Alternate method
Choosing a window with the WINDOW command, which has its lower left corner at
(lowx,lowy) and its upper right corner at (upx,upy),
is equivalent to choosing the graphics sub-window with the
SET command. That is, the following command:
WINDOW n lowx lowy upx upy
is equivalent to the following:
SET %XLOWERWINDOW lowx SET %YLOWERWINDOW lowy SET %XUPPERWINDOW upx SET %YUPPERWINDOW upy
Using the SET command to define a window is not recommended. When the
CLEAR
command is entered, the window chosen with the last
WINDOW command is set up, and the values of
XLOWERWINDOW,
XUPPERWINDOW,
YLOWERWINDOW, and
YUPPERWINDOW
are changed. Thus, if their values had been re-defined with the
SET> command, these values would be lost when the CLEAR command is entered.