Browse Prior Art Database

Use of Cursor Keys for Manipulating Graphs

IP.com Disclosure Number: IPCOM000120298D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 1 page(s) / 30K

Publishing Venue

IBM

Related People

Bianchi, SB: AUTHOR [+3]

Abstract

This article describes a method for using the cursor keys to dynamically manipulate the shape of a graph.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Use of Cursor Keys for Manipulating Graphs

      This article describes a method for using the cursor keys to
dynamically manipulate the shape of a graph.

      By allowing a user to manipulate the shape of a graph with his
cursor keys (left, right, up, down), he can instantly change the
shape of a graph without having to recalculate any values that are
associated with the graph to see what their effect may be.

      This is done by defining each of the cursor keys to have a
different effect on the shape of the graph:
     Up arrow   : move the peak of the graph up
     Down arrow : move the peak of the graph down
     Right arrow: move the peak of the graph to the right
     Left arrow : move the peak of the graph to the left
When the user enters one of these keys, it is trapped by the program
and a value is added to the graph input to change the shape of the
graph accordingly.  This allows a user to manipulate the graph
dynamically until he is satisfied with its shape.  The user can then
go look at the values that were used to produce the graph rather than
have to keep entering them in until the graph has the correct shape.

      Disclosed anonymously.