The Vec class is a straightforward 3-d vector, which also works in pyroot. More...

#include <Vec.hh>

Inheritance diagram for Vec:

Public Member Functions
	Vec (double x_, double y_, double z_)
	Constructor. More...

	Vec ()
	Default constructor. More...

double	dot (const Vec &v) const
	Get dot product. More...

Vec	cross (const Vec r) const
	Get cross product. More...

Vec &	operator+= (const Vec &v)
	Add vector. More...

Vec &	operator-= (const Vec &v)
	Subtract vector. More...

Vec &	operator*= (double d)
	Multiply vector. More...

Vec &	operator/= (double d)
	Divide vector. More...

Vec	operator- () const
	Negate vector. More...

bool	operator== (const Vec &v) const
	Check equality with given vector. More...

bool	operator!= (const Vec &v) const
	Check in-equality with given vector. More...

Vec &	set (double xx, double yy, double zz)
	Set vector. More...

Vec &	set_angles (double theta, double phi)
	Set vector according given zenith and azimuth angles. More...

double	phi () const
	Get azimuth angle. More...

double	theta () const
	Get zenith angle. More...

double	len () const
	Get length. More...

double	lenxy () const
	Get length of (x,y) component. More...

Vec &	normalize ()
	Normalise this vector. More...

void	print (std::ostream &out=std::cout) const
	Print vector. More...

const char *	__repr__ () const
	Get string representation of this vector. More...

Vec	__add__ (const Vec &v) const
	Add vector. More...

Vec	__sub__ (const Vec &v) const
	Subtract vector. More...

Vec	__mul__ (double d) const
	Multiply vector. More...

Vec	__rmul__ (double d) const
	Multiply vector. More...

Vec	__div__ (double d) const
	Divide vector. More...

Vec &	rotate_z (double ang)
	Rotate around z-axis with given angle. More...

Vec &	rotate_x (double ang)
	Rotate around x-axis with given angle. More...

Vec &	rotate_y (double ang)
	Rotate around y-axis with given angle. More...

Public Attributes
double	x

double	y

double	z

Detailed Description

The Vec class is a straightforward 3-d vector, which also works in pyroot.

Definition at line 12 of file Vec.hh.

Constructor & Destructor Documentation

◆ Vec() [1/2]

Vec::Vec	(	double	x_,
		double	y_,
		double	z_
	)

inline

Constructor.

Parameters

x_	x position
y_	y position
z_	z position

Definition at line 23 of file Vec.hh.

23 : x(x_), y(y_), z(z_) {}

Vec::z

double z

Definition: Vec.hh:14

Vec::x

double x

Definition: Vec.hh:14

Vec::y

double y

Definition: Vec.hh:14

◆ Vec() [2/2]

Vec::Vec ( )

inline

Default constructor.

Definition at line 28 of file Vec.hh.

28 :x(0),y(0),z(0) {}

Member Function Documentation

◆ dot()

double Vec::dot ( const Vec & v ) const

inline

Get dot product.

Parameters

v vector

Returns: dot product

Definition at line 36 of file Vec.hh.

36 { return v.x*x + v.y*y+ v.z*z;}

JTOOLS::v

data_type v[N+1][M+1]

Definition: JPolint.hh:866

◆ cross()

Vec Vec::cross ( const Vec r ) const

inline

Get cross product.

Parameters

r vector

Returns: cross product

Definition at line 44 of file Vec.hh.

44 { return Vec ( y*r.z-z*r.y, z*r.x-x*r.z, x*r.y-y*r.x);}

JTOOLS::r

data_type r[M+1]

Definition: JPolint.hh:868

Vec::Vec

Vec()

Default constructor.

Definition: Vec.hh:28

◆ operator+=()

Vec& Vec::operator+= ( const Vec & v )

inline

Add vector.

Parameters

v vector

Returns: this vector

Definition at line 52 of file Vec.hh.

52 { x+=v.x; y+=v.y; z+=v.z; return *this;}

◆ operator-=()

Vec& Vec::operator-= ( const Vec & v )

inline

Subtract vector.

