Data Visualization with D3.js Cookbook

Implementing a custom interpolator

In some rare cases, you might find that the built-in D3 interpolators are not enough to handle your visualization requirement. In such situations, you can choose to implement your own interpolator with specific logic to handle your needs. In this recipe, we will examine this approach and demonstrate some interesting use cases.

Getting Ready

Open your local copy of the following file in your web browser:

https://github.com/NickQiZhu/d3-cookbook/blob/master/src/chapter4/custom-interpolator.html

How to do it...

Let's take a look at two different examples of custom interpolator implementation. In the first example, we will implement a custom function capable of interpolating price in dollars, while in the second one ...