I would expect the graphics to act the way they are currently acting. An
arrow is a special case, where you don't want part of the graphic to
change (arrow head), but you want the rest to adjust (the line). I
suggest making a special arrow type that will behave the way you want it
to. Or, reversing the points and having a reversed arrow graphic.
Brent Owens
TOPP
Jesse Eichar wrote:
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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