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Improved comments with notes on what version of the intersection plane mesh should be used

This commit is contained in:
Paolo Cignoni 2012-11-26 09:18:04 +00:00
parent 9a47f8db4c
commit 049fae96c0
1 changed files with 8 additions and 10 deletions
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18
vcg/complex/algorithms/intersection.h
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@ -94,13 +94,13 @@ bool IntersectionPlaneGrid( GridType & grid, Plane3<ScalarType> plane, std::vect
/** \addtogroup complex */ /** \addtogroup complex */
/*@{*/ /*@{*/
/** /** \brief Compute the intersection between a trimesh and a plane building an edge mesh.
Basic Function computing the intersection between a trimesh and a plane. It returns an EdgeMesh without needing anything else. *
Basic Function Computing the intersection between a trimesh and a plane. It returns an EdgeMesh without needing anything else.
Note: This version always returns a segment for each triangle of the mesh which intersects with the plane. In other Note: This version always returns a segment for each triangle of the mesh which intersects with the plane. In other
words there are 2*n vertices where n is the number of segments fo the mesh. You can run vcg::edge:Unify to unify words there are 2*n vertices where n is the number of segments fo the mesh. You can run vcg::edge:Unify to unify
the vertices closer that a given value epsilon. Note that, due to subtraction error during triangle plane intersection, the vertices closer that a given value epsilon. Note that, due to subtraction error during triangle plane intersection,
it is not safe to put epsilon to 0. it is not safe to put epsilon to 0.
// TODO si dovrebbe considerare la topologia face-face della trimesh per derivare quella della edge mesh..
*/ */
template < typename TriMeshType, typename EdgeMeshType, class ScalarType > template < typename TriMeshType, typename EdgeMeshType, class ScalarType >
bool IntersectionPlaneMesh(TriMeshType & m, bool IntersectionPlaneMesh(TriMeshType & m,
@ -131,13 +131,11 @@ bool IntersectionPlaneMesh(TriMeshType & m,
/** \addtogroup complex */ /** \addtogroup complex */
/*@{*/ /*@{*/
/** /** \brief More stable version of the IntersectionPlaneMesh function
Basic Function computing the intersection between a trimesh and a plane. It returns an EdgeMesh without needing anything else. *
Note: This version always returns a segment for each triangle of the mesh which intersects with the plane. In other * This version of the make a first pass storing the distance to the plane
words there are 2*n vertices where n is the number of segments fo the mesh. You can run vcg::edge:Unify to unify * into vertex quality and then use this value to compute in a safe way the
the vertices closer that a given value epsilon. Note that, due to subtraction error during triangle plane intersection, * intersection.
it is not safe to put epsilon to 0.
// TODO si dovrebbe considerare la topologia face-face della trimesh per derivare quella della edge mesh..
*/ */
template < typename TriMeshType, typename EdgeMeshType, class ScalarType > template < typename TriMeshType, typename EdgeMeshType, class ScalarType >
bool IntersectionPlaneMeshQuality(TriMeshType & m, bool IntersectionPlaneMeshQuality(TriMeshType & m,