Matrix4.C File Reference

#include <math.h>
#include <string.h>
#include <stdio.h>
#include "Matrix4.h"

Go to the source code of this file.

Macros
#define	VMD_PI   3.14159265358979323846
#define	VMD_TWOPI   (2.0 * VMD_PI)
#define	DEGTORAD(a)   (a*VMD_PI/180.0)
#define	RADTODEG(a)   (a*180.0/VMD_PI)
#define	MATSWAP(a, b)   {temp=(a);(a)=(b);(b)=temp;}

Functions
void	trans_from_rotate (const double mat3[9], Matrix4 *mat4)
	Transform 3x3 into 4x4 matrix: More...
void	print_Matrix4 (const Matrix4 *mat4)
	Print formatted matrix. More...

Macro Definition Documentation

DEGTORAD

#define DEGTORAD

(

a

)

(a*VMD_PI/180.0)

Definition at line 31 of file Matrix4.C.

Referenced by Matrix4::rot().

MATSWAP

#define MATSWAP	(		a,
			b
	)		{temp=(a);(a)=(b);(b)=temp;}

Definition at line 109 of file Matrix4.C.

Referenced by Matrix4::inverse().

RADTODEG

#define RADTODEG

(

a

)

(a*180.0/VMD_PI)

Definition at line 32 of file Matrix4.C.

Referenced by Matrix4::rotate_axis(), Matrix4::transvec(), and Matrix4::transvecinv().

VMD_PI

#define VMD_PI   3.14159265358979323846

Definition at line 29 of file Matrix4.C.

VMD_TWOPI

#define VMD_TWOPI   (2.0 * VMD_PI)

Definition at line 30 of file Matrix4.C.

Function Documentation

print_Matrix4()

void print_Matrix4

(

const Matrix4 *

mat4

)

Print formatted matrix.

Definition at line 379 of file Matrix4.C.

References Matrix4::mat.

                                        {
  int i, j;
  for (i=0; i<4; i++) {
    for (j=0; j<4; j++) {
      printf("%f ", mat4->mat[4*j+i]);
    }
    printf("\n");
  }
  printf("\n");
}

trans_from_rotate()

void trans_from_rotate	(	const double	mat3[9],
		Matrix4 *	mat4
	)

Transform 3x3 into 4x4 matrix:

Definition at line 369 of file Matrix4.C.

References Matrix4::mat.

                                                             {
  int i;
  for (i=0; i<3; i++) {
    mat4->mat[0+i] = mat3[3*i];
    mat4->mat[4+i] = mat3[3*i+1];
    mat4->mat[8+i] = mat3[3*i+2];
  }
}