#32368: Wrong srid when creating SpatialReference with proj4
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Reporter: Eran Keydar | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 3.1
Severity: Normal | Resolution:
Keywords: GDAL GEO-DJANGO | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Eran Keydar:
Old description:
> I create SpatialReference with proj4 string, I expect the srid to be None
> but I get a number.
>
> django 3.1.5
> python 3.8.5
> gdal version: 3.0.4
>
> {{{
> from django.contrib.gis.gdal import SpatialReference
> sr = SpatialReference('''+proj=lcc +lat_1=30.28333333333333
> +lat_2=28.38333333333333 +lat_0=27.83333333333333 +lon_0=-99 +x_0=600000
> +y_0=4000000 +ellps=GRS80 +datum=NAD83 +units=m +no_defs ''')
> print(sr.srid) # get 6269
>
> sr = SpatialReference('+proj=laea +lat_0=52 +lon_0=10 +x_0=4321000
> +y_0=3210000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs ')
> print(sr.srid) # get 7019
>
> sr = SpatialReference('+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
> ')
> print(sr.srid) # get 6326
>
> print(sys.version)
> 3.8.5 (default, Jul 28 2020, 12:59:40)
> [GCC 9.3.0]
>
> }}}
New description:
I create SpatialReference with proj4 string, I expect the srid to be None
but I get a number.
django 3.1.5
python 3.8.5
gdal version: 3.0.4
os: ubuntu 20.04
{{{
from django.contrib.gis.gdal import SpatialReference
sr = SpatialReference('''+proj=lcc +lat_1=30.28333333333333
+lat_2=28.38333333333333 +lat_0=27.83333333333333 +lon_0=-99 +x_0=600000
+y_0=4000000 +ellps=GRS80 +datum=NAD83 +units=m +no_defs ''')
print(sr.srid) # get 6269
sr = SpatialReference('+proj=laea +lat_0=52 +lon_0=10 +x_0=4321000
+y_0=3210000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs ')
print(sr.srid) # get 7019
sr = SpatialReference('+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs ')
print(sr.srid) # get 6326
print(sys.version)
3.8.5 (default, Jul 28 2020, 12:59:40)
[GCC 9.3.0]
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/32368#comment:1>
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