IsPointInRing Class Reference

Checks if a given point is included in a given ring. More...

Inheritance diagram for IsPointInRing:

Collaboration diagram for IsPointInRing:

Public Member Functions
boolean	relation (Geometry ringgeom, Geometry pointgeom)
String	getURI ()
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Detailed Description

Checks if a given point is included in a given ring.

Member Function Documentation

evaluate()

Value evaluate ( ValueFactory  valueFactory, Value...  args  ) throws ValueExprEvaluationException

inherited

                                                                                                            {
                if (args.length != 2) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 2 arguments, got " + args.length);
                }       
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                LiteralType l2=LiteralRegistry.getLiteral(((Literal)args[1]).getDatatype().toString());
                if(l instanceof VectorLiteral && l2 instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        Geometry geom2=((VectorLiteral)l2).read(args[1].stringValue());
                        Geometry transformed=LiteralUtils.transform(geom2, geom);
                        boolean result = relation(geom,transformed);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Arguments given are not a geometry literal");
                
        }

References LiteralRegistry.getLiteral(), GeometricRelationBinaryFunction.relation(), and LiteralUtils.transform().

Referenced by BBOXAboveTest.testBBOXAbove(), BBOXAboveTest.testBBOXAbove1(), BBOXBelowTest.testBBOXBelow(), BBOXBelowTest.testBBOXBelow1(), BBOXContainsTest.testBBOXContainsFalse(), BBOXContainsTest.testBBOXContainsTrue(), BBOXEqualsTest.testBBOXEqualsFalse(), BBOXEqualsTest.testBBOXEqualsTrue(), BBOXIntersectsTest.testBBOXIntersectsFalse(), BBOXIntersectsTest.testBBOXIntersectsTrue(), BBOXIsContainedByTest.testBBOXIsContainedByFalse(), BBOXIsContainedByTest.testBBOXIsContainedByTrue(), BBOXLeftOfTest.testBBOXLeftOf(), BBOXLeftOfTest.testBBOXLeftOf1(), BBOXOverlapsLeftTest.testBBOXLeftOfFalse(), BBOXOverlapsLeftTest.testBBOXLeftOfTrue(), BBOXOverlapsRightTest.testBBOXRightOf(), BBOXRightOfTest.testBBOXRightOf(), BBOXOverlapsRightTest.testBBOXRightOf1(), BBOXRightOfTest.testBBOXRightOf1(), EqualTypeTest.testEqual(), EqualNormTest.testEqualNormFalse(), EqualNormTest.testEqualNormTrue(), EqualSRSTest.testEqualSRS(), EqualTopoTest.testEqualTopoFalse(), EqualTopoTest.testEqualTopoTrue(), EqualSRSTest.testNoSRS(), EqualTypeTest.testNotEqual(), EqualSRSTest.testNotEqualSRS(), OrderingEqualsTest.testOrderingEquals1(), OrderingEqualsTest.testOrderingEquals2(), and OrderingEqualsTest.testOrderingEquals3().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_isPointInRing.stringValue();
        }

References POSTGIS.st_isPointInRing.

relation()

boolean relation	(	Geometry	ringgeom,
		Geometry	pointgeom
	)

Reimplemented from GeometricRelationBinaryFunction.

                                                                      {
        CGAlgorithms algos=new CGAlgorithms();
        return algos.isPointInRing(pointgeom.getCoordinate(), ringgeom.getCoordinates());
        }