47 lines
1.5 KiB
C++
47 lines
1.5 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 <michaelrabinovich27@gmail.com>
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// Copyright (C) 2017 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_EULER_CHARACTERISTIC_H
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#define IGL_EULER_CHARACTERISTIC_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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#include <Eigen/Sparse>
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#include <vector>
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namespace igl
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{
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// Computes the Euler characteristic of a given mesh (V,F)
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//
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// Inputs:
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// F #F by dim list of mesh faces (must be triangles)
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// Returns An int containing the Euler characteristic
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template <typename DerivedF>
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IGL_INLINE int euler_characteristic(
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const Eigen::MatrixBase<DerivedF> & F);
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// Computes the Euler characteristic of a given mesh (V,F)
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// Templates:
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// Scalar should be a floating point number type
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// Index should be an integer type
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// Inputs:
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// V #V by dim list of mesh vertex positions
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// F #F by dim list of mesh faces (must be triangles)
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// Returns An int containing the Euler characteristic
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template <typename Scalar, typename Index>
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IGL_INLINE int euler_characteristic(
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const Eigen::PlainObjectBase<Scalar> & V,
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const Eigen::PlainObjectBase<Index> & F);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "euler_characteristic.cpp"
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#endif
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#endif
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