[OSGeo-Discuss] Proposal: OSGeo Cartographic Library

[Bruno Lowagie]

Dave Patton wrote:
> Actually, dealing with "the legend", or the contents
> of the entire map collar, is non-trivial, however, a
> library that can render the content within a map's
> neat line has all the tools necessary to be able to
> render the map's collar. The difference may be that
> there would need to be some additional functionality,
> or different methods of calling the same underlying
> functionality, in order to make the tasks involved
> in composing the collar easy.

If you make the map in PDF, you could provide the
legend as a floating annotation that can be moved
around by the user.
If you are using OCG, you also have the Optional
Content panel that can be used as a legend and that
can be used to make certain layers visible/invisible.

All this is fairly easy to achieve in PDF.
br,
Bruno