Chart Sample Problem

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   I'm running the ChartBrowser Sample(v20.2) and it hangs when selecting charts like Line Styles, Lines, Spline, etc. 
I checked and an infinite loop occurs in CXTPChartDiagram2DAxisView::CreateTickMarks.

An overflow occurs here and it is changed to a negative value, resulting in an infinite loop.

CXTPChartDiagram2DAxisView::CreateTickMarks(
...
	while (dMark < dAxisMaxValue + CXTPMathUtils::m_dEPS)
	{
		...

		// Here it is changed to a negative value.  
		dMark *= m_MarkCorrectionCoef;
		dMark = CXTPMathUtils::Round(dMark);    
		dMark /= m_MarkCorrectionCoef;

	In this case, the values were:
	double dViewMaxValue is 40431.5999
	m_MarkCorrectionCoef is 1000000

	dMark is	2852.516352 => 2852516352 => -2147483648.0000000  => -2147.4836479999999
	This value is repeated over and over again.

 And when changing the chart style, the following exception occurs.(multiple lines)

Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005).
Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005).
Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005).
Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005).

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shshin Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 January 2022 Status: Offline Points: 5	Post Options Post Reply Quote shshin Report Post Thanks(0) Quote Reply Topic: Chart Sample Problem Posted: 17 March 2022 at 9:59pm
	I'm running the ChartBrowser Sample(v20.2) and it hangs when selecting charts like Line Styles, Lines, Spline, etc. I checked and an infinite loop occurs in CXTPChartDiagram2DAxisView::CreateTickMarks. An overflow occurs here and it is changed to a negative value, resulting in an infinite loop. CXTPChartDiagram2DAxisView::CreateTickMarks( ... while (dMark < dAxisMaxValue + CXTPMathUtils::m_dEPS) { ... // Here it is changed to a negative value. dMark *= m_MarkCorrectionCoef; dMark = CXTPMathUtils::Round(dMark); dMark /= m_MarkCorrectionCoef; In this case, the values were: double dViewMaxValue is 40431.5999 m_MarkCorrectionCoef is 1000000 dMark is 2852.516352 => 2852516352 => -2147483648.0000000 => -2147.4836479999999 This value is repeated over and over again. And when changing the chart style, the following exception occurs.(multiple lines) Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005). Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005). Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005). Exception thrown at 0x00007FFFFEFC4F69 (KernelBase.dll) in ChartBrowser.exe: 0xE0000001 (parameters: 0xFFFFFFFF80004005).

astoyan Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 24 August 2013 Status: Offline Points: 284	Post Options Post Reply Quote astoyan Report Post Thanks(0) Quote Reply Posted: 20 March 2022 at 4:58am
	It's been a known issue and it had been fixed for the next maintenance update v20.3 which will be release soon. Regards, Alexander