#17736: django.contrib.gis.geos.polygon from_bbox loss of floating-point
accuracy
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Reporter: tdihp@… | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 1.3
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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from_bbox use a string formatting to generate a geom instance, this will
loose accuracy, when it matters
for example:
{{{
>>> import math
>>> from django.contrib.gis.geos import Polygon
>>> l,t,r,b = 0.0,0.0,math.pi,math.pi
>>> Polygon.from_bbox((l,t,r,b)).coords
(((0.0, 0.0), (0.0, 3.14159265359), (3.14159265359, 3.14159265359),
(3.14159265359, 0.0), (0.0, 0.0)),)
>>> Polygon(((l,t),(r,t),(r,b),(l,b),(l,t))).coords
(((0.0, 0.0), (3.141592653589793, 0.0), (3.141592653589793,
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/17736>
Django <https://code.djangoproject.com/>
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