P.z = static_cast<PointCoordinateType>(radius_th);
						break;
					}
				}

				cloud->addPoint(P);

				ScalarType val = cell->count ? static_cast<ScalarType>(cell->value) : NAN_VALUE;
				sf->addElement(val);
			}
		}
	}

	sf->computeMinAndMax();
	int sfIdx = cloud->addScalarField(sf);
	cloud->setCurrentDisplayedScalarField(sfIdx);
	cloud->showSF(true);
	cloud->resize(cloud->size()); //if we have skipped NaN values!

	return cloud;
}

ccMesh* DistanceMapGenerationTool::ConvertProfileToMesh(ccPolyline* profile,
														const ccGLMatrix& cloudToSurface,
														bool counterclockwise,
														unsigned angularSteps/*=36*/,
														QImage mapTexture/*=QImage()*/)
{
	if (!profile || angularSteps < 3)
	{
		return 0;
	}

	//profile vertices
	CCLib::GenericIndexedCloudPersist* profileVertices = profile->getAssociatedCloud();
	unsigned profVertCount = profileVertices->size();
	if (profVertCount < 2)
	{
		return 0;
	}

	//profile meta-data
	ProfileMetaData profileDesc;
	if (!GetPoylineMetaData(profile, profileDesc))
	{
		assert(false);
		return 0;
	}

	unsigned char Z = static_cast<unsigned char>(profileDesc.revolDim);
	//we deduce the 2 other ('horizontal') dimensions
	const unsigned char X = (Z < 2 ? Z+1 : 0);
	const unsigned char Y = (X < 2 ? X+1 : 0);

	unsigned meshVertCount = profVertCount * angularSteps;
	unsigned meshFaceCount = (profVertCount-1) * angularSteps * 2;
	ccPointCloud* cloud = new ccPointCloud("vertices");
	ccMesh* mesh = new ccMesh(cloud);
	if (!cloud->reserve(meshVertCount) || !mesh->reserve(meshFaceCount))
	{
		//not enough memory
		delete cloud;
		delete mesh;
		return 0;
	}

	ccGLMatrix surfaceToCloud = cloudToSurface.inverse();

	//create vertices
	{
		double cwSign = (counterclockwise ? -1.0 : 1.0);
		for (unsigned j=0; j<angularSteps; ++j)
		{
			double angle_rad = static_cast<double>(j)/angularSteps * (2*M_PI);

			CCVector3d N(sin(angle_rad) * cwSign,
						 cos(angle_rad),
						 0);

			for (unsigned i=0; i<profVertCount; ++i)
			{
				const CCVector3* P = profileVertices->getPoint(i);
				double radius = static_cast<double>(P->x);

				CCVector3 Pxyz;
				Pxyz.u[X] = static_cast<PointCoordinateType>(radius * N.x);
				Pxyz.u[Y] = static_cast<PointCoordinateType>(radius * N.y);
				Pxyz.u[Z] = P->y + profileDesc.heightShift;

				surfaceToCloud.apply(Pxyz);

				cloud->addPoint(Pxyz);
			}
		}
		mesh->addChild(cloud);
	}

	PointCoordinateType h0 = profileVertices->getPoint(0)->y;
	PointCoordinateType dH = profileVertices->getPoint(profVertCount-1)->y - h0;
	bool invertedHeight = (dH < 0);

	//create facets
	{
		for (unsigned j=0; j<angularSteps; ++j)
		{
			unsigned nextJ = ((j+1) % angularSteps);
			for (unsigned i=0; i+1<profVertCount; ++i)
			{
				unsigned vertA = j*profVertCount+i;
				unsigned vertB = nextJ*profVertCount+i;
				unsigned vertC = vertB+1;
				unsigned vertD = vertA+1;

				if (invertedHeight)
				{
					mesh->addTriangle(vertB,vertC,vertD);
					mesh->addTriangle(vertB,vertD,vertA);
				}
				else
				{
					mesh->addTriangle(vertB,vertD,vertC);
					mesh->addTriangle(vertB,vertA,vertD);
//.........这里部分代码省略.........

