Hello again,
another method I am trying to use to create a polygon is:
Hints hints = new Hints();
hints.put(Hints.CRS, DefaultGeographicCRS.WGS84);
geometryFactory = JTSFactoryFinder.getGeometryFactory(hints);
simpleFeatureTypeBuilder.add("geometry", Polygon.class);
simpleFeatureTypeBuilder.setName("polygon");
SimpleFeatureType type =
simpleFeatureTypeBuilder.buildFeatureType();
Coordinate[] coords = new Coordinate[5];
double x0, y0, dx, dy;
x0 = re.getMinX();
y0 = re.getMinY();
dx = re.getWidth();
dy = re.getHeight();
coords[0] = new Coordinate(x0, y0);
coords[1] = new Coordinate(x0, y0 + dy);
coords[2] = new Coordinate(x0 + dx, y0 + dy);
coords[3] = new Coordinate(x0 + dx, y0);
coords[4] = coords[0];
Polygon polygon =
geometryFactory.createPolygon(geometryFactory.createLinearRing(coords),
null);
SimpleFeature feature = SimpleFeatureBuilder.build( type, new
Object[]{ polygon }, null);
but when I try to access crs of the feature it gives me null (i.e.
feature.getFeatureType().getCoordinateReferenceSystem()),
and as a consequence I get the following error while trying to draw it:
Mar 30, 2011 2:08:16 PM org.geotools.map.MapContext getLayerBounds
SEVERE: It was not possible to get a projected bounds estimate
But it is drawn ok.
And while we are at this, how can I specify bounds of MapContext in
coordinates, for example, if I want it to have an extent
-180, 180; -90, 90 ?
thank you very much
--
Oleksandr Huziy
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