the Max of Y Axes is much large,the lines came together.

[sim]

We develop an application in .Net 3.5 in VS 2010 c#, using TeeChart Pro v 3.5.3225.32185.
I had a graph,the tChart1.Axes.Left.Maximum = 4.08426213706027E+304,the lines came together at the bottom of the graph.(1.jpg)

1.jpg (52.21 KiB) Viewed 5114 times

But changed to tChart1.Axes.Left.Maximum = 4.08426213706027E+284, it worked properly.

2.jpg (78.15 KiB) Viewed 5117 times

Code: Select all

  public Form2()
        {
            InitializeComponent();
            this.tChart1.Legend.Visible = false;
            this.tChart1.Axes.Left.Automatic = false;
            this.tChart1.Axes.Left.Logarithmic = true;
            this.tChart1.Axes.Left.LogarithmicBase = 10;
            this.tChart1.Axes.Left.Labels.ValueFormat = "0.000E+00";
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            this.tChart1.Axes.Left.Maximum = 4.08426213706027E+284;// 4.08426213706027E+304 
            this.tChart1.Axes.Left.Minimum = 2.8275674035204469E-288;
            this.tChart1.Axes.Left.Labels.Items.Add(1);
            this.tChart1.Axes.Left.Labels.Items.Add(1E+50);
            this.tChart1.Axes.Left.Labels.Items.Add(1E+100);
            this.tChart1.Axes.Left.Labels.Items.Add(1E+150);
            this.tChart1.Axes.Left.Labels.Items.Add(1E+200);
            this.tChart1.Axes.Left.Labels.Items.Add(1E+250);

            List<DataTable> dtList = buildDatatable();
            this.line1.DataSource = dtList[0];
            this.line2.DataSource = dtList[1];
            this.line3.DataSource = dtList[2];
            this.tChart1.Series.Add(line1);
            this.tChart1.Series.Add(line2);
            this.tChart1.Series.Add(line3);

        }

        private List<DataTable> buildDatatable()
        {
            List<DataTable> dtList = new List<DataTable>();

