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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