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biodiv / anycluster

Server-side clustering of map markers for (Geo)Django
MIT License
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"Unsupported SRS" exception #1

Closed clime closed 11 years ago

clime commented 11 years ago

I am trying to get this app (which looks promising btw) working but now I am stuck on SRSException at /anycluster/grid/2/64/, Getting this at:

        /srv/www/cwu/anycluster/clusterer.py in point_ToMercator
        line 161. mercator = SpatialReference("900913")

Any idea how to solve it?

biodiv commented 11 years ago

The first thing to try is changing 900913 to 3785 or 3857.

3785 is old and was replaced by 900913 ('google') which was then replaced by 3857.

All of these 3 Spatial References describe the same Projection. Please let me know if it helped.

clime commented 11 years ago

Yes, 3785 works. Thank you! I was trying to add 900913 to spatial_ref_sys table as described here: https://docs.djangoproject.com/en/dev/ref/contrib/gis/install/, but that was also giving me an error:

$ python manage.py shell
>>> from django.contrib.gis.utils import add_srs_entry
>>> add_srs_entry(900913)
GDAL_ERROR 6: EPSG PCS/GCS code 900913 not found in EPSG support files.  Is this a valid
EPSG coordinate system?

But with 3785, this was not needed. I am getting another exception tho. I'll descritbe it in the next issue.

biodiv commented 11 years ago

I am leaving this issue open as I might include an exception handling falling back to 3785 if 900913 or 3875 do not exist

biodiv commented 11 years ago

added exception handler with commit#29