Re: [Geotools-gt2-users] How to add polygons on existing map?

[Boided <ric...@gm...>]

Hi guys,
           I tried the above example for adding the polygon on a map.. but
my new layer is not getting displayed on the map.. instead the point is
displayed when i click reset and that too out of the map..
what could be the reason for this? below is the code..

 public static Layer getPointLayer(double latitude, double longitude) throws
ParseException, SchemaException {
        final SimpleFeatureType TYPE = DataUtilities.createType(
                "Location", // <- the name for our feature type
                "location:Point:srid=4326," + // <- the geometry attribute:
Point type
                "name:String" // <- a String attribute
                );
        GeometryFactory geometryFactory =
JTSFactoryFinder.getGeometryFactory();
        SimpleFeatureCollection features =
FeatureCollections.newCollection();

        float lat = (float) latitude;
        float lng = (float) longitude;

        SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
        builder.setName("Location");
        builder.setCRS(DefaultGeographicCRS.WGS84); // <- Coordinate
reference system

        builder.add("Location", Point.class);
        builder.length(15).add("Name", String.class); // <- 15 chars width
for name field

        SimpleFeatureBuilder featureBuilder = new
SimpleFeatureBuilder(TYPE);

        com.vividsolutions.jts.geom.Point point =
geometryFactory.createPoint(new Coordinate(lng, lat));
        featureBuilder.add(point);
        featureBuilder.add("abc");
        SimpleFeature feature = featureBuilder.buildFeature(null);
        features.add(feature);
        Style style = SLD.createPointStyle("circle", Color.BLUE, Color.BLUE,
0.3f, 30);
        Layer pointLayer = new FeatureLayer(features, style);
        return pointLayer;

    }



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