79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 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_PSEUDONORMAL_TEST_H
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#define IGL_PSEUDONORMAL_TEST_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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// Given a mesh (V,F), a query point q, and a point on (V,F) c, determine
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// whether q is inside (V,F) --> s=-1 or outside (V,F) s=1, based on the
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// sign of the dot product between (q-c) and n, where n is the normal _at c_,
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// carefully chosen according to [Bærentzen & Aanæs 2005]
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//
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// Inputs:
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// V #V by 3 list of vertex positions
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// F #F by 3 list of triangle indices
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// FN #F by 3 list of triangle normals
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// VN #V by 3 list of vertex normals (ANGLE WEIGHTING)
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// EN #E by 3 list of edge normals (UNIFORM WEIGHTING)
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// EMAP #F*3 mapping edges in F to E
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// q Query point
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// f index into F to face to which c belongs
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// c Point on (V,F)
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// Outputs:
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// s sign
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// n normal
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedFN,
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typename DerivedVN,
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typename DerivedEN,
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typename DerivedEMAP,
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typename Derivedq,
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typename Derivedc,
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typename Scalar,
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typename Derivedn>
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IGL_INLINE void pseudonormal_test(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedF> & F,
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const Eigen::MatrixBase<DerivedFN> & FN,
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const Eigen::MatrixBase<DerivedVN> & VN,
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const Eigen::MatrixBase<DerivedEN> & EN,
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const Eigen::MatrixBase<DerivedEMAP> & EMAP,
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const Eigen::MatrixBase<Derivedq> & q,
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const int f,
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Eigen::PlainObjectBase<Derivedc> & c,
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Scalar & s,
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Eigen::PlainObjectBase<Derivedn> & n);
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedEN,
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typename DerivedVN,
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typename Derivedq,
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typename Derivedc,
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typename Scalar,
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typename Derivedn>
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IGL_INLINE void pseudonormal_test(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedF> & E,
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const Eigen::MatrixBase<DerivedEN> & EN,
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const Eigen::MatrixBase<DerivedVN> & VN,
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const Eigen::MatrixBase<Derivedq> & q,
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const int e,
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Eigen::PlainObjectBase<Derivedc> & c,
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Scalar & s,
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Eigen::PlainObjectBase<Derivedn> & n);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "pseudonormal_test.cpp"
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#endif
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#endif
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