values seem not to match when using x2 axis log scale

[putoyair]

I have an semilog excel plot that I would like to do with zedgraphgraph here: http://i.stack.imgur.com/belpk.png

then I have http://i.stack.imgur.com/9dhrv.png

So the problem is the values do not seem to match, aka (125,0) is being displayed in a very short distance when comparing to excel graph, I do not know what I am doing wrong, could you please help me out? What is it needed to get the most similar to excel plot ?

this is the code:

        Dim pane As New GraphPane()
        'X2 AXIS 
        pane.X2Axis.IsVisible = True
        pane.XAxis.IsVisible = False
        pane.YAxis.Scale.IsReverse = True
        pane.YAxis.Scale.IsPreventLabelOverlap = True
        ' ACTIVATE log type
        pane.X2Axis.Type = AxisType.Log
        pane.AxisChange()
        ' Y axis scale
        pane.YAxis.Scale.Min = -20
        pane.YAxis.Scale.Max = 120

        'the data

        Dim list As New PointPairList()
        Dim list2 As New PointPairList()        
        list.Add(0, 0)
        list.Add(125, 0)
        list.Add(250, 0)
        list.Add(500, 5)
        list.Add(750, 5)
        list.Add(1000, 10)
        list.Add(1500, 10)
        list.Add(2000, 5)
        list.Add(3000, 10)
        list.Add(4000, 10)
        list.Add(6000, 10)
        list.Add(8000, 20)
        list2.Add(125, 30)
        list2.Add(500, 30)
        list2.Add(750, 40)
        list2.Add(1000, 50)
        list2.Add(1500, 65)
        list2.Add(2000, 65)
        list2.Add(3000, 70)
        list2.Add(4000, 80)
        list2.Add(6000, 90)
        list2.Add(8000, 100)
        Dim myCurve As LineItem = pane.AddCurve("Series 1", list, Color.Blue, SymbolType.Diamond)
        Dim myCurve2 As LineItem = pane.AddCurve("Series 2", list2, Color.Magenta, SymbolType.Square)

[lmat]

Dear Mr. Yair,

Well, first things first: I don't see the point 0, 250 anywhere on the
second graph (I presume this is the Zedgraph output). In the first graph
(which I am presuming is the one from Excel), the smallest X value is 100,
the largest is 10000. In the second graph, the smallest x value is .1, the
largest, 10. Can you account for this discrepancy?

In Christ,
Aaron Laws

On Tue, Feb 26, 2013 at 3:47 AM, putoyair putoyair@users.sf.net wrote:

I have an semilog excel plot that I would like to do with zedgraphgraph
here: http://i.stack.imgur.com/belpk.png

then I have http://i.stack.imgur.com/9dhrv.png

So the problem is the values do not seem to match, aka (125,0) is being
displayed in a very short distance when comparing to excel graph, I do not
know what I am doing wrong, could you please help me out? What is it needed
to get the most similar to excel plot ?

this is the code:

    Dim pane As New GraphPane()
    'X2 AXIS         pane.X2Axis.IsVisible = True        pane.XAxis.IsVisible = False        pane.YAxis.Scale.IsReverse = True        pane.YAxis.Scale.IsPreventLabelOverlap = True        ' ACTIVATE log type
    pane.X2Axis.Type = AxisType.Log
    pane.AxisChange()
    ' Y axis scale        pane.YAxis.Scale.Min = -20        pane.YAxis.Scale.Max = 120
    'the data

    Dim list As New PointPairList()
    Dim list2 As New PointPairList()
    list.Add(0, 0)
    list.Add(125, 0)
    list.Add(250, 0)
    list.Add(500, 5)
    list.Add(750, 5)
    list.Add(1000, 10)
    list.Add(1500, 10)
    list.Add(2000, 5)
    list.Add(3000, 10)
    list.Add(4000, 10)
    list.Add(6000, 10)
    list.Add(8000, 20)
    list2.Add(125, 30)
    list2.Add(500, 30)
    list2.Add(750, 40)
    list2.Add(1000, 50)
    list2.Add(1500, 65)
    list2.Add(2000, 65)
    list2.Add(3000, 70)
    list2.Add(4000, 80)
    list2.Add(6000, 90)
    list2.Add(8000, 100)
    Dim myCurve As LineItem = pane.AddCurve("Series 1", list, Color.Blue, SymbolType.Diamond)
    Dim myCurve2 As LineItem = pane.AddCurve("Series 2", list2, Color.Magenta, SymbolType.Square)

---

values seem not to match when using x2 axis log scalehttps://sourceforge.net/p/zedgraph/discussion/392231/thread/b08bc627/?limit=50#283e

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[putoyair]

Thanks for response:

I don't see the point 0, 250 anywhere on the
second graph (I presume this is the Zedgraph output).
---- You are correct it is zedgraph output, I forgot to include this point, also I forgot to delete the list.Add(0, 0)...

In the first graph (which I am presuming is the one from Excel),
- yes the fisrt graph is a excel plot

the smallest X value is 100, the largest is 10000.
- absolutely right, x goes like this, 100,1000,10000, the values for x2 I have are and it would be awesome to have them as x2 labels are:
x2axis values = {125,250,500,750,1000,1500,2000,3000,4000,6000,8000}
for y={-20,0,20,40,60,80,100,120}

In the second graph, the smallest x value is .1, the
largest, 10. Can you account for this discrepancy?
- that is one problem, the smallest value for x2axis is 100, the only value that changes is y as described above, the problem here is I am using a semilog plot, but I am not getting the correct x2axis displayed values.
Besides having the correct x2 values i would like to have according labels, do you find any missing instruction?

I mean the points for graph 1

(125, 0)
(250, 0)
(500, 5)
(750, 5)...

are too 'squeezed' not as in excel plot, the output of zedgraph is fine, the only issue is the points are not being log scaled... Also the first graph goes from 100 to 10000, second graph must be the same

I hope I explained the issue.

Thank you.