i use a ZoomPanModifier so that the user can drag the chart with the right mouse. First, XyDirection was not set, so the user could drag in X and Y direction.
I wanted to change this behaviour so that the modifier works like the RubberBandXyZoomModifier (with ZoomExtentsY = false). That means, only moving the chart in X-Direction, but not Y.
So i set XyDirection of the ZoomPanModifier to “XDirection”. Now, the user can’t scroll in Y. So far so good. But now the chart is autoscaled in Y direction on the first X-Movement, even with AutoRange turned off! Is this a bug? If not, what can i do to prevent this unwanted auto scaling?
There is the ZoomExtentsY property in ZoomPanModifier, it’s set to “True” by default. Seems that it causes autoscaling in the Y direction – try to set it to “False”. Optionally, take a look at the Pan X or Y direction example, there this behavior is demonstrated and you can change it using the checkbox in the top right corner.
Please, let us know if this resolves the issue.
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