//---------------------------------------------------------
void CPolygon_Clip::Clip_Lines(CSG_Shapes *pClips, CSG_Shapes *pInputs, CSG_Shapes *pOutputs)
{
	for(int iClip=0; iClip<pClips->Get_Count() && Set_Progress(iClip, pClips->Get_Count()); iClip++)
	{
		CSG_Shape_Polygon	*pClip	= (CSG_Shape_Polygon *)pClips->Get_Shape(iClip);

		if( pInputs->Select(pClip->Get_Extent()) )
		{
			for(int iInput=0; iInput<pInputs->Get_Selection_Count(); iInput++)
			{
				CSG_Shape	*pNew_Line, *pLine	= pInputs->Get_Selection(iInput);

				for(int iPart=0, jPart=-1; iPart<pLine->Get_Part_Count(); iPart++)
				{
					TSG_Point	B, A	= pLine->Get_Point(0, iPart);
					bool		bIn		= pClip->Contains(A);

					if( bIn )
					{
						pNew_Line	= pOutputs->Add_Shape(pLine, SHAPE_COPY_ATTR);

						pNew_Line->Add_Point(A, ++jPart);
					}

					for(int iPoint=1; iPoint<pLine->Get_Point_Count(iPart); iPoint++)
					{
						B	= A;
						A	= pLine->Get_Point(iPoint, iPart);

						if( bIn )
						{
							if( pClip->Contains(A) )
							{
								pNew_Line->Add_Point(A, jPart);
							}
							else
							{
								pNew_Line->Add_Point(Get_Crossing(pClip, A, B), jPart);

								bIn	= false;
							}
						}
						else if( pClip->Contains(A) )
						{
							if( jPart < 0 )
							{
								pNew_Line	= pOutputs->Add_Shape(pLine, SHAPE_COPY_ATTR);
							}

							pNew_Line->Add_Point(Get_Crossing(pClip, A, B), ++jPart);
							pNew_Line->Add_Point(A, jPart);

							bIn	= true;
						}
					}
				}
			}
		}
	}
}
//---------------------------------------------------------
void CPolygon_Clip::Clip_Points(CSG_Shapes *pClips, CSG_Shapes *pInputs, CSG_Shapes *pOutputs)
{
	for(int iClip=0; iClip<pClips->Get_Count() && Set_Progress(iClip, pClips->Get_Count()); iClip++)
	{
		CSG_Shape_Polygon	*pClip	= (CSG_Shape_Polygon *)pClips->Get_Shape(iClip);

		for(int iInput=0; iInput<pInputs->Get_Count(); iInput++)
		{
			CSG_Shape	*pInput		= pInputs->Get_Shape(iInput);
			CSG_Shape	*pOutput	= NULL;

			for(int iPoint=0; iPoint<pInput->Get_Point_Count(0); iPoint++)
			{
				if( pClip->Contains(pInput->Get_Point(iPoint, 0)) )
				{
					if( pOutput == NULL )
					{
						pOutput	= pOutputs->Add_Shape(pInput, SHAPE_COPY_ATTR);
					}

					pOutput->Add_Point(pInput->Get_Point(iPoint, 0));
				}
			}
		}
	}
}
Esempio n. 3
0
//---------------------------------------------------------
bool CErosion_LS_Fields::Set_Fields(void)
{
	CSG_Shapes	*pFields	= Parameters("FIELDS")->asShapes();

	//-----------------------------------------------------
	if( !pFields || pFields->Get_Count() <= 0 )
	{
		m_Fields.Create(*Get_System(), SG_DATATYPE_Char);
	//	m_Fields.Set_NoData_Value(1.0);
	//	m_Fields.Assign(0.0);

		#pragma omp parallel for
		for(int y=0; y<Get_NY(); y++)
		{
			for(int x=0; x<Get_NX(); x++)
			{
				if( !m_pDEM->is_InGrid(x, y) )
				{
					m_Fields.Set_NoData(x, y);
				}
			}
		}

		return( true );
	}

	//-----------------------------------------------------
	Process_Set_Text(_TL("Initializing Fields"));

	m_nFields	= pFields->Get_Count();

	m_Fields.Create(*Get_System(), m_nFields < pow(2.0, 16.0) - 1.0 ? SG_DATATYPE_Word : SG_DATATYPE_DWord);
	m_Fields.Set_NoData_Value(m_nFields);
	m_Fields.Assign_NoData();

	//-----------------------------------------------------
	for(int iField=0; iField<pFields->Get_Count() && Set_Progress(iField, pFields->Get_Count()); iField++)
	{
		CSG_Shape_Polygon	*pField	= (CSG_Shape_Polygon *)pFields->Get_Shape(iField);

		int	xMin	= Get_System()->Get_xWorld_to_Grid(pField->Get_Extent().Get_XMin()) - 1; if( xMin <  0        ) xMin = 0;
		int	xMax	= Get_System()->Get_xWorld_to_Grid(pField->Get_Extent().Get_XMax()) + 1; if( xMax >= Get_NX() ) xMax = Get_NX() - 1;
		int	yMin	= Get_System()->Get_yWorld_to_Grid(pField->Get_Extent().Get_YMin()) - 1; if( yMin <  0        ) yMin = 0;
		int	yMax	= Get_System()->Get_yWorld_to_Grid(pField->Get_Extent().Get_YMax()) + 1; if( yMax >= Get_NY() ) yMax = Get_NY() - 1;

		for(int y=yMin; y<=yMax; y++)
		{
			for(int x=xMin; x<=xMax; x++)
			{
				if( m_pDEM->is_InGrid(x, y) && pField->Contains(Get_System()->Get_Grid_to_World(x, y)) )
				{
					m_Fields.Set_Value(x, y, iField);
				}
			}
		}
	}

	//-----------------------------------------------------
	return( true );
}
//---------------------------------------------------------
bool CPolygon_Vertex_Check::On_Execute(void)
{
	//-----------------------------------------------------
	CSG_Shapes	*pPolygons	= Parameters("POLYGONS")->asShapes();

	if( Parameters("CHECKED")->asShapes() && Parameters("CHECKED")->asShapes() != pPolygons )
	{
		CSG_Shapes	*pCopy	= Parameters("CHECKED")->asShapes();

		pCopy->Create(*pPolygons);
		pCopy->Set_Name(CSG_String::Format(SG_T("%s [%s]"), pPolygons->Get_Name(), _TL("checked")));

		pPolygons	= pCopy;
	}

	if( (m_pAdded = Parameters("ADDED")->asShapes()) != NULL )
	{
		m_pAdded->Create(SHAPE_TYPE_Point, _TL("Added"));
	}

	double	Epsilon	= Parameters("EPSILON")->asDouble();

