Opps - please keep discussion on the email list. That way more people are able
to take part and possibly help you?
I think what you may want to do is:
1) Get the geometry for your selected feature
Geometry geom = feature.getDefaultGeometry();
2) Take the centre
Coordiante centre = geom.getCentriod();
3) turn that back into a geometry
Point point = geometryFactory.createPoint( centre );
4) And then …. buffer the point to obtain a Polygon (it will be a circle)
point.buffer( amount )
The tricky part is determining what the amount should be.
Jody
On Saturday, 28 April 2012 at 11:56 PM, jérémy lacombe wrote:
>
> Good afternoon,
>
>
> In reality, i just want to select a feature and draw a circle around this
> feature. But, i don't know how to do that. and i just want to have the
> property of the feature selected ^^
>
> Regards ,
>
> ptitdje
>
>
> Date: Sat, 28 Apr 2012 22:27:12 +1000
> From: [email protected] (mailto:[email protected])
> To: [email protected] (mailto:[email protected])
> CC: [email protected]
> (mailto:[email protected])
> Subject: Re: [Geotools-gt2-users] Geologie France
>
> The tutorials are written for GeoTools 8.
> - http://docs.geotools.org/latest/userguide/tutorial/map/style.html
>
> What is the link to "opensourcejavaphp.net (http://opensourcejavaphp.net) you
> found? The web is a strange place …
>
> You can find the older (i.e. stable) copy of the tutorials here:
> - http://docs.geotools.org/stable/tutorials/
>
> Please keep in mind that "selection" is a concept for your application.
> GeoTools is just providing the ability to work with features; and draw
> features. That selection tutorial focuses on "draw" some features that have
> been considered selected in that example. You may wish to handle the idea of
> selection in the same manner for your application?
>
> Jody
>
> > Moving to the small problem I encountered:
> > -----> I followed the tutorial for display and loading the shapefile.
> > PERFECT = D
> > ------> I took a second tutorial (
> > http://www.opensourcejavaphp.net/java/geotools/org/geotools/demo/SelectionLab.java.html)
> > to select one feature at a click on the JMapPane. NOT PERFECT = / Let me
> > explain I have a compilation error in this online tutorial:
> > mapFrame = new JMapFrame (map);
>
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