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Visual Display of a Set of Simultaneous Measurements

IP.com Disclosure Number: IPCOM000083799D
Original Publication Date: 1975-Jul-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 3 page(s) / 40K

Publishing Venue

IBM

Related People

Clark, IA: AUTHOR

Abstract

A graphic display known as a 'profile' is used to display simultaneously several variables in a rapidly assimilable form. A modification of the profile may be made to provide a meaningful polygonal area.

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Visual Display of a Set of Simultaneous Measurements

A graphic display known as a 'profile' is used to display simultaneously several variables in a rapidly assimilable form. A modification of the profile may be made to provide a meaningful polygonal area.

To display n quantities simultaneously an n-sided polygon is often used. The radii xi, i = 1, 2 ---, n from a fixed internal point are made proportional to the quantities displayed. In this simple case, the internal area is without significance and can mislead the viewer.

In order to provide a display with an internal area which has a relationship to the displayed quantities, then a 2n-sided polygon is used. The alternate radii of this polygon are of length xi, and r, respectively, where r remains constant while the xi change.

Then the internal area is proportional to the sum of the n quantities x1 + x2 --- , +xn, and may signify an overall resource of which xi, suitably scaled, is a component. Choice of r sets a threshold at which the apex i switches between acute and obtuse.

The display can be used on the IBM 2250 VDU or implemented on any 2- dimensional graphic medium.

Fig. 1 is a conventional polygonal display on which the radii (0,A) to (0,H) may represent the cash flows into various activities, for example a municipal authority being modelled as a time-varying process. The enclosed area suggests the total financial resources available, but in practice does not.

Fig. 2 is a modified display using the same input parameter...