Hey Andrea,
sorry for not clearing out things before. This is what i suggest:
Making a Vector tool box for udig which can support the following functionality:
1.Exporting Geometry of a shapefile or adding to its attributes: The Geometry for each entity(line/point/polygon) in the shapefile can be exported or added to the attribute table corresponding to that entity.
2. Tool for creating Delaunay triangles from a points data shapefile.
3. Tool for creating Voronoi Polygons from a point data shapefile.
4. Tool to simplify the geometries of polygons and polylines.
5. Exporting the nodes from polygons and lines, or lines from polygons
6. Analysis tools like:
a. Distance Table matrix for points: It will create a matrix showing distance between every pair of points the in shapefile.
b.Points in a polygon: It will tell which points lie within a polygon and which doesn't.
c.Others like: Listing unique values in a specified attribute, giving basic statistics, regarding the data like Mean value, standard deviasion, min, max values etc.
7. Operations like finding the convex hull of a set of points can be added to the Axios tool extension as well.
For implementing such tools, there are two ways, one is to develop the standard algorithms from scratch for operations like Delaunay triangles, Voronoi Polygons, or the other way is to use the support library that udig uses 'JTS', which supports some of the operations mentioned above, and then link it to the visualization. And other operations are quite straight forward to implement.
As far now, i haven't done any uDig development, but i can learn fast. I am comfortable in using java, and have used the eclipse sdk before.
Operations that i found that udig supports:
1. Polygons Centroid.
2. Converting lines or points to polygon.
3. Spatial Operations like union, intersection, etc. (implemented in Axios tools)
Thanks,
