Aha, I see, thanks Jim :) !
So to get the outer border I should create the same area with a bigger
stroke and then substract the original area from that one , is that so?
Nice to meet people like you,
Sincerely,
Ramón
----- Original Message -----
From: "Jim Graham" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, November 26, 2002 12:34 AM
Subject: Re: [JAVA2D] STROKE_CONTROL
Hi Ramón,
Use the Area class to either subtract or intersect the original shape
with/from the outline created with BasicStroke.createStrokedShape().
Intersection will produce the inside part, subtract will produce the
outside part.
As far as non-convex polygons, you will probably find lots of cases
where for a very convoluted self-intersecting or self-touching polygon
and a very wide outline width there will be lots of visual anomalies
which make the result look wrong because some part of the path
overlapped in a way that wasn't intuitive. I believe the results will
be correct, they just might be surprising (as with many things in
geometry... ;-)
...jim
--On Tuesday, November 26, 2002 12:11 AM +0100 Ramón Talavera
<[EMAIL PROTECTED]> wrote:
> For an outside border that is quite easy, the mask way works fine.
> For an outside border things change, as I have to scale the main
> Polygon and draw it again to have the
> outside borderline: Problem: the polygon center, if it is a regular
> polygon the center of mass works fine, but if the polygon is
> non-convex then there are problems and many borders dissapear.
>
> ¿Any ideas?
> I can post images if you wish :).
>
> Thanks,
> Ramón Talavera
> ----- Original Message -----
> From: "Dave Kavanagh" <[EMAIL PROTECTED]>
> To: "Ramón Talavera" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Monday, November 25, 2002 11:12 PM
> Subject: Re: [JAVA2D] STROKE_CONTROL
>
>
> I don't think there is a flag you can set or something easy like that.
> You could double the stroke width and set up a clip to either mask
> off the inside or the outside of the shape you wish to outline.
>
> David
> Quoting Ramón Talavera <[EMAIL PROTECTED]>:
>
> > I am trying to draw a 2D polygon with a border stroke with a width
> > of 2.0, but I want those 2.0 to go completely inside the polygon
> > borderline, I
> mean,
> > normally half the line width goes outside and the other half goes
> > inside,
> but
> > I want to have it completely outside or completely inside, anyone
> > know how
> I
> > can get this effect?
> >
> > Thanks in advance,
> > Ramón Talavera
>
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