#33787: GeosGeometry doesn't support empty 3d points
---------------------------------------+------------------------
Reporter: Nicolas Noé | Owner: nobody
Type: Bug | Status: new
Component: GIS | Version: 4.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
---------------------------------------+------------------------
I need to create an empty 3d point using GeosGeometry, but it appears the
z dimension gets lost in the process:
{{{
In [1]: from django.contrib.gis.geos import GEOSGeometry
In [2]: g = GEOSGeometry('POINT Z EMPTY', srid=4326)
In [3]: g.ewkt
Out[3]: 'SRID=4326;POINT EMPTY'
In [4]: g.hasz
Out[4]: False
}}}
I'd expect g.ewkt to be 'SRID=4326;POINT EMPTY' and g.hasz to be True. As
a consequence, I can't assign it to a 3d model field.
I see the correct behavior if I use a non empty 3d point:
{{{
In [13]: g_non_empty = GEOSGeometry('POINT Z (1 1 1)', srid=4326)
In [14]: g_non_empty.hasz
Out[14]: True
In [15]: g_non_empty.ewkt
Out[15]: 'SRID=4326;POINT Z (1 1 1)'
}}}
I also tried creating the same feature using EWKB
(0x0101000080000000000000F87F000000000000F87F000000000000F87F is a 3D
empty point), but the third dimension is also lost here, just like in the
first example.
--
Ticket URL: <https://code.djangoproject.com/ticket/33787>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/0107018167c9e151-1a25ab70-0fdf-44bb-8a94-d9b1980b9d57-000000%40eu-central-1.amazonses.com.
