I have a large data file of upto 1 million x,y,z coordinates of points. I want to identify which points are within 0.01 mm from each other. I can compare the distance from each point to every other point , but this takes 1 million * 1 million operations, or forever!
Any quick way to do it, perhaps by inserting just the integer portion of the coordinates into an array, and checking if the integer has already been defined before inserting a new point? -- http://mail.python.org/mailman/listinfo/python-list
