62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2014 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_COPYLEFT_MARCHINGCUBES_H
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#define IGL_COPYLEFT_MARCHINGCUBES_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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namespace copyleft
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{
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// marching_cubes( values, points, x_res, y_res, z_res, vertices, faces )
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//
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// performs marching cubes reconstruction on the grid defined by values, and
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// points, and generates vertices and faces
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//
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// Input:
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// values #number_of_grid_points x 1 array -- the scalar values of an
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// implicit function defined on the grid points (<0 in the inside of the
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// surface, 0 on the border, >0 outside)
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// points #number_of_grid_points x 3 array -- 3-D positions of the grid
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// points, ordered in x,y,z order:
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// points[index] = the point at (x,y,z) where :
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// x = (index % (xres -1),
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// y = (index / (xres-1)) %(yres-1),
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// z = index / (xres -1) / (yres -1) ).
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// where x,y,z index x, y, z dimensions
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// i.e. index = x + y*xres + z*xres*yres
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// xres resolutions of the grid in x dimension
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// yres resolutions of the grid in y dimension
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// zres resolutions of the grid in z dimension
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// Output:
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// vertices #V by 3 list of mesh vertex positions
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// faces #F by 3 list of mesh triangle indices
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//
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template <
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typename Derivedvalues,
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typename Derivedpoints,
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typename Derivedvertices,
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typename DerivedF>
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IGL_INLINE void marching_cubes(
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const Eigen::PlainObjectBase<Derivedvalues> &values,
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const Eigen::PlainObjectBase<Derivedpoints> &points,
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const unsigned x_res,
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const unsigned y_res,
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const unsigned z_res,
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Eigen::PlainObjectBase<Derivedvertices> &vertices,
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Eigen::PlainObjectBase<DerivedF> &faces);
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "marching_cubes.cpp"
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#endif
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#endif
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