Step 3 - Voronoi Scatterplot - Tooltip attached to circle

This scatterplot is step 3 of my blog on Using a D3 Voronoi grid to improve a chart’s interactive experience in which the tooltip is attached to the circle while the event is triggered by an invisible Voronoi grid that lies over the scatterplot

You can find all of the steps here

• Step 1: Tooltip attached to circle element
• Step 2: Tooltip attached to voronoi cell
• This is step 3 ;)
• Step 4: Extra hover effects and interactivity
• Step 5: Update with distance limiting circles - made visible
• Step 6: Final result without the extra visible cells