[Qgis-developer] Re: plotting points on qgis canvas

[Martin Dobias]

On 5/11/06, nitin quick <quick.nitin at gmail.com> wrote:
> thanks marco and martin,
> Currently i am focussing on plotting some point( currently not vector data
> but it may have some relation to map projection).Currently i am focussing on
> statically binding these points in code but later it may come from some
> other process or thread through some IPC. I want to keep gui interactive
> while plotting these points.
>
> I am trying to exploit acetate layer objects .I tried to install qt4.1.2
> (downloaded from trolltech) on my FC4 but it ends up in error saying
> owership rights not resolved and unable to form symbolic link for many
> files. Thats why i am currently trying on qt0.7.4 only.

Acetate layer and its object have the problem that the map must be
re-rendered every time they're changed, because they're drawn directly
to the map image and not only on top of it.

Please post your problems with Qt4 installation here, maybe someone
could help you.

> Also i am facing difficulty in adding a menu to menu bar , it says slot
> (name of slot correspondent to signal) not found. I did the same in
> qgisappbase.uic.in and .cpp as was for other menu items. Do i ned to edit
> qgisappbase.ui file with qt designer. I tried to change the defination of
> one of the slots but it end up in nothing.

You should be able to use QgisIface from plugins, there are functions
to add and remove menu items for usage by plugins.

Martin

>
> regards
> nitin
>
>