Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-17 Thread Luiz Motta
Andre, Thank for quickly response. The question is exact this, why the QGIS read the PRJ and understands the 'towgs84', otherwise, the GDAL don't understands, where , the QGIS use the GDAL/OGR provider ? File PRJ:

Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-17 Thread Etienne Tourigny
Hi, you should probably raise this on the gdal-dev mailing list... On Fri, Jan 17, 2014 at 8:56 AM, Luiz Motta motta.l...@gmail.com wrote: Andre, Thank for quickly response. The question is exact this, why the QGIS read the PRJ and understands the 'towgs84', otherwise, the GDAL don't

Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-17 Thread Jürgen E . Fischer
Hi Luiz, On Fri, 17. Jan 2014 at 08:56:38 -0200, Luiz Motta wrote: The question is exact this, why the QGIS read the PRJ and understands the 'towgs84', otherwise, the GDAL don't understands, where , the QGIS use the GDAL/OGR provider ? QGIS tries to find a (near) match to prj content in it's

Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-17 Thread Luiz Motta
Hi all, Thank Jürgen for your explanation about how QGIS set the reference system from source. I agreement with André Joost about the user should select your specific reference. The source of my problem is the creating of shapefile by GDAL/OGR. For creating shapefile, the OGR/GDAL not using

Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-17 Thread Even Rouault
Le vendredi 17 janvier 2014 20:43:13, Luiz Motta a écrit : Hi all, Thank Jürgen for your explanation about how QGIS set the reference system from source. I agreement with André Joost about the user should select your specific reference. The source of my problem is the creating of

[Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-16 Thread Luiz Motta
Hi all, I had differences for transform the reference system of geometries between GDAL and QGIS. I made the transform using GDAL into geometry with reference system SAD 69 UTM (EPSG 29191) to WGS 84 (EPSG 4326) . When i add in QGIS the geometries with WGS84 and SAD 69 using 'on the fly'

Re: [Qgis-developer] Difference for transform reference system between QGIS and GDAL

2014-01-16 Thread Andre Joost
Am 17.01.2014 03:01, schrieb Luiz Motta: Hi all, I had differences for transform the reference system of geometries between GDAL and QGIS. I made the transform using GDAL into geometry with reference system SAD 69 UTM (EPSG 29191) to WGS 84 (EPSG 4326) . When i add in QGIS the geometries