AddPoint Class Reference

Adds geometry two (a point geometry) to geometry one at the last position of the coordinate array. More...

Inheritance diagram for AddPoint:

Collaboration diagram for AddPoint:

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

Protected Member Functions
Geometry	relation (Geometry geom1, Geometry geom2)

Detailed Description

Adds geometry two (a point geometry) to geometry one at the last position of the coordinate array.

Member Function Documentation

evaluate()

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

inherited

                                                                                                            {
                if (args.length != 2) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 2 arguments, got " + args.length);
                }
 
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                LiteralType l2=LiteralRegistry.getLiteral(((Literal)args[1]).getDatatype().toString());
                if(l instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        Geometry geom2=((VectorLiteral)l2).read(args[1].stringValue());
                        Geometry transformed=LiteralUtils.transform(geom2, geom);
                        Geometry result = relation(geom,transformed);
                        return valueFactory.createLiteral(((VectorLiteral) l).unparse(result),((Literal)args[0]).getDatatype());
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
        }

References LiteralRegistry.getLiteral(), GeometricModifierFunction.relation(), and LiteralUtils.transform().

Referenced by AddGeometryTest.testAddGeometry(), AddGeometryTest.testAddGeometryZ(), AddPointTest.testAddPoint(), AddPointTest.testAddPointZ(), AddRingTest.testAddRing(), ClosestPointTest.testClosestPoint(), FurthestCoordinateTest.testFurthestCoordinate(), SetEndPointTest.testSetEndPoint(), and SetStartPointTest.testSetStartPoint().

getURI()

String getURI

(

)

                               {
                return POSTGIS.ST_ADDPOINT.stringValue();
        }

References POSTGIS.ST_ADDPOINT.

relation()

Geometry relation ( Geometry  geom1, Geometry  geom2  )

protected

Reimplemented from GeometricModifierFunction.

                                                                    {
                Coordinate[] coords=geom1.getCoordinates();
        Point point = ((Point) geom2);
        List<Coordinate> newcoords=new LinkedList<Coordinate>();
        for(int i=0;i<coords.length;i++) {
                newcoords.add(coords[i]);
        }
        System.out.println(newcoords);
        newcoords.add(point.getCoordinate());
        return LiteralUtils.createGeometry(newcoords, geom1.getGeometryType(), geom1.getSRID());
    }

References LiteralUtils.createGeometry().