# Animation Nodes and Velocity

VELOCITY Animation Nodes have been very useful for me so far, but I am stumped as to how I can use an object or particle's velocity to influence other properties (like color, rotation, etc.). There's plenty of documentation out there on how to calculate one axis, but I've yet to see how to accomplish this with objects that don't move in a straight line. Any ideas?

• How are you getting the object velocity? – Scott Milner Jun 6 '18 at 16:14
• I've not gotten it so far. That's why I'm looking to see if anyone else has figured it out. If it's not known, it would be great if someone could help make it a reality. – JKee Jun 6 '18 at 17:10

Then, find the F-Curves that represents the location of the objects by searching for the path location, then sort the indices based on their F-Curve data index such that they become in the order x, y, z. Then get the F-Curves at those indices.