[Geotools-gt2-users] Should I use a Polygon or a Mark?

[jv <cib...@gm...>]

Hi everybody.  After being able to render some filled squares on a mapa
using polygons now I want to expand the program in order to be able to draw
several kind of  shapes: circles, squares, crosses (both filled and
unfilled). Looks like the correct way to do it is by using Marks instead of
polygons but I'm just unable to figure out how to add them to the
FeatureCollection and how to set their coordinates.
I would be really grateful if anybody can write some hints.
Thanks!
jv
ps: btw I need to do it fully programatically, no by using a declarative
file.

-- 
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Javier Moreno
www.imaginafoto.com
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