[postgis-tickets] [PostGIS] #4906: ST_LocateAlong wrongly returns multipoint
PostGIS
trac at osgeo.org
Mon May 3 23:37:39 PDT 2021
#4906: ST_LocateAlong wrongly returns multipoint
-----------------------+----------------------------
Reporter: schelm903 | Owner: pramsey
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.4.10
Component: postgis | Version: 2.4.x
Keywords: |
-----------------------+----------------------------
I have created a View which shows the derived Point geometries of an
event-table with the row "position" (m-values) on a LinestringZM. The
geometries are produced with ST_Locate_Along.
Whenever an entry on the event table has the exact m-value of a vertex of
the linestring and a defined offset, two points are generated.
I am not sure if this is on purpose or a bug as the support of multipoints
was added in the past:
Ticket [https://trac.osgeo.org/postgis/changeset/8758]
For our purposes though this behavior is a problem. In my view only one
point lying between the two should be generated.
--
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4906>
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