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Bug 1844

Summary:	CalcClickedPart throws exception
Product:	.NET TeeChart	Reporter:	Sunil Ramesh <sunil.ramesh>
Component:	Chart	Assignee:	Steema Issue Manager <issuemanager>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	chris
Priority:	High
Version:	TeeChart for .Net 4.1.2016.05125
Target Milestone:	---
Hardware:	PC
OS:	Windows
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:

Description Sunil Ramesh 2017-04-18 06:12:47 EDT

Steps to reproduce:
1. Add series to data chart of type Line
2. Enable free rotate.
4. Rotate the data chart to the maximum angle allowed.
5. Call Chart.CalcClickedPart(location) will throw the below error

Exception: Negating the minimum value of a twos complement number is invalid.

mscorlib
at System.Math.AbsHelper(Int32 value)
at Steema.TeeChart.Styles.CustomPoint.ClickedPointer(Int32 valueIndex, Int32 tmpX, Int32 tmpY, Int32 x, Int32 y)
at Steema.TeeChart.Styles.CustomPoint.Clicked(Int32 x, Int32 y)
at Steema.TeeChart.Styles.Custom.Clicked(Int32 x, Int32 y)
at Steema.TeeChart.Styles.Series.Clicked(Point p)
at Steema.TeeChart.Chart.CalcNeedClickedPart(Point Pos, Boolean Needed)
at Steema.TeeChart.Chart.CalcClickedPart(Point Pos)
at DataGenic.Gdm.Extensibility.SeriesDataChart.DataChart_MouseMove(Object sender, MouseEventArgs e)
at System.Windows.Forms.Control.OnMouseMove(MouseEventArgs e)
at Steema.TeeChart.TChart.OnMouseMove(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseMove(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Comment 1 christopher ireland 2017-05-29 11:15:30 EDT

Cannot reproduce in the head revision using the following code:

    private void InitializeChart()
    {
      Line series = new Line(tChart1.Chart);
      series.FillSampleValues();
      tChart1.Tools.Add(typeof(Rotate));

      tChart1.MouseDown += TChart1_MouseDown;
    }

    private void TChart1_MouseDown(object sender, MouseEventArgs e)
    {
      ChartClickedPart part = tChart1.Chart.CalcClickedPart(e.Location);
      tChart1.Header.Text = part.Part.ToString();
    }