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Browse Prior Art Database

Continuous Viewing Ratio Control with Precise Positioning Capability

IP.com Disclosure Number: IPCOM000114071D
Original Publication Date: 1994-Nov-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 4 page(s) / 78K

Publishing Venue

IBM

Related People

Kashiwagi, K: AUTHOR

Abstract

A program is disclosed that provides a single user interface of specifying viewing ratio both for enlarging and contraction and also provides a precise positioning capability of how and where an enlargement/contraction is to be done.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 54% of the total text.

Continuous Viewing Ratio Control with Precise Positioning Capability

      A program is disclosed that provides a single user interface of
specifying viewing ratio both for enlarging and contraction and also
provides a precise positioning capability of how and where an
enlargement/contraction is to be done.

The program consists of the following steps:
  1.  When the user starts to change the viewing ratio, a small
control
       panel is displayed.  On the panel, vewing ratio is marked with
       degrees.  On the panel, the current viewing ratio is indicated
so
       that the user can tell if an operation will be an enlargement
or
       contraction.  There is also an indicator on the panel showing
the
       viewing ratio after this operation.
  2.  In a window, there showed a rectangle which area is to be
       enlarged to the full-window size after enlargement or which
area
       is the result of contraction of full window size in case of
     contraction.
  3.  By handling control panel, the user can specify viewing ratio
of
       enlargement or contraction.  According to the user's
interaction
       to the control panel, a rectangle in the window changes its
size
       continuously.  If a desired viewing ration is larger than the
       current one, the rectangle is the source of enlargement which
is
       to be enlarged to the full window size.  While the user
changes
       the viewing ration in order to be close to the current one,
the
  ...