Multi touch zoom not working on genogram

GoJS
1

Can somebody please show me, how to enable multi touch zoom in Genogram (link & code from gojs site)

ctrl++ is working fine, but not multi touch

I want to see gengram in mobile with zoom and pan option, in addition I just want select node option for showing extra details of node. I do not want node or link moving or new link creation.

I tried for many days but could not do it.

I read about standardPinchZoomStart but do not know how to use it. can somebody give example code.

2

We did improve pinch zooming in 1.7.13, but I see now that it could still be better. We’ll look into it. Thanks for reporting the problem.

3

What platform are you using? I don’t see any issues with multi touch zooming.