IsPolygonCCW Class Reference

Checks if the polygons coordinates' orientations are defined counter-clockwise. More...

Inheritance diagram for IsPolygonCCW:

Collaboration diagram for IsPolygonCCW:

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

Detailed Description

Checks if the polygons coordinates' orientations are defined counter-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_isPolygonCCW.stringValue();
        }

References POSTGIS.st_isPolygonCCW.