Comments

• graphs drawn below the x-axis

  Posted by Legacy on 09/29/2000 12:00am

  Originally posted by: Christian Schmidt

  i discovered the graph-class just when i needed it and found it very useful! thanks to Massimo Colurcio!
  but i encountered a small problem: while the demo-projekt works just fine, the graphs in my own prog are sometimes drawn below the x-axis where the label is located.
  questions: how come? how to prevent this?

  thanks in advance, christian.

  Reply

• Add to dialog based project ?

  Posted by Legacy on 08/26/2000 12:00am

  Originally posted by: Manny

  Can I use this class with a dialog based app ... ? .... thanks ...

  Manny
  

  Reply

• MDI to SDI

  Posted by Legacy on 04/09/2000 12:00am

  Originally posted by: Rohit Gupta

  the demo project was made using MDI..i copied the classes and .h files in my SDI project..
  i encountered a problem when a click for a new document..

  please tell me how to change the code from MDI to SDI

  thanx..

  rohit

  Reply

• How can I add legends to identify the graphs?

  Posted by Legacy on 03/17/2000 12:00am

  Originally posted by: Patricia

      Good evening, Mr.Colurcio:
  
  I've found your code and I'm using it to show the results of a program I've made.
  
  It is really useful, it has helped me a lot because I didn't know how to show different kinds of graphs in the same image. 
  
  But as we see several graphs, I wonder how I could add the legends to know which graph is which.
  
  Thank you very much in advance.
  
        Patricia
  

  Reply

• Very Cool, I added to my project with some changes.

  Posted by Legacy on 03/10/2000 12:00am

  Originally posted by: Eric Jennings

  Good job on this control, its very fast and light.
  
  I added a few things, so I thought that I would let you
  
   know.  Your chart was added as one of my views to my 
  
  project.  I just created a window using your class.
  
  void CMyViewClass::OnInitialUpdate() 
  
  {
  
      CView::OnInitialUpdate();
  
      CRect rect;
  
      DWORD style;
  
      GetClientRect(&rect);
  
      style=WS_CHILD|WS_VISIBLE;
  
      if( m_Chart.Create( NULL, _T("Hello World!"), style, rect,
  
          this, NULL, NULL ) == 0 )
  
          AfxMessageBox( "Create Chart control failed", MB_OK );  
  
  ...
  
  }
  
  
  
  Then I changed the OnPaint in the chart control to auto size.
  
  void CHMXChart::OnPaint() 
  
  {
  
      CPaintDC dc(this); // device context for painting
  
      // Resize the chart to the size of the parent window.
  
      CWnd *pWndOwner = this->GetOwner();
  
      CRect rect;
  
      pWndOwner->GetWindowRect( &rect );
  
      this->MoveWindow(0,0, RECTWIDTH( &rect ), RECTHEIGHT( &rect ), TRUE);
  
  ...
  
  }
  
  I added some predefined colours so that I had more control 
  
  over the title, label ect...
  
  // pre-defined COLORREF values
  
  #define CR_BLACK    RGB(0x00,0x00,0x00)
  
  #define CR_BLUE     RGB(0x00,0x00,0xFF)
  
  #define CR_GREEN    RGB(0x00,0xFF,0x00) 
  
  #define CR_CYAN     RGB(0x00,0xFF,0xFF) 
  
  #define CR_RED      RGB(0xFF,0x00,0x00) 
  
  #define CR_MAGENTA  RGB(0xFF,0x00,0xFF) 
  
  #define CR_YELLOW   RGB(0xFF,0xFF,0x00) 
  
  #define CR_WHITE    RGB(0xFF,0xFF,0xFF) 
  
  #define CR_BLUE_BLACK   RGB(0x00,0x00,0x3F)
  
  #define CR_SOFT_BLUE    RGB(0x5F,0x5F,0xFF) 
  
  #define CR_SOFT_GREEN   RGB(0x5F,0xFF,0x5F) 
  
  #define CR_SOFT_CYAN    RGB(0x5F,0xFF,0xFF) 
  
  #define CR_SOFT_RED     RGB(0xFF,0x5F,0x5F) 
  
  #define CR_SOFT_MAGENTA RGB(0xFF,0x5F,0xFF) 
  
  #define CR_SOFT_YELLOW  RGB(0xFF,0xFF,0x5F) 
  
  #define CR_SOFT_WHITE   RGB(0xFF,0xFF,0xFF)
  
  #define CR_BROWN    RGB(0xBF,0x8F,0x00)
  
  
  
  Then I added m_sFmtYLabel member variable so that the 
  
  formatting of the Y axis label could be a little more flexable. (ie. set it to "$%.2f" to indicate dollars).
  
  (Line marked with ##)
  
  bool CHMXChart::DrawYScale(CDC & dc)
  
  {
  
      if( !m_bShowYScale )
  
          return false;
  
      
  
  ...
  
      // draw text
  
      for( f=0; f<=nTicks; f++ ) {
  
          nTemp1 = m_rectYAxis.bottom + nFontSize/2 - ( nY*(f)   ) * m_rectData.Height()/(m_nYMax-m_nYMin);
  
          nTemp2 = m_rectYAxis.bottom + nFontSize/2 - ( nY*(f+1) ) * m_rectData.Height()/(m_nYMax-m_nYMin);
  
  ##      sBuffer.Format( m_sFmtYLabel, m_nYMin + nY*f );
  
          dc.DrawText( sBuffer, CRect( m_rectYAxis.left,(int)nTemp2, m_rectYAxis.right, (int)nTemp1 ),
  
                      DT_RIGHT | DT_BOTTOM | DT_SINGLELINE );
  
      }
  
      if( !m_strYText.IsEmpty() ) {
  
  ...
  
  }
  
  Thanks again, Eric
  
  
  

  Reply

• [Q] How can I scale the range from 0 in Y axie?

  Posted by Legacy on 02/10/2000 12:00am

  Originally posted by: hosang

  Hi!
  How can I scale the range from 0 in Y axie?
  

  Reply

• Demo project not found!

  Posted by Legacy on 01/25/2000 12:00am

  Originally posted by: Anonymous

  Sound very good about this article, but where is the attached demo project to prove it?

  Reply