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1995-07-10
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3.1.4 SCROLL WINDOW
The SCROLL WINDOW command is used to scroll or pan the currently displayed
window across the screen to reveal previously hidden part of the overall
drawing. The direction and displacement of the window can be controlled
using modifiers or IDENTS.
COMMAND FORMAT
#SCROLL WINDOW modifiers
or
#SCROLL WINDOW :Loc x1 x2 [:Loc x1 x2]
If no modifiers are entered IDENTS can be used to digitise 2 locations
within the visible window. The direction and displacement of the scroll
is defined as the difference beteen the first digitise 'x1', and the
second digitise 'x2'. ( See fig. 3.3 ).
MODIFIERS
LEFT Will scroll the current window to the left by a displacement
of half of the visible portion of the window.
RIGHT Will scroll the current window to the right by a displacement
of half of the visible portion of the window.
UP Will scroll the current window up towards the top of the
display by a displacement of half of the visible portion of
the window.
DOWN Will scroll the current window down towards the bottom of
the display by a displacement of half of the visible portion
of the window.
A valid combination of modifiers such as
#SCROLL WINDOW UP LEFT
may be entered.