Hi Alex,
If you look at the Javadoc for the Polygon class:
.../javadoc/index.html?com/vividsolutions/jts/geom/Polygon.html
A polygon is made up of an outer "shell" linearring and an array of "interior"
linearrings for any holes.
So to drop the holes from a polygon, all you need to do is get the shell and
use that.
You can do this by calling the getExteriorRing() method on your Polygon object.
Hope this helps.
Cheers
Nick
From: Alessandro Giuliani [mailto:[email protected]]
Sent: 07 May 2014 19:36
To: [email protected]
Subject: [Jts-topo-suite-user] polygon to linesring
Hello,
I'm new to jts.
To reduce the number of polygons generated I use the cascade union feature of
jts. The problem is that the resulting polygons have holes inside so I cannot
pass these coordinates to 2D redender library,cause it does not support holes
in polygons.
I have tried to "triangolize" but the resulting triangles resets the benefit of
cascade union (increase the number of polygons).
How can I convert cascade union result to a list of linesring to pass to 2D
render routines?
Thanks in advance for your support.
Regards,
Alex
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