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Broken Y Axis


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Is there support in Chart FX 7 for broken Axes?  An example of what I'm talking of can be seen here: http://peltiertech.com/WordPress/broken-y-axis-in-excel-chart/. 

I would like to apply this to a line graph.  My application lets users select among a set of data to graph, and some of the series have points that are in a largely different range than the others.  If they select one series with values in the hundreds of thousands and one that varies between 10 and 20, then the chart will plot from 0 to hundred of thousands and the lower series loses its variance.  The user won't be able to see any change in the lower series that they may consider significant.


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I made a sample similar to this for someone else a while
back. Since Chart FX 7 does not support broken Y axis (Chart FX 8 will), we can
do something similar to what was suggested on the link you posted. Have 2
panes, 2 Y axis, and same data on both. Here is the code. Note that you can
modify the panes sizes, proportion and such to make it more visually appealing.

  protected void
Page_Load(object sender, EventArgs e) {


DataTable table1 = new


//Create a table with your data twice




table1.Rows.Add(new object[]
{ 10, 10 });

table1.Rows.Add(new object[]
{ 12, 12 });

table1.Rows.Add(new object[]
{ 11, 11 });

table1.Rows.Add(new object[]
{ 13, 13 });

table1.Rows.Add(new object[]
{ 89, 89 });

table1.Rows.Add(new object[]
{ 10, 10 });


Chart1.DataSourceSettings.Fields.Add(new FieldMap("Value1",

Chart1.DataSourceSettings.Fields.Add(new FieldMap("Value2",


Chart1.DataSource = table1;


Chart1.Data.Series = 2;


//Make both series the same color

Chart1.Series[1].Color = Chart1.Series[0].Color;

Chart1.Series[1].AlternateColor = Chart1.Series[0].AlternateColor;


Pane pane1 = Chart1.Panes[0];

Pane pane2 = new


Chart1.Series[0].Pane = Chart1.Panes[0];

Chart1.Series[1].Pane = Chart1.Panes[1];


pane2.AxisY.Max = 15;

pane2.AxisY.Min = 0;

pane1.AxisY.Max = 100;

pane1.AxisY.Min = 80;


//Hide the extra series from the legendbox

Chart1.LegendBox.ItemAttributes[Chart1.Series, 1].Visible = false;



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