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EvEdgeTangentLine "parameter" parameter

Lee_HeskethLee_Hesketh Member, Developers Posts: 148 ✭✭
Hi all. Since the EvEdgeTangentLine function has a parameter that can be a value between 0 and 1, which corresponds to a point along the line. I was wondering if I set the parameter to 0, how does FS decide which endpoint that is? I'm assuming it's to do with the direction but I'm not sure. 

I'm asking this because I have a line and I want to get a vector using the endpoints such that the direction is going in a positive one e.g. in the direction of the positive x-axis 
There are 10 types of people in the world. Those who know binary, those who don't and those who didn't expect base 3!

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