void ccGraphicalSegmentationTool::doExportSegmentationPolyline()
{
	MainWindow* mainWindow = MainWindow::TheInstance();
	if (mainWindow && m_segmentationPoly)
	{
		QMessageBox messageBox(0);
		
		messageBox.setWindowTitle("Choose export type");
		messageBox.setText("Export polyline in:\n - 2D (with coordinates relative to the screen)\n - 3D (with coordinates relative to the segmented entities)");
		QPushButton* button2D = new QPushButton("2D");
		QPushButton* button3D = new QPushButton("3D");
		messageBox.addButton(button2D,QMessageBox::AcceptRole);
		messageBox.addButton(button3D,QMessageBox::AcceptRole);
		messageBox.addButton(QMessageBox::Cancel);
		messageBox.setDefaultButton(button3D);
		messageBox.exec();
		if (messageBox.clickedButton() == messageBox.button(QMessageBox::Cancel))
		{
			//process cancelled by user
			return;
		}

		ccPolyline* poly = new ccPolyline(*m_segmentationPoly);

		//if we export the polyline in 3D, we must project its vertices
		bool mode2D = (messageBox.clickedButton() == button2D);
		if (!mode2D)
		{
			//get current display parameters
			const double* MM = m_associatedWin->getModelViewMatd(); //viewMat
			const double* MP = m_associatedWin->getProjectionMatd(); //projMat
			const GLdouble half_w = static_cast<GLdouble>(m_associatedWin->width())/2;
			const GLdouble half_h = static_cast<GLdouble>(m_associatedWin->height())/2;
			int VP[4];
			m_associatedWin->getViewportArray(VP);

			//project the 2D polyline in 3D
			CCLib::GenericIndexedCloudPersist* vertices = poly->getAssociatedCloud();
			ccPointCloud* verticesPC = dynamic_cast<ccPointCloud*>(vertices);
			if (verticesPC)
			{
				for (unsigned i=0; i<vertices->size(); ++i)
				{
					CCVector3* Pscreen = const_cast<CCVector3*>(verticesPC->getPoint(i));
					GLdouble xp,yp,zp;
					gluUnProject(half_w+Pscreen->x,half_h+Pscreen->y,0/*Pscreen->z*/,MM,MP,VP,&xp,&yp,&zp);
					Pscreen->x = static_cast<PointCoordinateType>(xp);
					Pscreen->y = static_cast<PointCoordinateType>(yp);
					Pscreen->z = static_cast<PointCoordinateType>(zp);
				}
				verticesPC->invalidateBoundingBox();
			}
			else
			{
				assert(false);
				ccLog::Warning("[Segmentation] Failed to convert 2D polyline to 3D! (internal inconsistency)");
				mode2D = false;
			}
		}
		
		poly->setName(QString("Segmentation polyline #%1").arg(++s_polylineExportCount));
		poly->setEnabled(false); //we don't want it to appear while the segmentation mode is enabled! (anyway it's 2D only...)
		poly->set2DMode(mode2D);
		poly->setColor(ccColor::yellow); //we use a different color so as to differentiate them from the active polyline!

		mainWindow->addToDB(poly);
		ccLog::Print(QString("[Segmentation] Polyline exported (%1 vertices)").arg(poly->size()));
	}
}

void ccGraphicalSegmentationTool::doActionUseExistingPolyline()
{
	MainWindow* mainWindow = MainWindow::TheInstance();
	if (mainWindow)
	{
		ccHObject* root = mainWindow->dbRootObject();
		ccHObject::Container polylines;
		if (root)
		{
			root->filterChildren(polylines,true,CC_TYPES::POLY_LINE);
		}

		if (!polylines.empty())
		{
			ccEntityPickerDlg epDlg(polylines,0,this);
			if (!epDlg.exec())
				return;

			int index = epDlg.getSelectedIndex();
			assert(index >= 0 && index < static_cast<int>(polylines.size()));
			assert(polylines[index]->isA(CC_TYPES::POLY_LINE));
			ccPolyline* poly = static_cast<ccPolyline*>(polylines[index]);
			CCLib::GenericIndexedCloudPersist* vertices = poly->getAssociatedCloud();
			bool mode3D = !poly->is2DMode();

