Steema Central

Code: Select all

    static void Main(string[] args)
    {
      ITChart pChart = new TChartClass();
      pChart.SetTheme(EChartTheme.ctExcel, EColorPalette.cpExcel); // just to make chart look nicer
      pChart.Aspect.View3D = false;

      int idx = pChart.AddSeries(ESeriesClass.scLine);
      ISeries pSeries = pChart.Series(idx);
      ILineSeries pAreaSeries = (ILineSeries)pSeries.asLine;
      
      pAreaSeries.Pointer.Visible = true;
      pAreaSeries.Pointer.Style = EPointerStyle.psDiamond;
      pAreaSeries.Pointer.HorizontalSize = 4;
      pAreaSeries.Pointer.VerticalSize = 4;

      // add data
      for (int i = 0; i < 7; i++)
        pSeries.AddXY(i, i, null, (uint)EConstants.clTeeColor);
      
      // export graph to observe the problem 
      IBMPExport pBMP = pChart.Export.asBMP;
      pBMP.Height = 250;
      pBMP.Width = 600;
      
      // set one of series data colors to user defined color
      pSeries.set_PointColor(1,0xff); //red
      
      // uses default color to draw points (except point color for point 1) 
      // and default color for line segments
      pSeries.ColorEachPoint = false;
      pAreaSeries.ColorEachLine = false;
      pBMP.SaveToFile("c:\\tee_1_CEPointFalse_CELineFalse.bmp");

      // uses palette colors to draw points (except point color for point 1)
      // and default color for line segments
      pSeries.ColorEachPoint = true;
      pAreaSeries.ColorEachLine = false;
      pBMP.SaveToFile("c:\\tee_2_CEPointTrue_CELineFalse.bmp");

      // uses palette colors to draw points(except point color for point 1)
      // DOES IT USE palette colors for line segments(except point color for line segment 1)
      // OR same colors as points do?
      pSeries.ColorEachPoint = true;
      pAreaSeries.ColorEachLine = true;
      pBMP.SaveToFile("c:\\tee_3_CEPointTrue_CELineTrue.bmp");

      // uses default color to draw points(except point color for point 1)
      // and default color for line segments
      // BUT SHALL IT USE palette colors for line segments(except point color for line segment 1)?
      // OR same colors as points do?
      // JUST LIKE in case 3?
      pSeries.ColorEachPoint = false;
      pAreaSeries.ColorEachLine = true; //<<<< produces the same picture as in case 1 "tee_1_CEPointFalse_CELineFalse"
      pBMP.SaveToFile("c:\\tee_4_CEPointFalse_CELineTrue.bmp");
    }

Code: Select all

Private Sub Form_Load()
With TChart1.Series(0)
    .FillSampleValues (5)
    .asLine.ColorEachLine = True
    .ColorEachPoint = True
End With
With TChart1.Series(1)
    .DataSource = TChart1.Series(0)
    .asLine.LinePen.Visible = False
    .asLine.Pointer.Visible = True
End With
TChart1.Series(0).PointColor(1) = vbBlack
End Sub