Hi dears,
I've been looking at geotools for almost two weeks and after a bit of effort
I've been able to produce some simple maps following the examples. But I'm
too far from my original objective of writing a little utm renderer. I would
be really grateful if anyone can tell me what steps are necessary to render
a few polygons (10km2 filled squares) based on utm coordinates (zone, x, y)
on an image. I guess the code would include these steps:
- Obtaining a crs.
- Creating the coordinates of the polygon.
- Building it.
- Adding the polygon to a feature.
- Adding all the features to a layer.
- Creating an envelope.
- Adding the layer to a mapcontext.
- Rendering it with a StreamRenderer.
Unfortunately at the present moment I'm only able to draw a single square
using lat/lon coordinates and it's becoming a bit frustrating. I promise to
add the resulting project to the wiki with a little tutorial attached.
As I said, thanks in advance.
jv
--
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Javier Moreno
www.imaginafoto.com
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--
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Javier Moreno
www.imaginafoto.com
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