AsGeometry Class Reference

Inheritance diagram for AsGeometry:

Collaboration diagram for AsGeometry:

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

Member Function Documentation

construct()

Geometry construct

(

GridCoverage

input

)

Reimplemented from RasterGeometryConversionFunction.

                                                      {
                //PolygonExtracter extractor = new PolygonExtracter(null);
                // TODO Auto-generated method stub
                return null;
        }

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());
                GridCoverage coverage=((RasterLiteral)l).read(args[0].stringValue());
                Geometry result = construct(coverage);
                return valueFactory.createLiteral(((VectorLiteral) l).unparse(result),((Literal)args[0]).getDatatype());
        }

References RasterGeometryConversionFunction.construct(), and LiteralRegistry.getLiteral().

getURI()

String getURI

(

)

                               {
                // TODO Auto-generated method stub
                return null;
        }