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gluOrtho2D - define a 2D orthographic projection matrix

C Specification

void gluOrtho2D( GLdouble left,
    GLdouble right,
    GLdouble bottom,
    GLdouble top )

eqn not supported


left, right
Specify the coordinates for the left and right vertical clipping planes.
bottom, top
Specify the coordinates for the bottom and top horizontal clipping planes.


gluOrtho2D sets up a two-dimensional orthographic viewing region. This is equivalent to calling glOrtho with $ near ~=~ -1 $ and $ far ~=~ 1 $.

See Also

glOrtho(3G) , gluPerspective(3G)

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