Hi Hans,
I've tried this already.... with my polygons i'll get an
OutOfMemory-Exception. It seems this class cannot handle my number of
polygons.
But thanks, reminding me of that way points me to new ways to try.
Markus
Am 14.09.2009 11:48 schrieb Hans Bogaards <[email protected]>:
Hi Markus and all,
geometry.union(other); it is much to slow for huge collection. In the
end. it should work with collection within 20.000 and more geometries.My
code looks like this:
private Geometry unionIntoOneGeometry( Collection geometryCollection) {
Geometry all = null; for (Iterator i = geometryCollection.iterator();
i.hasNext();) {
Geometry geometry = i.next(); if (geometry == null)
continue; if (all == null) {
all = geometry; } else {
all = all.union(geometry); }
} return all;
}
What I have found somewhere in the JTS documents is:
Geometry geom = geometryCollection.buffer(0);
Hope this helps
--
Hans
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