Getting Started with GEO.CouchDB and Node.js

Where. Whether it refers to where you have been, where you are, or where you are going, the concept of where is important. Where links data to the physical world. A shopping list can be a very useful collection of data on its own, but that data can be even more useful with more context. If you map the location of the stores needed for each item on the shopping list, then you can create an efficient route to acquire the items on the list. Driving directions, traffic information, and weather can impact the route. pdf格式，6M。