[gdal-dev] OSGeo.OGR.Geometry: Union the mutiple geometries at a time

[MRRAJESH]

Developers,

We came to know that OSGeo.OGR.Geometry is having the *Union *method which
allows to the union of the two geometries (code snippet below). But this
allows us one by one. How to union the multiple geometries (say 1000
geometries) at a time? Any methods or libraries in GDAL?

OSGeo.OGR.Geometry g1 = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON(......
OSGeo.OGR.Geometry g2 = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON(......
OSGeo.OGR.Geometry g3 = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON(......

OSGeo.OGR.Geometry unionGeometry = (g1.Union(g2)).Union(g3);

Regards,
Rajesh



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