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add calc_edge_midpoint methods for meshes

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This commit is contained in:
Janis Born
2017-01-11 17:27:11 +01:00
parent 3b906e5119
commit 3179316c82
1 changed files with 16 additions and 0 deletions
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16
src/OpenMesh/Core/Mesh/PolyMeshT.hh
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@@ -409,6 +409,22 @@ public:
return edge_vec.sqrnorm(); return edge_vec.sqrnorm();
} }
/** Calculates the midpoint of the halfedge _heh, defined by the positions of
the two incident vertices */
Point calc_edge_midpoint(HalfedgeHandle _heh) const
{
auto vh0 = this->from_vertex_handle(_heh);
auto vh1 = this->to_vertex_handle(_heh);
return 0.5 * (this->point(vh0) + this->point(vh1));
}
/** Calculates the midpoint of the edge _eh, defined by the positions of the
two incident vertices */
Point calc_edge_midpoint(EdgeHandle _eh) const
{
return calc_edge_midpoint(this->halfedge_handle(_eh, 0));
}
/** defines a consistent representation of a sector geometry: /** defines a consistent representation of a sector geometry:
the halfedge _in_heh defines the sector orientation the halfedge _in_heh defines the sector orientation
the vertex pointed by _in_heh defines the sector center the vertex pointed by _in_heh defines the sector center