mobius static method
Implementation
static void mobius(double u,double t, Vector3 target ) {
// flat mobius strip
// http://www.wolframalpha.com/input/?i=M%C3%B6bius+strip+parametric+equations&lk=1&a=ClashPrefs_*Surface.MoebiusStrip.SurfaceProperty.ParametricEquations-
u = u - 0.5;
final v = 2 * math.pi * t;
const a = 2;
final x = math.cos( v ) * ( a + u * math.cos( v / 2 ) );
final y = math.sin( v ) * ( a + u * math.cos( v / 2 ) );
final z = u * math.sin( v / 2 );
target.setValues( x, y, z );
}