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qgsvector3d.h
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qgsvector3d.h
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/***************************************************************************
qgsvector3d.h
--------------------------------------
Date : November 2017
Copyright : (C) 2017 by Martin Dobias
Email : wonder dot sk at gmail dot com
***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef QGSVECTOR3D_H
#define QGSVECTOR3D_H
#include "qgis_3d.h"
/**
* \ingroup 3d
* Class for storage of 3D vectors similar to QVector3D, with the difference that it uses double precision
* instead of single precision floating point numbers.
*
* \since QGIS 3.0
*/
class _3D_EXPORT QgsVector3D
{
public:
//! Constructs a null vector
QgsVector3D() = default;
//! Constructs a vector from given coordinates
QgsVector3D( double x, double y, double z )
: mX( x ), mY( y ), mZ( z ) {}
//! Returns true if all three coordinates are zero
bool isNull() const { return mX == 0 && mY == 0 && mZ == 0; }
//! Returns X coordinate
double x() const { return mX; }
//! Returns Y coordinate
double y() const { return mY; }
//! Returns Z coordinate
double z() const { return mZ; }
//! Sets vector coordinates
void set( double x, double y, double z )
{
mX = x;
mY = y;
mZ = z;
}
bool operator==( const QgsVector3D &other ) const
{
return mX == other.mX && mY == other.mY && mZ == other.mZ;
}
bool operator!=( const QgsVector3D &other ) const
{
return !operator==( other );
}
//! Returns sum of two vectors
QgsVector3D operator+( const QgsVector3D &other )
{
return QgsVector3D( mX + other.mX, mY + other.mY, mZ + other.mZ );
}
//! Returns difference of two vectors
QgsVector3D operator-( const QgsVector3D &other )
{
return QgsVector3D( mX - other.mX, mY - other.mY, mZ - other.mZ );
}
private:
double mX = 0, mY = 0, mZ = 0;
};
#endif // QGSVECTOR3D_H