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FloatCoord.h
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FloatCoord.h
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/*
Pharmer: Efficient and Exact 3D Pharmacophore Search
Copyright (C) 2011 David Ryan Koes and the University of Pittsburgh
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
of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*
* FloatCoord
*
* Created on: Aug 2, 2010
* Author: dkoes
*
* A simple coordinate class
*/
#ifndef FLOATCOORD_H_
#define FLOATCOORD_H_
struct FloatCoord
{
float x;
float y;
float z;
FloatCoord(float a, float b, float c) :
x(a), y(b), z(c)
{
}
FloatCoord() :
x(0), y(0), z(0)
{
}
FloatCoord(float *xyz): x(xyz[0]), y(xyz[1]), z(xyz[2])
{
}
FloatCoord& operator+=(const FloatCoord& rhs)
{
x += rhs.x;
y += rhs.y;
z += rhs.z;
return *this;
}
FloatCoord& operator-=(const FloatCoord& rhs)
{
x -= rhs.x;
y -= rhs.y;
z -= rhs.z;
return *this;
}
FloatCoord& operator/=(float r)
{
x /= r;
y /= r;
z /= r;
return *this;
}
bool operator==(const FloatCoord& rhs) const
{
return x == rhs.x && y == rhs.y && z == rhs.z;
}
//square of distance to rhs
double sqrDist(const FloatCoord& rhs) const
{
float d1 = x-rhs.x;
float d2 = y-rhs.y;
float d3 = z-rhs.z;
return d1*d1+d2*d2+d3*d3;
}
};
#endif /* FLOATCOORD_H_ */