GROK Doc: An Image Display Tool

Abstract

The image display tool GROK provides a facility for displaying images on the black-and-white screen of a Symbolics 3600 monitor. It allows display of images and their manipulation through a special window it manages. Images become objects in that window, and are handled by a variety of routines accessible by mouse selection from window menus. GROK is an outgrowth of two programs- Keith Nishihara's GREY*, which provided the concept of an image manipulation and display program for black-and-white screens, and Margaret Fleck's GREYCROK, which formed the nucleus from which GROK mutated. Many of the functions in GROK are lifted directly from GREYCROK.