arc direction with addByThreePoints?

[Anonymous]

Is there any way to set the direction of the arc when drawing an arc with addByThreePoints? I have the problem of it drawing the arc to the wrong direction and not having any way of knowing when it's right or not, it is kinda taking the long path instead of the short one. 

[Anonymous · Accepted solution]

ok, its doing the right thing. My math was bad.

[frankzhang]

You can change the start point and point along the arc to get expected arc, see below image for reference.