	//-----------------------------------------------------
	for(int iPolygon=0; iPolygon<pPolygons->Get_Count()-1 && Set_Progress(iPolygon, pPolygons->Get_Count()-1); iPolygon++)
	{
		CSG_Shape_Polygon	*pA	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		for(int jPolygon=iPolygon+1; jPolygon<pPolygons->Get_Count() && Process_Get_Okay(); jPolygon++)
		{
			CSG_Shape_Polygon	*pB	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(jPolygon);

			for(int iPart=0; iPart<pA->Get_Part_Count() && Process_Get_Okay(); iPart++)
			{
				for(int jPart=0; jPart<pB->Get_Part_Count() && Process_Get_Okay(); jPart++)
				{
					if( pA->Get_Part(iPart)->Get_Extent().Intersects(pB->Get_Part(jPart)->Get_Extent()) )
					{
						Check_Vertices(pA->Get_Part(iPart), pB->Get_Part(jPart), Epsilon);
						Check_Vertices(pB->Get_Part(jPart), pA->Get_Part(iPart), Epsilon);
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	return( true );
}
Esempio n. 5
0
//---------------------------------------------------------
bool CPolygon_Centroids::On_Execute(void)
{
	bool			bPart;
	int				iShape, iPart;
	CSG_Shape			*pCentroid;
	CSG_Shape_Polygon	*pPolygon;
	CSG_Shapes			*pPolygons, *pCentroids;

	pPolygons	= Parameters("POLYGONS")	->asShapes();
	pCentroids	= Parameters("CENTROIDS")	->asShapes();
	bPart		= Parameters("METHOD")		->asBool();

	if(	pPolygons->Get_Type() == SHAPE_TYPE_Polygon && pPolygons->Get_Count() > 0 )
	{
		pCentroids->Create(SHAPE_TYPE_Point, pPolygons->Get_Name(), pPolygons);

		//-------------------------------------------------
		for(iShape=0; iShape<pPolygons->Get_Count(); iShape++)
		{
			pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iShape);

			if( bPart )
			{
				for(iPart=0; iPart<pPolygon->Get_Part_Count(); iPart++)
				{
					pCentroid	= pCentroids->Add_Shape(pPolygon, SHAPE_COPY_ATTR);
					pCentroid->Add_Point(pPolygon->Get_Centroid(iPart));
				}
			}
			else
			{
				pCentroid	= pCentroids->Add_Shape(pPolygon, SHAPE_COPY_ATTR);
				pCentroid->Add_Point(pPolygon->Get_Centroid());
			}
		}

		return( true );
	}

	return( false );
}
//---------------------------------------------------------
bool CGrid_Classify_Supervised::Set_Classifier(CSG_Classifier_Supervised &Classifier, CSG_Shapes *pPolygons, int Field)
{
	Process_Set_Text(_TL("training"));

	//-----------------------------------------------------
	TSG_Point	p;	p.y	= Get_YMin();

	for(int y=0; y<Get_NY() && Set_Progress(y); y++, p.y+=Get_Cellsize())
	{
		p.x	= Get_XMin();

		for(int x=0; x<Get_NX(); x++, p.x+=Get_Cellsize())
		{
			CSG_Vector	Features(m_pFeatures->Get_Count());

			if( Get_Features(x, y, Features) )
			{
				for(int iPolygon=0; iPolygon<pPolygons->Get_Count(); iPolygon++)
				{
					CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

					if( pPolygon->Contains(p) )
					{
						Classifier.Train_Add_Sample(pPolygon->asString(Field), Features);
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	if( Classifier.Train(true) )
	{
		Classifier.Save(Parameters("FILE_SAVE")->asString());

		return( true );
	}

	return( false );
}
Esempio n. 7
0
//---------------------------------------------------------
bool CSelectByTheme::Select(CSG_Shapes *pShapes, CSG_Shapes *pShapes2, int iCondition, bool bFromSelection)
{
	CSG_Shapes			Intersect(SHAPE_TYPE_Polygon);
	CSG_Shape_Polygon	*pIntersect	= (CSG_Shape_Polygon *)Intersect.Add_Shape();

	m_Selection.clear();

	for(int i=0; i<pShapes->Get_Count() && Set_Progress(i, pShapes->Get_Count()); i++)
	{
		CSG_Shape_Polygon	*pShape	= (CSG_Shape_Polygon *)pShapes->Get_Shape(i);

		bool	bSelect	= false;

		for(int j=0; !bSelect && j<pShapes2->Get_Count(); j++)
		{
			if( !bFromSelection || pShapes2->Get_Record(j)->is_Selected() )
			{
				CSG_Shape_Polygon	*pShape2 = (CSG_Shape_Polygon *)pShapes2->Get_Shape(j);

				switch( iCondition )
				{
				case 0: //intersect
					if( GPC_Intersection(pShape, pShape2, pIntersect) )
					{
						bSelect = true;
					}
					break;

				case 1: //are completely within
					if( GPC_Intersection(pShape, pShape2, pIntersect)
					&&  pIntersect->Get_Area() == pShape->Get_Area() )
					{
						bSelect = true;
					}
					break;

				case 2: //Completely contain
					if( GPC_Intersection(pShape, pShape2, pIntersect)
					&&	pIntersect->Get_Area() == pShape2->Get_Area() )
					{
						bSelect = true;
					}
					break;

				case 3: //have their center in
					if( pShape2->is_Containing(pShape->Get_Centroid()) )
					{
						bSelect = true;
					}
					break;

				case 4: //contain center of
					if( pShape->is_Containing(pShape2->Get_Centroid()) )
					{
						bSelect = true;
					}
					break;
				}

				if( bSelect )
				{
					m_Selection.push_back(i);
				}
			}
		}
	}

	return( m_Selection.size() > 0 );
}
Esempio n. 8
0
//---------------------------------------------------------
bool CShape_Index::On_Execute(void)
{
	CSG_Shapes	*pShapes, *pIndex;

	//-----------------------------------------------------
	pShapes	= Parameters("SHAPES")	->asShapes();
	pIndex	= Parameters("INDEX")	->asShapes();

