How find top/left and top/right of the Teechart graph and Teechart Canvas?

Question

I am trying to figure out Teechart control and graph canvas of all four corners in client coordinate.

Does anyone know Teechart API that return a canvas coordinate for all four corner?

Thank you

Answer 1

To determine the position of chart in the Window Form you can use the .Left and .Top Chart properties. In the same way, you can get the TChart Corners using the ChartRect. Please take a look to the code below:

// CDraggingDlg message handlers

BOOL CDraggingDlg::OnInitDialog()
{
….
    CDialog::OnInitDialog();
    // Extra initialization
    m_ctrlChart.RemoveAllSeries();

    m_ctrlChart.GetAspect().SetView3D(false);
    m_ctrlChart.AddSeries(scLine);
    m_ctrlChart.Series(0).FillSampleValues(100); 
    return TRUE;
}

std::string text; 

void CDraggingDlg::OnAfterDrawTChart() 
{

    // Draw a white circle around the clicked pyramid...

    CTeeRect r = m_ctrlChart.GetGetChartRect();
    long recwidth, recheight, posLeft, posTop; 

    int BottomLCornerX,BottomLCornerY, BottomRCornerX, BottomRCornerY, TopLCornerX, TopLCornerY, TopRCornerX, TopRCornerY;
    std::string s1, s2, s3; 

    //Get Width
    recwidth = (r.GetRight()- r.GetLeft()); 
    recheight = (r.GetBottom()-r.GetTop()); 

    //GetPosition
    posLeft =   m_ctrlChart.GetLeft(); 
    posTop = m_ctrlChart.GetTop(); 

    //CalculateCorners
    BottomLCornerX = r.GetLeft();
    BottomLCornerY = r.GetBottom(); 
    BottomRCornerX = r.GetRight(); 
    BottomRCornerY = r.GetBottom(); 
    TopLCornerX = r.GetLeft(); 
    TopLCornerY = r.GetTop(); 
    TopRCornerX = r.GetRight; 
    TopRCornerY = r.GetTop(); 
    //Visualization Values
    s1 = "Position Chart :" + std::to_string(posLeft) + "," + std::to_string(posTop); 
    s2 = "Chart Rect Positons: Left " + std::to_string(r.GetLeft()) + " Top " + std::to_string(r.GetTop()) + " Right " + std::to_string(r.GetRight()) + " Bottom " + std::to_string(r.GetBottom());
    s3 = "Chart Rect Corners: BottomLeft  " + std::to_string(BottomLCornerX) + "," + std::to_string(BottomLCornerY) + " BottomRight " + std::to_string(BottomRCornerX) + "," +
    std::to_string(BottomRCornerY) + "\n TopLeft  " + std::to_string(TopLCornerX) + "," + std::to_string(TopLCornerY) + " TopRight " + std::to_string(TopRCornerX) + "," + std::to_string(TopRCornerY); 
    text = s1 + "\n" + s2 +"\n"+s3 ;
}
void CDraggingDlg::OnButton1()
{MessageBox(text.c_str()); }