[spunkster21]

I'm trying to determine if a point lies between two vectors and I'm not sure how to go about that in an efficient manner. Here's an example of what I'm trying to achieve, I hope it makes sense.

Vector 1: 100, 200, 100
Vector 2: 200, 100, 200
Vector 3: 150, 150, 150
Vector 4: 300, 100, 100

I want to know that vector 3 is between vectors 1 and 2, but vector 4 isn't because of its x coordinate.

Thanks.

[neo_gis]

please make clear what you mean "between" two vectors ?

[Scone]

If you're trying to tell whether a position vector C is on the straight line between position vectors A and B, just normalize the direction vectors AB and AC, then check them for equality.