Charlie Savage wrote:
However, is this another bug then?
select astext(extent(GeomFromText('POINT(-104 40)')))
"POLYGON((-104 40,-104 40,-104 40,-104 40,-104 40))"
Looks like the same bug/design issue. JTS would return the envelope as
a POINT in this case.
But luckily, this actually works:
select astext(extent(collect(envelope(GeomFromText('POINT(-104 40)')),
envelope(GeomFromText('POINT(-105 39)')))))
"POLYGON((-105 39,-105 40,-104 40,-104 39,-105 39))"
So that solves my issue.
Yeah, the good news is that envelope operations can be pretty
insensitive to geometry validity, so they should always be able to
return appropriate answers.
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Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022
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