[QGIS-trac] Re: [Quantum GIS] #3746: Not recognizing Shapefile
Projection
Quantum GIS
qgis at qgis.org
Sat Apr 16 12:17:45 EDT 2011
#3746: Not recognizing Shapefile Projection
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Reporter: rmercer | Owner: nobody
Type: bug | Status: new
Priority: major: does not work as expected | Milestone: Version 1.7.0
Component: Projection Support | Version: 1.6.0
Keywords: Shapefile, Projection | Platform_version: Win XP
Platform: Windows | Must_fix: No
Status_info: 0 |
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Comment(by aghisla):
The zip file misses the dbf, and the .shp has a further .xml extension, so
I tried to reproduce the problem with my own data.
I set the project CRS as WGS84 and enable OTFR. Then added a shp without
projection information, and have been prompted for its CRS. I specified
epsg:3003 (italian projection), and the layer's scale and position are
transformed values in degrees. Adding another shapefile, with prj,
automatically reprojects it to WGS84 in the correct lat/lon place.
In Options dialog > CRS tab, you can select what QGIS should do when the
user adds a layer without CRS information. The default is to assign WGS84.
That's why, without a prj file, and even if the coordinates are in a
projected CRS, QGIS assumes that it is in lat/lon and simply uses the
values as they are.
I personally changed the default action to Prompt for CRS - so that I'm
notified that there is no projection information and QGIS would hardly
guess it.
Can you still upload a valid shapefile for this specific case?
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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3746#comment:1>
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