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Bug 664

Summary:	ColorLine doesn't show when the Axis is Inverted
Product:	VCL TeeChart	Reporter:	yeray alonso <yeray>
Component:	Tools	Assignee:	Steema Issue Manager <issuemanager>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	david
Priority:	---
Version:	140220
Target Milestone:	---
Hardware:	PC
OS:	Windows
URL:	http://www.teechart.net/support/viewtopic.php?f=3&t=14790
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:
Attachments:	ColorLine invisible when Inverted Axis

Description yeray alonso 2014-03-25 06:33:48 EDT

Created attachment 130 [details]
ColorLine invisible when Inverted Axis

See the project attached.

If you don't invert any axis, you can drag the colorline, zoom & scroll without problems.

If you invert an axis, the colorline linked to it is still present but not drawn.
If you move the mouse around the chart you find the colorline because the cursor changes to drag mode, but you can't see the tool. And if you scroll, zoom or drag the invisible tool, then it seems to snap to the edges of the chartrect. Curious.

Comment 1 david berneda 2014-03-27 13:52:21 EDT

Fixed. 

This method was wrongly inverting start and ending coordinates when the axis is inverted:  TColorLineTool.GetAxisStartEnd

Correct code:

procedure TColorLineTool.GetAxisStartEnd(out AStart,AEnd:Integer);
begin
  AStart:=Axis.IStartPos;
  AEnd:=Axis.IEndPos;
end;