Kuja, In order to create a valid custom projection, your proj4 string must have an ellps entry. Be sure that you are using the correct proj4 string format.
http://www.remotesensing.org/proj/ Cheers, Carson > Hi all, > I have some shp file in epsg:4326 and I want to repojeciton them to > 900913, google's coordinate system. Because there are so many of them, > using > org2org to convert them might be a big project. > So I put > "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 > +k=1.0 +units=m [EMAIL PROTECTED] +no_defs <>" in custom projection. But a > warning message showed that there must be a "ellips=". > > Then I added the > # Google Mercator > <900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 > +y_0=0 +k=1.0 +units=m [EMAIL PROTECTED] +no_defs <> > to epsg file. Still, the Google Mercator didn't show up in projection > select > window. > > I googled for a while, some old posts suggested add it to srs.db. But I > have > no idea how to do so. > Besides, I found little imformation about it through the net. Is it just > a > silly question? Any helpful information would be appreciated. > > > > regards > > Kuja > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > Carson Farmer Spatial Pattern Analysis & Research Lab (SPAR) Department of Geography, University of Victoria PO Box 3050 STN CSC Victoria, BC, V8W 3P5,Canada www.geog.uvic.ca/spar [EMAIL PROTECTED] _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user