Method and apparatus for object kerning

• US 6,686,935 B1
• Filed: 05/24/2000
• Issued: 02/03/2004
• Est. Priority Date: 05/24/2000
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Richard, Christian James
• Primary Examiner(s): Cabeca, John
• Assistant Examiner(s): BASOM, BLAINE T
• Application Number:
  US09/578,191
• Time in Patent Office: 1,350 Days
• Field of Search: 345/619, 345/681, 345/765, 345/964, 345/677, 345/651, 345/662, 345/775, 345/835
• US Class Current: 715/765
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G09G 5/243 Circuits for displaying proportional spaced characters or for kerning

Abstract

METHOD AND APPARATUS FOR OBJECT KERNINGA graphics software application provides the capability to select a plurality of graphical objects and automatically align them and adjust the spacing between them. The data processing system, under instruction of a program, responds to an instruction by the user to kern a plurality of selected graphical objects. The system aligns the objects and prompts the user to designate a distance adjustment. The system then automatically adjusts the distances between each pair of adjacent objects. Using the techniques of the present invention, a user may enter a large number of graphical objects and align them and precisely set their locations with respect to one another. Hence, a large number of graphical objects may be created and aligned quickly and efficiently without the need for numerous individual measurements.

Claims

1. A method in a data processing system for kerming a plurality of objects presented on a display, wherein each pair of adjacent objects within the plurality of objects has a distance, the method comprising the following computer implemented steps:

receiving a selection of the plurality of objects;

aligning the selected plurality of objects along a line;

receiving a distance adjustment request; and

automatically adjusting the distance between each pair of adjacent objects of the plurality of objects along the line according to the distance adjustment request in response to receiving the distance adjustment request, wherein the step of aligning the selected plurality of objects along a line comprises the following steps;

determining a center coordinate of each of the objects; and

fitting a linear regression line to centers of the objects.

2. The method of claim 1, wherein the distance adjustment request is an increase request and the step of automatically adjusting distances between each pair of adjacent objects of the plurality of objects along the line comprises decreasing the distances.

3. The method of claim 1, wherein the distance adjustment request is a decrease request and the step of automatically adjusting distances between each pair of adjacent objects of the plurality of objects along the line comprises decreasing the distances.

4. The method of claim 1, wherein the distance adjustment request includes a distance value and the step of automatically adjusting the distance between each pair of adjacent objects of the plurality of objects along the line comprises adjusting the positions of the objects so that the distance between each pair of adjacent objects is equal to said distance value.

5. The method of claim 1, wherein the step of automatically adjusting the distance between each pair of adjacent objects of the plurality of objects along the line comprises adjusting the positions of the objects so that the distances between pairs of adjacent objects are equal.

6. A method in a data processing system for kerning a plurality of objects presented on a display, wherein each pair of adjacent objects within the plurality of objects has a distance, the comprising implemented steps:

first receiving means for receiving a selection of the plurality of objects;

aligning means for aligning the selected plurality of objects along a line;

second receiving means for receiving a distance adjustment request; and

adjusting means for automatically adjusting the distance between each pair of adjacent objects of the plurality of objects along the line according to the distance adjustment request in response to receiving the distance adjustment request, wherein the aligning means comprises;

determining means for determining a center coordinate for each of the objects; and

fitting means for fitting a linear regression line to centers of the objects.

7. The system of claim 6, wherein the distance adjustment request is an increase request and adjusting means comprises means for increasing the distances.

8. The system of claim 6, wherein the distance adjustment request is a decrease request and the adjusting means comprises means for decreasing the distances.

9. The system of claim 6, wherein the distance adjustment request includes a distance value and the adjusting means comprises means for adjusting the positions of the objects so that the distance between each pair of adjacent objects is equal to said distance value.

10. The system of claim 6, wherein the adjusting means comprises means for adjusting the positions of the objects so that the distances between pairs of adjacent objects are equal.