matrix.h File Reference

Include file for matrix operations. More...

#include "MathType.h"
#include "deprecated.h"

Go to the source code of this file.

Macros
#define	_MATRIX_H_DEPRECATED

Functions
void	blMatMult3_33 (VEC3F vecin, REAL matin[3][3], VEC3F *vecout)
void	blMatMult33_33 (REAL a[3][3], REAL b[3][3], REAL out[3][3])
void	blInvert33 (REAL s[3][3], REAL ss[3][3])
void	blCreateRotMat (char direction, REAL angle, REAL matrix[3][3])
REAL	blVecDist (REAL *a, REAL *b, int len)

Detailed Description

Include file for matrix operations.

Version

V1.9

Date

14.08.14

Copyright

(c) UCL / Dr. Andrew C. R. Martin 1995-2014

Author

Dr. Andrew C. R. Martin

Institute of Structural & Molecular Biology, University College London, Gower Street, London. WC1E 6BT.

andre.nosp@m.w@bi.nosp@m.oinf..nosp@m.org..nosp@m.uk andre.nosp@m.w.ma.nosp@m.rtin@.nosp@m.ucl..nosp@m.ac.uk

This code is NOT IN THE PUBLIC DOMAIN, but it may be copied according to the conditions laid out in the accompanying file COPYING.DOC.

The code may be modified as required, but any modifications must be documented so that the person responsible can be identified.

The code may not be sold commercially or included as part of a commercial product except as described in the file COPYING.DOC.

Description:

Usage:

Revision History:

• V1.7 07.07.14 Use bl prefix for functions By: CTP
• V1.8 31.07.14 Updated deprecation: Removed deprecated.h and added prototypes for renamed functions. By: CTP
• V1.9 14.08.14 Moved deprecated function prototypes to deprecated.h By: CTP

Definition in file matrix.h.

Macro Definition Documentation

#define _MATRIX_H_DEPRECATED

Definition at line 87 of file matrix.h.

Function Documentation

void blCreateRotMat	(	char	direction,
		REAL	angle,
		REAL	matrix[3][3]
	)

Parameters

[in]	direction	Axis about which to rotate
[in]	angle	Angle (in rads) to rotate
[out]	matrix	Rotation matrix

Create a 3x3 rotation matrix. Takes a direction as a single character ('x', 'y', or 'z'), an angle (in rads) and outputs a rotation matrix

• 22.07.93 Original By: ACRM
• 07.07.14 Use bl prefix for functions By: CTP

Definition at line 101 of file CreateRotMat.c.

void blInvert33	(	REAL	s[3][3],
		REAL	ss[3][3]
	)

Parameters

[in]	s	Input matrix
[out]	ss	Ouput inverted matrix

Invert a 3x3 matrix

• 06.09.91 Original
• 01.06.92 Documented
• 10.06.93 void return
• 12.09.02 Fixed SERIOUS bug! Was basically rubbish before!
• 07.07.14 Use bl prefix for functions By: CTP

Definition at line 102 of file invert33.c.

void blMatMult33_33	(	REAL	a[3][3],
		REAL	b[3][3],
		REAL	out[3][3]
	)

Parameters

[in]	a	Matrix to be multiplied
[in]	b	Matrix to be multiplied
[out]	out	Output matrix

Multiply two 3x3 matrices

• 27.09.95 Original
• 07.07.14 Use bl prefix for functions By: CTP

Definition at line 99 of file MatMult33_33.c.

void blMatMult3_33	(	VEC3F	vecin,
		REAL	matin[3][3],
		VEC3F *	vecout
	)

Parameters

[in]	vecin	Vector to be multiplied
[in]	matin	Rotation matrix
[out]	*vecout	Output multiplied vector

Multiply a 3-vector by a 3x3 matrix

• 30.09.92 Original
• 03.08.93 Changed multiplication to standard direction
• 07.07.14 Use bl prefix for functions By: CTP

Definition at line 100 of file MatMult3_33.c.

REAL blVecDist	(	REAL *	a,
		REAL *	b,
		int	len
	)

Parameters

[in]	*a	An arbitrary length vector (as an array)
[in]	*b	An arbitrary length vector (as an array)
[in]	len	The dimensionality of the vectors (array length)

Returns

The distance between the points described by the two vectors

Finds the distance between two vectors of arbitrary length

• 28.07.95 Original By: ACRM
• 07.07.14 Use bl prefix for functions By: CTP

Definition at line 98 of file VecDist.c.