Re: Hot to envelope() n points stored in a table?
The envelope function gives you the minimum bounding rectangle of a geometry, see
http://dev.mysql.com/doc/refman/5.0/en/geometry-property-functions.html
So, the envelope of a point would be the point itself, which would seem a bit useless.
You could run a query that would get you the max and min of all the points, ie, select max(X(geom)), max(Y(geom)) from table and create the mbr from that.
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October 29, 2008 06:11PM
Re: Hot to envelope() n points stored in a table?
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December 16, 2008 03:34AM
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