EqualsTopo Class Reference

Returns true if two geometries are topologically equal. More...

Inheritance diagram for EqualsTopo:

Collaboration diagram for EqualsTopo:

Public Member Functions
String	getURI ()
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Protected Member Functions
boolean	relation (Geometry g1, Geometry g2)

Detailed Description

Returns true if two geometries are topologically equal.

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_equalsTopo.stringValue();
        }

References POSTGIS.st_equalsTopo.

relation()

boolean relation ( Geometry  g1, Geometry  g2  )

protected

Reimplemented from GeometricRelationBinaryFunction.

                                                             {
                return g1.equalsTopo(g2);
        }