So far, we have seen how to create custom cartesian and polar charts. The third type of chart offered by Sencha Charts is spacefilling. A spacefilling chart offers a drawing area inside which anything can be drawn. It does not have coordinate systems like cartesian and polar charts. Examples of spacefilling charts are: Gauge, Treemap, Mindmap, and so on.
In this chapter, you will learn how to create custom spacefilling charts by:
Creating a custom sprite
Creating a custom series
Using the custom series with a spacefilling chart
Working with changing store data
Scaling up/down different dimensions dynamically
Deriving custom color coding logic