GLUORTHO2D(3G) UNIX Programmer's Manual GLUORTHO2D(3G)
gluOrtho2D - define a 2D orthographic projection matrix
void gluOrtho2D( GLdouble left,
GLdouble right,
GLdouble bottom,
GLdouble top )
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.
glOrtho(3G), gluPerspective(3G)
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