1985 Tamaya Technics Inc. (Japan)

Tamaya Planix Digital Planimeter

Trace a closed shape on a map and the machine hands you its area — a drafting gesture turned into a computed number

HCIInputDraftingMeasuringDigital

Overview

Deep dive

Media

Tamaya Planix 7 digital planimeter — Tamaya Planix 7 digital planimeter, representative of the Planix 1980s family (photographed sample dates from the late 1990s). Wikimedia Commons, Public Domain (uploader Tilt u).

Sources