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al_invert_transform(3)	    Library Functions Manual	  al_invert_transform(3)

NAME
     al_invert_transform - Allegro 5 API

SYNOPSIS
	    #include <allegro5/allegro.h>

	    void al_invert_transform(ALLEGRO_TRANSFORM *trans)

DESCRIPTION
     Inverts  the passed transformation.  If the transformation is nearly singu-
     lar (close to not having an inverse) then the returned  transformation  may
     be invalid.  Use al_check_inverse(3) to ascertain if the transformation has
     an inverse before inverting it if you are in doubt.

     Parameters:

     * trans - Transformation to invert

       Note:  Allegro's  transformation  inversion functions work correctly only
       with 2D transformations.

SEE ALSO
     al_check_inverse(3)

Allegro reference manual				  al_invert_transform(3)

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