Ken Southerland wrote:
I am using Postgres 8.2.4 on Windows and am having an issue with the
Circular Strings in the Postgis extension.
Why is the bounding box of circularstrings incorrectly calculated. Here
I have a circular string that represents a nearly closed circle...
db=# SELECT astext( geom ) FROM geom_table WHERE id = 0;
---------------------------------------
CIRCULARSTRING(220268.439465645 150415.359530563,220227.333322076
150505.561285
879,220227.353105332 150406.434743975)
... but it's extent is a rectangle that only covers the two endpoints
and ignores the middle point and the arc segments in-between...
db=# SELECT astext( extent( geom ) ) FROM geom_table WHERE id = 0;
---------------------------------------------------------------
POLYGON((220227.34375 150406.421875,220227.34375
150415.375,220268.453125 15041
5.375,220268.453125 150406.421875,220227.34375 150406.421875))
... is this a known issue that is being addressed?
Ken
Hi Ken,
Which PostGIS version are you using? Any chance you could file this on
the PostGIS bugtracker?
Many thanks,
Mark.
--
Mark Cave-Ayland
Sirius Corporation - The Open Source Experts
http://www.siriusit.co.uk
T: +44 870 608 0063
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