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Browse Prior Art Database

Piechart Control

IP.com Disclosure Number: IPCOM000113336D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Giliberti, JJ: AUTHOR [+2]

Abstract

Disclosed is a control displaying a piechart, which allows the user to adjust the size of the various "slices" in the chart, without changing the overall size of the chart. This control provides a graphical method for adjusting the relative magnitudes of the items represented by the slices of a conventional piechart, in which a circle is divided into sectors by radial lines. Each sector shows, by its area relative to the area of the entire circle, the relative magnitude of the item it represents. With the piechart control, the user may adjust the size of two adjoining sectors by repositioning the radial line extending between them, increasing the area of one of these sectors, while the area of the other sector is decreased by a like amount.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 61% of the total text.

Piechart Control

      Disclosed is a control displaying a piechart, which allows the
user to adjust the size of the various "slices" in the chart, without
changing the overall size of the chart.  This control provides a
graphical method for adjusting the relative magnitudes of the items
represented by the slices of a conventional piechart, in which a
circle is divided into sectors by radial lines.  Each sector shows,
by its area relative to the area of the entire circle, the relative
magnitude of the item it represents.  With the piechart control, the
user may adjust the size of two adjoining sectors by repositioning
the radial line extending between them, increasing the area of one of
these sectors, while the area of the other sector is decreased by a
like amount.  In this way, each radial line of the piechart may be
moved in turn to create a desired configuration.

      The various steps in this process are shown in Figs. 1 through
6.  The initial condition of the chart is shown in Fig. 1, with the
value represented by each individual segment listed below the chart.
The first step in changing the chart is shown in Fig. 2, with the
pointer being moved by the mouse into a position over the radial line
to be moved.  At this point, the graphical representation of the
pointer changes from its conventional, single-arrow shape into a
double-arrow shape indicating the directions in which the radial line
can be moved.  Next, as shown in Fig.  3, when button 2 of...