CGAL 5.1.2 - Triangulated Surface Mesh Simplification
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The concept GetPlacement
describes the requirements for the policy function object which gets the collapse placement of an edge, that is, the new position of the vertex that remains after a halfedge-collapse operation.
The placement returned is a boost::optional
value (i.e., it can be absent). An absent result indicates that the edge should not be collapsed. This could be the result of a computational limitation (such as an overflow), or can be intentionally returned to prevent the edge from being collapsed.
CGAL::Surface_mesh_simplification::Midpoint_placement<TriangleMesh>
CGAL::Surface_mesh_simplification::LindstromTurk_placement<TriangleMesh>
CGAL::Surface_mesh_simplification::GarlandHeckbert_policies<TriangleMesh, GeomTraits>
CGAL::Surface_mesh_simplification::Bounded_normal_change_placement<Placement>
CGAL::Surface_mesh_simplification::Constrained_placement<Placement>
Public Types | |
typedef CGAL::Surface_mesh_simplification::Edge_profile | Edge_profile |
The class Edge_profile regroups useful information about an edge, such as its incident vertices and faces. | |
Operations | |
boost::optional< Edge_profile::Point > | operator() (const Edge_profile &profile) const |
Computes and returns the placement, that is, the position of the vertex which replaces the collapsing edge (represented by its profile). | |