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.TH "al_compose_transform" "3alleg5" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_compose_transform - Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include <allegro5/allegro.h>

void al_compose_transform(ALLEGRO_TRANSFORM *trans, const ALLEGRO_TRANSFORM *other)
\f[R]
.fi
.SH DESCRIPTION
.PP
Compose (combine) two transformations by a matrix multiplication.
.IP
.nf
\f[C]
trans := trans other
\f[R]
.fi
.PP
Note that the order of matrix multiplications is important.
The effect of applying the combined transform will be as if first
applying \f[C]trans\f[R] and then applying \f[C]other\f[R] and not the
other way around.
.PP
\f[I]Parameters:\f[R]
.IP \[bu] 2
trans - Transformation to alter
.IP \[bu] 2
other - Transformation used to transform \f[C]trans\f[R]
.SH SEE ALSO
.PP
al_translate_transform(3alleg5), al_rotate_transform(3alleg5),
al_scale_transform(3alleg5)