[udig-devel] Re: udig plug-in development problem

[Jody Garnett <jgarnett@xxxxxxxxxxxxxxx>]

ei02024@xxxxxxxx wrote:
> Hello,
>
> I a student and it was asked me to do develop a plug-in for uDig. To do it a
> I've to manipulate (add, remove, edit) the map's layers.
>   
That functionality should already covered by the uDig environment (or I
am miss understanding you)?
> I'm still on the begining but I'm having a lot of problems in creating a new
> layer(a blank one our with a resource) and adding it to an existing map.
>   
I think I see, your problem is that you are not allowed to do that
without using "commands".
What you need to do is construct a command that will make the correct
modification of a
running map. And then execute it.

If you read section 5 of the Programmers Guide it should walk you
through using commands.
> If you could help me some how and/or show me some example code of how to do that
> (create a new layer and add it to a map) I would be very thankful.
>   
I only have an example of creating an entirely new map. I think this is
an area Jesse is improving for uDig 1.1.
He will have a milestone release of this by the end of the week if you
think it will help.

Jody