The graph area can't be negative

[sahmad]

I have a ViewXY chart that ends up having a high number of x-axes. As a result the margins become too large and render the graph area negative. The chart area is not shown.

If I try to set

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Chart.ViewXY.AxisLayout.AutoAdjustMargins = false;

The chart is shown but not all axes can be visible.

Is there a way to have scrolling on all the x-axes? Or any other way to set a limit on the graph area?

[ArctionKestutis]

There few thing you can do to resolve issue:

1) try to reduce gap between segment, which should increase segment size (e.g. _chart.ViewXY.AxisLayout.SegmentsGap = 0;)

2) Change Y-axes layout. For example, you can use segment layout (_chart.ViewXY.AxisLayout.YAxesLayout = YAxesLayout.Segmented) with multiple Y-axes in single segment. See User Manual chapter 6.1.2.3 Segmented and Demo's ExampleYAxesLayouts.

3) Add scrollable control in your application, where Chart should be added. This will allow to increase height of chart, where scrolling bar helps you to see/find you desired y-axis.. In WPF it would be ScrollViewer, while in WinForms Scrollable Panel could be also created.

Hope this helps.

[sahmad]

Thanks for getting back to me.

changing the segments gap did not change anything.

And just to clarify, I only have 1 Y-axis but I have around 20 X-axes.

Is there a possibility to have scrolling over the x axes only? such that the graph area remains fixed?

At the moment I can adjust

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Chart.ViewXY.Margins

but that still cuts out several X-axes from the view.

[ArctionKestutis]

You can disable X-Axis auto-placement

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_chart.ViewXY.AxisLayout.XAxisAutoPlacement = XAxisAutoPlacement.Off;

and then use Axis.Position property accordingly (Position percentage relatively to Height of GraphArea).
If you want, you can pack them all to single horizontal line.

[sahmad]

Hi,

Packing them to a single horizontal line will not be feasible. There are too many axes and it becomes hard to read.

Is it possible to not show the axis but still show its corresponding data in the graph? I'm thinking of allowing the user to select which axes to display on the chart, but have the chart itself show all the data.

Thanks

[ArctionKestutis]

That is basically that I meant by 'packing': put all axis is same Position and then manipulate Axis.Visible property. It will hide/show only axis itself, but not data/series assigned to that axis.
Series has own Visible property, if you want to hide it temporally.

[sahmad]

Ah yes ok I get what you mean. Think what I'm going to do now is to have all the data shown in the chart but only show number of x-axes up to a defined limit. All series will be plotted but not all x-axes will be visible. I'll allow the user to select which x-axes are visible up to the limit.

Correct me if I'm wrong, but that would mean that the Series.Visible = true, but I would only have to set

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_chart.ViewXY.XAxes[i].Visible = false

to ensure that the series is shown in the chart but not the x-axis?

Thanks!

[ArctionKestutis]

yes, it is correct.