On Tue, Sep 11, 2012 at 3:20 PM, Matthias Lendholt <
[email protected]> wrote:
> Hi,
>
> In my uDig/Geotools based application I have to programmatically create
> circle geometries based on centre + radius. I assume it will only affect
> geotools + JTS functionalities.
>
> I found this:
>
> http://docs.codehaus.org/display/GEOTDOC/01+How+to+Create+a+Geometry#id-01HowtoCreateaGeometry-CreatingaCircle
>
> However, my center is a Point in WGS84 and the radius is given in
> [m]/[km]. I guess I have to convert at first my center into another CRS,
> create the circle geometry and then, convert the geometry back into WGS84.
>
> Could anyone provide me the details how to realize these transformations
> and which CRS I have to use?
>
Have a look at the PointBuffers process, also described here:
http://geo-solutions.blogspot.it/2010/11/fun-stuff-computing-circular-buffers-in.html
(back at the time it was in GeoServer, now it is in GeoTools process-vector
unsupported module)
Cheers
Andrea
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