Force4D Class Reference

Transforms a geometry to a 4D representation. More...

Inheritance diagram for Force4D:

Collaboration diagram for Force4D:

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

Protected Member Functions
Geometry	operation (Geometry geom)

Detailed Description

Transforms a geometry to a 4D representation.

Member Function Documentation

evaluate()

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

inherited

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

References LiteralRegistry.getLiteral(), and GeometricUnaryFunction.operation().

Referenced by BoundaryTest.testBoundary(), BoundingDiagonalTest.testBoundingDiagonal(), CentroidTest.testCentroid(), StartPointTest.testCircularString(), CircumcentreTest.testCircumcentre1(), CollectionHomogenizeTest.testCollectionHomogenize(), FlipCoordinatesTest.testFlipCoordinates(), Force2DTest.testForce2D(), Force3DTest.testForce3D(), Force3DMTest.testForce3DM(), Force3DMTest.testForce3DM2(), Force4DTest.testForce4D(), ForceCollectionTest.testForceCollection(), ForceCollectionTest.testForceCollectionZ(), ForcePolygonCCWTest.testForcePolygonCCW(), ForcePolygonCWTest.testForcePolygonCW(), EndPointTest.testLineString2D(), StartPointTest.testLineString2D(), EndPointTest.testLineString3D(), StartPointTest.testLineString3D(), MinimumBoundingCircleCenterTest.testMinimumBoundingCircle(), MinimumBoundingCircleTest.testMinimumBoundingCircle(), MinimumClearanceLineTest.testMinimumClearanceLine(), MinimumDiameterLineTest.testMinimumDiameterLine(), MinimumRectangleTest.testMinimumRectangle(), MultiTest.testMulti2D(), MultiTest.testMulti3D(), SelfIntersectionsTest.testNoSelfIntersections(), EndPointTest.testPoint(), StartPointTest.testPoint(), PointsTest.testPoints(), PointsTest.testPoints3D(), ReverseTest.testReverse(), SelfIntersectionsTest.testSelfIntersections(), ShiftLongitudeTest.testShiftLongitude(), SimplifyPreserveTopologyTest.testSimplifyVW(), and TransScaleTest.testTransScale().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_force4d.stringValue();
        }

References POSTGIS.st_force4d.

operation()

Geometry operation ( Geometry  geom )

protected

Reimplemented from GeometricUnaryFunction.

                                                    {
 
            List<Coordinate> newcoords=new ArrayList<Coordinate>();
            for(Coordinate coord:geom.getCoordinates()) {
                newcoords.add(new CoordinateXYZM(coord.x,coord.y,(Double.isNaN(coord.getZ())?0.:coord.getZ()),Double.isNaN(coord.getM())?0.:coord.getM()));
            }         
            return LiteralUtils.createGeometry(newcoords,geom.getGeometryType(),geom.getSRID());                        
        }

References LiteralUtils.createGeometry().