Re: fltk backend fix & mouse wheel scroll factor

[John Swensen]

On Sep 28, 2009, at 3:45 PM, Shai Ayal wrote:

> On Mon, Sep 28, 2009 at 9:24 PM, John W. Eaton <address@hidden> wrote:
> > On 27-Sep-2009, Shai Ayal wrote:
> >
> > | The attached changset fixes a bug which did not show the zoom box.
> > | Also added a function to enable the user to control the zoom factor
> > | when using mouse wheel zoom.
> > |
> > | I think that with this changeset, the fltk_backend is quite  
> > usable as
> > | a viewer to the gl-renderer.
> >
> > I applied it.  Zooming seems to work well for me now with either the
> > scroll wheel or the click and drag method.
> >
> > | I am open to feature requests.
> >
> > Just about zooming/rotating issues, or other things?  :-)
> >
> > If we just had images working, then the fltk backend might be able to
> > run all the demos...
>
> My problem right now is that I have only very short timeslots (~1
> hour) for this, so I try to do small simple stuff. I'll have a look at
> the image code (probably copy from jhandles as usual..) and see if it
> fits the timeslot.
>
> Shai

Is implementing the images in the gl renderer and harder than making a  
texture with the image on it as a very small negative z-depth, so that  
things plotted on top of it show up?  If that is the case, then I may  
be able to take look at this.

John