Iñigo, I suggest you to read uDIG/Geotools docs. A GIS project isnt as simple as asking questions about how to use an API.
I also suggest you to read Open Geospatial Consortium specs. In these specs, youll find what is a Feature, a FeatureCollection, a GridCoverage, a Layer, etc. Main GIS projects ara based in these OGC's desing. After that, you'll realize that a geospatial image is a kind of GridCoverage. Next, you might look for GridCoverage docs and Renderers in Geotools portal, and youll learn how to read an image, and how to render it with geotools' renderers. Finally, I suggest you to read this link: http://www.catb.org/~esr/faqs/smart-questions.html http://www.sindominio.net/ayuda/preguntas-inteligentes.html Best regards. _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