	//-----------------------------------------------------
	if( pShapes->is_Valid() )
	{
		int		iField	= pShapes->Get_Field_Count();

		if( pIndex == NULL )
		{
			pIndex	= pShapes;
		}

		if( pIndex != pShapes )
		{
			pIndex->Create(SHAPE_TYPE_Polygon, _TL("Shape Index"), pShapes);
		}

		pIndex->Add_Field(_TL("Area")			, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("Perimenter")		, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("P/A")			, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("P/sqrt(A)")		, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("Max.Distance")	, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("D/A")			, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("D/sqrt(A)")		, SG_DATATYPE_Double);
		pIndex->Add_Field(_TL("Shape Index")	, SG_DATATYPE_Double);

		for(int iShape=0; iShape<pShapes->Get_Count() && Set_Progress(iShape, pShapes->Get_Count()); iShape++)
		{
			CSG_Shape_Polygon	*pShape	= (CSG_Shape_Polygon *)pShapes->Get_Shape(iShape);

			double	Area		= pShape->Get_Area();
			double	Perimeter	= pShape->Get_Perimeter();
			double	Distance	= Get_Distance(pShape);

			if( Perimeter > 0.0 && Distance > 0.0 )
			{
				if( pIndex != pShapes )
				{
					pShape		= (CSG_Shape_Polygon *)pIndex->Add_Shape(pShape, SHAPE_COPY_ATTR);
				}

				pShape->Set_Value(iField + 0, Area);
				pShape->Set_Value(iField + 1, Perimeter);
				pShape->Set_Value(iField + 2, Perimeter / Area);
				pShape->Set_Value(iField + 3, Perimeter / sqrt(Area));
				pShape->Set_Value(iField + 4, Distance);
				pShape->Set_Value(iField + 5, Distance / Area);
				pShape->Set_Value(iField + 6, Distance / sqrt(Area));
				pShape->Set_Value(iField + 7, Perimeter / (2.0 * sqrt(M_PI * Area)));
			}
		}

		if( pIndex == pShapes )
		{
			DataObject_Update(pShapes);
		}

		return( pIndex->is_Valid() );
	}

	//-----------------------------------------------------
	return( false );
}
//---------------------------------------------------------
bool CPolygonStatisticsFromPoints::On_Execute(void)
{
	//-----------------------------------------------------
	bool	bSum	= Parameters("SUM")->asBool();
	bool	bAvg	= Parameters("AVG")->asBool();
	bool	bVar	= Parameters("VAR")->asBool();
	bool	bDev	= Parameters("DEV")->asBool();
	bool	bMin	= Parameters("MIN")->asBool();
	bool	bMax	= Parameters("MAX")->asBool();
	bool	bNum	= Parameters("NUM")->asBool();

	if( !bSum && !bAvg && !bVar && !bDev && !bMin && !bMax && !bNum )
	{
		Error_Set(_TL("no target variable in selection"));

		return( false );
	}

	//-----------------------------------------------------
	CSG_Parameter_Table_Fields	*pFields	= Parameters("FIELDS")->asTableFields();

	if( pFields->Get_Count() <= 0 )
	{
		Error_Set(_TL("no attributes in selection"));

		return( false );
	}

	//-----------------------------------------------------
	CSG_Shapes	*pPoints	= Parameters("POINTS"  )->asShapes();
	CSG_Shapes	*pPolygons	= Parameters("POLYGONS")->asShapes();

	if( pPolygons->Get_Count() <= 0 || pPoints->Get_Count() <= 0 )
	{
		Error_Set(_TL("no records in input data"));

		return( false );
	}

	//-----------------------------------------------------
	if( Parameters("STATISTICS")->asShapes() == NULL )
	{
		Parameters("STATISTICS")->Set_Value(pPolygons);
	}
	else if( pPolygons != Parameters("STATISTICS")->asShapes() )
	{
		Parameters("STATISTICS")->asShapes()->Assign(pPolygons);

		pPolygons	= Parameters("STATISTICS")->asShapes();
	}

	//-----------------------------------------------------
	int		i, n, Offset	= pPolygons->Get_Field_Count();

	for(i=0; i<pFields->Get_Count(); i++)
	{
		CSG_String	sName	= pPoints->Get_Field_Name(pFields->Get_Index(i));

		if( bSum )	{	pPolygons->Add_Field(Get_Field_Name("SUM", sName), SG_DATATYPE_Double);	}
		if( bAvg )	{	pPolygons->Add_Field(Get_Field_Name("AVG", sName), SG_DATATYPE_Double);	}
		if( bVar )	{	pPolygons->Add_Field(Get_Field_Name("VAR", sName), SG_DATATYPE_Double);	}
		if( bDev )	{	pPolygons->Add_Field(Get_Field_Name("DEV", sName), SG_DATATYPE_Double);	}
		if( bMin )	{	pPolygons->Add_Field(Get_Field_Name("MIN", sName), SG_DATATYPE_Double);	}
		if( bMax )	{	pPolygons->Add_Field(Get_Field_Name("MAX", sName), SG_DATATYPE_Double);	}
		if( bNum )	{	pPolygons->Add_Field(Get_Field_Name("NUM", sName), SG_DATATYPE_Long  );	}
	}

	//-----------------------------------------------------
	CSG_Simple_Statistics	*Statistics	= new CSG_Simple_Statistics[pFields->Get_Count()];

	for(int iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
	{
		CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		//-------------------------------------------------
		for(i=0; i<pFields->Get_Count(); i++)
		{
			Statistics[i].Invalidate();
		}

		//-------------------------------------------------
		for(int iPoint=0; iPoint<pPoints->Get_Count() && Process_Get_Okay(); iPoint++)
		{
			CSG_Shape	*pPoint	= pPoints->Get_Shape(iPoint);

			if( pPolygon->Contains(pPoint->Get_Point(0)) )
			{
				for(i=0; i<pFields->Get_Count(); i++)
				{
					if( !pPoint->is_NoData(pFields->Get_Index(i)))
					{
						Statistics[i].Add_Value(pPoint->asDouble(pFields->Get_Index(i)));
					}
				}
			}
		}

