Steema Issues Database

Note: This database is for bugs and wishes only. For technical support help, if you are a customer please visit our online forums;
otherwise you can use StackOverflow.
Before using this bug-tracker we recommend a look at this document, Steema Bug Fixing Policy.



Bug 2371 - Wrong Marks displayed for the first 6 bars
Summary: Wrong Marks displayed for the first 6 bars
Status: RESOLVED WORKSFORME
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Series (show other bugs)
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Steema Issue Manager
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-09-26 07:56 EDT by Peter Højrup
Modified: 2020-09-28 04:08 EDT (History)
1 user (show)

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

Attachments
Two examples of the first 6 bars in a tBarSeries showing wrong Mark. (32.69 KB, application/vnd.openxmlformats-officedocument.wordprocessingml.document)
2020-09-26 07:56 EDT, Peter Højrup 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Peter Højrup 2020-09-26 07:56:19 EDT 
Created attachment 947 [details]
Two examples of the first 6 bars in a tBarSeries showing wrong Mark.

When using a tBarSeries in TChart I find that the first 6 bars have a wrong Mark. The following (often several hundred) have the correct mark.
In the enclosed examples the first should display the x-value (correct from bar 7) and the second the y-value (correct from bar 7).
The bars have been added with a command like:

  for i := Low (bars) to High (bars) do
    BarSeries.Add (bars [i]);

The present example was made with the latest version of TChart, but earlier versions showed the same. Identical in 32- and 64-bit versions, and in Delphi 10.3 and 10.4
Comment 1 yeray alonso 2020-09-28 04:08:52 EDT 
I'm trying to reproduce the problem without success with the code below:

var i: Integer;
const bars: TArray<Integer> = [295, 315, 215, 105, 15, 50, 47, 65, 59];
begin
  with TBarSeries(Chart1.AddSeries(TBarSeries)) do
  begin
    for i:=Low(bars) to High(bars) do
      Add(bars[i]);
  end;

I'll close this but we'll be pleased to reopen it if we get a simple example project we can run as-is to reproduce the problem.