			//viewing parameters (for conversion from 3D to 2D)
			const double* MM = m_associatedWin->getModelViewMatd(); //viewMat
			const double* MP = m_associatedWin->getProjectionMatd(); //projMat
			const GLdouble half_w = static_cast<GLdouble>(m_associatedWin->width())/2;
			const GLdouble half_h = static_cast<GLdouble>(m_associatedWin->height())/2;
			int VP[4];
			m_associatedWin->getViewportArray(VP);

			//force polygonal selection mode
			doSetPolylineSelection();
			m_segmentationPoly->clear();
			m_polyVertices->clear();

			//duplicate polyline 'a minima' (only points and indexes + closed state)
			if (	m_polyVertices->reserve(vertices->size())
				&&	m_segmentationPoly->reserve(poly->size()))
			{
				for (unsigned i=0; i<vertices->size(); ++i)
				{
					CCVector3 P = *vertices->getPoint(i);
					if (mode3D)
					{
						GLdouble xp,yp,zp;
						gluProject(P.x,P.y,P.z,MM,MP,VP,&xp,&yp,&zp);

						P.x = static_cast<PointCoordinateType>(xp-half_w);
						P.y = static_cast<PointCoordinateType>(yp-half_h);
						P.z = 0;
					}
					m_polyVertices->addPoint(P);
				}
				for (unsigned j=0; j<poly->size(); ++j)
					m_segmentationPoly->addPointIndex(poly->getPointGlobalIndex(j));
				
				m_segmentationPoly->setClosed(poly->isClosed());
				if (m_segmentationPoly->isClosed())
				{
					//stop
					m_state &= (~RUNNING);
				}

				if (m_associatedWin)
					m_associatedWin->updateGL();
			}
			else
			{
				ccLog::Error("Not enough memory!");
			}
		}
		else
		{
			ccLog::Error("No polyline in DB!");
		}
	}
}

void qFacets::exportFacets()
{
	assert(m_app);
	if (!m_app)
		return;

	//disclaimer accepted?
	if (!ShowDisclaimer(m_app))
		return;

	//Retrive selected facets
	FacetSet facets;
	getFacetsInCurrentSelection(facets);

	if (facets.empty())
	{
		m_app->dispToConsole("Couldn't find any facet in the current selection!",ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return;
	}
	assert(!facets.empty());

	FacetsExportDlg fDlg(FacetsExportDlg::SHAPE_FILE_IO,m_app->getMainWindow());

	//persistent settings (default export path)
	QSettings settings;
	settings.beginGroup("qFacets");
	QString facetsSavePath = settings.value("exportPath",QApplication::applicationDirPath()).toString();
	fDlg.destinationPathLineEdit->setText(facetsSavePath + QString("/facets.shp"));

	if (!fDlg.exec())
		return;

	QString filename = fDlg.destinationPathLineEdit->text();

	//save current export path to persistent settings
	settings.setValue("exportPath",QFileInfo(filename).absolutePath());

	if (QFile(filename).exists())
	{
		//if the file already exists, ask for confirmation!
		if (QMessageBox::warning(m_app->getMainWindow(),"File already exists!","File already exists! Are you sure you want to overwrite it?",QMessageBox::Yes,QMessageBox::No) == QMessageBox::No)
			return;
	}

	//fields (shapefile) - WARNING names must not have more than 10 chars!
	ShpFilter::IntegerField  facetIndex("index");
	ShpFilter::DoubleField   facetSurface("surface");
	ShpFilter::DoubleField   facetRMS("rms");
	ShpFilter::IntegerField  facetDipDir("dip_dir");
	ShpFilter::IntegerField  facetDip("dip");
	ShpFilter::IntegerField  familyIndex("family_ind");
	ShpFilter::IntegerField  subfamilyIndex("subfam_ind");
	ShpFilter::DoubleField3D facetNormal("normal");
	ShpFilter::DoubleField3D facetBarycenter("center");
	ShpFilter::DoubleField   horizExtension("horiz_ext");
	ShpFilter::DoubleField   vertExtension("vert_ext");
	ShpFilter::DoubleField   surfaceExtension("surf_ext");