		//-------------------------------------------------
		for(i=0, n=Offset; i<pFields->Get_Count(); i++)
		{
			if( Statistics[i].Get_Count() > 0 )
			{
				if( bSum )	{	pPolygon->Set_Value (n++, Statistics[i].Get_Sum());				}
				if( bAvg )	{	pPolygon->Set_Value (n++, Statistics[i].Get_Mean());			}
				if( bVar )	{	pPolygon->Set_Value (n++, Statistics[i].Get_Variance());		}
				if( bDev )	{	pPolygon->Set_Value (n++, Statistics[i].Get_StdDev());			}
				if( bMin )	{	pPolygon->Set_Value (n++, Statistics[i].Get_Minimum());			}
				if( bMax )	{	pPolygon->Set_Value (n++, Statistics[i].Get_Maximum());			}
				if( bNum )	{	pPolygon->Set_Value (n++, (double)Statistics[i].Get_Count());	}
			}
			else
			{
				if( bSum )	{	pPolygon->Set_NoData(n++);		}
				if( bAvg )	{	pPolygon->Set_NoData(n++);		}
				if( bVar )	{	pPolygon->Set_NoData(n++);		}
				if( bDev )	{	pPolygon->Set_NoData(n++);		}
				if( bMin )	{	pPolygon->Set_NoData(n++);		}
				if( bMax )	{	pPolygon->Set_NoData(n++);		}
				if( bNum )	{	pPolygon->Set_Value (n++, 0.0);	}
			}
		}
	}

	//-----------------------------------------------------
	delete[](Statistics);

	DataObject_Update(pPolygons);

	return( true );
}
//---------------------------------------------------------
bool CPolygonStatisticsFromPoints::On_Execute(void)
{
	int						i, j, n, Offset, *bAttribute;
	CSG_Simple_Statistics	*Statistics;
	CSG_Parameters			*pParameters;
	CSG_Shapes				*pPolygons, *pPoints;

	//-----------------------------------------------------
	pPoints		= Parameters("POINTS")		->asShapes();
	pPolygons	= Parameters("POLYGONS")	->asShapes();

	if( pPolygons->Get_Count() <= 0 || pPoints->Get_Count() <= 0 )
	{
		return( false );
	}

	//-----------------------------------------------------
	pParameters	= Get_Parameters("ATTRIBUTES");

	pParameters->Del_Parameters();

	for(i=0; i<pPoints->Get_Field_Count(); i++)
	{
		if( SG_Data_Type_is_Numeric(pPoints->Get_Field_Type(i)) )
		{
			CSG_Parameter	*pNode	= pParameters->Add_Node(NULL, CSG_String::Format(SG_T("%d"), i), pPoints->Get_Field_Name(i), _TL(""));

			for(j=0; j<STAT_Count; j++)
			{
				pParameters->Add_Value(pNode,
					CSG_String::Format(SG_T("%d|%d"), i, j),
					CSG_String::Format(SG_T("[%s]"), STAT_Name[j].c_str()),
					_TL(""), PARAMETER_TYPE_Bool, false
				);
			}
		}
	}

	if( !Dlg_Parameters("ATTRIBUTES") )
	{
		return( false );
	}

	//-----------------------------------------------------
	if( Parameters("STATISTICS")->asShapes() == NULL )
	{
		Parameters("STATISTICS")->Set_Value(pPolygons);
	}
	else if( pPolygons != Parameters("STATISTICS")->asShapes() )
	{
		Parameters("STATISTICS")->asShapes()->Assign(pPolygons);

		pPolygons	= Parameters("STATISTICS")->asShapes();
	}

	//-----------------------------------------------------
	bAttribute	= new int[pPoints->Get_Field_Count()];
	Offset		= pPolygons->Get_Field_Count();

	for(i=0, n=0; i<pPoints->Get_Field_Count(); i++)
	{
		bAttribute[i]	= 0;

		if( SG_Data_Type_is_Numeric(pPoints->Get_Field_Type(i)) )
		{
			for(j=0; j<STAT_Count; j++)
			{
				CSG_Parameter	*pParameter	= pParameters->Get_Parameter(CSG_String::Format(SG_T("%d|%d"), i, j));

				if( pParameter && pParameter->asBool() )
				{
					bAttribute[i]	|= STAT_Flag[j];

					pPolygons->Add_Field(CSG_String::Format(SG_T("%s_%s"), pPoints->Get_Field_Name(i), STAT_Name[j].c_str()), SG_DATATYPE_Double);

					n++;
				}
			}
		}
	}

	if( n == 0 )
	{
		delete[](bAttribute);

		return( false );
	}

	//-----------------------------------------------------
	Statistics	= new CSG_Simple_Statistics[pPoints->Get_Field_Count()];

	for(int iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
	{
		CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		//-------------------------------------------------
		for(i=0; i<pPoints->Get_Field_Count(); i++)
		{
			Statistics[i].Invalidate();
		}

		//-------------------------------------------------
		for(int iPoint=0; iPoint<pPoints->Get_Count() && Process_Get_Okay(); iPoint++)
		{
			CSG_Shape	*pPoint	= pPoints->Get_Shape(iPoint);

			if( pPolygon->is_Containing(pPoint->Get_Point(0)) )
			{
				for(i=0; i<pPoints->Get_Field_Count(); i++)
				{
					if( bAttribute[i] )
					{
						Statistics[i].Add_Value(pPoint->asDouble(i));
					}
				}
			}
		}

		//-------------------------------------------------
		for(i=0, n=Offset; i<pPoints->Get_Field_Count(); i++)
		{
			if( bAttribute[i] )
			{
				if( Statistics[i].Get_Count() > 0 )
				{
					if( bAttribute[i] & STAT_Flag[STAT_Sum] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Sum());		}
					if( bAttribute[i] & STAT_Flag[STAT_Avg] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Mean());		}
					if( bAttribute[i] & STAT_Flag[STAT_Var] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Variance());	}
					if( bAttribute[i] & STAT_Flag[STAT_Dev] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_StdDev());	}
					if( bAttribute[i] & STAT_Flag[STAT_Min] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Minimum());	}
					if( bAttribute[i] & STAT_Flag[STAT_Max] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Maximum());	}
					if( bAttribute[i] & STAT_Flag[STAT_Num] )	{	pPolygon->Set_Value(n++, Statistics[i].Get_Count());	}
				}
				else
				{
					if( bAttribute[i] & STAT_Flag[STAT_Sum] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Avg] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Var] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Dev] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Min] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Max] )	{	pPolygon->Set_NoData(n++);	}
					if( bAttribute[i] & STAT_Flag[STAT_Num] )	{	pPolygon->Set_NoData(n++);	}
				}
			}
		}
	}

	//-----------------------------------------------------
	delete[](Statistics);
	delete[](bAttribute);

