IsPolygonCW Class Reference

Returns true if all exterior rings are oriented clockwise and all interior rings are oriented clockwise. More...

Inheritance diagram for IsPolygonCW:

Collaboration diagram for IsPolygonCW:

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

Detailed Description

Returns true if all exterior rings are oriented clockwise and all interior rings are oriented clockwise.

Member Function Documentation

attribute()

boolean attribute

(

Geometry

geom

)

Reimplemented from GeometricBinaryAttributeFunction.

                                                {
             if (geom instanceof Polygon) {
                 return !Orientation.isCCW(geom.getCoordinates());
             }
             return false;
        }

evaluate()

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

inherited

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }
                
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                System.out.println(l);
                if(l instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        boolean result = attribute(geom);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
 
        }

References GeometricBinaryAttributeFunction.attribute(), and LiteralRegistry.getLiteral().

Referenced by IsCollectionTest.testGeometryCollectionIsCollection(), HasConnectedInteriorTest.testHasConnectedInteriorFalse(), HasConnectedInteriorTest.testHasConnectedInteriorTrue(), HasDuplicateRingsTest.testHasDuplicateRingsFalse(), HasDuplicateRingsTest.testHasDuplicateRingsTrue(), HasHorizontalCRSTest.testHasHorizontalCRSFalse(), HasHorizontalCRSTest.testHasHorizontalCRSTrue(), HasRepeatedPointsTest.testHasRepeatedPoints(), HasRepeatedPointsTest.testHasRepeatedPoints2(), HasSelfIntersectionsTest.testHasSelfIntersectionsFalse(), HasSelfIntersectionsTest.testHasSelfIntersectionsTrue(), Is3DTest.testIs3DFalse(), IsAcuteTest.testIsAcuteFalse(), IsAcuteTest.testIsAcuteTrue(), IsConvexTest.testIsConvexFalse(), IsConvexTest.testIsConvexTrue(), IsEmptyTest.testIsEmptyFalse(), IsEmptyTest.testIsEmptyTrue(), IsEquilateralTriangleTest.testIsEquilateralTriangleFalse(), IsEquilateralTriangleTest.testIsEquilateralTriangleTrue(), IsIsocelesTriangleTest.testIsIsocelesTriangleFalse(), IsIsocelesTriangleTest.testIsIsocelesTriangleTrue(), IsMeasuredTest.testIsMeasuredFalse(), IsMeasuredTest.testIsMeasuredTrue(), IsNodingValidTest.testIsNodingValuedTrue(), IsObliqueTriangleTest.testIsObliqueTriangleFalse(), IsObtuseTriangleTest.testIsObliqueTriangleFalse(), IsObliqueTriangleTest.testIsObliqueTriangleTrue(), IsObtuseTriangleTest.testIsObliqueTriangleTrue(), IsPlanarTest.testIsPlanarTrue(), IsPolygonCCWTest.testIsPolygonCCWFalse(), IsPolygonCCWTest.testIsPolygonCCWTrue(), IsPolygonCWTest.testIsPolygonCWFalse(), IsPolygonCWTest.testIsPolygonCWTrue(), IsRectangleTest.testIsRectangleFalse(), IsRectangleTest.testIsRectangleTrue(), IsRightTriangleTest.testIsRightTriangleFalse(), IsRightTriangleTest.testIsRightTriangleTrue(), IsSolidTest.testIsSolidFalse(), IsSquareTest.testIsSquareFalse(), IsSquareTest.testIsSquareTrue(), IsTriangleTest.testIsTriangleFalse(), IsTriangleTest.testIsTriangleTrue(), IsValidTest.testIsValidFalse(), IsValidTest.testIsValidTrue(), IsClosedTest.testLineStringClosed(), IsCollectionTest.testLineStringIsCollection(), IsRingTest.testLineStringIsNotRing(), IsRingTest.testLineStringIsRing(), IsClosedTest.testLineStringNotClosed(), IsCollectionTest.testMultiLineStringIsCollection(), IsClosedTest.testMultiLineStringNotClosed(), IsClosedTest.testmultiPointClosed(), IsCollectionTest.testMultiPointIsCollection(), IsCollectionTest.testMultiPolygonIsCollection(), IsClosedTest.testpointClosed(), IsCollectionTest.testPointIsCollection(), IsCollectionTest.testPolygonIsCollection(), SridHasFlippedAxisTest.testSridHasFlippedAxis(), SridIsGeographicTest.testSridIsGeographicFalse(), SridIsGeographicTest.testSridIsGeographicTrue(), SridIsProjectedTest.testSridIsProjectedTrue(), and SridIsVerticalTest.testSridIsVerticalTrue().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_isPolygonCW.stringValue();
        }

References POSTGIS.st_isPolygonCW.