We use JTS by default which does not have a multi surface implementation.
There is an optional gt-geometry implementation you can try in unsupported
which provides a limited ISO19107 implementation.
--
Jody Garnett
On 25 May 2016 at 07:59, 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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>
>
------------------------------------------------------------------------------
Mobile security can be enabling, not merely restricting. Employees who
bring their own devices (BYOD) to work are irked by the imposition of MDM
restrictions. Mobile Device Manager Plus allows you to control only the
apps on BYO-devices by containerizing them, leaving personal data untouched!
https://ad.doubleclick.net/ddm/clk/304595813;131938128;j
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