Add ability to zoom (or support horizontal scrolling)

[jvanhoose]

I have a fairly complex diagram - and, when it gets large, it becomes very difficult to get it all visible without being able to scroll left and right (everything ends up too small).

Optimally, would love an ability to zoom things - without that, would love the ability to scroll horizontally as well as vertically.

[pierreverbakel]

I would support that, in fact I believe it is inevitable as a necessity. One uses Mermaid for Diagrams which are unknown upfront, otherwise one would use a jpeg-file. The space on a screen is always limited, so to use that space zooming and panning is more than a 'nice to have', since it comes with the nature of the diagram, unsure in size and shape. D3 has capabilities which could be used for that.

[pirDOL]

Any plans for zoom or hroizontal scrolling? I also have a fairly complex diagram and it gets large.

I've tried 'graph TB' and it zooms out horizontally but can not zoom in which leads to too small to see.

[jdbranham]

Added to feature poll. https://www.patreon.com/posts/41889210

[OscarVanL]

This would be really useful for us too! We have quite a big architecture diagram and the text gets really small. You can't zoom by increasing your browser scaling either. (CTRL & +).