clipper::Symop_code Class Reference

Compressed encoded symmetry operator. More...

#include <symop.h>

List of all members.

Public Member Functions
	Symop_code ()
	null constructor
	Symop_code (const int &code)
	constructor: from int
	Symop_code (const Symop &op)
	constructor: from Symop
	Symop_code (const Isymop &op)
	constructor: from Isymop
void	init (const Isymop &op)
	initialiser: from Isymop
Symop_code	code_rot () const
	return code for rotation part
Symop_code	code_trn () const
	return code for translation part
Symop	symop () const
	convert to symop
Isymop	isymop () const
	convert to integerised symop
	operator int () const
	convert to integer
Static Public Member Functions
static Symop_code	identity ()
	identity code

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Detailed Description

Compressed encoded symmetry operator.

This is a compresses representation of a crystallographic symmetry operator, stored as a single 32-bit integer. It may be converted to or from a symop or an int and compared, sorted, etc. The following guarantees are made concerning the code:

• The identity operator has a code of zero.
• Operators with non-identity rotations will have higher codes than operators with identity rotations, for the same translation.
• Operators with non-zero translations will have higher codes than operators with zero translations, for the same rotation.

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Member Function Documentation

Symop clipper::Symop_code::symop

(

)

const

convert to symop

Construct a symmetry operator and initialise it to the matrix encoded in the given int.

Parameters:

code	The integer code.

References isymop(), clipper::RTop< T >::rot(), and clipper::RTop< T >::trn().

Isymop clipper::Symop_code::isymop

(

)

const

convert to integerised symop

Construct an integerised symmetry operator and initialise it to the matrix encoded in the given int, with a grid (base) of (24,24,24).

Parameters:

code	The integer code.

References code_rot(), code_trn(), clipper::Util::mod(), clipper::RTop< T >::rot(), and clipper::RTop< T >::trn().

Referenced by symop().

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The documentation for this class was generated from the following files:

• symop.h
• symop.cpp