TChart Issues II

[Sandra]

Hello VarMelb,

Thanks, for your example. I think that you could solve your problem, doing something as next code:

Code: Select all

public Form1()
        {
            InitializeComponent();
            InitializeChart();
        }

        private Steema.TeeChart.Styles.Bar bar1;
        private Steema.TeeChart.Tools.ColorLine colorLine1;
        private void InitializeChart()
        {
            bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);
            bar1.FillSampleValues();
            colorLine1 = new Steema.TeeChart.Tools.ColorLine(tChart1.Chart);
            colorLine1.Axis = tChart1.Axes.Bottom;
            colorLine1.Value = 0;
            colorLine1.Pen.Color = Color.Red;
            colorLine1.Value = 2;
            tChart1.Scroll +=new EventHandler(tChart1_Scroll);
            tChart1.UndoneZoom += new EventHandler(tChart1_UndoneZoom);
        }

        void tChart1_UndoneZoom(object sender, EventArgs e)
        {
            colorLine1.Active = true;
        }
        void tChart1_Scroll(object sender, EventArgs e)
        {
            if ((colorLine1.Value > tChart1.Axes.Bottom.Maximum) || (colorLine1.Value < tChart1.Axes.Bottom.Minimum))
                colorLine1.Active = false;
            else
                colorLine1.Active = true;
        }

Please, check if previous code solves your problem. Also, I have added with the information above item with number (TF02014843).

I hope will helps.

Thanks,

[VarMelb]

Hi Sandra,

thanks for the work around.

A simple "don't display the ColorLine when outside the Chart" is not really practical for our code as we have many charts each with a ColorLine.
Also the workaround doesn't handle the situation when the user drags the ColorLine outside the chart.

I will have to look at fixing the problem in the TChart ColorLine code.

thanks anyway.

Mark

[Sandra]

Hello Mark,

I have made other simple project that I think you could use its code for solve your problem for now. Please, check if its code works as you want.

Code: Select all

        private Steema.TeeChart.Styles.Bar bar1,bar2;
        private Steema.TeeChart.Tools.ColorLine colorLine1,colorLine2;

        double inivalue;
        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;
            tChart2.Aspect.View3D = false;

            bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);
            bar2 = new Steema.TeeChart.Styles.Bar(tChart2.Chart);
        
            bar1.FillSampleValues();
            bar2.DataSource = bar1;
            
            colorLine1 = new Steema.TeeChart.Tools.ColorLine(tChart1.Chart);
            colorLine2 = new Steema.TeeChart.Tools.ColorLine(tChart2.Chart);
           
            colorLine1.Axis = tChart1.Axes.Bottom;
            colorLine1.Value = 0;
            colorLine1.Pen.Color = Color.Red;
            colorLine1.Value = 4;

            colorLine2.Axis = tChart2.Axes.Bottom;
            colorLine2.Value = 0;
            colorLine2.Pen.Color = Color.Red;
            colorLine2.Value = 4;

            tChart1.Scroll += new EventHandler(tChart1_Scroll);
            tChart1.UndoneZoom += new EventHandler(tChart1_UndoneZoom);

            tChart2.Scroll +=new EventHandler(tChart1_Scroll);
            tChart2.UndoneZoom += new EventHandler(tChart2_UndoneZoom);
            tChart1.Axes.Bottom.Automatic = false;
            tChart1.Axes.Bottom.Minimum = 0;
            tChart1.Axes.Bottom.Maximum = 5;
            tChart1.Axes.Bottom.Increment = 1;

            tChart2.Axes.Bottom.Automatic = false;
            tChart2.Axes.Bottom.Minimum = 0;
            tChart2.Axes.Bottom.Maximum = 5;
            tChart2.Axes.Bottom.Increment = 1;
            inivalue = colorLine1.Value;
        }

        void tChart2_UndoneZoom(object sender, EventArgs e)
        {
            colorLine2.Value = inivalue;
        }

        void tChart1_UndoneZoom(object sender, EventArgs e)
        {
            colorLine1.Value = inivalue;
        }

        void tChart1_Scroll(object sender, EventArgs e)
        {
            Steema.TeeChart.Chart chart = (Steema.TeeChart.Chart)sender;
            Steema.TeeChart.Tools.ColorLine cl = new Steema.TeeChart.Tools.ColorLine();
            Steema.TeeChart.Axis axis = new Steema.TeeChart.Axis();

            if (chart.Tools[0] is Steema.TeeChart.Tools.ColorLine)
            {
                cl = (Steema.TeeChart.Tools.ColorLine)chart.Tools[0];
                axis = cl.Axis;    
            }

            if (cl != null)
            {
                if (cl.Value > axis.Minimum)
                {
                    cl.Value = Math.Max(inivalue, axis.Minimum);
                }

                if (cl.Value > axis.Maximum)
                {
                    cl.Value = Math.Min(inivalue, axis.Maximum);
                } 
            }         
        }

I hope will helps.

Thanks,

[VarMelb]

Hi Support,

thank you for fixing a couple of other issues I had reported.

However, I have tried the latest build (4.0.2010.27960) and I believe the ColorLine problem as stated above is still present.

If possible can the priority of this be elevated to be fixed for the next release.

thanks
Mark

[Sandra]

Hello Mark,

Could you please, tell us if last code that I attached solve your problem and works as you want?


Thanks,

[VarMelb]

Hi Sandra,

the supplied code is not suitable.

When out side the axis min and max the ColorLine.Value should not change.

As our customer has requested this problem be fixed asap I have had to fix the problem in the TChart file ColorLine.cs.

Incidently, the same problem was present in the CursorTool code in the file Cusor.cs. I fixed that as well.

So our custom build of TChart now works as expected.

thanks for your time on this issue.

regards
Mark