Interactions that affect multiple separate charts in d3.js?

Question

I\'m trying to create a data visualization in d3.js that contains two charts: a parallel-axis plot, and horizontal colorbar chart (I just made up that name, but it\'s basica

Answer 1

One way to link the two graphs independent of the code used to create them would be to assign IDs or classes to the elements you may want to select. That is, if graph 2 has an element with ID foo, then in a mouse handler for an element of graph 1, you could say d3.select("#foo").style("stroke", "red") for example. Similarly with classes.

This approach allows you to keep the code completely separate. Moreover, if you use classes, you can assign the same class to things you would want to highlight together (e.g. elements representing the same data). Then d3.selectAll(".class") would select and allow you to manipulate all of them. This would work for an arbitrary number of graphs, not just two -- what changes is simply the number of elements that will be selected.