Google Maps essentially uses two Graph algorithms — Dijkstra's algorithm and A* algorithm, to calculate the shortest distance from point A ( Source) to point B ( destination). A graph data structure is essentially a collection of nodes that are defined by edges and vertices.

Introduction. Using Maps URLs, you can build a universal, cross-platform URL to launch Google Maps and perform searches, get directions and navigation, and display map views and panoramic images. The URL syntax is the same regardless of the platform in use. You don't need a Google API key to use Maps URLs.

If you don't specify a value for saddr , the starting point is “here.” An address string that geolocation can understand. daddr. The destination address to be used as the destination point for directions.