NAME

screenspace − interprets graphics positions as absolute screen coordinates

SPECIFICATION

C
screenspace()

FORTRAN
subroutine screen

Pascal
procedure screenspace;

DESCRIPTION

screenspace makes a program interpret graphics positions as absolute screen coordinates.  This allows pixels and locations outside a program’s graphics window to be read.  screenspace is equivalent to:

int xmin, ymin;
getorigin(&xmin, &ymin);
viewport(-xmin, XMAXSCREEN-xmin, -ymin, YMAXSCREEN-ymin);
ortho2(-0.5, 1023.5, -0.5, 767.5);

SEE ALSO

getorigin, ortho2, viewport Using mex, Chapter 2, Programming with mex

NOTE

This routine is available only in immediate mode. 

Version 3.6  —  December 20, 1987