/**
* @param envelope
* @param width
* @param height
* @return
* @throws ThinklabResourceNotFoundException
*/
private BufferedImage getWMSImage(Envelope envelope, int width, int height)
throws ThinklabResourceNotFoundException {
BufferedImage ret = null;
initializeWms();
String sig = envelope.toString() + "," + width + "," + height;
if (_cache.containsKey(sig)) return ImageUtil.clone(_cache.get(sig));
if (_wms != null) {
GetMapRequest request = _wms.createGetMapRequest();
request.setFormat("image/png");
request.setDimensions("" + width, "" + height);
request.setTransparent(true);
// FIXME this assumes the envelope is in lat/lon
request.setSRS("EPSG:4326");
String bbox =
(float) envelope.getMinX()
+ ","
+ (float) envelope.getMinY()
+ ","
+ (float) envelope.getMaxX()
+ ","
+ (float) envelope.getMaxY();
request.setBBox(bbox);
for (Layer layer : getWMSLayers()) {
request.addLayer(layer);
}
GetMapResponse response = null;
try {
System.out.println(request.getFinalURL());
response = (GetMapResponse) _wms.issueRequest(request);
ret = ImageIO.read(response.getInputStream());
} catch (Exception e) {
Geospace.get().logger().warn("cannot get WFS imagery: " + e.getLocalizedMessage());
return null;
}
/*
* FIXME this obviously must have a limit
*/
if (ret != null) _cache.put(sig, ImageUtil.clone(ret));
}
return ret;
}