	DataObject_Update(pPolygons);

	return( true );
}
Esempio n. 11
0
//---------------------------------------------------------
bool CShape_Index::On_Execute(void)
{
	//-----------------------------------------------------
	CSG_Shapes	*pPolygons = Parameters("SHAPES")->asShapes();

	if( !pPolygons->is_Valid() )
	{
		Error_Set(_TL("invalid polygons layer"));

		return( false );
	}

	//-----------------------------------------------------
	if( Parameters("INDEX")->asShapes() && Parameters("INDEX")->asShapes() != pPolygons )
	{
		CSG_Shapes	*pTarget   = Parameters("INDEX")->asShapes();

		pTarget->Create(SHAPE_TYPE_Polygon, CSG_String::Format("%s [%s]", pPolygons->Get_Name(), _TL("Shape Indices")));

		pTarget->Add_Field("ID", SG_DATATYPE_Int);

		for(int iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
		{
			pTarget->Add_Shape(pPolygons->Get_Shape(iPolygon), SHAPE_COPY)->Set_Value(0, iPolygon);
		}

		pPolygons	= pTarget;
	}

	//-----------------------------------------------------
	int	offIndices	= pPolygons->Get_Field_Count();

	pPolygons->Add_Field(_TL("A"           ), SG_DATATYPE_Double);	//  0
	pPolygons->Add_Field(_TL("P"           ), SG_DATATYPE_Double);	//  1
	pPolygons->Add_Field(_TL("P/A"         ), SG_DATATYPE_Double);	//  2
	pPolygons->Add_Field(_TL("P/sqrt(A)"   ), SG_DATATYPE_Double);	//  3
	pPolygons->Add_Field(_TL("Depqc"       ), SG_DATATYPE_Double);	//  4
	pPolygons->Add_Field(_TL("Sphericity"  ), SG_DATATYPE_Double);	//  5
	pPolygons->Add_Field(_TL("Shape Index" ), SG_DATATYPE_Double);	//  6
	pPolygons->Add_Field(_TL("Dmax"        ), SG_DATATYPE_Double);	//  7
	pPolygons->Add_Field(_TL("DmaxDir"     ), SG_DATATYPE_Double);	//  8
	pPolygons->Add_Field(_TL("Dmax/A"      ), SG_DATATYPE_Double);	//  9
	pPolygons->Add_Field(_TL("Dmax/sqrt(A)"), SG_DATATYPE_Double);	// 10

	bool	bGyros	= Parameters("GYROS")->asBool();

	if( bGyros )
	{
		pPolygons->Add_Field(_TL("Dgyros"  ), SG_DATATYPE_Double);	// 11
	}

	int	offFeret	= pPolygons->Get_Field_Count();

	double	dFeret	= 0.0;

	if( Parameters("FERET")->asBool() )
	{
		dFeret	= M_DEG_TO_RAD * (180. / (1. + Parameters("FERET_DIRS")->asInt()));

		pPolygons->Add_Field(_TL("Fmax"    ), SG_DATATYPE_Double);	//  0
		pPolygons->Add_Field(_TL("FmaxDir" ), SG_DATATYPE_Double);	//  1
		pPolygons->Add_Field(_TL("Fmin"    ), SG_DATATYPE_Double);	//  2
		pPolygons->Add_Field(_TL("FminDir" ), SG_DATATYPE_Double);	//  3
		pPolygons->Add_Field(_TL("Fmean"   ), SG_DATATYPE_Double);	//  4
		pPolygons->Add_Field(_TL("Fmax90"  ), SG_DATATYPE_Double);	//  5
		pPolygons->Add_Field(_TL("Fmin90"  ), SG_DATATYPE_Double);	//  6
		pPolygons->Add_Field(_TL("Fvol"    ), SG_DATATYPE_Double);	//  7
	}

	//-----------------------------------------------------
	CSG_Shapes	*pDmax	= Parameters("DMAX")->asShapes();

	if( pDmax )
	{
		pDmax->Create(SHAPE_TYPE_Line, CSG_String::Format("%s [%s]", pPolygons->Get_Name(), _TL("Maximum Diameter")));

		pDmax->Add_Field("ID", SG_DATATYPE_Int   );
		pDmax->Add_Field("D" , SG_DATATYPE_Double);
	}

	//-----------------------------------------------------
	for(int iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
	{
		CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		double	A	= pPolygon->Get_Area     ();
		double	P	= pPolygon->Get_Perimeter();

		if( A > 0.0 && P > 0.0 )
		{
			pPolygon->Set_Value(offIndices + 0, A);
			pPolygon->Set_Value(offIndices + 1, P);
			pPolygon->Set_Value(offIndices + 2, P / A);
			pPolygon->Set_Value(offIndices + 3, P / sqrt(A));
			pPolygon->Set_Value(offIndices + 4, 2 * sqrt(A / M_PI));
			pPolygon->Set_Value(offIndices + 5, (2 * sqrt(A * M_PI)) / P);
			pPolygon->Set_Value(offIndices + 6, P / (2 * sqrt(A * M_PI)));

			double	Dmax;	TSG_Point	Pmax[2];

			if( Get_Diameter_Max(pPolygon, Dmax, Pmax) )
			{
				double	DmaxDir	= SG_Get_Angle_Of_Direction(Pmax[0], Pmax[1]); if( DmaxDir > M_PI_180 ) DmaxDir -= M_PI_180;

				pPolygon->Set_Value(offIndices +  7, Dmax);
				pPolygon->Set_Value(offIndices +  8, DmaxDir * M_RAD_TO_DEG);
				pPolygon->Set_Value(offIndices +  9, Dmax / A);
				pPolygon->Set_Value(offIndices + 10, Dmax / sqrt(A));

				if( pDmax )
				{
					CSG_Shape	*pLine	= pDmax->Add_Shape();

					pLine->Add_Point(Pmax[0]);
					pLine->Add_Point(Pmax[1]);

					pLine->Set_Value(0, iPolygon);
					pLine->Set_Value(1, Dmax);
				}

				if( bGyros )
				{
					Get_Diameter_Gyros(pPolygon, offIndices + 11);
				}

				if( dFeret > 0.0 )
				{
					Get_Diameters_Feret(pPolygon, offFeret, dFeret);
				}
			}
			else
			{
				for(int iField=offIndices+7; iField<pPolygons->Get_Field_Count(); iField++)
				{
					pPolygon->Set_NoData(iField);
				}
			}
		}
		else
		{
			for(int iField=offIndices; iField<pPolygons->Get_Field_Count(); iField++)
			{
				pPolygon->Set_NoData(iField);
			}
		}
	}

