Hi,
I'm trying to reproject feature sources to a different CRS when
rendering them using a StreamingRenderer. Basically I have the following
pipeline:
DataStore -> SimpleFeatureSource -> Layer -> MapContent
where the MapContent object is drawn using a StreamingRenderer.
now, I'd like to reproject the features that are rendered through this
pipeline, and I wonder what is the intended way of achieving this. I
tried to add a Query with a SetCoordinateSystemReproject to the
FeatureLayer:
Style style = ...
MapContent map = new MapContent();
CoordinateReferenceSystem targetCrs = CRS.decode("EPSG:3416");
SimpleFeaturesource fs = dataStore.getFeatureSource("featureName");
FeatureLayer layer = new FeatureLayer(fs, style);
Query query = new Query(Query.ALL);
query.setCoordinateSystemReproject(targetCrs);
layer.setQuery(query);
map.addLayer(layer);
GTRenderer rendered = new StreamingRenderer();
renderer.setMapContent(map);
renderer.paint(...);
where the original data source CRS is different that the CRS specified
above (it's EPSG:900913). but, the above doesn't have any effect - it
draws the same results as without the query object, whereas the result
should be different, as EPSG:3416 is a Lambert projection.
I wonder what the proper / intended way of doing this is.
Best regards,
Akos
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