Hello, everyone!
Give me advice, please, how to draw chart with same cells.
Each cell must have own color or opacity.
I think use scatterChart for it:
-set coordinates x/y
-calculate and set size for pointSize property(it would by cell)
But i don't know, how to set color or opacity for each cell.
And how to add to chart a gradient legend.
This is an example of how it should look like
https://bl.ocks.org/cagrimmett/07f8c8daea00946b9e704e3efcbd5739