You can use the Area class to add in the original Shape:
public Shape expandShape(Shape s, float d) {
BasicStroke bs = new BasicStroke(d);
// or new BasicStroke(d, CAP_ROUND, JOIN_ROUND);
Area a = new Area(bs.createStrokedShape(s));
a.add(new Area(s);
return a;
}
Note that the JOIN setting by default is MITER which may not match your
expectations for what it means to "expand the boundary of a Shape".
ROUND would result in a smoother resulting outline...
...jim
Chris Nokleberg wrote:
I'd like to expand the boundary of an arbitrary Shape. If I use a
BasicStroke createTransformedShape, the result is perfect except for
the resulting hole. I currently get rid of the hole by iterating over
the path, splitting the shape into multiple subshapes, and then
comparing the bounds of each subshape to find the outermost one. This
is bunch of work just to undo the unnecessary work BasicStroke has
already done, though. Any suggestions on a cleaner solution?
Thanks,
Chris
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