61 lines
2.0 KiB
C++
61 lines
2.0 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_FIT_ROTATIONS_H
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#define IGL_FIT_ROTATIONS_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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// Known issues: This seems to be implemented in Eigen/Geometry:
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// Eigen::umeyama
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//
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// FIT_ROTATIONS Given an input mesh and new positions find rotations for
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// every covariance matrix in a stack of covariance matrices
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//
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// Inputs:
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// S nr*dim by dim stack of covariance matrices
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// single_precision whether to use single precision (faster)
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// Outputs:
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// R dim by dim * nr list of rotations
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//
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template <typename DerivedS, typename DerivedD>
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IGL_INLINE void fit_rotations(
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const Eigen::PlainObjectBase<DerivedS> & S,
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const bool single_precision,
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Eigen::PlainObjectBase<DerivedD> & R);
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// FIT_ROTATIONS Given an input mesh and new positions find 2D rotations for
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// every vertex that best maps its one ring to the new one ring
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//
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// Inputs:
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// S nr*dim by dim stack of covariance matrices, third column and every
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// third row will be ignored
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// Outputs:
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// R dim by dim * nr list of rotations, third row and third column of each
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// rotation will just be identity
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//
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template <typename DerivedS, typename DerivedD>
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IGL_INLINE void fit_rotations_planar(
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const Eigen::PlainObjectBase<DerivedS> & S,
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Eigen::PlainObjectBase<DerivedD> & R);
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#ifdef __SSE__
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IGL_INLINE void fit_rotations_SSE( const Eigen::MatrixXf & S, Eigen::MatrixXf & R);
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IGL_INLINE void fit_rotations_SSE( const Eigen::MatrixXd & S, Eigen::MatrixXd & R);
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#endif
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#ifdef __AVX__
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IGL_INLINE void fit_rotations_AVX( const Eigen::MatrixXf & S, Eigen::MatrixXf & R);
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#endif
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "fit_rotations.cpp"
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#endif
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#endif
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