A class for easy matrix math.

Always remember: This class might be used a lot and during time-critical operations. Thus, it's optimized for speed, which has the consequence that it cannot be derived from this class.

Source:

../src/cVertex.hh:30

public cVertex ( ) ;

default constructor (initializes to zero)

public cVertex ( GLfloat vx ,
                 GLfloat vy ,
                 GLfloat vz ) ;

constructor accepting a vertex split into it's components

public inline cVertex & operator *= ( const GLfloat s ) ;

operator for scaling by a given value

public inline cVertex & operator += ( const cVertex & v ) ;

operator for adding two cVertex objects

public inline cVertex & operator -= ( const cVertex & v ) ;

operator for subtracting two cVertex objects

public inline cVertex operator * ( const GLfloat s ) const ;

operator for multiplying any cVertex with a scalar

public inline cVertex operator + ( const cVertex & v ) const ;

operator to add two cVertex objects

public inline cVertex operator - ( const cVertex & v ) const ;

operator for subtracting two cVertex objects

public inline GLfloat operator * ( const cVertex & v ) const ;

operator to multiply two cVertex objects (dot product)

Return:

dot product of the two cVertex's

public inline GLfloat & operator [ ] ( const int idx ) ;

operator to retrieve a component of an cVertex by index

public inline operator GLfloat * ( ) ;

converting to GLfloat *

public inline cVertex Assign ( GLfloat vx ,
                               GLfloat vy ,
                               GLfloat vz ) ;

assign a new value to all three components (it's basically superfluous)

public inline cVertex & Normalize ( ) ;

normalize the vertex (make it length 1)

Return:

reference to normalized cVertex

public inline void Translate ( GLfloat tx ,
                               GLfloat ty ,
                               GLfloat tz ) ;

convenience function: translate by given vertex

public inline cVertex & Invert ( ) ;

invert direction of vector by inverting all its components

Return:

reference to inverted cVertex

public inline cVertex CrossProd ( const cVertex & v1 ,
                                  const cVertex & v2 ) const ;

calculate cross product of two given vertices

Return:

cVertex object

public inline cVertex CrossProd ( const cVertex & v ) const ;

calculate cross product (does not change class)

Return:

a cVertex object

public inline void SetZero ( ) ;

set vertex to zero vector

public inline GLfloat GetX ( ) const ;

query current x component of vector

Return:

GLfloat - value of x component

public inline GLfloat GetY ( ) const ;

query current y component of vector

Return:

GLfloat - value of y component

public inline GLfloat GetZ ( ) const ;

query current z component of vector

Return:

GLfloat - value of z component

public inline GLfloat GetLength ( ) const ;

determine length of vertex

Return:

length of vertex