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.
65 lines
2.9 KiB
C++
65 lines
2.9 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 Yotam Gingold <yotam@yotamgingold.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_SEAM_EDGES_H
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#define IGL_SEAM_EDGES_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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// Finds all UV-space boundaries of a mesh.
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//
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// Inputs:
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// V #V by dim list of positions of the input mesh.
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// TC #TC by 2 list of 2D texture coordinates of the input mesh
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// F #F by 3 list of triange indices into V representing a
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// manifold-with-boundary triangle mesh
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// FTC #F by 3 list of indices into TC for each corner
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// Outputs:
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// seams Edges where the forwards and backwards directions have different
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// texture coordinates, as a #seams-by-4 matrix of indices. Each row is
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// organized as [ forward_face_index, forward_face_vertex_index,
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// backwards_face_index, backwards_face_vertex_index ] such that one side
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// of the seam is the edge:
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// F[ seams( i, 0 ), seams( i, 1 ) ], F[ seams( i, 0 ), (seams( i, 1 ) + 1) % 3 ]
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// and the other side is the edge:
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// F[ seams( i, 2 ), seams( i, 3 ) ], F[ seams( i, 2 ), (seams( i, 3 ) + 1) % 3 ]
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// boundaries Edges with only one incident triangle, as a #boundaries-by-2
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// matrix of indices. Each row is organized as
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// [ face_index, face_vertex_index ]
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// such that the edge is:
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// F[ boundaries( i, 0 ), boundaries( i, 1 ) ], F[ boundaries( i, 0 ), (boundaries( i, 1 ) + 1) % 3 ]
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// foldovers Edges where the two incident triangles fold over each other
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// in UV-space, as a #foldovers-by-4 matrix of indices.
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// Each row is organized as [ forward_face_index, forward_face_vertex_index,
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// backwards_face_index, backwards_face_vertex_index ]
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// such that one side of the foldover is the edge:
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// F[ foldovers( i, 0 ), foldovers( i, 1 ) ], F[ foldovers( i, 0 ), (foldovers( i, 1 ) + 1) % 3 ]
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// and the other side is the edge:
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// F[ foldovers( i, 2 ), foldovers( i, 3 ) ], F[ foldovers( i, 2 ), (foldovers( i, 3 ) + 1) % 3 ]
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template <
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typename DerivedV,
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typename DerivedTC,
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typename DerivedF,
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typename DerivedFTC,
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typename Derivedseams,
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typename Derivedboundaries,
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typename Derivedfoldovers>
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IGL_INLINE void seam_edges(
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const Eigen::PlainObjectBase<DerivedV>& V,
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const Eigen::PlainObjectBase<DerivedTC>& TC,
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const Eigen::PlainObjectBase<DerivedF>& F,
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const Eigen::PlainObjectBase<DerivedFTC>& FTC,
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Eigen::PlainObjectBase<Derivedseams>& seams,
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Eigen::PlainObjectBase<Derivedboundaries>& boundaries,
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Eigen::PlainObjectBase<Derivedfoldovers>& foldovers);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "seam_edges.cpp"
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#endif
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#endif
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