7. The scale factor of viewport transformation for x co-ordinate is ________ a) Sy = (svmax + svmin)/ (swmax + swmin) b) Sy = (svmax – svmin)/ (swmax + swmin) c) Sy = (svmax – svmin)/ (swmax – swmin) d) Sy = (svmax + svmin)/ (swmax – swmin)
The mapping or transformation involves developing formulas that start with a point in the world window, say (xw, yw). The formula is used to produce a corresponding point in viewport coordinates, say (xv, yv). So after keeping it proportional in ‘y’ co-ordinate, we get, (svmax – svmin)/ (swmax – swmin).
