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112 lines
2.4 KiB
112 lines
2.4 KiB
// Copyright(C) 1999-2020 National Technology & Engineering Solutions
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// of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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// NTESS, the U.S. Government retains certain rights in this software.
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//
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// See packages/seacas/LICENSE for details
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#include "EJ_vector3d.h"
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#include <cmath>
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//----------------------------------------------------------------------------
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vector3d::vector3d() = default;
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//----------------------------------------------------------------------------
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vector3d::vector3d(double X, double Y, double Z) : x(X), y(Y), z(Z) {}
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//----------------------------------------------------------------------------
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vector3d::vector3d(double location[3]) : x(location[0]), y(location[1]), z(location[2]) {}
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//----------------------------------------------------------------------------
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vector3d::vector3d(const vector3d &from) = default;
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void vector3d::set(double X, double Y, double Z)
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{
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x = X;
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y = Y;
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z = Z;
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}
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void vector3d::set(const double location[3])
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{
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x = location[0];
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y = location[1];
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z = location[2];
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}
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vector3d &vector3d::operator=(const vector3d &from) = default;
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vector3d &vector3d::reverse()
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{
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x = -x;
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y = -y;
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z = -z;
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return *this;
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}
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bool vector3d::operator==(const vector3d &from) const
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{
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return (x == from.x && y == from.y && z == from.z);
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}
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bool vector3d::operator!=(const vector3d &from) const
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{
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return (x != from.x || y != from.y || z != from.z);
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}
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vector3d operator+(const vector3d &lhs, const vector3d &rhs)
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{
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vector3d tmp(lhs);
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return tmp += rhs;
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}
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vector3d operator-(const vector3d &lhs, const vector3d &rhs)
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{
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vector3d tmp(lhs);
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return tmp -= rhs;
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}
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vector3d operator*(const vector3d &lhs, double scalar)
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{
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vector3d tmp(lhs);
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return tmp *= scalar;
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}
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vector3d vector3d::operator-() const
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{
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vector3d tmp(x, y, z);
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return tmp *= -1.0;
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}
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vector3d operator*(double scalar, const vector3d &from)
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{
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vector3d tmp(from);
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return tmp *= scalar;
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}
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vector3d operator/(const vector3d &lhs, double scalar)
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{
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if (scalar != 0.0) {
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vector3d tmp(lhs);
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return tmp /= scalar;
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}
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return vector3d(HUGE_VAL, HUGE_VAL, HUGE_VAL);
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}
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vector3d &vector3d::operator/=(double scalar)
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{
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if (scalar != 0.0) {
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x /= scalar;
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y /= scalar;
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z /= scalar;
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}
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else {
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x = HUGE_VAL;
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y = HUGE_VAL;
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z = HUGE_VAL;
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}
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return *this;
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}
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double vector3d::length() const { return sqrt(x * x + y * y + z * z); }
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