Provided by: allegro5-doc_5.2.9.1+dfsg-1.1build4_all 

NAME
al_build_transform - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
void al_build_transform(ALLEGRO_TRANSFORM *trans, float x, float y,
float sx, float sy, float theta)
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 call‐
ing those functions.
Parameters:
• trans - Transformation to alter
• x, y - Translation
• sx, sy - Scale
• theta - Rotation angle in radians
Note: this function was previously documented to be equivalent to a different (and more useful) order
of operations: identity, scale, rotate, translate.
SEE ALSO
al_translate_transform(3alleg5), al_rotate_transform(3alleg5), al_scale_transform(3alleg5), al_com‐
pose_transform(3alleg5)
Allegro reference manual al_build_transform(3alleg5)