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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2019 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_QUAD_GRID_H
#define IGL_QUAD_GRID_H
#include <igl/igl_inline.h>
#include <Eigen/Core>
namespace igl
{
// Generate a quad mesh over a regular grid.
//
// Inputs:
// nx number of vertices in the x direction
// ny number of vertices in the y direction
// Outputs:
// V nx*ny by 2 list of vertex positions
// Q (nx-1)*(ny-1) by 4 list of quad indices into V
// E (nx-1)*ny+(ny-1)*nx by 2 list of undirected quad edge indices into V
//
// See also: grid, triangulated_grid
template<
typename DerivedV,
typename DerivedQ,
typename DerivedE>
IGL_INLINE void quad_grid(
const int nx,
const int ny,
Eigen::PlainObjectBase<DerivedV> & V,
Eigen::PlainObjectBase<DerivedQ> & Q,
Eigen::PlainObjectBase<DerivedE> & E);
template<
typename DerivedQ,
typename DerivedE>
IGL_INLINE void quad_grid(
const int nx,
const int ny,
Eigen::PlainObjectBase<DerivedQ> & Q,
Eigen::PlainObjectBase<DerivedE> & E);
}
#ifndef IGL_STATIC_LIBRARY
# include "quad_grid.cpp"
#endif
#endif