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Bug 1306

Summary:	Issue when zooming TColorgrid series when CenteredPoints property is true
Product:	VCL TeeChart	Reporter:	garethtyeparc
Component:	Series	Assignee:	Steema Issue Manager <issuemanager>
Status:	CONFIRMED ---
Severity:	major	CC:	sandra
Priority:	---
Version:	150420
Target Milestone:	---
Hardware:	PC
OS:	Windows
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:
Attachments:	Project files and pictures to show problem PNG Picture to should problem (see right hand side of plot)

Description garethtyeparc 2015-09-15 09:22:13 EDT

Created attachment 495 [details]
Project files and pictures to show problem

In the latest version of TeeChart for VCL (Build 2015.16.150901)
When zooming a ColorGrid when the "CenteredPoints" property is set to true it is possible that on occasions data is missing around the top and right of the ColorGrid.

If the CenteredPoints property is set to false, this does not happen.


I have attached an example c++builder project and pictures to show the error.
Simply load the data ("teechart testdata.txt") and perform a number of random zooms (top to bottom right or bottom to top left) with the "CenteredPoints"
checkbox checked. After a few tries you should see the effect.

This problem is not found in TeeChart version 2013.09.131119

Comment 1 garethtyeparc 2015-09-15 09:24:17 EDT

Created attachment 496 [details]
PNG Picture to should problem (see right hand side of plot)