Network: Consistent node sizing options

[cityy]

Continuing the discussion from #3171

Currently, how you control the size of nodes depends on what node shape you are deploying. (size for image, circularImage, diamond, dot, star, triangle, triangleDown, square and icon; widthConstraint for all label based node shapes.

size:

The size is used to determine the size of node shapes that do not have the label inside of them. These shapes are: image, circularImage, diamond, dot, star, triangle, triangleDown, square and icon
http://visjs.org/docs/network/nodes.html

That's the behaviour I am referring to. Size should set the size, no matter what shape, for the sake of consistency. That way widthConstraint would become obsolete (there could still be something like min/max-size if required). Inheriting size from Label should be an option that can be true by default and considers min- / max-size.

[wimrijnders]

I find this a very reasonable request, worth looking into. Consistency in usage is a beneficial thing.

However, I'm afraid I'm not going to pick it up any time soon, simply due to triage (bugs and priority stuff first). Of course, anyone else is free to have a go at it.