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Implemented costumizable updating of vertex positions after subdivision.

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git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@525 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Mike Kremer
2012-01-23 14:42:13 +00:00
parent 089697986c
commit 496993d176
1 changed files with 18 additions and 12 deletions
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30
src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh
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@@ -155,17 +155,18 @@ protected:
// Do _n subdivisions // Do _n subdivisions
for (size_t i=0; i < _n; ++i) for (size_t i=0; i < _n; ++i)
{ {
// compute new positions for old vertices
for ( vit = _m.vertices_begin();
vit != _m.vertices_end(); ++vit)
smooth( _m, vit.handle() );
if(_update_points) {
// compute new positions for old vertices
for (vit = _m.vertices_begin(); vit != _m.vertices_end(); ++vit) {
smooth(_m, vit.handle());
}
}
// Compute position for new vertices and store them in the edge property // Compute position for new vertices and store them in the edge property
for (eit=_m.edges_begin(); eit != _m.edges_end(); ++eit) for (eit=_m.edges_begin(); eit != _m.edges_end(); ++eit)
compute_midpoint( _m, eit.handle() ); compute_midpoint( _m, eit.handle() );
// Split each edge at midpoint and store precomputed positions (stored in // Split each edge at midpoint and store precomputed positions (stored in
// edge property ep_pos_) in the vertex property vp_pos_; // edge property ep_pos_) in the vertex property vp_pos_;
@@ -182,10 +183,14 @@ protected:
for (fit = _m.faces_begin(); fit != f_end; ++fit) for (fit = _m.faces_begin(); fit != f_end; ++fit)
split_face(_m, fit.handle() ); split_face(_m, fit.handle() );
// Commit changes in geometry if(_update_points) {
for ( vit = _m.vertices_begin(); // Commit changes in geometry
vit != _m.vertices_end(); ++vit) for ( vit = _m.vertices_begin();
_m.set_point(vit, _m.property( vp_pos_, vit ) ); vit != _m.vertices_end(); ++vit) {
_m.set_point(vit, _m.property( vp_pos_, vit ) );
}
}
#if defined(_DEBUG) || defined(DEBUG) #if defined(_DEBUG) || defined(DEBUG)
// Now we have an consistent mesh! // Now we have an consistent mesh!
@@ -311,10 +316,12 @@ private: // topological modifiers
typename mesh_t::HalfedgeHandle new_heh, opp_new_heh, t_heh; typename mesh_t::HalfedgeHandle new_heh, opp_new_heh, t_heh;
typename mesh_t::VertexHandle vh; typename mesh_t::VertexHandle vh;
typename mesh_t::VertexHandle vh1(_m.to_vertex_handle(heh)); typename mesh_t::VertexHandle vh1(_m.to_vertex_handle(heh));
typename mesh_t::Point zero(0,0,0); typename mesh_t::Point midP(_m.point(_m.to_vertex_handle(heh)));
midP += _m.point(_m.to_vertex_handle(opp_heh));
midP *= 0.5;
// new vertex // new vertex
vh = _m.new_vertex( zero ); vh = _m.new_vertex( midP );
// memorize position, will be set later // memorize position, will be set later
_m.property( vp_pos_, vh ) = _m.property( ep_pos_, _eh ); _m.property( vp_pos_, vh ) = _m.property( ep_pos_, _eh );
@@ -392,7 +399,6 @@ private: // geometry helper
#undef V #undef V
} }
void smooth(mesh_t& _m, const typename mesh_t::VertexHandle& _vh) void smooth(mesh_t& _m, const typename mesh_t::VertexHandle& _vh)
{ {
typename mesh_t::Point pos(0.0,0.0,0.0); typename mesh_t::Point pos(0.0,0.0,0.0);