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#ifndef _RHEOLEF_LEVEL_SET_H
#define _RHEOLEF_LEVEL_SET_H
//
// This file is part of Rheolef.
//
// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
//
// Rheolef is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Rheolef is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Rheolef; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// =========================================================================
namespace rheolef {
/**
@functionfile level_set zero level set of a field
Synopsis
========
geo level_set (const field& fh);
geo level_set (const field& fh, const level_set_option& lopt);
Description
===========
Given a @ref field_2 `fh` defined in a domain `Lambda`,
this function computes the level set defined by `{x in Lambda, fh(x) = 0}`.
This level set is represented by the @ref geo_2 class.
Options
=======
The option class `leve_set_option`
controls the slit of quadrilaterals into triangles
for tridimensional intersected surface and also the
zero machine precision, `epsilon`.
@snippet level_set.h verbatim_level_set_option
Implementation
==============
@showfromfile
*/
} // namespace rheolef
#include "rheolef/geo.h"
namespace rheolef {
// forward declaration:
template <class T, class M> class field_basic;
// [verbatim_level_set_option]
struct level_set_option {
bool split_to_triangle;
Float epsilon;
level_set_option()
: split_to_triangle(true),
epsilon(100*std::numeric_limits<Float>::epsilon())
{}
};
// [verbatim_level_set_option]
template <class T, class M>
geo_basic<T,M> level_set (
const field_basic<T,M>& fh,
const level_set_option& opt = level_set_option());
// backward compat:
using level_set_option_type = level_set_option;
} // namespace
#endif // _RHEOLEF_LEVEL_SET_H
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