Parameters

v vector

Returns: this vector

Definition at line 60 of file Vec.hh.

60 { x-=v.x; y-=v.y; z-=v.z; return *this;}

◆ operator*=()

Vec& Vec::operator*= ( double d )

inline

Multiply vector.

Parameters

d factor

Returns: this vector

Definition at line 68 of file Vec.hh.

68 { x*=d; y*=d; z*=d; return *this;}

◆ operator/=()

Vec& Vec::operator/= ( double d )

inline

Divide vector.

Parameters

d factor

Returns: this vector

Definition at line 76 of file Vec.hh.

76 { return operator*=( 1.0 / d ); }

Vec::operator*=

Vec & operator*=(double d)

Multiply vector.

Definition: Vec.hh:68

◆ operator-()

Vec Vec::operator- ( ) const

inline

Negate vector.

Returns: vector

Definition at line 83 of file Vec.hh.

83 { return Vec(-x,-y,-z); }

◆ operator==()

bool Vec::operator== ( const Vec & v ) const

inline

Check equality with given vector.

Parameters

v vector

Returns: true if (x,y,z) positions of two vectors are equal; else false

Definition at line 91 of file Vec.hh.

91 { return x==v.x && y==v.y && z==v.z ; }

◆ operator!=()

bool Vec::operator!= ( const Vec & v ) const

inline

Check in-equality with given vector.

Parameters

v vector

Returns: true if one of (x,y,z) positions of two vectors are not equal; else false

Definition at line 99 of file Vec.hh.

99 { return x!=v.x || y!=v.y || z!=v.z ; }

◆ set()

Vec& Vec::set	(	double	xx,
		double	yy,
		double	zz
	)

inline

Set vector.

Parameters

xx	x position
yy	y position
zz	z position

Returns: this vector

Definition at line 109 of file Vec.hh.

109 { x=xx; y=yy; z=zz; return *this;}

◆ set_angles()

Vec& Vec::set_angles	(	double	theta,
		double	phi
	)

inline

Set vector according given zenith and azimuth angles.

Parameters

theta	zenith angle [rad]
phi	azimuth angle [rad]

Returns: this vector

Definition at line 118 of file Vec.hh.

   {
     x = sin ( theta ) * cos( phi );
     y = sin ( theta ) * sin( phi );
     z = cos ( theta );
     return *this;
   }

◆ phi()

double Vec::phi ( ) const

inline

Get azimuth angle.

Returns: angle [rad]

Definition at line 131 of file Vec.hh.

131 { return atan2( y,x ); }

◆ theta()

double Vec::theta ( ) const

inline

Get zenith angle.

Returns: angle [rad]

Definition at line 138 of file Vec.hh.

138 { return acos(z); }

◆ len()

double Vec::len ( ) const

inline

Get length.

Returns: length

Definition at line 145 of file Vec.hh.

145 { double l = dot(*this); return (l > 0)? sqrt(l) : 0; }

Vec::dot

double dot(const Vec &v) const

Get dot product.

Definition: Vec.hh:36

◆ lenxy()

double Vec::lenxy ( ) const

inline

Get length of (x,y) component.

Returns: length

Definition at line 152 of file Vec.hh.

152 { const double r2 = x*x + y*y; return (r2>0) ? sqrt(r2) :0; }

◆ normalize()

Vec& Vec::normalize ( )

inline

Normalise this vector.

Returns: this vector

Definition at line 159 of file Vec.hh.

159 { return operator/=( len() ); }

Vec::len

double len() const

Get length.

Definition: Vec.hh:145

Vec::operator/=

Vec & operator/=(double d)

Divide vector.

Definition: Vec.hh:76

◆ print()

void Vec::print ( std::ostream & out = std::cout ) const

inline

Print vector.

Parameters

out	output stream

Definition at line 166 of file Vec.hh.

   {
         out << "Vec:" << x << " " << y << " " << z;
   }

◆ repr()

const char* Vec::__repr__ ( ) const

inline

Get string representation of this vector.

