I have this problem accessing to the coordinate reference system(crs) of a raster layer map. I wonder if such thing is possible? I have used this xml from GDAL open map service to load in a raster layer(crs id 900913) to my stand-alone pyqgis application (http://www.gdal.org/frmt_wms_googlemaps_tms.xml) It displays the map just fine, but when I tried to draw an icon at a specific lat long position (crs id 4326), the icon appeared weirdly. I used the QgsCoordinateTransform class to convert the coordinates. Please advise me what I should do to get it right? I am very new to pyqgis. Thanks a ton!
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