            DataTable dt1 = new DataTable();
            dt1.Columns.Add("X", typeof(double));
            dt1.Columns.Add("Y", typeof(double));
            DataRow dr1 = dt1.NewRow();
            dr1[0] = 10;
            dr1[1] = 1.39800766563162E-70;
            dt1.Rows.Add(dr1);
            DataRow dr2 = dt1.NewRow();
            dr2[0] = 10;
            dr2[1] = 0;
            dt1.Rows.Add(dr2);
            DataRow dr3 = dt1.NewRow();
            dr3[0] = 10;
            dr3[1] = 2.00875957481366E-174;
            dt1.Rows.Add(dr3);
            DataRow dr4 = dt1.NewRow();
            dr4[0] = 10;
            dr4[1] = 2.11875691981658E-185;
            dt1.Rows.Add(dr4);
            DataRow dr5 = dt1.NewRow();
            dr5[0] = 9;
            dr5[1] = 7.46979737092772E-108;
            dt1.Rows.Add(dr5);
            DataRow dr6 = dt1.NewRow();
            dr6[0] = 9;
            dr6[1] = 4.52526441797696E-184;
            dt1.Rows.Add(dr6);
            DataRow dr7 = dt1.NewRow();
            dr7[0] = 9;
            dr7[1] = 0;
            dt1.Rows.Add(dr7);
            DataRow dr8 = dt1.NewRow();
            dr8[0] = 8;
            dr8[1] = 6.38942412474707E-33;
            dt1.Rows.Add(dr8);
            DataRow dr9 = dt1.NewRow();
            dr9[0] = 8;
            dr9[1] = 3.40282E+38;
            dt1.Rows.Add(dr9);
            DataRow dr10 = dt1.NewRow();
            dr10[0] = 8;
            dr10[1] = 0;
            dt1.Rows.Add(dr10);
            DataRow dr11 = dt1.NewRow();
            dr11[0] = 8;
            dr11[1] = 3.40282E+38;
            dt1.Rows.Add(dr11);
            DataTable dt2 = new DataTable();
            dt2.Columns.Add("X", typeof(double));
            dt2.Columns.Add("Y", typeof(double));
            DataRow dr12 = dt2.NewRow();
            dr12[0] = 6.4;
            dr12[1] = 4.08426213706027E+304;
            dt2.Rows.Add(dr12);
            DataRow dr13 = dt2.NewRow();
            dr13[0] = 6.85;
            dr13[1] = 1.7189571678554E+253;
            dt2.Rows.Add(dr13);
            DataRow dr14 = dt2.NewRow();
            dr14[0] = 7.3;
            dr14[1] = 1.01973808521079E+205;
            dt2.Rows.Add(dr14);
            DataRow dr15 = dt2.NewRow();
            dr15[0] = 7.75;
            dr15[1] = 5.69372687861038E+160;
            dt2.Rows.Add(dr15);
            DataRow dr16 = dt2.NewRow();
            dr16[0] = 8.2;
            dr16[1] = 1.63064051393222E+121;
            dt2.Rows.Add(dr16);
            DataRow dr17 = dt2.NewRow();
            dr17[0] = 8.65;
            dr17[1] = 6.02633699220662E+86;
            dt2.Rows.Add(dr17);
            DataRow dr18 = dt2.NewRow();
            dr18[0] = 9.1;
            dr18[1] = 2.2430148281314E+57;
            dt2.Rows.Add(dr18);
            DataRow dr19 = dt2.NewRow();
            dr19[0] = 9.55;
            dr19[1] = 2.27890359741445E+32;
            dt2.Rows.Add(dr19);
            DataRow dr20 = dt2.NewRow();
            dr20[0] = 10;
            dr20[1] = 100158090928.61;
            dt2.Rows.Add(dr20);
            DataTable dt3 = new DataTable();
            dt3.Columns.Add("X", typeof(double));
            dt3.Columns.Add("Y", typeof(double));
            DataRow dr21 = dt3.NewRow();
            dr21[0] = 1;
            dr21[1] = 1.16358004861699E+82;
            dt3.Rows.Add(dr21);
            DataRow dr22 = dt3.NewRow();
            dr22[0] = 1.45;
            dr22[1] = 2.18570166198165E+72;
            dt3.Rows.Add(dr22);
            DataRow dr23 = dt3.NewRow();
            dr23[0] = 1.9;
            dr23[1] = 2.73310532655426E+62;
            dt3.Rows.Add(dr23);
            DataRow dr24 = dt3.NewRow();
            dr24[0] = 2.35;
            dr24[1] = 2.09903561209854E+52;
            dt3.Rows.Add(dr24);
            DataRow dr25 = dt3.NewRow();
            dr25[0] = 2.8;
            dr25[1] = 8.93834056380673E+41;
            dt3.Rows.Add(dr25);
            DataRow dr26 = dt3.NewRow();
            dr26[0] = 3.25;
            dr26[1] = 1.85036669017211E+31;
            dt3.Rows.Add(dr26);
            DataRow dr27 = dt3.NewRow();
            dr27[0] = 3.7;
            dr27[1] = 1.5691929836259E+20;
            dt3.Rows.Add(dr27);
            DataRow dr28 = dt3.NewRow();
            dr28[0] = 4.15;
            dr28[1] = 434981707.291244;
            dt3.Rows.Add(dr28);
            DataRow dr29 = dt3.NewRow();
            dr29[0] = 4.6;
            dr29[1] = 0.00029153678812653;
            dt3.Rows.Add(dr29);
            DataRow dr30 = dt3.NewRow();
            dr30[0] = 5.05;
            dr30[1] = 3.14330332192612E-17;
            dt3.Rows.Add(dr30);
            DataRow dr31 = dt3.NewRow();
            dr31[0] = 5.5;
            dr31[1] = 3.12790790490833E-31;
            dt3.Rows.Add(dr31);
            DataRow dr32 = dt3.NewRow();
            dr32[0] = 5.95;
            dr32[1] = 1.34315248213562E-46;
            dt3.Rows.Add(dr32);
            DataRow dr33 = dt3.NewRow();
            dr33[0] = 6.4;
            dr33[1] = 8.85885079861335E-64;
            dt3.Rows.Add(dr33);
            DataRow dr34 = dt3.NewRow();
            dr34[0] = 6.85;
            dr34[1] = 2.28577135947854E-83;
            dt3.Rows.Add(dr34);
            DataRow dr35 = dt3.NewRow();
            dr35[0] = 7.3;
            dr35[1] = 4.18423481557931E-106;
            dt3.Rows.Add(dr35);
            DataRow dr36 = dt3.NewRow();
            dr36[0] = 7.75;
            dr36[1] = 8.13794788072479E-133;
            dt3.Rows.Add(dr36);
            DataRow dr37 = dt3.NewRow();
            dr37[0] = 8.2;
            dr37[1] = 3.08574584486458E-164;
            dt3.Rows.Add(dr37);
            DataRow dr38 = dt3.NewRow();
            dr38[0] = 8.65;
            dr38[1] = 9.06717115881249E-201;
            dt3.Rows.Add(dr38);
            DataRow dr39 = dt3.NewRow();
            dr39[0] = 9.1;
            dr39[1] = 2.64545226449627E-242;
            dt3.Rows.Add(dr39);
            DataRow dr40 = dt3.NewRow();
            dr40[0] = 9.55;
            dr40[1] = 2.82756740352045E-288;
            dt3.Rows.Add(dr40);
            DataRow dr41 = dt3.NewRow();
            dr41[0] = 10;
            dr41[1] = 0;
            dt3.Rows.Add(dr41);

            dtList.Add(dt1);
            dtList.Add(dt2);
            dtList.Add(dt3);
            return dtList;
        }

Please help to fix this issue, thanks.

[Sandra]

Hello sim,

You are right. I have added it in bug list report with number [TF02016018]. We will try to fix it for next maintenace releases of TeeChart.Net.

Thanks,

[Sandra]

Hello sim,

I inform you that the bug number [TF02016018] is not a bug of TeeChart.Net, so this is a problem with the range of System.Double. Have a look at this code, using two double values without TeeChart:

Code: Select all

double d1 = 4.08426213706027E+304;
double d2 = 1.7189571678554E+253;
double d3 = d1 - d2;
MessageBox.Show((d1.CompareTo(d3) == 0) ? "Equal" : "Unequal"); 

How you can see, the result is Equal, therefore the range of Double of .Net Framework can not represents numbers with range of values as 4.08426213706027E+304;.

Thanks,