//-*-C++-*- /* ************************************************************************** description -------------------- copyright : (C) 2000-2001 by Andreas Zehender email : zehender@kde.org ************************************************************************** ************************************************************************** * * * 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 PMPOINT_H #define PMPOINT_H #include "GL/gl.h" #include class PMVector; class PMMatrix; /** * Class for 3d points. * * Used in @ref PMViewStructure. * * Optimized for rendering with opengl */ class PMPoint { public: /** * Creates a point with coordinates [0,0,0] */ PMPoint( ); /** * Creates a point with coordinates [x,y,z] */ PMPoint( GLdouble x, GLdouble y, GLdouble z ); /** * Creates a point from a vector. The size of the vector has to be 3 */ PMPoint( const PMVector& v ); /** * Copy constructor */ PMPoint( const PMPoint& p ); /** * Returns a reference to a coordinate, 0:x, 1:y, 2:z */ GLdouble& operator[] ( int index ) { return m_coord[index];} /** * Returns a reference to a coordinate, 0:x, 1:y, 2:z */ const GLdouble& operator[] ( int index ) const { return m_coord[index];} /** * Returns the x coordinate */ GLdouble x( ) const { return m_coord[0]; } /** * Returns the y coordinate */ GLdouble y( ) const { return m_coord[1]; } /** * Returns the z coordinate */ GLdouble z( ) const { return m_coord[2]; } /** * Sets the x coordinate */ void setX( const GLdouble newx ) { m_coord[0] = newx; } /** * Sets the y coordinate */ void setY( const GLdouble newy ) { m_coord[1] = newy; } /** * Sets the z coordinate */ void setZ( const GLdouble newz ) { m_coord[2] = newz; } /** * Transforms the point p with the matrix m * @see transform */ friend PMPoint operator* ( const PMMatrix& m, const PMPoint& p ); /** * Assigns c to the point */ PMPoint& operator= ( const PMPoint& c ); /** * Transforms the point with the matrix m. Same as p = m * p * * size must be 3! */ void transform( const PMMatrix& m ); private: /** * The coords. THIS MEMBER HAS TO BE THE FIRST AND ONLY ONE * (for rendering with OpenGL)! */ GLdouble m_coord[3]; }; /** * @ref TQMemArray of PMPoints */ typedef TQMemArray PMPointArray; #endif