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Fixed typo: recommended knn is 18 in code

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Laurent Saboret 2009-07-28 08:37:44 +00:00
parent 4b8de7a701
commit 3a2350c7bd
1 changed files with 1 additions and 1 deletions
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Point_set_processing_3/doc_tex/Point_set_processing_3_ref/pca_estimate_normals.tex
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@ -22,7 +22,7 @@
\ccc{CGAL::pca_estimate_normals()} estimates normal directions at all points of an input point set by linear least squares fitting of a plane over their $k$ nearest neighbors. The result is an unoriented normal for each input point.
The output of the normal estimation algorithm highly depends on the \ccc{k} parameter.
The number of neighbors controls the size of the point subset considered for plane fitting at each input point. As this parameter is application-specific we do not provide any default value. For noise-free point sets this value can be set to a small number, e.g., 15. Larger values (e.g., 30 or more) lead to smoother normal fields and are more time consuming. We thus recommend using them only for noisy data sets.
The number of neighbors controls the size of the point subset considered for plane fitting at each input point. As this parameter is application-specific we do not provide any default value. For noise-free point sets this value can be set to a small number, e.g., 18. Larger values (e.g., 30 or more) lead to smoother normal fields and are more time consuming. We thus recommend using them only for noisy data sets.
\ccInclude{CGAL/pca_estimate_normals.h}