1al_orthographic_transform(3)                      al_orthographic_transform(3)
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NAME

6       al_orthographic_transform - Allegro 5 API
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              void al_orthographic_transform(ALLEGRO_TRANSFORM *trans,
12                 float left, float top, float n,
13                 float right, float bottom, float f)
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DESCRIPTION

16       Combines  the  given transformation with an orthographic transformation
17       which maps the screen rectangle to the given left/top and  right/bottom
18       coordinates.   near/far  is the z-buffer range, if there is no z-buffer
19       you can set it to -1/1.
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SINCE

22       5.1.3
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SEE ALSO

25       al_use_projection_transform(3), al_perspective_transform(3)
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29Allegro reference manual                          al_orthographic_transform(3)