[postgis-tickets] [PostGIS] #4038: ST_Subdivide slope precision and lost boxes

PostGIS trac at osgeo.org
Tue Jul 31 17:45:02 PDT 2018


#4038: ST_Subdivide slope precision and lost boxes
----------------------+---------------------------
  Reporter:  komzpa   |      Owner:  komzpa
      Type:  patch    |     Status:  closed
  Priority:  medium   |  Milestone:  PostGIS 2.5.0
 Component:  postgis  |    Version:  trunk
Resolution:  fixed    |   Keywords:
----------------------+---------------------------

Comment (by dbaston):

 In [changeset:"16676" 16676]:
 {{{
 #!CommitTicketReference repository="" revision="16676"
 Make lwgeom_subdivide use lwgeom_intersection for clipping

 lwgeom_clip_by_rect describes itself as clipping in a "fast but possibly
 dirty way." This is not a good fit for lwgeom_subdivide, a primary use of
 which is the optimization of point-in-polygon processes. That application
 requires that the area covered by the subdivided geometry be the same as
 the area covered by the original geometry, which in turn requires that a
 robust intersection routine be used.

 References #4038
 Closes https://github.com/postgis/postgis/pull/281
 }}}

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4038#comment:2>
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