	size_t facetCount = facets.size();
	assert(facetCount != 0);
	try
	{
		facetIndex.values.reserve(facetCount);
		facetSurface.values.reserve(facetCount);
		facetRMS.values.reserve(facetCount);
		facetDipDir.values.reserve(facetCount);
		facetDip.values.reserve(facetCount);
		familyIndex.values.reserve(facetCount);
		subfamilyIndex.values.reserve(facetCount);
		facetNormal.values.reserve(facetCount);
		facetBarycenter.values.reserve(facetCount);
		horizExtension.values.reserve(facetCount);
		vertExtension.values.reserve(facetCount);
		surfaceExtension.values.reserve(facetCount);
	}
	catch (const std::bad_alloc&)
	{
		m_app->dispToConsole("Not enough memory!",ccMainAppInterface::ERR_CONSOLE_MESSAGE);
		return;
	}

	ccHObject toSave("facets");

	//depending on the 'main orientation', the job is more or less easy ;)
	bool useNativeOrientation = fDlg.nativeOriRadioButton->isChecked();
	bool useGlobalOrientation = fDlg.verticalOriRadioButton->isChecked();
	bool useCustomOrientation = fDlg.customOriRadioButton->isChecked();

	//Default base
	CCVector3 X(1,0,0), Y(0,1,0), Z(0,0,1);

	//'vertical' orientation (potentially specified by the user)
	if (!useNativeOrientation)
	{
		if (useCustomOrientation)
		{
			Z = CCVector3(	static_cast<PointCoordinateType>(fDlg.nXLineEdit->text().toDouble()),
							static_cast<PointCoordinateType>(fDlg.nYLineEdit->text().toDouble()),
							static_cast<PointCoordinateType>(fDlg.nZLineEdit->text().toDouble()) );
			Z.normalize();
//.........这里部分代码省略.........

void ccGraphicalSegmentationTool::doExportSegmentationPolyline()
{
	MainWindow* mainWindow = MainWindow::TheInstance();
	if (mainWindow && m_segmentationPoly)
	{
		bool mode2D = false;
#ifdef ALLOW_2D_OR_3D_EXPORT
		QMessageBox messageBox(0);
		messageBox.setWindowTitle("Choose export type");
		messageBox.setText("Export polyline in:\n - 2D (with coordinates relative to the screen)\n - 3D (with coordinates relative to the segmented entities)");
		QPushButton* button2D = new QPushButton("2D");
		QPushButton* button3D = new QPushButton("3D");
		messageBox.addButton(button2D,QMessageBox::AcceptRole);
		messageBox.addButton(button3D,QMessageBox::AcceptRole);
		messageBox.addButton(QMessageBox::Cancel);
		messageBox.setDefaultButton(button3D);
		messageBox.exec();
		if (messageBox.clickedButton() == messageBox.button(QMessageBox::Cancel))
		{
			//process cancelled by user
			return;
		}
		mode2D = (messageBox.clickedButton() == button2D);
#endif

		ccPolyline* poly = new ccPolyline(*m_segmentationPoly);

		//if the polyline is 2D and we export the polyline in 3D, we must project its vertices
		if (!mode2D)
		{
			//get current display parameters
			ccGLCameraParameters camera;
			m_associatedWin->getGLCameraParameters(camera);
			const double half_w = camera.viewport[2] / 2.0;
			const double half_h = camera.viewport[3] / 2.0;

			//project the 2D polyline in 3D
			CCLib::GenericIndexedCloudPersist* vertices = poly->getAssociatedCloud();
			ccPointCloud* verticesPC = dynamic_cast<ccPointCloud*>(vertices);
			if (verticesPC)
			{
				for (unsigned i=0; i<vertices->size(); ++i)
				{
					CCVector3* Pscreen = const_cast<CCVector3*>(verticesPC->getPoint(i));
					CCVector3d Pd(half_w + Pscreen->x, half_h + Pscreen->y, 0/*Pscreen->z*/);
					CCVector3d Q3D;
					camera.unproject(Pd, Q3D);
					*Pscreen = CCVector3::fromArray(Q3D.u);
				}
				verticesPC->invalidateBoundingBox();
			}
			else
			{
				assert(false);
				ccLog::Warning("[Segmentation] Failed to convert 2D polyline to 3D! (internal inconsistency)");
				mode2D = false;
			}
		}
		
		QString polyName = QString("Segmentation polyline #%1").arg(++s_polylineExportCount);
		poly->setName(polyName);
		poly->setEnabled(false); //we don't want it to appear while the segmentation mode is enabled! (anyway it's 2D only...)
		poly->set2DMode(mode2D);
		poly->setColor(ccColor::yellow); //we use a different color so as to differentiate them from the active polyline!

