Hi
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.
For those interested I Include the experiment in the following file

http://hotfile.com/dl/119748524/923a1a6/Prueba.zip.html

Thanks before hand

Gerardo Jiménez Delgado
Instituto de Investigaciones Antropológicas
Universidad Nacional Autónoma de México
Ciudad Universitaria s/n
Coyoacan 04510
Mexico City
Mexico

56 22 95 16

                                          
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