Terraformer is an open source Geometry toolkit giving you access to multiple geo formats and coordinate systems, as well as basic geometric functionality for the browser and node.js.
Learn more about Terraformer at https://github.com/esri/Terraformer
I've spoken at several events, and have given a talk about Terraformer at PDX Node, and Esri Dev Summit.
Esri Portland R&D Center
Jerry loves software, hardware, lego, and flying things.