Possible Duplicate: Approximating earth as sphere We are in a situation where spherical distance computations may be more convenient and faster than ellipsoidal ones. However, I am ...
What level of error do I encounter when approximating the earth as a sphere? Specifically, when dealing with the location of points and, for example, the great circle distances between them. Are ...
Is there a basic or introductory study that examines and compares the precision of spatial data when working with varying precison of the data input, like having 1, 2, ... decimal places? with the ...