Luca,
You can also loop through the features with relatively simple Python
code to get the extents. See sample below (adapt at will):
def findPoints(geometry, results):
for i in range(geometry.GetPointCount()):
x,y,z = geometry.GetPoint(i)
if results['north'] == None or results['north']
Thank you Chaitanya.
I think that this makes great sense when dealing with a summary of the
whole layer, especially because a lot of formats store the extent in the
layer metadata/header.
But if I need to dump all the features, or to get a dump or summary of a
filtered set of features (in which c
Sig,
ogrinfo doesn't force the recomputation of extent. It is considered as a
costly operation. ogrinfo just reports the stored extent.
Whereas in ogr2ogr, creating a new file automatically computes the extents.
On Fri, Apr 22, 2011 at 7:44 PM, Luca Sigfrido Percich
wrote:
>
> Hi Matthew,
>
> Yo
Hi Matthew,
Your question is interesting. ogrinfo -where seemed to be the answer,
but...
I tried ogrinfo with the -where "sql where" option with both MapInfo and
PostGIS layers. In your case it should be:
ogrinfo -ro -so -al -where "$WHERECLAUSE" "whole_shapefile.shp"
The returned extent is al
Hi All,
I think this is the right list for the question below, as I cannot find a
different list that matches my question better.
I'm using ogr2ogr and ogrinfo (v1.4), and I want to extract the extent from
the result of a subsetting where argument. I have a solution here that
works but I'm wonde