(and yes, rotating [0, 1, 0] by [-90, 0, 0] should actually make make [0, 0, -1]) :)
On 21 February 2013 14:15, Peter Agg <[email protected]> wrote: > Hey all, > > I'm trying to rotate a vector in a Python Script and seem to be running > into an odd block. For example: I want to rotate the vector [0, 1, 0] by > [-90, 0, 0], which should make [-1, 0, 0] (and does so if I test in ICE > using a Rotate Vector node) but I can't seem to work out how to do this via > scripting. > > What I tried: > > vec = XSIMath.CreateVector3(0, 1, 0) > rot = XSIMath.CreateRotation(XSIMath.DegreesToRadians( -90 ), > XSIMath.DegreesToRadians( 0 ), > XSIMath.DegreesToRadians( 0 )) > vec.MulByRotationInPlace( rot) > print vec.X, vec.Y, vec.Z > # 0.0 6.12323399574e-17 -1.0 > > ...which makes me think that I've misunderstood what MulByRotation does! > > Any ideas? >
