Incomplete implementation -- this is supposed
to allow you to select features falling within
a particular distance of a polygon, but as yet I've
not quite figured how to do it properly.
Right now there's not much 'smarts' behind the use
of the projection, but in future releases I plan to
make this much more relevant by allowing you to use
multiple projections and have the code be clever
enough to reproject everything on the fly so that
it 'just works' without your having to do a lot of
faffing about on your own.
Usually used to instantiate a Polygon
object from within the general feature collection
of the shape file so that it can be manipulated
separately from the other polygons.
Usually used to instantiate a Polygon
object from within the processing of the shape file
so that it can be manipulated separately from the
other polygons.