matfunc.h

Functions

mat_mul

mat_rotate

mat_xlate

mat_shear

void mat_mul(
    s_matp mat1,
    s_matp mat2,
    s_matp mdest );

Multiplies two 3x3 matrices.

Parameter Descriptions

mat1

First matrix

mat2

Second matrix

mdest

Matrix where result will be stored

void mat_rotate(
    s_matp mat,
    float rads,
    s_matp mdest );

Applies a rotation to a matrix.

Parameter Descriptions

rads

Rotation angle in radians

mdest

Matrix where result will be stored

void mat_shear(
    s_matp mat,
    svec2 disp,
    s_matp mdest );

Applies a shear to a matrix.

Parameter Descriptions

disp

2D displacement vector

mdest

Matrix where result will be stored

void mat_xlate(
    s_matp mat,
    svec2 disp,
    s_matp mdest );

Applies a translation to a matrix.

Parameter Descriptions

disp

2D displacement vector

mdest

Matrix where result will be stored

Typedefs

typedef float s_mat3 [ 9 ];

Matrix of 3x3 floats.

typedef float *s_matp;

Pointer to matrix of floats.

© 2005 Jeffrey T. Read (Last Updated 7/27/2005)