AsX3D Class Reference

Inheritance diagram for AsX3D:

Collaboration diagram for AsX3D:

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

Package Attributes
String	header
String	footer ="</Shape></Scene></X3D>"

Member Function Documentation

evaluate()

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

inherited

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

                                                                                                            {
                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());
                        String result = operation(geom);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
                
        }

getURI()

String getURI

(

)

References POSTGIS.ST_ASX3D.

                                               {
                                // TODO Auto-generated method stub
                                return POSTGIS.ST_ASX3D.stringValue();
                        }

operation()

String operation

(

Geometry

geom

)

References AsX3D.footer, and AsX3D.header.

                                               {
        StringBuilder builder=new StringBuilder();
        builder.append("<IndexedFaceSet coordIndex=\"");
        Integer index=0;
        for(Coordinate coord:geom.getCoordinates()) {
                builder.append(index.toString());
                index++;
        }
        builder.append("</IndexedFaceSet>");
        builder.append("<Coordinate point=\"");
        for(Coordinate coord:geom.getCoordinates()) {
                builder.append(coord.getX()+" "+coord.getY()+" "+coord.getZ()+" ");
        }
        builder.append("\"/>");
        return header+builder.toString()+footer;
        }

Member Data Documentation

footer

String footer ="</Shape></Scene></X3D>"

package

Referenced by AsX3D.operation().

header

String header

package

Initial value:

="<?xml version=\"1.0\" encoding=\"UTF-8\"?>"+
                        "<!DOCTYPE X3D PUBLIC \"ISO//Web3D//DTD X3D 3.2//EN\""+
                          "http://www.web3d.org/specifications/x3d-3.2.dtd\"><Scene><Shape>"

Referenced by AsX3D.operation().