	//-----------------------------------------------------
	if( pPolygons == Parameters("SHAPES")->asShapes() )
	{	// output is always updated automatically - but if input has been modified, this needs a manual update!
		DataObject_Update(pPolygons);
	}

	return( pPolygons->is_Valid() );
}
Esempio n. 12
0
//---------------------------------------------------------
bool CPoint_Zonal_Multi_Grid_Regression::On_Execute(void)
{
	//-----------------------------------------------------
	CSG_Shapes	*pPoints		= Parameters("POINTS"    )->asShapes();
	CSG_Shapes	*pZones			= Parameters("ZONES"     )->asShapes();
	CSG_Grid	*pRegression	= Parameters("REGRESSION")->asGrid  ();

	pRegression->Assign_NoData();

	CSG_Grid	Regression(*Get_System(), SG_DATATYPE_Float);

	SG_UI_Progress_Lock(true);	// suppress dialogs from popping up

	for(int i=0; i<pZones->Get_Count() && Process_Get_Okay(); i++)
	{
		CSG_Shape_Polygon	*pZone	= (CSG_Shape_Polygon *)pZones->Get_Shape(i);

		//-------------------------------------------------
		// select all points located in current zone polygon

		bool	bResult;

		CSG_Shapes Zone(SHAPE_TYPE_Polygon);	Zone.Add_Shape(pZone);

		SG_RUN_TOOL(bResult, "shapes_tools", 5,	// select points by location
			   SG_TOOL_PARAMETER_SET("LOCATIONS", &Zone)
			&& SG_TOOL_PARAMETER_SET("SHAPES"   , pPoints)
		);

		if( !bResult )
		{
			SG_UI_Process_Set_Okay();	// don't stop overall work flow, if tool execution failed for current zone
		}
		else if( pPoints->Get_Selection_Count() > 0 )
		{
			//---------------------------------------------
			// copy selected points to a new (temporary) points layer

			CSG_Shapes	Selection;

			SG_RUN_TOOL(bResult, "shapes_tools", 6,	// copy selected points to a new layer
				   SG_TOOL_PARAMETER_SET("INPUT" , pPoints)
				&& SG_TOOL_PARAMETER_SET("OUTPUT", &Selection)
			);

			pPoints->asShapes()->Select();	// unselect everything from original points layer

			//---------------------------------------------
			// perform the regression analysis, regression grid for zone is temporary

			SG_RUN_TOOL(bResult, "statistics_regression", 1,	// multiple linear regression for points and predictor grids
				   SG_TOOL_PARAMETER_SET("PREDICTORS", Parameters("PREDICTORS"))
				&& SG_TOOL_PARAMETER_SET("REGRESSION", &Regression             )
				&& SG_TOOL_PARAMETER_SET("POINTS"    , &Selection              )
				&& SG_TOOL_PARAMETER_SET("ATTRIBUTE" , Parameters("ATTRIBUTE" ))
				&& SG_TOOL_PARAMETER_SET("RESAMPLING", Parameters("RESAMPLING"))
				&& SG_TOOL_PARAMETER_SET("COORD_X"   , Parameters("COORD_X"   ))
				&& SG_TOOL_PARAMETER_SET("COORD_Y"   , Parameters("COORD_Y"   ))
				&& SG_TOOL_PARAMETER_SET("INTERCEPT" , Parameters("INTERCEPT" ))
				&& SG_TOOL_PARAMETER_SET("METHOD"    , Parameters("METHOD"    ))
				&& SG_TOOL_PARAMETER_SET("P_VALUE"   , Parameters("P_VALUE"   ))
			);

			//---------------------------------------------
			// use zone polygon as mask for copying zonal regression result to final regression grid

			if( !bResult )
			{
				SG_UI_Process_Set_Okay();	// don't stop overall work flow, if tool execution failed for current zone
			}
			else
			{
				#pragma omp parallel for	// speed up using multiple processors
				for(int y=0; y<Get_NY(); y++)
				{
					for(int x=0; x<Get_NX(); x++)
					{
						if( !Regression.is_NoData(x, y) && pZone->Contains(Get_System()->Get_Grid_to_World(x, y)) )
						{
							pRegression->Set_Value(x, y, Regression.asDouble(x, y));
						}
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	SG_UI_Progress_Lock(false);

	//-----------------------------------------------------
	Set_Residuals(pPoints, pRegression);

	//-----------------------------------------------------
	return( true );
}
Esempio n. 13
0
//---------------------------------------------------------
bool CClip_Points::On_Execute(void)
{
	int							Method, iField;
	CSG_Shapes					*pPoints, *pPolygons, *pClip;
	CSG_Parameter_Shapes_List	*pClips;

	//-----------------------------------------------------
	pPoints		= Parameters("POINTS")		->asShapes();
	pPolygons	= Parameters("POLYGONS")	->asShapes();
	pClips		= Parameters("CLIPS")		->asShapesList();
	Method		= Parameters("METHOD")		->asInt();
	iField		= Parameters("FIELD")		->asInt();

	//-----------------------------------------------------
	if( !pPoints->is_Valid() )
	{
		Message_Add(_TL("Invalid points layer."));

		return( false );
	}
	else if( !pPolygons->is_Valid() )
	{
		Message_Add(_TL("Invalid polygon layer."));

		return( false );
	}

	//-----------------------------------------------------
	if( iField >= pPolygons->Get_Field_Count() )
	{
		iField	= -1;
	}

	pClips->Del_Items();

	if( Method == 0 )
	{
		pClip	= SG_Create_Shapes(SHAPE_TYPE_Point, CSG_String::Format(SG_T("%s [%s]"), pPoints->Get_Name(), pPolygons->Get_Name()), pPoints);

		if( iField >= 0 )
		{
			pClip->Add_Field(pPolygons->Get_Field_Name(iField), pPolygons->Get_Field_Type(iField));
		}
	}

	//-----------------------------------------------------
	for(int iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
	{
		CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		if( Method == 1 )
		{
			CSG_String	Name(pPoints->Get_Name());

