window(3G) window(3G)
NAME
window - defines a perspective projection transformation
SPECIFICATION
C window(left, right, bottom, top, near, far)
Coord left, right, bottom, top, near, far;
FORTRAN subroutine window(left, right, bottom, top, near, far)
real left, right, bottom, top, near, far
DESCRIPTION
window specifies the position and size of a rectangular
viewing frustum in terms of the boundaries of the
rectangular region (left, right, bottom, top); the distance
closest to the eye in the near clipping plane (near); and
the distance to the far clipping plane (far). The system
will project the image with perspective onto the screen area
that viewport defines.
window loads a matrix onto the transformation stack; it
overwrites whatever was there.
SEE ALSO
ortho, perspective, viewport
Programming Guide, Section 4.3, Projection Transformations
Page 1 (printed 8/20/87)