Virtual Reality Learning System for Digital Terrain Model Surveying Practice
Publication: Journal of Professional Issues in Engineering Education and Practice
Volume 134, Issue 4
Abstract
This research builds a virtual reality learning system for the digital terrain model surveying practice based on the triangular irregular network (TIN). The proposed system offers students an interactive, individual, three-dimensional, measurable, immediate feedback learning process. The system operating procedure is divided into five operations: (1) selecting topographical control points; (2) TIN editing; (3) evaluating errors; (4) analyzing errors; and (5) demonstrating performance. Students are able to carry out selecting the topographical control points and editing TIN under the virtual reality environment as if they implemented these surveying operations in the field. In addition, the magnitude and distribution of elevation errors can be recognized immediately after these operations are completed. Therefore, students have immediate feedback. After using the system in real practice courses, significant effects were found between the experimental set and contrast set.
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Acknowledgments
This work was supported by the National Science Council of Taiwan, R.O.C. under Grant No. NSCTNSC-92-2211-E-216-015.
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© 2008 ASCE.
History
Received: Nov 28, 2006
Accepted: Nov 1, 2007
Published online: Oct 1, 2008
Published in print: Oct 2008
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