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Merged branch 'dev_native' into lm_sla_supports_auto

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Added igl library files
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Lukas Matena 2018-10-26 15:45:52 +02:00
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2016 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_DECIMATE_H
#define IGL_DECIMATE_H
#include "igl_inline.h"
#include <Eigen/Core>
#include <vector>
#include <set>
namespace igl
{
// Assumes (V,F) is a manifold mesh (possibly with boundary) Collapses edges
// until desired number of faces is achieved. This uses default edge cost and
// merged vertex placement functions {edge length, edge midpoint}.
//
// Inputs:
// V #V by dim list of vertex positions
// F #F by 3 list of face indices into V.
// max_m desired number of output faces
// Outputs:
// U #U by dim list of output vertex posistions (can be same ref as V)
// G #G by 3 list of output face indices into U (can be same ref as G)
// J #G list of indices into F of birth face
// I #U list of indices into V of birth vertices
// Returns true if m was reached (otherwise #G > m)
IGL_INLINE bool decimate(
const Eigen::MatrixXd & V,
const Eigen::MatrixXi & F,
const size_t max_m,
Eigen::MatrixXd & U,
Eigen::MatrixXi & G,
Eigen::VectorXi & J,
Eigen::VectorXi & I);
// Inputs:
// V #V by dim list of vertex positions
// F #F by 3 list of face indices into V.
// max_m desired number of output faces
// Outputs:
// U #U by dim list of output vertex posistions (can be same ref as V)
// G #G by 3 list of output face indices into U (can be same ref as G)
// J #G list of indices into F of birth face
// Returns true if m was reached (otherwise #G > m)
IGL_INLINE bool decimate(
const Eigen::MatrixXd & V,
const Eigen::MatrixXi & F,
const size_t max_m,
Eigen::MatrixXd & U,
Eigen::MatrixXi & G,
Eigen::VectorXi & J);
// Assumes a **closed** manifold mesh. See igl::connect_boundary_to_infinity
// and igl::decimate in decimate.cpp
// is handling meshes with boundary by connecting all boundary edges with
// dummy facets to infinity **and** modifying the stopping criteria.
//
// Inputs:
// cost_and_placement function computing cost of collapsing an edge and 3d
// position where it should be placed:
// cost_and_placement(V,F,E,EMAP,EF,EI,cost,placement);
// stopping_condition function returning whether to stop collapsing edges
// based on current state. Guaranteed to be called after _successfully_
// collapsing edge e removing edges (e,e1,e2) and faces (f1,f2):
// bool should_stop =
// stopping_condition(V,F,E,EMAP,EF,EI,Q,Qit,C,e,e1,e2,f1,f2);
IGL_INLINE bool decimate(
const Eigen::MatrixXd & V,
const Eigen::MatrixXi & F,
const std::function<void(
const int /*e*/,
const Eigen::MatrixXd &/*V*/,
const Eigen::MatrixXi &/*F*/,
const Eigen::MatrixXi &/*E*/,
const Eigen::VectorXi &/*EMAP*/,
const Eigen::MatrixXi &/*EF*/,
const Eigen::MatrixXi &/*EI*/,
double & /*cost*/,
Eigen::RowVectorXd & /*p*/
)> & cost_and_placement,
const std::function<bool(
const Eigen::MatrixXd & ,/*V*/
const Eigen::MatrixXi & ,/*F*/
const Eigen::MatrixXi & ,/*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & ,/*EF*/
const Eigen::MatrixXi & ,/*EI*/
const std::set<std::pair<double,int> > & ,/*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &,/*Qit*/
const Eigen::MatrixXd & ,/*C*/
const int ,/*e*/
const int ,/*e1*/
const int ,/*e2*/
const int ,/*f1*/
const int /*f2*/
)> & stopping_condition,
Eigen::MatrixXd & U,
Eigen::MatrixXi & G,
Eigen::VectorXi & J,
Eigen::VectorXi & I);
// Inputs:
// pre_collapse callback called with index of edge whose collapse is about
// to be attempted (see collapse_edge)
// post_collapse callback called with index of edge whose collapse was
// just attempted and a flag revealing whether this was successful (see
// collapse_edge)
IGL_INLINE bool decimate(
const Eigen::MatrixXd & V,
const Eigen::MatrixXi & F,
const std::function<void(
const int /*e*/,
