File property = new File(TestData.getResource(this, "point.properties").toURI());
PropertyDataStore ds = new PropertyDataStore(property.getParentFile());
FeatureSource fs = ds.getFeatureSource("point");
// prepare a feature layer with a query and the rendering tx
FeatureLayer layer = new FeatureLayer(fs, style);
// prepare a bbox in UTM-32N
ReferencedEnvelope reWgs84 = new ReferencedEnvelope(0, 12, 0, 12, CRS.decode("EPSG:4326"));
ReferencedEnvelope reUTM32N = reWgs84.transform(CRS.decode("EPSG:3857"), true);