Two Simple Algorithms For Displaying Orthographic Projections of Surfaces (opens in new tab)

Two Simple Algorithms For Displaying Orthographic Projections of Surfaces Woodham, Robert J. Two simple algorithms are described for displaying orthographic projections of surfaces. The first, called RELIEF-PLOT, produces a three-dimensional plot of a surface z = f(x,y). The second, called SHADED-IMAGE, adds information about surface reflectivity and source illumination to produce a grey level image of a surface z = f(x,y). Both algorithms demonstrate how a systematic profile expansion can b...