Reset on synchronized graphs failed

[ghplink]

In Synchronization example zoom y range in one graph by mouse drag. After that a double-click in another graph does not reset ranges. Even reset in first graph won't work anymore.
Defect is in version 1.1.0

[danvk]

Thanks for the report. I see this on both

http://dygraphs.com/1.1.0/tests/synchronize.html
http://dygraphs.com/1.0.1/tests/synchronize.html

[danvk]

The core issue here is that resetZoom (which is called when you double-click on a chart to zoom out) doesn't reset the y-axis zoom when it's been set programmatically. It only resets the x-axis zoom. This doesn't make much sense, but it's a behavior that I'm reluctant to change for a point release. This may have to wait for 2.0.

[danvk]

See #326

[danvk]

I think the right behavior is for double-clicking to be the same as calling resetZoom. And they should zoom out to the full range of the data on both axes.

The isZoomedIgnoreProgrammaticZoom option may be relevant here:

When this option is passed to updateOptions() along with either the dateWindow or valueRange options, the zoom flags are not changed to reflect a zoomed state. This is primarily useful for when the display area of a chart is changed programmatically and also where manual zooming is allowed and use is made of the isZoomed method to determine this.

See http://dygraphs.com/tests/is-zoomed-ignore-programmatic-zoom.html