googling1000 wrote:
Hi,
I'd appreciate it if someone can help me figure this out.
I thought ST_Buffer will take in any geometry and make a "buffer" around
that geometry.
Yes, it does.
So, if you give it a rectangular polygon, you will get a bigger rectangular
polygon.
Nope. You'll get a bigger rectangular polygon ... with rounded corners.
But, I keep getting a circle, and it looks like postgis found the center of
the polygon and made that point the center of the resulting circle.
If you've made your buffer large enough, it would indeed look like a
circle since all you'll see is the four rounded corners.
If you're after a larger rectangle, try simply expanding the bounding
box using ST_Expand(). Alternatively, you could try ST_Scale().
Cheers,
-- Kevin
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