id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
8563	[gis] Current locale considered when converting a geometry to WKT	luizvital <luiz.vital@…>	jbronn	"I'm getting a OGRGeometry Exception intermittently, when saving a form.

After debuging the code I noticed that the WKT string generated from
geometries were taking the current locale into account, thus raising
the Exceptions due to a bad WKT string representation. Here goes an
example:

{{{
>>> import locale
>>> from django.contrib.gis.geos import Point
>>> p = Point(-45.23, -23.15)
>>> p.wkt
'POINT (-45.2299999999999969 -23.1499999999999986)'
>>> locale.getlocale()
(None, None)
>>> locale.setlocale(locale.LC_ALL, ('pt_BR','UTF-8'))
'pt_BR.UTF8'
>>> p.wkt
'POINT (-45,2299999999999969 -23,1499999999999986)'
}}}

Notice de comma "","" for decimal separator in the last output.

It must be something in the GEOS C library and in this case should be
fixed there, but maybe it should be avoided reseting de locale before
calling the C routine and restoring the locale to what it was just
after.

I think the reason this problem was not always happening is related to
the some setlocale thread safety issue.

I was using the wkt from the geometry in a custom form PointField to get the coordinate transformed to the desired srid.

"		closed	GIS	dev		invalid	geos locale		Accepted	0	0	0	0	0	0