Have you tried using the JOIN_MITRE corner style?
http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/operation/buffer/BufferParameters.html#JOIN_MITRE
On Thu, Nov 28, 2013 at 9:38 AM, Brian Sanjeewa Rupasinghe <
[email protected]> wrote:
> Hi,
>
> To clarify more, just inflating a polygon with an offset distance
> preserving concave corners. My requirement is to enlarge a polygon with a
> scale factor equally from all edges. When i use Affine transformation with
> the base point as centroid, it works for
> rectangular polygons. But when the polygon's centroid lies outside for
> irregular
> polygons, enlargement is not symmetrical from all edges. See the
> following figure for
> what i want after offset.
>
>
>
>
> [image: alt text]
>
> Cheers, Brian.
>
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