'\" e '\"! eqn | mmdoc '\"macro stdmacro .ds Vn Version 1.2 .ds Dt 6 March 1997 .ds Re Release 1.2.0 .ds Dp May 02 11:53 .ds Dm 37 ortho2d.g .ds Xs 62574 3 ortho2d.gl .TH GLUORTHO2D 3G .SH NAME .B "gluOrtho2D \- define a 2D orthographic projection matrix .SH C SPECIFICATION void \f3gluOrtho2D\fP( GLdouble \fIleft\fP, .nf .ta \w'\f3void \fPgluOrtho2D( 'u GLdouble \fIright\fP, GLdouble \fIbottom\fP, GLdouble \fItop\fP ) .fi .EQ delim $$ .EN .SH PARAMETERS .TP \w'\f2left\fP\ \f2right\fP\ \ 'u \f2left\fP, \f2right\fP Specify the coordinates for the left and right vertical clipping planes. .TP \f2bottom\fP, \f2top\fP Specify the coordinates for the bottom and top horizontal clipping planes. .SH DESCRIPTION \%\f3gluOrtho2D\fP sets up a two-dimensional orthographic viewing region. This is equivalent to calling \f3glOrtho\fP with $ near ~=~ -1 $ and $ far ~=~ 1 $. .SH SEE ALSO \f3glOrtho(3G)\fP, \%\f3gluPerspective(3G)\fP