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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
49 lines
2 KiB
C++
49 lines
2 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Michael Rabinovich
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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_FLIP_AVOIDING_LINE_SEARCH_H
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#define IGL_FLIP_AVOIDING_LINE_SEARCH_H
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#include "igl_inline.h"
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#include "PI.h"
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#include <Eigen/Dense>
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namespace igl
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{
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// A bisection line search for a mesh based energy that avoids triangle flips as suggested in
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// "Bijective Parameterization with Free Boundaries" (Smith J. and Schaefer S., 2015).
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//
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// The user specifies an initial vertices position (that has no flips) and target one (that my have flipped triangles).
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// This method first computes the largest step in direction of the destination vertices that does not incur flips,
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// and then minimizes a given energy using this maximal step and a bisection linesearch (see igl::line_search).
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//
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// Supports both triangle and tet meshes.
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//
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// Inputs:
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// F #F by 3/4 list of mesh faces or tets
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// cur_v #V by dim list of variables
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// dst_v #V by dim list of target vertices. This mesh may have flipped triangles
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// energy A function to compute the mesh-based energy (return an energy that is bigger than 0)
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// cur_energy(OPTIONAL) The energy at the given point. Helps save redundant computations.
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// This is optional. If not specified, the function will compute it.
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// Outputs:
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// cur_v #V by dim list of variables at the new location
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// Returns the energy at the new point
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IGL_INLINE double flip_avoiding_line_search(
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const Eigen::MatrixXi F,
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Eigen::MatrixXd& cur_v,
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Eigen::MatrixXd& dst_v,
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std::function<double(Eigen::MatrixXd&)> energy,
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double cur_energy = -1);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "flip_avoiding_line_search.cpp"
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#endif
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#endif
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