ortho2 Subroutine

public subroutine ortho2(left, right, bottom, top)

NAME

ortho2(3f) - [M_pixel] define the area of the virtual world coordinates
             to map to the viewport
(LICENSE:PD)

SYNOPSIS

definition:

subroutine ortho2(left, right, bottom, top)
real,intent(in) :: left, right, bottom, top

DESCRIPTION

Defines the section of the virtual world coordinates to map to the
viewport. All the projection routines define a new transformation
matrix, and consequently the world units. Parallel projections are
defined by ortho2.

EXAMPLE

AUTHOR

John S. Urban

LICENSE

Public Domain

Arguments

Type IntentOptional Attributes Name
real, intent(in) :: left
real, intent(in) :: right
real, intent(in) :: bottom
real, intent(in) :: top

Contents

Source Code

ortho2

Source Code

subroutine ortho2(left, right, bottom, top)

! ident_24="@(#) M_pixel ortho2(3f) define the area of the virtual world coordinates to map to the viewport"

real,intent(in) :: left, right, bottom, top ! Define x (left, right), and y (bottom, top) clipping planes.

   P_window_left=left
   P_window_right=right
   P_window_bottom=bottom
   P_window_top=top
   call mapping()

end subroutine ortho2