i hope g-canvas can able to zoom in and out

[hcxcomeon]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

I hope the canvas can be zoomed in and out when using the annotation plugin, Because annotation requires more precise operations sometimes, then I can zoom in the canvas to annotation the box

What does the proposed API look like?

like 'setZoomByViewportPoint'，The coordinates of points change with the canvas zooms in and out

[xiaoiver]

Thanks for your feature request. Can you use camera API like setZoom?

Here's the DEMO.
https://codesandbox.io/p/sandbox/shi-yong-g-hui-zhi-path-forked-t6nvl7?file=%2Findex.js%3A50%2C23