Returns: string

Definition at line 176 of file Vec.hh.

   {
     static std::string buffer;
  
     std::ostringstream s; 
   
     print(s);
  
     buffer = s.str();
  
     return buffer.c_str();
   }

◆ add()

Vec Vec::__add__ ( const Vec & v ) const

inline

Add vector.

Parameters

v vector

Returns: vector

Definition at line 195 of file Vec.hh.

195 { Vec r=*this; return r+=v; }

Vec

The Vec class is a straightforward 3-d vector, which also works in pyroot.

Definition: Vec.hh:13

◆ sub()

Vec Vec::__sub__ ( const Vec & v ) const

inline

Subtract vector.

Parameters

v vector

Returns: vector

Definition at line 203 of file Vec.hh.

203 { Vec r=*this; return r-=v; }

◆ mul()

Vec Vec::__mul__ ( double d ) const

inline

Multiply vector.

Parameters

d factor

Returns: vector

Definition at line 211 of file Vec.hh.

211 { Vec r=*this; return r*=d; }

◆ rmul()

Vec Vec::__rmul__ ( double d ) const

inline

Multiply vector.

Parameters

d factor

Returns: vector

Definition at line 219 of file Vec.hh.

219 { return __mul__(d); }

Vec::__mul__

Vec __mul__(double d) const

Multiply vector.

Definition: Vec.hh:211

◆ div()

Vec Vec::__div__ ( double d ) const

inline

Divide vector.

Parameters

d factor

Returns: vector

Definition at line 227 of file Vec.hh.

227 { Vec r=*this; return r/=d; }

◆ rotate_z()

Vec& Vec::rotate_z ( double ang )

inline

Rotate around z-axis with given angle.

Parameters

ang	angle [rad]

Returns: this vector

Definition at line 235 of file Vec.hh.

   {
     const Vec o = *this; 
     x = o.x *cos(ang) - o.y * sin(ang);
     y = o.x *sin(ang) + o.y * cos(ang);
     z = o.z;
     return *this;
   }

◆ rotate_x()

Vec& Vec::rotate_x ( double ang )

inline

Rotate around x-axis with given angle.

Parameters

ang	angle [rad]

Returns: this vector

Definition at line 250 of file Vec.hh.

   {
     const Vec o = *this;
     x = o.x;
     y = o.y *cos(ang) + o.z * -sin(ang);
     z = o.y *sin(ang) + o.z * cos(ang);
     return *this;
   }

◆ rotate_y()

Vec& Vec::rotate_y ( double ang )

inline

Rotate around y-axis with given angle.

Parameters

ang	angle [rad]

Returns: this vector

Definition at line 265 of file Vec.hh.

   {
     const Vec o = *this;
     x = o.x *cos(ang) + o.z * sin(ang);
     y = o.y;
     z = -o.x *sin(ang) + o.z * cos(ang);
     return *this;
   }

Member Data Documentation

◆ x

double Vec::x

Definition at line 14 of file Vec.hh.

◆ y

double Vec::y

Definition at line 14 of file Vec.hh.

◆ z

double Vec::z

Definition at line 14 of file Vec.hh.

The documentation for this struct was generated from the following file:

Vec.hh

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Vec() [1/2]

◆ Vec() [2/2]

Member Function Documentation

◆ dot()

◆ cross()

◆ operator+=()

◆ operator-=()

◆ operator*=()

◆ operator/=()

◆ operator-()

◆ operator==()

◆ operator!=()

◆ set()

◆ set_angles()

◆ phi()

◆ theta()

◆ len()

◆ lenxy()

◆ normalize()

◆ print()

◆ __repr__()

◆ __add__()

◆ __sub__()

◆ __mul__()

◆ __rmul__()

◆ __div__()

◆ rotate_z()

◆ rotate_x()

◆ rotate_y()

Member Data Documentation

◆ x

◆ y

◆ z

◆ repr()

◆ add()

◆ sub()

◆ mul()

◆ rmul()

◆ div()