[gdal-dev] OGR functionality to remove holes?

[xavier lhomme]

3D engine doesn't like hole in a polygone.
 A way to render such polygon is to link the outer ring and the inner ring.
(But it's better to use tesselation.)

for example if you have a rectangle ABCD and a triangle describing the hole
( EFG) , you can create a polygone ABCDAEFGA

It's how I understand the question. I don't think you will find such
function in GEOS (or JTS)


2014/1/20 Even Rouault <even.rouault at mines-paris.org>

> Le lundi 20 janvier 2014 21:27:18, agerrius a écrit :
> > Hi all,
> >
> > Does OGR have any build in functionality to convert features with holes
> > into features without holes? I don't mean delete the inner rings, but
> > change the geometry so that it covers the same area with only the outer
> > ring.
>
> I'm afraid not to understand what you mean. What is the difference between
> deleting inner rings and "changing the geometry so that it covers the same
> area with only the outer ring" ?
>
> There's no one-line invocation for such functionnality. But it can be done
> with the OGR API and a few dozains lines of code.
>
> >
> > I know GlobalMapper has such a function, but it would be useful if I
> could
> > perform it in my code directly with the OGR library.
> >
> > Thanks,
> >
> > Arno
> >
> >
> >
> > --
> > View this message in context:
> >
> http://osgeo-org.1560.x6.nabble.com/OGR-functionality-to-remove-holes-tp50
> > 99099.html Sent from the GDAL - Dev mailing list archive at Nabble.com.
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