Hi Andrea,
the WKT2Reader has a bug there, the fix is a one liner, but I have to add a
few tests.
You can monitor progress here:
https://osgeo-org.atlassian.net/browse/GEOT-5425
Cheers
Andrea
On Wed, May 25, 2016 at 4:59 PM, Andrea Lai <[email protected]> wrote:
> Hi,
>
>
>
> I am new to geotools. (windows 8.1 – geotols 14.2)
>
>
>
> I am trying to parse this string (WKTReader2)
>
>
>
> "MULTISURFACE (
>
> ((0 0, 1 0, 1 4, 0 0)),
>
> CURVEPOLYGON (COMPOUNDCURVE (CIRCULARSTRING (0 2, 7 5, 2 10), (2 10, 0 2)),
>
> COMPOUNDCURVE (CIRCULARSTRING (3 9, 6 5, 3 2), (3 2, 3 9))))"
>
>
>
> to use it as a Custom WKT Shapes “wkt://” from geoserver
>
>
> “http://docs.geoserver.org/2.8.x/en/user/styling/sld-extensions/pointsymbols.html”
>
>
>
> But I got this Excepiton
>
>
>
>
>
> Exception in thread "main" com.vividsolutions.jts.io.ParseException:
> Expected EMPTY or ( but found '0'
>
> at org.geotools.geometry.jts.WKTReader2.parseError(WKTReader2.java:352)
>
> at
> org.geotools.geometry.jts.WKTReader2.getNextEmptyOrOpener(WKTReader2.java:265)
>
> at org.geotools.geometry.jts.WKTReader2.getCoordinates(WKTReader2.java:168)
>
> at
> org.geotools.geometry.jts.WKTReader2.readLinearRingText(WKTReader2.java:567)
>
> at
> org.geotools.geometry.jts.WKTReader2.readPolygonText(WKTReader2.java:663)
>
> at
> org.geotools.geometry.jts.WKTReader2.readMultiSurfaceText(WKTReader2.java:778)
>
> at
> org.geotools.geometry.jts.WKTReader2.readGeometryTaggedText(WKTReader2.java:420)
>
> at org.geotools.geometry.jts.WKTReader2.read(WKTReader2.java:151)
>
> at org.geotools.geometry.jts.WKTReader2.read(WKTReader2.java:120)
>
> at org.geotools.TestMultiSurface.main(TestMultiSurface.java:120)
>
>
>
>
>
> *I WROTE THIS PROGRAM*
>
>
>
> package org.geotools;
>
>
>
> import com.vividsolutions.jts.geom.*;
>
> import com.vividsolutions.jts.geom.impl.PackedCoordinateSequence;
>
> import com.vividsolutions.jts.io.ParseException;
>
> import org.geotools.geometry.jts.*;
>
>
>
> import java.io.IOException;
>
> import java.util.ArrayList;
>
> import java.util.List;
>
>
>
> /**
>
> * Created by alai on 25/05/2016.
>
> test in POSTGIS:
>
> SELECT ST_Area
>
> (ST_WKTToSQL ('MULTISURFACE (
>
> ((0 0, 1 0, 1 4, 0
> 0)),
>
> CURVEPOLYGON (COMPOUNDCURVE
> (CIRCULARSTRING (0 2, 7 5, 2 10), (2 10, 0 2)),
>
> COMPOUNDCURVE
> (CIRCULARSTRING (3 9, 6 5, 3 2), (3 2, 3 9))))'));
>
>
>
> postgisArea = 31.1602165357206
>
> */
>
>
>
> public class TestMultiSurface {
>
> public static void main(String[] args) throws ParseException,
> IOException {
>
> GeometryFactory geometryFactory =
> JTSFactoryFinder.getGeometryFactory();
>
> CurvedGeometryFactory curvedFactory = new
> CurvedGeometryFactory(geometryFactory, Double.MAX_VALUE);
>
>
>
> // B: - arc+line = exterior CounterClockwise
>
> PackedCoordinateSequence coords_arc_B = new
> PackedCoordinateSequence.Double(
>
> new double[]{0, 2, 7, 5, 2, 10}, 2);
>
>
>
> Coordinate[] coords_line_B = new Coordinate[]{new Coordinate(2,
> 10), new Coordinate(0, 2)};
>
>
>
> CircularString arc_B = (CircularString)
> curvedFactory.createCurvedGeometry(coords_arc_B);
>
> LineString line_B =
> geometryFactory.createLineString(coords_line_B);
>
>
>
> List<LineString> list_B = new ArrayList<>();
>
> list_B.add(arc_B);
>
> list_B.add(line_B);
>
>
>
> CompoundRing ring_B = (CompoundRing)
> curvedFactory.createCurvedGeometry(list_B);
>
>
>
> // C: - arc+line = holes Clockwise
>
> PackedCoordinateSequence coords_arc_C = new
> PackedCoordinateSequence.Double(
>
> new double[]{3, 9, 6, 5, 3, 2}, 2);
>
>
>
> Coordinate[] coords_line_C = new Coordinate[]
>
> {new Coordinate(3, 2), new Coordinate(3, 9)};
>
>
>
> CircularString arc_C = (CircularString)
> curvedFactory.createCurvedGeometry(coords_arc_C);
>
> LineString line_C =
> geometryFactory.createLineString(coords_line_C);
>
>
>
> List<LineString> list_C = new ArrayList<>();
>
> list_C.add(arc_C);
>
> list_C.add(line_C);
>
>
>
> CompoundRing ring_C = (CompoundRing)
> curvedFactory.createCurvedGeometry(list_C);
>
>
>
> // curve polygon BC
>
> Polygon poly_BC = curvedFactory.createCurvePolygon(ring_B, new
> LinearRing[]{ring_C});
>
>
>
> // A: polygon
>
> Coordinate[] coords_poly_A = new Coordinate[]
>
> {new Coordinate(0, 0), new Coordinate(1, 0), new
> Coordinate(1, 4), new Coordinate(0, 0)};
>
>
>
> Polygon poly_A = geometryFactory.createPolygon(coords_poly_A);
>
>
>
> // MultiSurface_A_BC
>
> List<Polygon> polygons = new ArrayList<>();
>
> polygons.add(poly_A);
>
> polygons.add(poly_BC);
>
>
>
> MultiSurface multiSurface_A_BC = (MultiSurface)
> curvedFactory.createMultiSurface(polygons);
>
>
>
> // write
>
> WKTWriter2 wktWriter2 = new WKTWriter2();
>
> String WKT2 = wktWriter2.write(multiSurface_A_BC);
>
>
>
> // reader
>
> WKTReader2 wktReader2 = new WKTReader2(curvedFactory);
>
>
>
> // CREATE EXCEPTION -> NOT WORKING
>
> MultiSurface multisurface_from_wkt2 = (MultiSurface)
> wktReader2.read(WKT2);// ERROR
>
>
>
> System.out.println("multiSurface_A_BC: valid? = " +
> multiSurface_A_BC.isValid());
>
> System.out.println("Area = " + multiSurface_A_BC.getArea()); //
> Area = 31.110026267242873
>
> System.out.println("\n" +
> wktWriter2.writeFormatted(multiSurface_A_BC));
>
> }
>
> }
>
> *Thanks*
>
> *Andrea Lai*
>
>
>
>
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--
==
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==
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
Via di Montramito 3/A
55054 Massarosa (LU)
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