Using an area generator
Using D3 line generator, we can technically generate an outline of any shape; however, even with a different curve support, directly drawing an area using line (as in an area chart) is not an easy task. This is why D3 also provides a separate shape generator function specifically designed for drawing area.
Open your local copy of the following file in your web browser:
How to do it...
In this recipe, we will add a filled area to a pseudo line chart, effectively turning it into an