[QGIS-trac] Re: [Quantum GIS] #3672: region error when creating a
GRASS location?
Quantum GIS
qgis at qgis.org
Sun Apr 3 08:24:21 EDT 2011
#3672: region error when creating a GRASS location?
------------------------------------------------+---------------------------
Reporter: lutra | Owner:
Type: bug | Status: new
Priority: major: does not work as expected | Milestone: Version 1.7.0
Component: GRASS | Version: Trunk
Keywords: | Platform_version:
Platform: All | Must_fix: Yes
Status_info: 0 |
------------------------------------------------+---------------------------
Comment(by neteler):
The reason will be that several datums are associated to EPSG 3003:
{{{
g.proj -c epsg=3003 datumtrans=-1 location=loc_epsg_3003
---
1
Used in whole rome40 region
towgs84=-225.000,-65.000,9.000
Default 3-Parameter Transformation (May not be optimum for older datums;
use this only if no more appropriate options are available.)
---
2
Used in Italy (Peninsular Part)
towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
Accuracy 3-4m
---
3
Used in Italy (Sardinia)
towgs84=-168.6,-34.0,38.6,-0.374,-0.679,-1.379,-9.48
Accuracy 3-4m
---
4
Used in Italy (Sicily)
towgs84=-50.2,-50.4,84.8,-0.690,-2.012,0.459,-28.08
Accuracy 3-4m
}}}
When creating such a new location (the same applies to all projections
with multiple datum
choices), the user must be presented with a related datum dialog to choose
from.
--
Ticket URL: <https://trac.osgeo.org/qgis/ticket/3672#comment:2>
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