78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_BBW_H
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#define IGL_BBW_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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#include <igl/active_set.h>
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namespace igl
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{
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// Container for BBW computation related data and flags
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class BBWData
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{
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public:
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// Enforce partition of unity during optimization (optimize all weight
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// simultaneously)
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bool partition_unity;
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// Initial guess
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Eigen::MatrixXd W0;
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igl::active_set_params active_set_params;
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// Verbosity level
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// 0: quiet
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// 1: loud
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// 2: louder
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int verbosity;
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public:
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IGL_INLINE BBWData();
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// Print current state of object
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IGL_INLINE void print();
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};
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// Compute Bounded Biharmonic Weights on a given domain (V,Ele) with a given
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// set of boundary conditions
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//
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// Templates
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// DerivedV derived type of eigen matrix for V (e.g. MatrixXd)
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// DerivedF derived type of eigen matrix for F (e.g. MatrixXi)
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// Derivedb derived type of eigen matrix for b (e.g. VectorXi)
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// Derivedbc derived type of eigen matrix for bc (e.g. MatrixXd)
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// DerivedW derived type of eigen matrix for W (e.g. MatrixXd)
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// Inputs:
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// V #V by dim vertex positions
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// Ele #Elements by simplex-size list of element indices
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// b #b boundary indices into V
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// bc #b by #W list of boundary values
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// data object containing options, initial guess --> solution and results
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// Outputs:
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// W #V by #W list of *unnormalized* weights to normalize use
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// igl::normalize_row_sums(W,W);
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// Returns true on success, false on failure
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template <
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typename DerivedV,
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typename DerivedEle,
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typename Derivedb,
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typename Derivedbc,
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typename DerivedW>
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IGL_INLINE bool bbw(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedEle> & Ele,
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const Eigen::PlainObjectBase<Derivedb> & b,
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const Eigen::PlainObjectBase<Derivedbc> & bc,
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BBWData & data,
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Eigen::PlainObjectBase<DerivedW> & W);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "bbw.cpp"
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#endif
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#endif
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