Abstract
The MEL project is developing an object-based tool for the rapid development of graphical direct manipulation user interfaces. We emphasize interfaces to be used by multiple people from multiple workstations simultaneously. The specific requirements that multi-user interfaces place on the graphics system are discussed, as are the solutions that we have developed. In particular, the MEL graphics system is based on a hierarchical display structure of graphical objects and makes extensive use of constraints to maintain graphical consistency and link together various parts of a complete multi-user graphical program.
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© 1991 EUROGRAPHICS The European Association for Computer Graphics
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Hill, R.D. (1991). A 2-D Graphics System for Multi-User Interactive Graphics Based on Objects and Constraints. In: Blake, E.H., Wisskirchen, P. (eds) Advances in Object-Oriented Graphics I. EurographicSeminars. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76303-8_5
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DOI: https://doi.org/10.1007/978-3-642-76303-8_5
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