			Name	+= iField >= 0
					? CSG_String::Format(SG_T(" [%s]"), pPolygon->asString(iField))
					: CSG_String::Format(SG_T(" [%00d]"), 1 + pClips->Get_Count());

			pClip	= SG_Create_Shapes(SHAPE_TYPE_Point, Name, pPoints);

			if( iField >= 0 )
			{
				pClip->Add_Field(pPolygons->Get_Field_Name(iField), pPolygons->Get_Field_Type(iField));
			}
		}

		for(int iPoint=0; iPoint<pPoints->Get_Count() && Process_Get_Okay(false); iPoint++)
		{
			CSG_Shape	*pPoint	= pPoints->Get_Shape(iPoint);

			if( pPolygon->Contains(pPoint->Get_Point(0)) )
			{
				pPoint	= pClip->Add_Shape(pPoint, SHAPE_COPY);

				if( iField >= 0 )
				{
					pPoint->Set_Value(pPoints->Get_Field_Count(), pPolygon->asString(iField));
				}
			}
		}

		if( Method == 1 )
		{
			if( pClip->Get_Count() > 0 )
			{
				pClips->Add_Item(pClip);
			}
			else
			{
				delete(pClip);
			}
		}
	}

	//-----------------------------------------------------
	if( Method == 0 )
	{
		if( pClip->Get_Count() > 0 )
		{
			pClips->Add_Item(pClip);
		}
		else
		{
			delete(pClip);
		}
	}

	return( pClips->Get_Count() > 0 );
}
//---------------------------------------------------------
bool CPolygon_Shared_Edges::On_Execute(void)
{
	//-----------------------------------------------------
	CSG_Shapes	*pPolygons	= Parameters("POLYGONS")->asShapes();

	m_Field		= Parameters("ATTRIBUTE")->asInt();

	m_pEdges	= Parameters("EDGES")->asShapes();
	m_pEdges->Create(SHAPE_TYPE_Line, CSG_String::Format(SG_T("%s [%s]"), pPolygons->Get_Name(), _TL("Edges")));
	m_pEdges->Add_Field("ID_A", m_Field < 0 ? SG_DATATYPE_Int : pPolygons->Get_Field_Type(m_Field));
	m_pEdges->Add_Field("ID_B", m_Field < 0 ? SG_DATATYPE_Int : pPolygons->Get_Field_Type(m_Field));

//	m_pNodes	= Parameters("NODES")->asShapes();
//	m_pNodes->Create(SHAPE_TYPE_Point, CSG_String::Format(SG_T("%s [%s]"), pPolygons->Get_Name(), _TL("Nodes")));
//	m_pNodes->Add_Field("ID", SG_DATATYPE_Int);

	bool	bVertices	= Parameters("VERTICES")->asBool  ();
	double	Epsilon		= Parameters("EPSILON" )->asDouble();

	int	iPolygon, nAdded	= 0, nRemoved	= 0;

	//-----------------------------------------------------
	if( bVertices )
	{
		for(iPolygon=0; iPolygon<pPolygons->Get_Count() && Set_Progress(iPolygon, pPolygons->Get_Count()); iPolygon++)
		{
			CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

			for(int iPart=0; iPart<pPolygon->Get_Part_Count() && Process_Get_Okay(); iPart++)
			{
				CSG_Shape_Part	*pPart	= pPolygon->Get_Part(iPart);

				CSG_Point	A	= pPart->Get_Point(pPart->Get_Count() - 1);

				if( A != pPart->Get_Point(0) )
				{
					pPart->Add_Point(A);
				}

				for(int iPoint=pPart->Get_Count()-2; iPoint>=0; iPoint--)
				{
					CSG_Point	B	= A;	A	= pPart->Get_Point(iPoint);

					if( A == B )
					{
						pPart->Del_Point(iPoint + 1);

						nRemoved--;
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	for(iPolygon=0; iPolygon<pPolygons->Get_Count()-1 && Set_Progress(iPolygon, pPolygons->Get_Count()-1); iPolygon++)
	{
		CSG_Shape_Polygon	*pA	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(iPolygon);

		for(int jPolygon=iPolygon+1; jPolygon<pPolygons->Get_Count() && Process_Get_Okay(); jPolygon++)
		{
			CSG_Shape_Polygon	*pB	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(jPolygon);

			for(int iPart=0; iPart<pA->Get_Part_Count() && Process_Get_Okay(); iPart++)
			{
				for(int jPart=0; jPart<pB->Get_Part_Count() && Process_Get_Okay(); jPart++)
				{
					if( pA->Get_Part(iPart)->Get_Extent().Intersects(pB->Get_Part(jPart)->Get_Extent()) )
					{
						if( bVertices )
						{
							nAdded	+= Check_Vertices(pA->Get_Part(iPart), pB->Get_Part(jPart), Epsilon);
							nAdded	+= Check_Vertices(pB->Get_Part(jPart), pA->Get_Part(iPart), Epsilon);
						}

						Get_Shared_Edges(pA->Get_Part(iPart), pB->Get_Part(jPart), Epsilon);
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	if( Parameters("DOUBLE")->asBool() )
	{
		for(int iEdge=0, nEdges=m_pEdges->Get_Count(); iEdge<nEdges && Set_Progress(iEdge, nEdges); iEdge++)
		{
			CSG_Shape	*pA	= m_pEdges->Get_Shape(iEdge);
			CSG_Shape	*pB	= m_pEdges->Add_Shape(pA);

			*(pB->Get_Value(0))	= *(pA->Get_Value(1));
			*(pB->Get_Value(1))	= *(pA->Get_Value(0));
		}
	}

	//-----------------------------------------------------
	if( nAdded > 0 || nRemoved > 0 )
	{
		Message_Add(CSG_String::Format(SG_T("\n%s: %d %s, %d %s\n"), _TL("Vertices"),
			nAdded  , _TL("added"  ),
			nRemoved, _TL("removed")
		), false);

		DataObject_Update(pPolygons);
	}

	return( true );
}
Esempio n. 15
0
//---------------------------------------------------------
bool CCRS_Transform_Grid::Set_Target_Area(const CSG_Grid_System &Source, const CSG_Grid_System &Target)
{
	if( Parameters("TARGET_AREA")->asBool() == false )
	{
		m_Target_Area.Destroy();

		return( true );
	}

	//-----------------------------------------------------
	CSG_Rect	r(Source.Get_Extent());

	if( m_Projector.Get_Source().Get_Type() == SG_PROJ_TYPE_CS_Geographic )
	{
		if( r.Get_XMax() > 180.0 )	r.Move(-180.0, 0.0);
		if( r.Get_YMin() < -90.0 )	r.m_rect.yMin	= -90.0;
		if( r.Get_YMax() <  90.0 )	r.m_rect.yMax	=  90.0;
	}

