Browse Prior Art Database

Stroke Character Font Caching in Software Graphic System

IP.com Disclosure Number: IPCOM000114285D
Original Publication Date: 1994-Dec-01
Included in the Prior Art Database: 2005-Mar-28
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Kamata, Y: AUTHOR [+2]

Abstract

Disclosed is a stroke character font caching which enables a software graphic system to draw characters fast by using a cached stroke data of a character.

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Stroke Character Font Caching in Software Graphic System

      Disclosed is a stroke character font caching which enables a
software graphic system to draw characters fast by using a cached
stroke data of a character.

      When a software graphic system accepts a character code point
from an application, it looks up a cache.  If a stroke data for the
character exists, it is used for transforming or drawing the
character.  Otherwise, the software graphic system reads the font
data of the code point typically from file system, creates a stroke
data from it, and stores it into the cache for later use.

      Cached font can be in a format more natural to subsequent
graphics processing (e.g., transformation/clipping), and it does not
require file system access.

      This method is not limited to a stroke font data.  If the font
data is complicated and takes long time to create data for further
processing, this method works effectively.