I'm trying to render a map context into a BufferedImage using StreamingRenderer. Problem is all the images that i get out of it are completely black. I've been trying to get this to work for a while now and can't seem to find the problem. Any help would be much appreciated.
Here's my rendering code:
protected BufferedImage renderImage(MapContext map, int width, int height) {
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D graphic = image.createGraphics();
Rectangle paintArea = new Rectangle(width, height);
Envelope mapArea = map.getAreaOfInterest();
StreamingRenderer renderer = new StreamingRenderer();
renderer.setContext(map);
RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
renderer.setJava2DHints(hints);
Map<String, Object> rendererParams = new HashMap<String, Object>();
rendererParams.put("optimizedDataLoadingEnabled", true);
renderer.setRendererHints(rendererParams);
renderer.paint(graphic, paintArea, mapArea);
return image;
}
thanks,
joel
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