Alpha Software for Isotopic Reconstruction of Surfaces with Boundaries

Tamal K DeyKuiyu Li,   Edgar A. RamosRephael Wenger

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Alpha software can isotopically reconstruct a surface with boundaries (including a non-orientable one) from its sample points. The input is the co-ordinates of the point cloud in 3D and the output is a piecewise linear approximation of the surface which is made of Delaunay triangles with vertices in the input points only. The software works on the assumption that the sample is sufficiently dense and is obtained from a smooth surface. The algorithm of the software peels slivers greedily from an Alpha-complex of the sample of the surface. No other post-processing is necessary. For detailed definitions, please see the paper and also see the image gallery:

T. K. Dey, K. Li., E. A. Ramos, and R. Wenger. Isotopic Reconstruction of Surfaces with Boundaries. Proc. Sympos. Geom. Processing 2009 (SGP09), special issue of Computer Graphics Forum, Vol. 28, No. 5 (2009), 1371--1382.

Codes are  available for  Linux,  and Windows. Please send an email to tamaldey@cse.ohio-state.edu to get the password to access the download area.
 

 Image Gallery.  Download area.

 Other papers

Other Software : HanTun, DelPsc, Qualmesh, SurfRemesh, Cocone, AMLS, NormFet, Segmatch


The output of the Alpha software can be viewed with GEOMVIEW

Disclaimer: We do not intend to be responsible for the maintenance of the software.

Copyright: Jyamiti group at the Ohio State University. No commercial use of the software is permitted without proper license.