[PostGIS] #5703: ST_Intersects function is returning the wrong results for a simple rectangle that crosses any two quarter longitude lines
PostGIS
trac at osgeo.org
Wed Apr 17 11:32:23 PDT 2024
#5703: ST_Intersects function is returning the wrong results for a simple
rectangle that crosses any two quarter longitude lines
------------------------+---------------------------
Reporter: hangstrap | Owner: pramsey
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 3.4.3
Component: postgis | Version: 3.4.x
Resolution: | Keywords:
------------------------+---------------------------
Comment (by pramsey):
This is an effect of ring orientation?
{{{
-- CCW (bounds small area, pt is outside)
SELECT _ST_DistanceUnCached(
'POLYGON (( -5 10, -5 -10, 95.0 -10, 95.0 10 , -5 10))'::geography,
'POINT (-6 0)'::geography
);
-- CW (bounds everything except small area, pt is inside)
SELECT _ST_DistanceUnCached(
'POLYGON (( -5 -10, -5 10, 95.0 10, 95.0 -10 , -5 -10))'::geography,
'POINT (-6 0)'::geography
);
}}}
But I cannot remember handling ring orientation.
--
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5703#comment:4>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.
More information about the postgis-tickets
mailing list