/**

\addtogroup surface Module surface

\section secSurfacePresentation Overview

The <b>pcl_surface</b> library deals with reconstructing the original

surfaces from 3D scans. Depending on the task at hand, this can be for

example the hull, a mesh representation or a smoothed/resampled surface with

normals.

Smoothing and resampling can be important if the cloud is noisy, or if it is

composed of multiple scans that are not aligned perfectly. The complexity

of the surface estimation can be adjusted, and normals can be estimated in

the same step if needed.

\image html http://www.pointclouds.org/documentation/tutorials/_images/resampling_1.jpg

Meshing is a general way to create a surface out of points, and currently

there are two algorithms provided: a very fast triangulation of the original

points, and a slower meshing that does smoothing and hole filling as well.

\image html http://www.pointclouds.org/assets/images/contents/documentation/surface_meshing.png

Creating a convex or concave hull is useful for example when there is a need

for a simplified surface representation or when boundaries need to be

extracted.

\image html http://www.pointclouds.org/assets/images/contents/documentation/surface_hull.png

Please visit the tutorials on http://www.pointclouds.org for more information.

\section secSurfaceRequirements Requirements

- \ref common "common"

- \ref search "search"

- \ref kdtree "kdtree"

- \ref octree "octree"

*/