Examples of com.vividsolutions.jts.geom.PrecisionModel

com.vividsolutions.jts.geom.PrecisionModel
Specifies the precision model of the {@link Coordinate}s in a {@link Geometry}. In other words, specifies the grid of allowable points for all Geometrys.
The {@link makePrecise} method allows rounding a coordinate toa "precise" value; that is, one whose precision is known exactly.
Coordinates are assumed to be precise in geometries. That is, the coordinates are assumed to be rounded to the precision model given for the geometry. JTS input routines automatically round coordinates to the precision model before creating Geometries. All internal operations assume that coordinates are rounded to the precision model. Constructive methods (such as boolean operations) always round computed coordinates to the appropriate precision model.
Currently three types of precision model are supported:
- FLOATING - represents full double precision floating point. This is the default precision model used in JTS
- FLOATING_SINGLE - represents single precision floating point.
- FIXED - represents a model with a fixed number of decimal places. A Fixed Precision Model is specified by a scale factor. The scale factor specifies the size of the grid which numbers are rounded to. Input coordinates are mapped to fixed coordinates according to the following equations:
  - jtsPt.x = round( (inputPt.x * scale ) / scale
  - jtsPt.y = round( (inputPt.y * scale ) / scale
For example, to specify 3 decimal places of precision, use a scale factor of 1000. To specify -3 decimal places of precision (i.e. rounding to the nearest 1000), use a scale factor of 0.001.
Coordinates are represented internally as Java double-precision values. Since Java uses the IEEE-394 floating point standard, this provides 53 bits of precision. (Thus the maximum precisely representable integer is 9,007,199,254,740,992).
JTS methods currently do not handle inputs with different precision models. @version 1.7

    LinearRing gwtRing2 = gwtFactory.createLinearRing(new Coordinate[] { new Coordinate(10.0, 20.0),
        new Coordinate(30.0, 10.0), new Coordinate(40.0, 10.0), new Coordinate(10.0, 20.0) });
    Polygon gwtPolygon2 = gwtFactory.createPolygon(gwtRing2, null);
    gwt = gwtFactory.createMultiPolygon(new Polygon[] { gwtPolygon1, gwtPolygon2 });


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    com.vividsolutions.jts.geom.LinearRing jtsRing1 = jtsFactory
        .createLinearRing(new com.vividsolutions.jts.geom.Coordinate[] {
            new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0),
            new com.vividsolutions.jts.geom.Coordinate(20.0, 10.0),
            new com.vividsolutions.jts.geom.Coordinate(20.0, 20.0),

View Full Code Here

        new Coordinate(20.0, 10.0), new Coordinate(20.0, 20.0) });
    LineString gwtLine2 = gwtFactory.createLineString(new Coordinate[] { new Coordinate(10.0, 20.0),
        new Coordinate(30.0, 10.0), new Coordinate(40.0, 10.0) });
    gwt = gwtFactory.createMultiLineString(new LineString[] { gwtLine1, gwtLine2 });


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    com.vividsolutions.jts.geom.LineString jtsLine1 = jtsFactory
        .createLineString(new com.vividsolutions.jts.geom.Coordinate[] {
            new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0),
            new com.vividsolutions.jts.geom.Coordinate(20.0, 10.0),
            new com.vividsolutions.jts.geom.Coordinate(20.0, 20.0) });

View Full Code Here

    Point point1 = gwtFactory.createPoint(new Coordinate(10.0, 10.0));
    Point point2 = gwtFactory.createPoint(new Coordinate(10.0, 20.0));
    Point point3 = gwtFactory.createPoint(new Coordinate(20.0, 20.0));
    gwt = gwtFactory.createMultiPoint(new Point[] {point1, point2, point3});


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    jts = jtsFactory.createMultiPoint(new com.vividsolutions.jts.geom.Coordinate[] {
        new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0),
        new com.vividsolutions.jts.geom.Coordinate(10.0, 20.0),
        new com.vividsolutions.jts.geom.Coordinate(20.0, 20.0)});
  }

