StrokeVertex.point2d() instead of .getPoint(). It is noted that .point2d()
returns a 3-dimensional vector representing a 2D-projected point, with the z
component indicating a normalized depth of the original 3D point, whereas
.getPoint() returns a plain 2-dimensional vector. This fix should have been
done in revision 48510...
Also made fix for callers of Stroke.Resample() not calling stroke.UpdateLength().