Mark Cave-Ayland wrote: > 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. > I've created an issue for this <http://code.google.com/p/postgis/issues/detail?id=58>, and have a working patch for the 1.3 branch. Unfortunately, I'm getting regression failures in regress_ogc_prep (both before and after the patch) that are preventing me from committing. The errors I'm getting are...
ERROR: function st_intersects(unknown, text, integer) does not exist ERROR: function st_intersects(geometry, geometry, integer) does not exist ERROR: function st_intersects(unknown, unknown, integer) does not exist ... for various combinations of geometry, unknown and text. Are these a result of our ongoing prepared geometry API indecision and consequently ignorable? -- Mark Leslie Geospatial Software Architect LISAsoft ------------------------------------------------------------- Ph: +61 2 8570 5000 Fax: +61 2 8570 5099 Mob: +61 Suite 112, Jones Bay Wharf 19-21 Pirrama Rd Pyrmont NSW 2009 ------------------------------------------------------------- LISAsoft is part of the A2end Group of Companies http://www.ardec.com.au http://www.lisasoft.com http://www.terrapages.com _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
