Bug 86524

Summary:	Zoom range is limited
Product:	[Applications] kst	Reporter:	Netterfield <netterfield>
Component:	general	Assignee:	kst
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version:	1.x
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Netterfield 2004-08-03 23:21:45 UTC

Version:           0.99-devel (using KDE 3.2 BRANCH >= 20040204, Mandrake Linux Cooker i586 - Cooker)
Compiler:          gcc version 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk)
OS:                Linux (i686) release 2.6.3-7mdk

Problem: mouse zoom range limit is too high

How to reproduce:
Create and plot the equation 'sin(x)*1.0E-10'
Try to zoom in Y.  You can't.

Correct behavior:
You should be able to zoom in Y.

Note: this bug was introduced as the resolution to bug 85359.  The resolution is much worse than the problem.

The correct limit should be related to the dynamic range availible to double precision.

Comment 1 George Staikos 2004-08-03 23:32:47 UTC

On Tuesday 03 August 2004 17:21, netterfield@astro.utoronto.ca wrote:
> Problem: mouse zoom range limit is too high
>
> How to reproduce:
> Create and plot the equation 'sin(x)*1.0E-10'
> Try to zoom in Y.  You can't.
>
> Correct behavior:
> You should be able to zoom in Y.
>
> Note: this bug was introduced as the resolution to bug 85359.  The
> resolution is much worse than the problem.
>
> The correct limit should be related to the dynamic range availible to
> double precision.

   I agree.  This is what I had envisioned for the solution as well.  It will 
of course be architecture dependent but I'm sure there are some good 
resources available for doing this.

Comment 2 Andrew Walker 2004-08-04 04:36:24 UTC

Limit zoom to 10 times the minimum value represented by a double value.