SpatialVector.h

Classes
- SpatialVector -- Spatial Vector class (full description)
Interface
- Public Members
- SpatialVector()
- SpatialVector(float64 x, float64 y, float64 z)
- SpatialVector(float64 ra, float64 dec)
- SpatialVector(const SpatialVector &)
- SpatialVector& operator =(const SpatialVector &)
- void set(const float64 &x, const float64 &y, const float64 &z)
- void set(const float64 &ra, const float64 &dec)
- void get( float64 &x, float64 &y, float64 &z) const
- void get( float64 &ra, float64 &dec)
- float64 length() const
- float64 x() const
- float64 y() const
- float64 z() const
- float64 ra()
- float64 dec()
- void normalize()
- void show() const
- void read(istream &)
- void write(ostream &) const
- int operator ==(const SpatialVector & ) const
- float64 operator *(const SpatialVector & ) const
- SpatialVector operator +(const SpatialVector & ) const
- SpatialVector operator -(const SpatialVector & ) const
- SpatialVector & operator *=(float64)
- SpatialVector & operator *=(int)
- friend SpatialVector operator *(float64, const SpatialVector &)
- friend SpatialVector operator *(int, const SpatialVector &)
- friend SpatialVector operator *(const SpatialVector &, float64)
- friend SpatialVector operator *(const SpatialVector &, int)
- Private Members
- void updateXYZ()
- void updateRaDec()
The SpatialVector is a 3D vector usually living on the surface of
the sphere. The corresponding ra, dec can be obtained if the vector
has unit length. That can be ensured with the normalize() function.
Member Description
constructs (1,0,0), ra=0, dec=0.
SpatialVector(float64 x, float64 y, float64 z)
Constructor from three coordinates, not necessarily normed to 1
Constructor from ra/dec, this is always normed to 1
Copy constructor
SpatialVector& operator =(const SpatialVector &)
Assignment
void set(const float64 &x, const float64 &y, const float64 &z)
Set member function: set values - always normed to 1
void set(const float64 &ra, const float64 &dec)
Set member function: set values - always normed to 1
void get( float64 &x, float64 &y, float64 &z) const
Get x,y,z
void get( float64 &ra, float64 &dec)
Get ra,dec - normalizes x,y,z
float64 length() const
return length of vector
float64 x() const
return x (only as rvalue)
float64 y() const
return y
float64 z() const
return z
float64 ra()
return ra - this norms the vector to 1 if not already done so
float64 dec()
return dec - this norms the vector to 1 if not already done so
Normalize vector length to 1
void show() const
Printf it to stdout
void read(istream &)
Read vector from a stream
void write(ostream &) const
Write vector to a stream
int operator ==(const SpatialVector & ) const
Comparison
float64 operator *(const SpatialVector & ) const
dot product
SpatialVector operator +(const SpatialVector & ) const
addition
SpatialVector operator -(const SpatialVector & ) const
subtraction
SpatialVector & operator *=(float64)
scalar products with int and float
friend SpatialVector operator *(float64, const SpatialVector &)
friend SpatialVector operator *(int, const SpatialVector &)
friend SpatialVector operator *(const SpatialVector &, float64)
friend SpatialVector operator *(const SpatialVector &, int)
©
Copyright
The Johns Hopkins University 1999, All Rights Reserved.
Peter Z. Kunszt,