The product-dealy algorithm: graphic design with amplitude- and frequency-modulated waveforms

摘要

In a recent paper (Sen AK.Computers & Graphics 1999;22(6):759-764), the product-delay algorithm was presented as a menas of creating graphic designs on a computer. The algorithm was illustrate with sine and square waves. It was shown that a multitude of interesting geometric patterns can be generated with these waveforms. In this paper the product-delay algorithm is used to explore the effects of amplitude and frequency modulation on pattern formation. The strikingly different effects of amplitude and frequency modulation are illustrated with the aid of several examples.