If your geometry was a line and the points were to to the left and above
your bounding box you would never find it; even though it does cross.
+ line geometry
_/__
|/ |
/bbox|
/|____|
+
Please use the JTS Geometry class method for these kinds of tests...
here are my notes:
http://docs.codehaus.org/display/GEOTDOC/Point+Set+Theory+and+the+DE-9IM+Matrix
Filter makes use of the same ideas; but is mostly for sending these
kinds of questions off to a database (and having it do the work).
Jody
Jürgen Jacob wrote:
> Dear all,
>
> I have a geometry object and a envelope. I want to test if this geometry
> somehow touches the envelope in that way that at least one coordinate of
> this geometry is inside the envelope.
> My straight ahead implementation is:
>
> Coordinate[] coordinates = geometry.getCoordinates();
> for (Coordinate coordinate:coordinates){
> if (bbox.contains(coordinate)){
> return true;
> }
> }
> return false;
>
> Is such a convenience method already existing? (Where?) Or should I use
> the filter?
>
> Thanks,
> Jürgen
>
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