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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// This program 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, or (at your option)
// any later version.
// This program 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 this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// $Id: Cone.cpp,v 1.3 2006/10/01 23:25:58 delpinux Exp $
#include <Cone.hpp>
bool Cone::
__inShape(const TinyVector<3, real_t>& x) const
{
TinyVector<3> c1x = x - __center1;
const real_t alpha = __axisVector * c1x / __height;
if (alpha<0)
return false;
if (alpha>__height)
return false;
const real_t h2 = c1x*c1x - alpha*alpha;
return (h2<std::pow(alpha/__height*__radius2 + (1-alpha/__height)*__radius1, 2));
}
Cone::
Cone(const Vertex& a,
const Vertex& b,
const real_t& r1,
const real_t& r2)
: Shape(cone),
__center1(a),
__center2(b),
__axisVector(b-a),
__height(Norm(__axisVector)),
__radius1(r1),
__radius2(r2)
{
;
}
Cone::
Cone(const Cone& C)
: Shape(C),
__center1(C.__center1),
__center2(C.__center2),
__axisVector(C.__axisVector),
__height(C.__height),
__radius1(C.__radius1),
__radius2(C.__radius2)
{
;
}
std::ostream& Cone::
__put(std::ostream& s) const
{
s << "cone {\n" << __center1 << ',' << __radius1
<< ',' << __center2 << ',' << __radius2 << "\n}\n";
return s;
}
ReferenceCounting<Shape> Cone::
__getCopy() const
{
return new Cone(*this);
}
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