Amnon,
Is there a multi-touch feature for pinch style zooming and single tap and drag panning available for the charts? I.e. for use on mobile devices.
Sorry, pinch zoom is not available as of now. However, it’s there in our wish-list but no definite timeline yet.
If not, is there way to rescale X-min/max limits with touch input and re-render chart?
You can programmatically zoom / pan into a region by setting viewportMinimum & viewportMaximum. Please take a look at this JSFiddle for an example on updating viewportMinimum & viewportMaximum programmatically based on dropdown values.
—-
Manoj Mohan
Team CanvasJS