GeometricDoubleAttributeFunction Class Reference

Inheritance diagram for GeometricDoubleAttributeFunction:

Collaboration diagram for GeometricDoubleAttributeFunction:

Public Member Functions
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException
abstract double	attribute (Geometry geom)

Member Function Documentation

attribute()

abstract double attribute ( Geometry  geom )

abstract

Reimplemented in Circularity, ZMin, ZMax, Z, YMin, YMax, Y, XMin, XMax, X, MMin, MMax, M, LineLength3D, Perimeter3D, Perimeter, MinimumDiameter, MinimumClearance, MinimumBoundingRadius, Length3D, Length, CompactnessRatio, Area3D, and Area.

Referenced by GeometricDoubleAttributeFunction.evaluate().

evaluate()

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

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

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

Referenced by AreaTest.testArea(), CompactnessRatioTest.testCompactnessRatio(), CompactnessRatioTest.testCompactnessRatioNaN(), CircularityTest.testIsScaleneTriangleFalse(), CircularityTest.testIsScaleneTriangleTrue(), LengthTest.testLineString(), MTest.testM(), MinimumBoundingRadiusTest.testMinimumBoundingRadius(), MinimumClearanceTest.testMinimumClearance(), MinimumDiameterTest.testMinimumDiameter(), MaxMTest.testMMax(), MinMTest.testMMin(), PerimeterTest.testPerimeter(), XTest.testX(), MaxXTest.testXMax(), MinXTest.testXMin(), YTest.testY(), MaxYTest.testYMax(), MinYTest.testYMin(), ZTest.testZ(), MaxZTest.testZMax(), and MinZTest.testZMin().