def LatLonToPixels(self, lat, lon, zoom):

		res = 180 / 256.0 / 2**zoom
		px = (180 + lat) / res
		py = (90 + lon) / res
		return px, py
Converts lat/lon to pixel coordinates in given zoom of the EPSG:4326 pyramid
dataset/ETHPy150Open Ecotrust/create-utfgrids/globalmaptiles.py/GlobalGeodetic.LatLonToPixels