public void testPrimFactCRS() throws UnsupportedOperationException, FactoryException { CoordinateReferenceSystem crs = DefaultGeographicCRS.WGS84; GeometryBuilder builder = new GeometryBuilder(crs); CoordinateReferenceSystem crs2 = CRS.parseWKT(crs.toWKT()); GeometryBuilder builder2 = new GeometryBuilder(crs2); // create a list of connected positions List<Position> dps = new ArrayList<Position>(); dps.add(builder.createDirectPosition(new double[] {20, 10})); dps.add(builder.createDirectPosition(new double[] {40, 10})); dps.add(builder.createDirectPosition(new double[] {50, 40})); dps.add(builder.createDirectPosition(new double[] {30, 50})); dps.add(builder.createDirectPosition(new double[] {10, 30})); dps.add(builder.createDirectPosition(new double[] {20, 10})); // create linestring from directpositions LineString line = builder.createLineString(dps); // create curvesegments from line ArrayList<CurveSegment> segs = new ArrayList<CurveSegment>(); segs.add(line); // Create list of OrientableCurves that make up the surface OrientableCurve curve = builder.createCurve(segs); List<OrientableCurve> orientableCurves = new ArrayList<OrientableCurve>(); orientableCurves.add(curve); // create the interior ring and a list of empty interior rings (holes) Ring extRing = builder2.createRing(orientableCurves); List<Ring> intRings = new ArrayList<Ring>(); // create the surfaceboundary from the rings SurfaceBoundary sb = builder2.createSurfaceBoundary(extRing, intRings); // create the surface Surface surface = builder2.createSurface(sb); }