I have a bit of a issue with lines drawn with a Graphic stroke. I've
looked at the SLD specification on how it is supposed to be done and I
haven't really gotten a good answer but here is what it does and what I
think it should do:
What it does:
Between each set of coordinates the graphic is drawn. If the distance
between the two coordinates is longer than the graphic then the graphic
is repeated until the space if filled up. So far this is more or less
ok. However if the distance between coordinates is less than the length
of the graphic then the graphic is clipped so that it fits. Because of
this when you zoom out the graphic is unrecognizable. Image a line with
an arrow. If you zoom in the arrow can be seen with no difficulty but
if you zoom out it looks like a line (the arrow is lost).
What I expected:
I expected the arrow to show up independent of what zoom level I am at.
A weather map is a good point. I have weather front with arrows
indicating the direction they are moving. The direction the arrow
points is dependent on the order of the coordinates so a graphic stoke
would work perfectly... Unfortunately if I look at all of canada it just
looks like a line. I have to zoom in to see the arrows. This is not
what is desired.
I am going to make a new implementation of StyledShapePainter for my use
in this project. And can add it to geotools if it is the behaviour that
other expect as well. However if there is a better way to do what I
want please let me know before I do too much work.
Thanks,
Jesse
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