On Thu, Jul 12, 2012 at 6:39 PM, Martin Davis <[email protected]> wrote:
> Yes, the elusive offset line would be required if that's the technique
> used.
>
> One way to do this geometrically would be to construct a series of
> perpendicular lines segments with the specified side, length, and spacing.
> Then delete all segments which intersect another one or the original line.
> The result will be a geometry that could be style to appear like hashes.
Right. This could be done using a geometry transformation.
Anther approach is to create symbols that are only half lines, which is
possible only programmatically right now
by creating a custom mark factory generating "explicit bound" shapes (a
line, but with a bbox telling the renderer
that the full symbol also has the other half as empty space)
Cheers
Andrea
--
Ing. Andrea Aime
GeoSolutions S.A.S.
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