MinimumDiameter Class Reference

Returns the minimum diameter of the given geometry. More...

Inheritance diagram for MinimumDiameter:

Collaboration diagram for MinimumDiameter:

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

Detailed Description

Returns the minimum diameter of the given geometry.

Member Function Documentation

attribute()

double attribute

(

Geometry

geom

)

Reimplemented from GeometricDoubleAttributeFunction.

                                               {
                org.locationtech.jts.algorithm.MinimumDiameter mindiam=new org.locationtech.jts.algorithm.MinimumDiameter(geom);
        return mindiam.getDiameter().getLength();
        }

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());
                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().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_minimumDiameter.stringValue();
        }

References POSTGIS.st_minimumDiameter.