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Hi<br>I have a dxf data whose coordinates are in UTM Nad27 zone 14q (14N for any GIS). I reproject the data to UTM WGS 84 either with vector tools or save as options and data I have from a GPS do not match my vector layer. I posted this also in the forum and followed the advise of building a KML from my original data. Same thing. I made an experiment, same dxf, exported to shape, define UTM nad27 projection, and reproject to UTMwgs84 and build a kmz in ArcMap. QGis and ArcMap Nad 27 data do match perfectly. The wgs84 data from QGIS and Arc Map differ about 80 meters (considerably if you want to use a vector layer displaying the streets of an entire city the size of Mexico City). The kmz from arcmap looks better in Google earth (streets do match better, not perfectly but better, the sat image) the the kml produced by QGis. So I wonder if anybody knows if I am doing something wrong or if the projection tools available in Qgis are working well.<br>For those interested I Include the experiment in the following file<br><br><a class="postlink" href="http://hotfile.com/dl/119748524/923a1a6/Prueba.zip.html">http://hotfile.com/dl/119748524/923a1a6/Prueba.zip.html</a><br><br>Thanks before hand<br><br>Gerardo Jiménez Delgado<br>Instituto de Investigaciones Antropológicas<br>Universidad Nacional Autónoma de México<br>Ciudad Universitaria s/n<br>Coyoacan 04510
Mexico City<br>Mexico
56 22 95 16<br><br> </body>
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