Codejock Developer Community : Chart Control

Chart Control : how can I change line width of legend on chart?

Fri, 02 Dec 2022 02:45:39 +0000

Author: dj1026
Subject: how can I change line width of legend on chart?
Posted: 02 December 2022 at 2:45am

I solved this problem. you can change the line width with SetLineThickness() of CXTPLegendItem.

/**/

CXTPChartContent* pContent = m_chartViewAll.GetContent();

CXTPChartSeriesCollection* pSeriesCollection = pContent->GetSeries();

for (int i = 0; i < pSeriesCollection->GetCount(); i++)

{

pSeriesCollection->GetAt(i)->GetLegendItem()->SetLineThickness(10);

}

/**/

Chart Control : how can I change line width of legend on chart?

Thu, 01 Dec 2022 21:06:40 +0000

Author: dj1026
Subject: how can I change line width of legend on chart?
Posted: 01 December 2022 at 9:06pm

hello everyone.

I want to change width of those lines on legend of XTPChart below.

I used codes to make those lines thicker. but it doesn't work.

/**/

CXTPChartContent* pContent = m_chartViewAll.GetContent();

CSize sz;

sz.SetSize(50, 50); // I thought I can change line width with second argument of SetSize()

pContent->GetLegend()->SetMarkerSize(sz);

/**/

would you help me?

best regards.

I'm using Xtreme Chart Pro v15.3.1.

Chart Control : Chart Sample Problem

Sun, 20 Mar 2022 04:58:19 +0000

Author: astoyan
Subject: Chart Sample Problem
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

Chart Control : Chart Sample Problem

Thu, 17 Mar 2022 21:59:49 +0000

Author: shshin
Subject: 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).

Chart Control : Chart MouseMove Event

Thu, 26 Aug 2021 22:31:34 +0000

Author: co.2195
Subject: Chart MouseMove Event
Posted: 26 August 2021 at 10:31pm

Hello.
I want to use the OnMouseMove event.
There is an event in XTPChartControl but it can not be inherited.

Maindlg's OnMouseMove does not work when Mouse is located in CustomControl
I looked in the forum, but I can't find it.
Help me.

If Mouse is located in Chart's Point, I would like to get a value.

Chart Control : point deletion method??

Wed, 27 Jan 2021 14:45:15 +0000

Author: cluster
Subject: point deletion method??
Posted: 27 January 2021 at 2:45pm

Hi,

I would say:

void Remove( CXTPChartElement* pElement);

void RemoveAt( int nIndex);

Chart Control : point deletion method??

Tue, 26 Jan 2021 03:46:59 +0000

Author: co.2195
Subject: point deletion method??
Posted: 26 January 2021 at 3:46am

There is a way to add a point
Is there a way to delete it?

Point Add :
pPoints->Add(new CXTPChartSeriesPoint(0, 2.5));

Point Delete :
????????

I would like to add only 200 to the chart
-> ex) If you add 201, delete 1.

Chart Control : how to remove points at certain X-VALUE

Wed, 13 Jan 2021 02:52:22 +0000

Author: yangyanhui
Subject: how to remove points at certain X-VALUE
Posted: 13 January 2021 at 2:52am

how to get CXTPChartSeriesPoint* with certain X-value?

Chart Control : how to remove points at certain X-VALUE

Wed, 13 Jan 2021 01:39:57 +0000

Author: yangyanhui
Subject: how to remove points at certain X-VALUE
Posted: 13 January 2021 at 1:39am

hi,I have a CCHARTCTRL and I want to remove points at certain X-VALUE to delete duplicate data.How can I get the point and remove it?

thanks

Chart Control : GetRange crash

Thu, 17 Dec 2020 02:02:50 +0000

Author: yangyanhui
Subject: GetRange crash
Posted: 17 December 2020 at 2:02am

I find the reason. It is because I execute pDiagram->GetAxisX()->GetRange()->GetViewMaxValue(); when I move the mouse. I now need to disable onmousemove when I zoom the range because I need to exeute PointToValue in mousemove event.How can i realize it,mutex does not work