	//-----------------------------------------------------
	CSG_Shapes			Area(SHAPE_TYPE_Polygon);
	CSG_Shape_Polygon	*pArea	= (CSG_Shape_Polygon *)Area.Add_Shape();
	TSG_Point			p, q;
	double				dx	= Source.Get_XRange() / 100.0;
	double				dy	= Source.Get_YRange() / 100.0;

	m_Projector.Set_Inverse(false);

	for(p.x=r.Get_XMin(), p.y=r.Get_YMin(); p.y<r.Get_YMax(); p.y+=dy)
	{
		m_Projector.Get_Projection(q = p);	pArea->Add_Point(q);
	}

	for(p.x=r.Get_XMin(), p.y=r.Get_YMax(); p.x<r.Get_XMax(); p.x+=dx)
	{
		m_Projector.Get_Projection(q = p);	pArea->Add_Point(q);
	}

	for(p.x=r.Get_XMax(), p.y=r.Get_YMax(); p.y>r.Get_YMin(); p.y-=dy)
	{
		m_Projector.Get_Projection(q = p);	pArea->Add_Point(q);
	}

	for(p.x=r.Get_XMax(), p.y=r.Get_YMin(); p.x>r.Get_XMin(); p.x-=dx)
	{
		m_Projector.Get_Projection(q = p);	pArea->Add_Point(q);
	}

	m_Projector.Set_Inverse(true);

	//-----------------------------------------------------
	m_Target_Area.Create(Target, SG_DATATYPE_Char);
	m_Target_Area.Set_NoData_Value(0);

	for(int y=0; y<m_Target_Area.Get_NY() && Set_Progress(y, m_Target_Area.Get_NY()); y++)
	{
		double	yWorld	= Target.Get_yGrid_to_World(y);

		#pragma omp parallel for
		for(int x=0; x<m_Target_Area.Get_NX(); x++)
		{
			m_Target_Area.Set_Value(x, y, pArea->Contains(Target.Get_xGrid_to_World(x), yWorld) ? 1 : 0);
		}
	}

	//-----------------------------------------------------
	return( true );
}
Esempio n. 16
0
//---------------------------------------------------------
bool CSG_Shapes::Make_Clean(void)
{
	if( m_Type != SHAPE_TYPE_Polygon )
	{
		return( true );
	}

	for(int iShape=0; iShape<Get_Count() && SG_UI_Process_Set_Progress(iShape, Get_Count()); iShape++)
	{
		CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)Get_Shape(iShape);

		for(int iPart=0; iPart<pPolygon->Get_Part_Count(); iPart++)
		{
			if( m_Vertex_Type == SG_VERTEX_TYPE_XY )	// currently we have to disable this check for 3D shapefiles since the
														// _Update_Area() method can not handle polygons with no horizontal extent
			{
				//--------------------------------------------
				// ring direction: outer rings > clockwise, inner rings (lakes) > counterclockwise !

				if( (pPolygon->is_Lake(iPart) == pPolygon->is_Clockwise(iPart)) )
				{
					pPolygon->Revert_Points(iPart);
				}
			}

			//--------------------------------------------
			// last point == first point !

			if( !CSG_Point(pPolygon->Get_Point(0, iPart)).is_Equal(pPolygon->Get_Point(pPolygon->Get_Point_Count(iPart) - 1, iPart)) )
			{
				((CSG_Shape *)pPolygon)->Add_Point(pPolygon->Get_Point(0, iPart), iPart);

				if( m_Vertex_Type != SG_VERTEX_TYPE_XY )
				{
					pPolygon->Set_Z(pPolygon->Get_Z(0, iPart), pPolygon->Get_Point_Count(iPart) - 1, iPart);

					if( m_Vertex_Type == SG_VERTEX_TYPE_XYZM )
					{
						pPolygon->Set_M(pPolygon->Get_M(0, iPart), pPolygon->Get_Point_Count(iPart) - 1, iPart);
					}
				}
			}

			//--------------------------------------------
			// no self intersection !

		}
	}

	return( true );
}
Esempio n. 17
0
//---------------------------------------------------------
bool CGrid_Class_Statistics_For_Polygons::On_Execute(void)
{
	//-----------------------------------------------------
	CSG_Grid	*pGrid	= Parameters("GRID")->asGrid();

	CSG_Shapes	*pPolygons	= Parameters("POLYGONS")->asShapes();

	if( pPolygons->Get_Count() <= 0 || !pPolygons->Get_Extent().Intersects(pGrid->Get_Extent()) )
	{
		Error_Set(_TL("no spatial intersection between grid and polygon layer"));

		return( false );
	}

	//-----------------------------------------------------
	if( Parameters("RESULT")->asShapes() != NULL && Parameters("RESULT")->asShapes() != pPolygons )
	{
		Process_Set_Text(_TL("copying polygons"));

		CSG_Shapes	*pResult	= Parameters("RESULT")->asShapes();

		pResult->Create(SHAPE_TYPE_Polygon, CSG_String::Format("%s [%s]", pPolygons->Get_Name(), _TL("Grid Classes")));

		for(int i=0; i<pPolygons->Get_Count() && Set_Progress(i, pPolygons->Get_Count()); i++)
		{
			pResult->Add_Shape(pPolygons->Get_Shape(i), SHAPE_COPY_GEOM);
		}

		pPolygons	= pResult;
	}

	//-----------------------------------------------------
	int	fStart	= pPolygons->Get_Field_Count();

	if( !Get_Classes(pGrid, pPolygons) )
	{
		Error_Set(_TL("undefined grid classes"));

		return( false );
	}

	//-----------------------------------------------------
	bool	bCenter	= Parameters("METHOD")->asInt() == 0;

	Process_Set_Text(_TL("calculating class areas"));

	//-----------------------------------------------------
	int			x, y;
	TSG_Point	p;

	for(y=0, p.y=Get_YMin(); y<Get_NY() && Set_Progress(y); y++, p.y+=Get_Cellsize())
	{
		for(x=0, p.x=Get_XMin(); x<Get_NX(); x++, p.x+=Get_Cellsize())
		{
			if( m_Classes.asInt(x, y) >= 0 )
			{
				int	fClass	= fStart + m_Classes.asInt(x, y);

				#pragma omp parallel for
				for(int i=0; i<pPolygons->Get_Count(); i++)
				{
					CSG_Shape_Polygon	*pPolygon	= (CSG_Shape_Polygon *)pPolygons->Get_Shape(i);

					double	Area	= Get_Intersection(pPolygon, p, bCenter);

					if( Area > 0.0 )
					{
						pPolygon->Add_Value(fClass, Area);
					}
				}
			}
		}
	}

	//-----------------------------------------------------
	m_Classes.Destroy();

	DataObject_Update(pPolygons);

	return( true );
}