In this chapter, we've explored a couple of the D3 APIs that we skipped in the previous chapters. We first looked at the different symbols supported by D3 that you can easily use in line charts or scatterplots. Next, we looked at how you can use the d3.path API directly to draw lines and shapes. We also looked at an alternative use of paths, where we use them to define how an animated object moves across the screen. In the second part of this chapter, we focused on how to import and export SVG visualizations. We first showed how to export an SVG element as a PNG and as an SVG. After that, we showed how to load an external SVG file and use it in D3. Finally, we looked at the d3.brush API, which can be used to select multiple elements on the screen.
In the next chapter, which is the last one, we'll explore some of the third-party extensions of D3 and how you can use D3 in ES6 and TypeScript.
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