const Eigen::MatrixXd &/*V*/,
const Eigen::MatrixXi &/*F*/,
const Eigen::MatrixXi &/*E*/,
const Eigen::VectorXi &/*EMAP*/,
const Eigen::MatrixXi &/*EF*/,
const Eigen::MatrixXi &/*EI*/,
double & /*cost*/,
Eigen::RowVectorXd & /*p*/
)> & cost_and_placement,
const std::function<bool(
const Eigen::MatrixXd & ,/*V*/
const Eigen::MatrixXi & ,/*F*/
const Eigen::MatrixXi & ,/*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & ,/*EF*/
const Eigen::MatrixXi & ,/*EI*/
const std::set<std::pair<double,int> > & ,/*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &,/*Qit*/
const Eigen::MatrixXd & ,/*C*/
const int ,/*e*/
const int ,/*e1*/
const int ,/*e2*/
const int ,/*f1*/
const int /*f2*/
)> & stopping_condition,
const std::function<bool(
const Eigen::MatrixXd & ,/*V*/
const Eigen::MatrixXi & ,/*F*/
const Eigen::MatrixXi & ,/*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & ,/*EF*/
const Eigen::MatrixXi & ,/*EI*/
const std::set<std::pair<double,int> > & ,/*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &,/*Qit*/
const Eigen::MatrixXd & ,/*C*/
const int /*e*/
)> & pre_collapse,
const std::function<void(
const Eigen::MatrixXd & , /*V*/
const Eigen::MatrixXi & , /*F*/
const Eigen::MatrixXi & , /*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & , /*EF*/
const Eigen::MatrixXi & , /*EI*/
const std::set<std::pair<double,int> > & , /*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &, /*Qit*/
const Eigen::MatrixXd & , /*C*/
const int , /*e*/
const int , /*e1*/
const int , /*e2*/
const int , /*f1*/
const int , /*f2*/
const bool /*collapsed*/
)> & post_collapse,
Eigen::MatrixXd & U,
Eigen::MatrixXi & G,
Eigen::VectorXi & J,
Eigen::VectorXi & I);
// Inputs:
// EMAP #F*3 list of indices into E, mapping each directed edge to unique
// unique edge in E
// EF #E by 2 list of edge flaps, EF(e,0)=f means e=(i-->j) is the edge of
// F(f,:) opposite the vth corner, where EI(e,0)=v. Similarly EF(e,1) "
// e=(j->i)
// EI #E by 2 list of edge flap corners (see above).
IGL_INLINE bool decimate(
const Eigen::MatrixXd & V,
const Eigen::MatrixXi & F,
const std::function<void(
const int /*e*/,
const Eigen::MatrixXd &/*V*/,
const Eigen::MatrixXi &/*F*/,
const Eigen::MatrixXi &/*E*/,
const Eigen::VectorXi &/*EMAP*/,
const Eigen::MatrixXi &/*EF*/,
const Eigen::MatrixXi &/*EI*/,
double & /*cost*/,
Eigen::RowVectorXd & /*p*/
)> & cost_and_placement,
const std::function<bool(
const Eigen::MatrixXd & ,/*V*/
const Eigen::MatrixXi & ,/*F*/
const Eigen::MatrixXi & ,/*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & ,/*EF*/
const Eigen::MatrixXi & ,/*EI*/
const std::set<std::pair<double,int> > & ,/*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &,/*Qit*/
const Eigen::MatrixXd & ,/*C*/
const int ,/*e*/
const int ,/*e1*/
const int ,/*e2*/
const int ,/*f1*/
const int /*f2*/
)> & stopping_condition,
const std::function<bool(
const Eigen::MatrixXd & ,/*V*/
const Eigen::MatrixXi & ,/*F*/
const Eigen::MatrixXi & ,/*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & ,/*EF*/
const Eigen::MatrixXi & ,/*EI*/
const std::set<std::pair<double,int> > & ,/*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &,/*Qit*/
const Eigen::MatrixXd & ,/*C*/
const int /*e*/
)> & pre_collapse,
const std::function<void(
const Eigen::MatrixXd & , /*V*/
const Eigen::MatrixXi & , /*F*/
const Eigen::MatrixXi & , /*E*/
const Eigen::VectorXi & ,/*EMAP*/
const Eigen::MatrixXi & , /*EF*/
const Eigen::MatrixXi & , /*EI*/
const std::set<std::pair<double,int> > & , /*Q*/
const std::vector<std::set<std::pair<double,int> >::iterator > &, /*Qit*/
const Eigen::MatrixXd & , /*C*/
const int , /*e*/
const int , /*e1*/
const int , /*e2*/
const int , /*f1*/
const int , /*f2*/
const bool /*collapsed*/
)> & post_collapse,
const Eigen::MatrixXi & E,
const Eigen::VectorXi & EMAP,
const Eigen::MatrixXi & EF,
const Eigen::MatrixXi & EI,
Eigen::MatrixXd & U,
Eigen::MatrixXi & G,
Eigen::VectorXi & J,
Eigen::VectorXi & I);
}
#ifndef IGL_STATIC_LIBRARY
# include "decimate.cpp"
#endif
#endif