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.TH "al_build_transform" "3" "" "Allegro reference manual"
.SH NAME
al_build_transform \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

void al_build_transform(ALLEGRO_TRANSFORM *trans, float x, float y,
   float sx, float sy, float theta)
.EE
.SH DESCRIPTION
Builds a transformation given some parameters.
This call is equivalent to calling the transformations in this order:
make identity, rotate, scale, translate.
This method is faster, however, than actually calling those functions.
.PP
\f[I]Parameters:\f[R]
.IP \[bu] 2
trans \- Transformation to alter
.IP \[bu] 2
x, y \- Translation
.IP \[bu] 2
sx, sy \- Scale
.IP \[bu] 2
theta \- Rotation angle in radians
.RS
.PP
\f[I]Note\f[R]: this function was previously documented to be equivalent
to a different (and more useful) order of operations: identity, scale,
rotate, translate.
.RE
.SH SEE ALSO
al_translate_transform(3), al_rotate_transform(3),
al_scale_transform(3), al_compose_transform(3)