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From: Martin D. <mar...@ge...> - 2007-05-15 15:57:16
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新买 a écrit : > As Adrian refered, I know Mercator cann't act when the point close > to 90 N or 90 S. My appologizes for looking rude in my third email then... > Or can you tell me how to refer a clip region to render map, such as > > MapPainter mapPainter = new MapPainter(shpMap); > mapPainter.render(85, -180, 80, -85, "test.png"); On the rendering side, I can't said. As far as the "referencing" module is concerned, if you used an ellipsoidal datum, it may be worth to try a spherical case instead since the spherical formulas are simplier. I don't know how you CRS were created (EPSG code? WKT?), but if it was from WKT, try an "inverse flattening" value (in the ELLIPSOID[...] element) of 0. Martin |