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/* ----------------------------------------------------------------------- *
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* This file is part of GEL, http://www.imm.dtu.dk/GEL
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* Copyright (C) the authors and DTU Informatics
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* For license and list of authors, see ../../doc/intro.pdf
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* ----------------------------------------------------------------------- */
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/**
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* @file caps_and_needles.h
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* @brief Simple tools for improving polygonal meshes by removing bad triangles.
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*/
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#ifndef __HMESH_CAPS_AND_NEEDLES_H__
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#ifndef __HMESH_CAPS_AND_NEEDLES_H__
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#define __HMESH_CAPS_AND_NEEDLES_H__
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#define __HMESH_CAPS_AND_NEEDLES_H__
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#include "HMesh/Manifold.h"
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namespace HMesh
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namespace HMesh
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{
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{
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class Manifold;
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/** A cap is a triangle with two very small angles and an angle close
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/** \brief Remove caps from a manifold consisting of only triangles.
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to pi, however a cap does not necessarily have a very short edge.
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A cap is a triangle with two very small angles and an angle close to pi, however a cap does not necessarily have a very short edge.
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Set the ang_thresh to a value close to pi. The closer to pi the
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Set the ang_thresh to a value close to pi. The closer to pi the _less_ sensitive the cap removal.
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A cap is removed by flipping the (long) edge E opposite to the vertex V with the angle close to pi.
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However, the function is more complex. Read code and document more carefully !!! */
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_less_ sensitive the cap removal.
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void remove_caps(Manifold& m, float thresh);
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A cap is removed by flipping the (long) edge E opposite to the vertex
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/** \brief Remove needles from a manifold consisting of only triangles.
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V with the angle close to pi. However, the function is more complex.
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Read code and document more carefully !!!
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*/
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void remove_caps_from_trimesh(HMesh::Manifold& mani, float ang_thresh);
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/** A needle is a triangle with a single very short edge. It is moved
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A needle is a triangle with a single very short edge. It is moved by collapsing the short edge.
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by collapsing the short edge. The thresh parameter sets the length
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The thresh parameter sets the length threshold.
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threshold.
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The position of the vertex which survives the collapse is set to one
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The position of the vertex which survives the collapse is set to one of the two end points.
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of the two end points. Selection is based on what changes the geometry
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Selection is based on what changes the geometry least. */
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least. */
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void remove_needles_from_trimesh(HMesh::Manifold& mani,
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void remove_needles(Manifold& m, float thresh);
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float thresh);
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}
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}
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#endif
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#endif
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