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Bug 1791

Summary:	Zoom-Function not working consistently in ColorGrid
Product:	.NET TeeChart	Reporter:	svattorre
Component:	Chart	Assignee:	Steema Issue Manager <issuemanager>
Status:	RESOLVED FIXED
Severity:	normal	CC:	chris
Priority:	---
Version:	TeeChart for .Net 4.1.2016.05125
Target Milestone:	---
Hardware:	PC
OS:	Windows
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:
Attachments:	minimal project unzoomed example screenshot zoomed example screenshot

Description svattorre 2017-02-20 05:49:41 EST

The Zoom function does not always show the specified area in a ColorGrid.

The attached project has a minimal setup to reproduce the problem.
Zooming in the lower area of the ColorGrid works as expected, but in the upper area the zoomed area is inconsistent with the selected area.
The axis labels are correct, the shown cells are not.

Changing the amount of data doesn't seem to change the behaviour.

Manually implementing the same functionality by changing the minimum and maximum values of the axis with a cursor selection produces the same issues.

Comment 1 svattorre 2017-02-20 05:51:10 EST

Created attachment 713 [details]
minimal project

Comment 2 svattorre 2017-02-20 05:52:49 EST

Created attachment 714 [details]
unzoomed example screenshot

Comment 3 svattorre 2017-02-20 05:53:13 EST

Created attachment 715 [details]
zoomed example screenshot

Comment 4 svattorre 2017-02-27 09:42:54 EST

This bug was set to "RESOLVED" and "FIXED", yet no solution or any explanation was provided.

I tried using the newest Evaluation Version (4.1.2016.10266) and the error still occurs.

Comment 5 christopher ireland 2017-02-27 10:25:37 EST

Hello,

The resolution to this issue involved a change to the source code which will require a rebuild and release before it becomes available to the public. The next maintenance release is due out in the near future (2-3 weeks) and this fix will be in it. If you have a source-code version of TeeChart we can pass this fix to you today.

Comment 6 svattorre 2017-02-28 01:28:28 EST

Hello,

thanks for your reply and your offer.

Since I don't have a source-code version I'll wait for the next maintenance release.

Thanks again and have a nice day.