Andy Woodruff has invented a sort of hydrodynamics physics engine for interactive maps. It allows him to practise an animated map which visualizes H2O drainage catamenia for whatever place on Earth.
In the Rain on the Terrain Andy tries to answer the inquiry of where H2O would catamenia if y'all poured it over the terrain at whatever place on the planet. His solution is essentially to role meridian information to notice the lowest following place for whatever given location. Drop to a greater extent than or less H2O at this place in addition to it volition notice the path of to the lowest degree resistance in addition to movement to the following place amongst this lowest elevation.
Repeat this procedure in addition to y'all tin plot a long path of the to the lowest degree resistance, moving downhill. If y'all in addition to therefore animate a polyline along this path y'all tin practise a map of flowing rivers. Andy's map allows y'all to visualize the animated catamenia map of drainage for whatever place on globe (based on his unproblematic algorithm). The map too includes to a greater extent than or less quick links to zoom the map to a position out of locations amongst interesting terrain.
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