Chapter 12. Knowing Your Map
In this chapter we will cover:
- Projecting the US map
- Projecting the world map
- Building a choropleth map
Introduction
The ability to project and correlate data points to geographic regions is crucial in many types of visualizations. Geographic visualization is a complex topic with many competing standards emerging and maturing for today's web technology. D3 provides a few different ways to visualize geographic and cartographic data. In this chapter, we will introduce basic D3 cartographic visualization techniques and how to implement a fully-functional choropleth map (a special purpose colored map) in D3.
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