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/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "openscad.h"
#include <math.h>
Value& Value::operator = (const Value &v) {
x = v.x;
y = v.y;
z = v.z;
is_vector = v.is_vector;
is_nan = v.is_nan;
return *this;
}
Value Value::operator + (const Value &v) const {
if (is_nan || v.is_nan)
return Value();
if (is_vector && v.is_vector)
return Value(x + v.x, y + v.y, z + v.z);
if (!is_vector && !v.is_vector)
return Value(x + v.x);
return Value();
}
Value Value::operator - (const Value &v) const {
if (is_nan || v.is_nan)
return Value();
if (is_vector && v.is_vector)
return Value(x - v.x, y - v.y, z - v.z);
if (!is_vector && !v.is_vector)
return Value(x - v.x);
return Value();
}
Value Value::operator * (const Value &v) const {
if (is_nan || v.is_nan)
return Value();
if (is_vector && v.is_vector) {
double nx = (y-v.y)*(z-v.z) - (z-v.z)*(y-v.y);
double ny = (z-v.z)*(x-v.x) - (x-v.x)*(z-v.z);
double nz = (x-v.x)*(y-v.y) - (y-v.y)*(x-v.x);
return Value(nx, ny, nz);
}
if (is_vector) {
return Value(x * v.x, y * v.x, z * v.x);
}
if (v.is_vector) {
return Value(x * v.x, x * v.y, x * v.z);
}
return Value(x * v.x);
}
Value Value::operator / (const Value &v) const {
if (is_nan || v.is_nan || is_vector || v.is_vector)
return Value();
return Value(x / v.x);
}
Value Value::operator % (const Value &v) const {
if (is_nan || v.is_nan || is_vector || v.is_vector)
return Value();
return Value(fmod(x, v.x));
}
Value Value::inv() const {
if (is_nan)
return Value();
if (is_vector)
return Value(-x, -y, -z);
return Value(-x);
}
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