Hi all,
 
 
I am trying to solve the following problem:
There is a list of features F (LineString or Polygon) and I need to find out
if these are contained within a set of other features O (Polygon). The catch
is that if an F feature crosses or intersects an O feature, then if the
neighbouring feature is also in O, the condition for F is still ok. The O's
are in a shape file and are selected based on an attribute filter and do not
necessarily touch, and the F's are Georeferenced Plone objects.
 
I would like to use Shapely and WorldMill (if I can get the
<http://www.gdal.org/ogr/ogr__api_8h.html#4000d426bf26ad7cc7d4012634c93f09>
OGR_L_SetAttributeFilter() to work), but I was wondering if there is another
(=better) way to solve this, for instance by merging all touching O's into
one polygon and then checking for containment.
 
Any advice would be greatly appreciated.
 

--

Jan H. van der Ven

MAGION Industrial Software Solutions

 
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