Center an axis at 0

[BWThorp]

I have a data set that goes above and below the Y axis. One data set has the value 5 and the value -500. Another data set that I have has a value of 1100 and a value -90. What I would like to do is center 0 on the Y axis so that you can get a visible indicator of how high above or below you are.

I don't necessarily have to see the whole graph on the display, but I need the scale above and below to be the same.

Any help would be greatly appreciated.

[Christopher]

Hi -

I have a data set that goes above and below the Y axis. One data set has the value 5 and the value -500. Another data set that I have has a value of 1100 and a value -90. What I would like to do is center 0 on the Y axis so that you can get a visible indicator of how high above or below you are.

I don't necessarily have to see the whole graph on the display, but I need the scale above and below to be the same.

Any help would be greatly appreciated.

You could try the IAxis.SetMinMax method, e.g.

Code: Select all

Private Sub Form_Load()
With TChart1
    .Aspect.View3D = False
    .AddSeries scPoint
    .Series(0).Add 5, "", clTeeColor
    .Series(0).Add -500, "", clTeeColor
    
    .AddSeries scPoint
    .Series(1).Add 1100, "", clTeeColor
    .Series(1).Add -90, "", clTeeColor
    
    .Axis.Left.SetMinMax -2000, 2000
End With
End Sub