Bug 89892

Summary:	Autoscale should take into account only the visible area
Product:	[Applications] kst	Reporter:	Nicolas Brisset <nicolas.brisset>
Component:	plotting	Assignee:	Rick Chern <rchern>
Status:	RESOLVED FIXED
Severity:	wishlist	CC:	arwalker
Priority:	NOR
Version:	1.x
Target Milestone:	---
Platform:	unspecified
OS:	Solaris
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Nicolas Brisset 2004-09-20 18:20:36 UTC

Version:           1.0.0_devel (using KDE 3.3.0, compiled sources)
Compiler:          gcc version 3.3.2
OS:                SunOS (sun4u) release 5.8

When using the cool zooming features, I often have the following problem: I have created curves where the variation range is +/- 50 for Y, X varying from 0 to 100. When I want to look more closely at what happens around X = 10 and Y happens to be varying between +/- 2 in that area, the Y range set with auto scale on is still in the +/- 50 range of the complete curve.
The expected behavior would be to autoscale the Y axis according to the currently visible values only.

Comment 1 Andrew Walker 2004-10-04 19:32:01 UTC

If this is implemented it should be done only as an optional checkbox. The default behaviour should remain as is.

If you are looking at rapidly scrolling data it is easier to quickly ascertain the current values if the range of the y-axis remains constant with time. To have it changing with every update should only be done if specifically requested by the user.

Comment 2 Nicolas Brisset 2004-10-04 23:46:10 UTC

I fully agree with your comment. Maybe the best way to implement this would be to autoscale on the visible area only when a manual request to autoscale Y is performed (contextual menu or keyboard accelerator). If you just zoom/scroll in X, Y axes are not screwed up, but if you need to you can easily zomm in Y on a subset of the curves.
Sounds really good to me :-)

Comment 3 Netterfield 2005-03-04 22:00:47 UTC

*** Bug 96248 has been marked as a duplicate of this bug. ***

Comment 4 Rick Chern 2005-06-21 01:16:30 UTC

SVN commit 427544 by rchern:

Add local y maximum zoom function to context menu - shortcut key Shift+L

CCMAIL: 89892-done@bugs.kde.org

 M  +95 -33    kst2dplot.cpp  
 M  +7 -1      kst2dplot.h