کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
459213 696235 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A group Undo/Redo method in 3D collaborative modeling systems with performance evaluation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
A group Undo/Redo method in 3D collaborative modeling systems with performance evaluation
چکیده انگلیسی

Undo/Redo is an indispensable function in 3D collaborative modeling systems where a single mistake conducted by one user is propagated to all participants. Both intention preservation and consistency maintenance should be satisfied when applying group Undo/Redo. Besides, fast local responsiveness and timely group awareness are accepted performance metrics in interactive systems. In this paper, we contribute a novel group Undo/Redo mechanism for 3D collaborative modeling systems to support the “any time, any where” Undo/Redo. Response time will be shortened noticeably with a Model State Stream kept on each collaborative site. In the case of concurrent Undo/Redo, an Undo State Vector is proposed to ensure the Undo/Redo intention preservation and model consistency maintenance. Furthermore, the paper studies the performance of the algorithm including the worst, best and average cases with theoretical analyses. Our experiments show that responsive time is actually depending on a number of factors such as size of the history buffer, execution time for a single modeling operation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Network and Computer Applications - Volume 36, Issue 6, November 2013, Pages 1512–1522
نویسندگان
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