Re: [postgis-users] How to get the centroid of an bounding box using st_extent

Fri, 21 Sep 2007 14:09:45 -0700 

And example of this patch in use:
select asText(makebox2d('POINT(1.1111 2.22222)'::geometry, 'POINT(1.1111 2.22222)'::geometry)), asText(makebox2d('POINT(1.1111 2.22222)'::geometry, 'POINT(1.1111 2.222222)'::geometry)), asText(makebox2d('POINT(1.1111 2.22222)'::geometry, 'POINT(1.11111 2.222222)'::geometry)), 


       asText(box3d(makebox2d('POINT(1.1111 2.22222)'::geometry, 
'POINT(1.1111  2.22222)'::geometry))),
       asText(box3d(makebox2d('POINT(1.1111 2.22222)'::geometry, 
'POINT(1.1111  2.222222)'::geometry))),
       asText(box3d(makebox2d('POINT(1.1111 2.22222)'::geometry, 
'POINT(1.11111 2.222222)'::geometry)))



"POINT(1.1110999584198 2.22221994400024)";


"LINESTRING(1.1110999584198 2.22221994400024,1.1110999584198 
2.22222208976746)";



"POLYGON((1.1110999584198 2.22221994400024,1.1110999584198 
2.22222208976746,1.11110997200012 2.22222208976746,1.11110997200012 
2.22221994400024,1.1110999584198 2.22221994400024))";


"POINT(1.1110999584198 2.22221994400024)";


"LINESTRING(1.1110999584198 2.22221994400024,1.1110999584198 
2.22222208976746)";



"POLYGON((1.1110999584198 2.22221994400024,1.1110999584198 
2.22222208976746,1.11110997200012 2.22222208976746,1.11110997200012 
2.22221994400024,1.1110999584198 2.22221994400024))"



Charlie



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