Hi,
I am comparing the rendering performance of Geotools (using Tomcat) against the
Oracle tool MapViewer.
My test shows Geotools is 2-3 times slower than MapViewer.
The same chart view, scale and contents is used (dMinX, dMinY, dMaxX, dMaxY).
Also the same map pixel width/height is used (iSizeX,iSizeY).
What could be the reason for the big difference?
This is the Geotools code that I tried in both GT 2.7.4 as 8.0 RC1:
java.util.Map params = new java.util.HashMap();
params.put( "dbtype", "oracle");
params.put( "alias", "nbgproj2");
params.put( "schema", "gie");
params.put( "user", "nbg_rli61");
params.put( "passwd", "nbg_rli61");
dataStore = new
OracleNGOCIDataStoreFactory().createDataStore(params);
String typeName = "GIE_GEO_KADASTRAAL_PERCEEL";
FeatureSource featureSource = dataStore.getFeatureSource(typeName);
map = new MapContent();
map.setTitle("Ron");
Style style = createPolygonStyle();
Layer layer = new FeatureLayer(featureSource, style);
map.addLayer(layer);
renderer = new StreamingRenderer();
renderer.setMapContent(map);
String file = "c:\\temp\\image.png";
Rectangle imageBounds = new Rectangle(0, 0, iSizeX, iSizeY);
ReferencedEnvelope mapBounds = new ReferencedEnvelope(dMinX, dMaxX,
dMinY, dMaxY, CRS.decode("EPSG:28992"));
BufferedImage image = new BufferedImage(imageBounds.width,
imageBounds.height, BufferedImage.TYPE_INT_RGB);
Graphics2D gr = image.createGraphics();
gr.setPaint(Color.WHITE);
gr.fill(imageBounds);
try {
renderer.paint(gr, imageBounds, mapBounds);
File fileToSave = new File(file);
ImageIO.write(image, "png", fileToSave);
} catch (IOException e) {
throw new RuntimeException(e);
}
Thanks.
Ron
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