Browse Prior Art Database

Changing Step Size in a Critical Graphical Message

IP.com Disclosure Number: IPCOM000078365D
Original Publication Date: 1972-Dec-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Ihrig, ML: AUTHOR [+2]

Abstract

Graphics may be recreated by an art work generator, responding to graphical messages expressed in digital form. This program permits the scale factor or step size included in a graphical message to be changed, according to the requirements of the art work generator. The program also enables graphical messages having different step size to be merged in a single graphical message. An art work generator will recreate both graphical forms from the merged graphical messages.

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Changing Step Size in a Critical Graphical Message

Graphics may be recreated by an art work generator, responding to graphical messages expressed in digital form. This program permits the scale factor or step size included in a graphical message to be changed, according to the requirements of the art work generator. The program also enables graphical messages having different step size to be merged in a single graphical message. An art work generator will recreate both graphical forms from the merged graphical messages.

A graphical language (CL/1) may define various geometrical forms by series of operational code. One set of codes 10, shown in Fig. 1A, defines an overall pattern or prime cell. Another set of codes 12, shown in Fig. 1B, defines standard cells or segments in the overall pattern or prime cell. Another set of codes 14, shown in Fig. 1C, is linked to each standard cell and specifies various geometrical shapes, i.e., rectangles, circles, polygons at a location in a reference system and at an aperture size as selected by a designer. Another set of codes 16, shown in Fig. 1D, translates the various standard cells and shape cells, as required to assemble the prime cell. A set of codes 17 specifies the step size by numerator (N) and denominator (D) at location reference points, in an orthogonal step coordinate system. A graphical message 18, shown in Fig. 2, defines a rectangular graphical form, shown in Fig. 3, and defined in the graphical language by Figs. 1A, 1B, 1C and 1E.

A program 30, shown in Fig. 4, adjusts the step size of the graphical message to that of the art work generator, or the step size of another graphical message. By selecting the lowest common denominator as between two graphical messages, or with respect to the art work gener...