Re: Qt graphics zooming

[John W. Eaton]

On 03/03/2015 12:16 PM, Rik wrote:
> On 03/03/2015 09:00 AM, address@hidden wrote:
> > Subject:
> > Qt graphics zooming with Z+ Z-, and "save as" command
> > From:
> > Doug Stewart <address@hidden>
> > Date:
> > 03/03/2015 07:38 AM
> >
> > To:
> > address@hidden
> >
> > List-Post:
> > <mailto:address@hidden>
> > Precedence:
> > list
> > MIME-Version:
> > 1.0
> > Message-ID:
> > <address@hidden>
> > Content-Type:
> > multipart/alternative; boundary=f46d0442861c1f42c60510642239
> > Message:
> > 6
> >
> >
> >  hg tip
> > changeset:   19893:67cb2f421255
> >
> > Qt graphics
> > Ubuntu 14.04
> >
> > 1)    I tried out the Z+ and Z- buttons and found that they zoom
> > relative to the center of the figure, but I expected them to zoom
> > relative to where the mouse pointer was pointing.
> > Was my expectation wrong?
>
> Were you zooming with the mouse wheel?
>
> By comparison, FLTK does zoom around the point where the mouse is. Can
> someone verify what Matlab does in this regard?

I checked in this change:

  http://hg.savannah.gnu.org/hgweb/octave/rev/ac18e88ea1bf

jwe