Cahill-Keyes Megamap prototypes
Fig 7. Another view of the Megamap’s 16-panel assembly prototype, toward a template for the graticule, with a closer view of the Maritime provinces outtake. A single octant would be 62 square meters. The 20 x 40 meter Megamap comprises 800 square meters, but the graticule and geographic contents only occupy 496 of those square-meter panels; the rest are backdrop. The square accent lines now enclose a grid of 200 x 200 mm, where each millimeter represents a kilometer: i.e., a 1/1,000,000 map. These panels were hand-drafted in pencil, using x-y coordinates manually compiled from a Sharp EL-515 calculator, and others output with a BASIC program.
© 1978, 1980, 2009 by Gene Keyes
Photo by Peter Weeks, 1983-10-21
