Re: Manual Scaling

[Gerard V. <gve...@gr...>]

On Mon, 26 Jan 2004 12:35:05 +0200
"Lynelle B. Nundoo" <lyn...@ca...> wrote:

> Hi,
>  
> I want to be able to set the axis scale to show specific values, for eg:
> plotting between 1-21, and showing 0,3,6,9.
> I've tried using setAxisScale, however, unless the step is a multiple of
> {1,2,5,10}, it doesn't seem to consider the given step.
>  
> Any help would be appreciated.
>
Hi,

I do not know why your still with qwt0.2h. A reason may be that you are 
still running Qt-1.4.x (I have backported Qwt-0.3.0 to Qt-1.4.x, if you
are interested...).

I have tested setAxisScale(QwtPlot::xBottom, 0.0, 21.0, 3.0) with Qwt-0.3.0 and
Qwt-4.2.0rc1. With Qwt-0.3.0 there are ticks at 0, 5, 10, ..., but with
Qwt-4.2.0rc1 there are ticks on 0.0, 3.0, 6.0, ...

If you **really** need an old version of Qwt, ask again...

Gerard

PS: we have several tricks available for Qwt-4.2.0 to have autoscaling with
the y-axis starting at 0 as you requested in your previous post :-) :-)
 
> Thanks,
> Lynelle
>  
> PS:: QWT version - qwt0.2h
>  
> Lynelle B. Nundoo
> Development Engineer
> Intervid Technologies
>  
>