The directional response of a two‐ or three‐dimensional point array is a function of two independent directions and also a function of frequency. A suitable mapping of these three parameters into a pseudodirection and a pseudofrequency allows the examination of the major and minor lobe structure of the array response with only a two‐parameter computation. This method has been applied during the design of a 32‐element planar array, to permit adjustment of the element positions for a minimum and uniform minor‐lobe structure.