NRBRECT: Construct NURBS representation of a rectangle. Calling Sequence: crv = nrbrect crv = nrbrect(size) crv = nrbrect(width, height) Parameters: size : Size of the square (width = height). width : Width of the rectangle (along x-axis). height : Height of the rectangle (along y-axis). crv : NURBS curve, see nrbmak. Description: Construct a rectangle or square in the x-y plane with the bottom lhs corner at (0,0,0). If no rhs arguments provided the function constructs a unit square.