Graph Chart (formerly pack bubbles)

[JoshSchoen]

Feature Request

Example from, Tableau:

Considerations

• Configurable legend placement
• Color inputs options
• interfaces to describe the configuration options for good dev UX.
• custom tooltips and legend formatting
• label fonts and theming
• Event emitters to facilitate cross filtering
• annotations

[JoshSchoen]

@kyleledbetter @emoralesb05 After spending a little time looking into this I think it makes sense to close this issue in favor of a new issue to implement a graph atomic component as we can use the echarts graph series type with some helper functions to provide the x/y coordinates and the symbol size.

I added a stackbltiz as a simple example. It uses d3-hierarchy and pack as dependencies to calculate the packing layout. To me this is an implementation detail for specific use cases and layout requirements so I don't think this belongs on the library side.

There are also some responsive design considerations when using d3-hierarchy as it may need to recalculate the bubble sizes for smaller screens. In which case it's arguably be better for the developer to control that on the implementation side and leverage covalent's media service or handle it in another way.

I'm curious to see what you guys think. If you agree, I will close this issue open a new graph atomic component issues which is almost complete other than updating the docs readme file.

Thanks!

[jeremysmartt]

@JoshSchoen Feel free to modify this issue rather than open a new one.

[emoralesb05]

Taken care of with #35