Name
glu.Ortho2D -- define a 2D orthographic projection matrix
Synopsis
glu.Ortho2D(left, right, bottom, top)
Function
glu.Ortho2D() sets up a two-dimensional orthographic viewing region. This is equivalent to calling gl.Ortho() with near = -1 and far = 1.

Please consult an OpenGL reference manual for more information.

Inputs
left
specify the coordinate for the left vertical clipping planes
right
specify the coordinate for the right vertical clipping planes
bottom
specify the coordinates for the bottom horizontal clipping planes
top
specify the coordinates for the top horizontal clipping planes
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