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Date: Tue, 10 Dec 1996 03:25:17 GMTServer: NCSA/1.4.2Content-type: text/html<html><head><TITLE>Multi-Garnet: Integrating Multi-Way Constraints with Garnet</title></head><body><H2>Multi-Garnet: Integrating Multi-Way Constraints with Garnet</H2><p>Authors: Michael Sannella and Alan Borning<p>Published as UW Tech Report 92-07-01.<P><hr><H3>Abstract</H3>Constraints provide a useful mechanism for maintaining relations in userinterface toolkits. Garnet is a widely-used user interface toolkit withconsiderable functionality, based on one-way, required constraints.Multi-Garnet extends Garnet by adding support for multi-way constraints andconstraint hierarchies with both required and preferential constraints.This document contains three chapters describing Multi-Garnet:<P><UL><LI> Chapter 1 presents a high-level overview of Multi-Garnet. To motivatethe development of Multi-Garnet, we examine the Garnet constraint system,present some realistic user interface problems that are difficult to handlein Garnet, and demonstrate how Multi-Garnet addresses these problems. Weprovide details on how Multi-Garnet supports some of the features ofGarnet, including constraints with pointer variables, and inheritance ofconstraints.<P><LI> Chapter 2 contains a reference manual for the current version ofMulti-Garnet (version 2.1). This includes information on compiling andloading Multi-Garnet, as well as documentation for the functions and macrosused to create and manipulate Multi-Garnet constraints. This chapter alsocontains additional details on the implementation of Multi-Garnet.<P><LI> Chapter 3 describes a large Multi-Garnet example: a scatterplotdisplaying a set of points. Multi-Garnet constraints are used to maintainrelationships between the data values, the screen positions of the points,and the positions of the X and Y-axes. Multiple interaction modes allowmanipulating the scatterplot points and axes in different ways.</UL><P><HR><P>Click <!WA0><a href= "ftp://cs.washington.edu/tr/1992/07/UW-CSE-92-07-01.PS.Z">here</a> to get the postscript file.<P>Return to <!WA1><a href="http://www.cs.washington.edu/research/projects/weird/www/index.html">Constraints home page</a>?? 快捷鍵說明
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