		//save associated viewport
		cc2DViewportObject* viewportObject = new cc2DViewportObject(polyName + QString(" viewport"));
		viewportObject->setParameters(m_associatedWin->getViewportParameters());
		viewportObject->setDisplay(m_associatedWin);
		poly->addChild(viewportObject);

		mainWindow->addToDB(poly,false,false,false);
		ccLog::Print(QString("[Segmentation] Polyline exported (%1 vertices)").arg(poly->size()));
	}
}

void ccGraphicalSegmentationTool::doActionUseExistingPolyline()
{
	MainWindow* mainWindow = MainWindow::TheInstance();
	if (mainWindow)
	{
		ccHObject* root = mainWindow->dbRootObject();
		ccHObject::Container polylines;
		if (root)
		{
			root->filterChildren(polylines,true,CC_TYPES::POLY_LINE);
		}

		if (!polylines.empty())
		{
			ccEntityPickerDlg epDlg(polylines,false,0,this);
			if (!epDlg.exec())
				return;

			int index = epDlg.getSelectedIndex();
			assert(index >= 0 && index < static_cast<int>(polylines.size()));
			assert(polylines[index]->isA(CC_TYPES::POLY_LINE));
			ccPolyline* poly = static_cast<ccPolyline*>(polylines[index]);

			//look for an asociated viewport
			ccHObject::Container viewports;
			if (poly->filterChildren(viewports,false,CC_TYPES::VIEWPORT_2D_OBJECT,true) == 1)
			{
				//shall we apply this viewport?
				if (QMessageBox::question(	m_associatedWin ? m_associatedWin->asWidget() : 0,
											"Associated viewport",
											"The selected polyline has an associated viewport: do you want to apply it?",
											QMessageBox::Yes,
											QMessageBox::No) == QMessageBox::Yes)
				{
					m_associatedWin->setViewportParameters(static_cast<cc2DViewportObject*>(viewports.front())->getParameters());
					m_associatedWin->redraw(false);
				}
			}

			CCLib::GenericIndexedCloudPersist* vertices = poly->getAssociatedCloud();
			bool mode3D = !poly->is2DMode();

			//viewing parameters (for conversion from 3D to 2D)
			ccGLCameraParameters camera;
			m_associatedWin->getGLCameraParameters(camera);
			const double half_w = camera.viewport[2] / 2.0;
			const double half_h = camera.viewport[3] / 2.0;

			//force polygonal selection mode
			doSetPolylineSelection();
			m_segmentationPoly->clear();
			m_polyVertices->clear();
			allowPolylineExport(false);

			//duplicate polyline 'a minima' (only points and indexes + closed state)
			if (	m_polyVertices->reserve(vertices->size())
				&&	m_segmentationPoly->reserve(poly->size()))
			{
				for (unsigned i=0; i<vertices->size(); ++i)
				{
					CCVector3 P = *vertices->getPoint(i);
					if (mode3D)
					{
						CCVector3d Q2D;
						camera.project(P, Q2D);

						P.x = static_cast<PointCoordinateType>(Q2D.x-half_w);
						P.y = static_cast<PointCoordinateType>(Q2D.y-half_h);
						P.z = 0;
					}
					m_polyVertices->addPoint(P);
				}
				for (unsigned j=0; j<poly->size(); ++j)
				{
					m_segmentationPoly->addPointIndex(poly->getPointGlobalIndex(j));
				}
				
				m_segmentationPoly->setClosed(poly->isClosed());
				if (m_segmentationPoly->isClosed())
				{
					//stop
					m_state &= (~RUNNING);
					allowPolylineExport(m_segmentationPoly->size() > 1);
				}

				if (m_associatedWin)
					m_associatedWin->redraw(true, false);
			}
			else
			{
				ccLog::Error("Not enough memory!");
			}
		}
		else
		{
			ccLog::Error("No polyline in DB!");
		}
	}
}