Pen-Stroke Sketch Interface for Drawing 2D/3D Figures by Collaborative Multi-Users over the Network for Applications in e-Education
Seoul National University, South Korea
The objective of the proposed research is to develop tablet technology that enables math tutors and students draw 2D/3D figures collaboratively on tablet screens shared over the network using pen-stroke sketches as they would draw these figures on a blackboard or on a paper.
The target application of the system is in drawing 2D/3D figures in e-Education environments which support multi-user multi-directional communications over the network. They focus on the situation where the tutors draw geometric figures that appear in high school mathematics. The students can change the drawn figures interactively using pen-stroke interface that works for geometric objects shared over the network.
In this project, they plan to extend the result of our MSRA opportunistic research of 2006, which developed multi-user interface for manipulating 2D/3D data over network. Figure 1 shows two screen shots of the same geometric models displayed on two different machines that share the same data but from different views over the network.
The motivation of our current work is in changing the input interface and the output quality of mathematical figures common in these scientific/mathematics packages. The command line description of mathematical functions will be replaced by pen-based user interface. The output figures will be generated on a display screen using OpenGL.
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