Browse Prior Art Database

Selection Emphasis of Graphic Objects

IP.com Disclosure Number: IPCOM000101958D
Original Publication Date: 1990-Sep-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 2 page(s) / 82K

Publishing Venue

IBM

Related People

Cummins, B: AUTHOR [+2]

Abstract

Described is a method of emphasizing selection of an on-screen object in a graphics color display system by dimming the background rather than by brightening the object. The specific programming technique is to mask the entire screen with a partially opaque overlay and to rewrite the selected object at normal intensity over the top. The computer user is assisted by clearly showing which objects have been selected without destroying any information about other objects.

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This is the abbreviated version, containing approximately 95% of the total text.

Selection Emphasis of Graphic Objects

       Described is a method of emphasizing selection of an
on-screen object in a graphics color display system by dimming the
background rather than by brightening the object.  The specific
programming technique is to mask the entire screen with a partially
opaque overlay and to rewrite the selected object at normal intensity
over the top.  The computer user is assisted by clearly showing which
objects have been selected without destroying any information about
other objects.

      Most computer color graphic programs that allow the user to
modify the attributes (color, style, pattern, etc.) of graphically
displayed objects, indicate selection to the user by changing the
color or style of the object selected. In this new method the
selected object is left alone and the remaining objects are
de-emphasized by coloring and or shading in a muted color.  It allows
the user to see the object(s) selected with their original
attributes, but does not lose the context in which they were
displayed.

      Fig. 1 illustrates the concept of a semi-opaque mask between
original and screen displayed.  Objects selected by program are
allowed display without interference by the mask.  Fig. 2 is
monochrome reproduction of a five-color pie chart without
de-emphasis.  Fig. 3 shows the same display but with a program mask
writing sector-three with unchanged color; the remainder of the chart
in Fig. 3 is uniformly modified by the color ch...