View Full Code Here

    Injector myInjector = Guice.createInjector(new GeomajasTestModule());
    gwtFactory = myInjector.getInstance(GeometryFactory.class);
    gwt = gwtFactory.createLinearRing(new Coordinate[] { new Coordinate(10.0, 10.0), new Coordinate(20.0, 10.0),
        new Coordinate(20.0, 20.0), new Coordinate(10.0, 10.0) });


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    jts = jtsFactory.createLinearRing(new com.vividsolutions.jts.geom.Coordinate[] {
        new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0),
        new com.vividsolutions.jts.geom.Coordinate(20.0, 10.0),
        new com.vividsolutions.jts.geom.Coordinate(20.0, 20.0),
        new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0) });

View Full Code Here

    Injector myInjector = Guice.createInjector(new GeomajasTestModule());
    gwtFactory = myInjector.getInstance(GeometryFactory.class);
    gwt = gwtFactory.createPoint(new Coordinate(10.0, 10.0));
    empty = gwtFactory.createPoint(null);


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    jts = jtsFactory.createPoint(new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0));
  }

View Full Code Here

    gwtFactory = myInjector.getInstance(GeometryFactory.class);
    gwt = gwtFactory.createLineString(new Coordinate[] { new Coordinate(10.0, 10.0), new Coordinate(20.0, 10.0),
        new Coordinate(20.0, 20.0) });
    empty = gwtFactory.createLineString(null);


    jtsFactory = new com.vividsolutions.jts.geom.GeometryFactory(new PrecisionModel(), SRID);
    jts = jtsFactory.createLineString(new com.vividsolutions.jts.geom.Coordinate[] {
        new com.vividsolutions.jts.geom.Coordinate(10.0, 10.0),
        new com.vividsolutions.jts.geom.Coordinate(20.0, 10.0),
        new com.vividsolutions.jts.geom.Coordinate(20.0, 20.0) });
  }

View Full Code Here

            }
            
            if(tripPattern.shape != null) {
              
              MathTransform mt = GeoUtils.getTransform(new Coordinate(tripPattern.shape.shape.getCoordinateN(0).y, tripPattern.shape.shape.getCoordinateN(0).x));
              GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
              
              Coordinate[] mCoords =  tripPattern.shape.shape.getCoordinates();
              ArrayList<Coordinate> coords = new ArrayList<Coordinate>(); 
              
              for(Coordinate mCoord : mCoords) {

View Full Code Here

      mergedStop.delete();
      
    }


    public void setLocation(Hashtable<String, Double> loc) {
        GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
        this.location = geometryFactory.createPoint(new Coordinate(loc.get("lng"), loc.get("lat")));;
    }

View Full Code Here

    }
       
    public Point locationPoint() {
   
      Hashtable<String, Double> loc = this.getLocation();
      GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
        return geometryFactory.createPoint(new Coordinate(loc.get("lng"), loc.get("lat")));
    }

View Full Code Here

        this.stopName = stopName;
        this.stopDesc = stopDesc;
        this.stopUrl = stopUrl;
        this.locationType = LocationType.STOP;


        GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);


        this.location = geometryFactory.createPoint(new Coordinate(lon, lat));;
    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of com.vividsolutions.jts.geom.PrecisionModel

com.vividsolutions.jtstest.function.PolygonOverlayFunctions

com.vividsolutions.jtstest.testbuilder.PrecisionModelPanel

com.vividsolutions.jtstest.testbuilder.Viewport

models.transit.Stop

org.geomajas.dojo.server.json.DtoGeometrySerializerTest

org.geomajas.dojo.server.json.GeometrySerializer

org.geomajas.dojo.server.json.GeometrySerializerTest

org.geomajas.internal.security.SecurityContextAreaAuthorizationTest

org.geomajas.internal.service.DtoConverterServiceImpl

org.geomajas.internal.service.GeoServiceTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.