On Tue, Oct 15, 2013 at 8:58 AM, Ron Lindhoudt <rlindho...@yahoo.com> wrote:
> Ok.I can imagine that an offset algorithm is some work if you have to
> consider a line with multiple line segments.
>
> What I really want to do is to render graphic symbol some little distance
> from a line.
> For example a line with triangle symbols with the triangle just under the
> line and not centered with the line.
> I tried using AnchorPoint and Displacement but that does not work either.
> That only seems to work for labels.
> Is AnchorPoint and Displacement not supported for graphic symbols (used
> for a line in GraphicStroke)?
>
They are not, for the same reason as labels
> It seems to me that this should not be a lot of work. In this case you
> don't have to worry about multiple line segments (the distance is very
> small and drawing symbols on top of eachother cannot be avoided anyway).
>
Incomplete implementations of line offset have already been rejected, we
are looking for one that does true offset,
not half half (simple reason, you give the partial implementation, walk
away, then users start bombarding us with
bug requests about it not working in half of the cases).
This ticket has a patch that partially works, probably more than the one
you're thinking about, but it was still
not applied because it does not support properly sharp angle changes, self
interescting lines, and rounded corners:
http://jira.codehaus.org/browse/GEOT-3912
Good news through, we've just (like, 20 minutes ago) landed a contract to
implement the real thing, with curved bends
and self intersection properly supported. Don't have a release date yet.
Cheers
Andrea
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