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Advisor(s)
Abstract(s)
Underground caves and its specific structures are important for geomorphological studies. In this paper we
present tools to identify and map speleothems by surveying cave chambers interiors. The cave chamber was surveyed using Terrestrial Laser Scanning to acquire point clouds with high level of detail
for 3D model generation. This data with 45 million points is useful for either reconstruction, geomorphological studies
or virtual visits of caves. With this point cloud we generated a 3D-mesh to represent
the surface model of the cave chamber, which is important to study its geomorphological features. A topological structure of the 3D-mesh was also implemented to get an
efficient algorithm to help identifying stalactites. The possibility to publish 3D data on the Web is of particular interest for the geospatial field. For this reason, it
was decided to make the cave model available in the Web by developing a 3D graphical interface where users can navigate and interact with the three-dimensional models
of the cave. For this Web3D framework it was used X3D, WebGL and X3DOM. Such solution does not require any additional plug-ins or components.
Description
Keywords
3d-mesh Cave surveying Meshlab TLS X3D X3DOM
Citation
Silvestre, Ivo; Rodrigues, José I.; Figueiredo, Mauro; Veiga-pires, Cristina. Cave chamber data modeling and 3D Web visualization, Trabalho apresentado em GMAI13: 8th International Conference on Geometric Modeling \& Imaging, In GMAI13: 8th International Conference on Geometric Modeling \& Imaging, London, UK, 2013.