[postgis-users] Get the bounding box?

Francis Markham fmarkham at gmail.com
Tue Jul 20 20:13:48 PDT 2010

You might want to look into the GEOGRAPHY type
http://postgis.refractions.net/docs/ch04.html#PostGIS_Geography to do
this nicely.


On 21 July 2010 12:57, Michael A. Peters <mpeters at shastaherps.org> wrote:
> Thank you. It did work with one caveat, I assume because all my shape data
> is in WGS84 it added an equal number of specified decimal degrees to each
> side but that was cake to adjust post ST_Expand and it now does exactly
> what I want it to do.
>> Hallo
>> ST_Expand should do the trick.
>> http://postgis.org/documentation/manual-1.5/ST_Expand.html
>> /Nicklas
>> 2010-07-20 Michael A. Peters  wrote:
> *snip*
>>>I can't figure out how to get the bounding box for the intersection. It
>>>would be nice to be able to simply ask for the bounding box + X
>>> kilometers
>>>in each direction if PostGIS can do that (I'm running 1.3.2 on CentOS -
>>>that's stock EPEL build) but I can do the math outside of PostGIS if
>>>necessary. I just can't figure out how to get the bounding box returned.
> -----
> Michael A. Peters
> http://www.shastaherps.org/
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