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Bug 2448

Summary: Area series draws line between first/last points
Product: .NET TeeChart Reporter: Brian Kohrs <bkohrs>
Component: .NET 5.0Assignee: Steema Issue Manager <issuemanager>
Status: RESOLVED FIXED    
Severity: normal CC: chris
Priority: ---    
Version: unspecified   
Target Milestone: ---   
Hardware: PC   
OS: Windows   
Chart Series: --- Delphi / C++ Builder RAD IDE Version:

Description Brian Kohrs 2021-07-09 15:30:03 EDT 
When executing as a console application, area series draw a line between their first/last point. If you run the same code in a WinForms application, the line is not drawn.

Here is some sample code to reproduce it:

            var chart = new TChart();
            var series1 = new Area();
            series1.Add(1, 2);
            series1.Add(2, 3);
            series1.Add(3, 6);
            var series2 = new Area();
            series2.Add(1, 1);
            series2.Add(2, 2);
            series2.Add(3, 5);
            chart.Series.Add(series1);
            chart.Series.Add(series2);
            chart.Export.Image.PNG.Width = 800;
            chart.Export.Image.PNG.Height = 600;
            chart.Export.Image.PNG.Save(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "chart.png"));

This repository also has projects that demonstrate the issue.

https://github.com/jhabkohrs/TeeChartAreaLine