GeoJSON and TopoJSON
Explore GeoJSON and TopoJSON to understand how D3.js manages geographic data for mapping. Learn the differences between these formats and how TopoJSON improves data efficiency by reducing redundancy and file size. This lesson helps you grasp geographic data structures essential for creating interactive maps.
We'll cover the following...
We'll cover the following...
Another string to the bow of D3.js is the addition of a set of powerful routines for handling geographical information.
In the same sense that a line graph is a simple representation of data on a document, a map can be regarded as a set of points with an underlying coordinate system. When you say it like that, it seems obvious that it should be applied as a document ...