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ATARI Light Pen Operator's Manual
ELASTIC Mode
To understand how the program works< press the pen to the E block. The
drawing mode indicator bar will move into this block. Place and hold
the pen against the screen to the left of the border bar. As with the
8K version/ a line will be continuously drawn and erased from the
point of initial contact. The line will be frozen in place when you
lift the pen. The line is drawn in the color that is shown as the
current selection by the color indicator bar.
Press the pen against a different color block. The selector bar will
move into this block. The pen will now draw in the new color.
FILL Mode
The menu block beneath the E is an F selector block/
which indicates
FILL mode. After you have drawn other lines on the screen in E mode/
press the pen to the F block. The indicator bar will move into this
square.
In the FILL mode/ when the pen is pressed to the screen/ a line from
the pen to the first occurrence of a color other than the background
color/ located to the right of the current location of the pen/ will
be drawn in the currently selected color. As the pen is moved slowly
in a line/ the area between the pen and the first plotted color to the
right of the pen will be filled in with the current color.
If you lift the pen and press it to the screen elsewhere/ a line will
be drawn between the previously occupied spot and the new spot/ and
then all uncolored areas to the right of this new line will be filled
in with the current color of the pen.
NOTE; To keep this line from being drawn/ press the pen to the F
before pressing it to the drawing area again.
DOT Mode
The fifth block down from the top of the menu is the DOT mode. This
places dots in the currently chosen color under the pen. The program
takes about 1/20 second to calculate the position of the pen. If gou
draw on the screen in dot mode/ the faster you move the pen/ the
farther apart the dots will be plotted.
NOTE: The calculation time can be changed in line 40 (see Section 6).
DRAN Mode
The fourth drawing mode block/ represented by a short line/ is the
DRAM mode.
It is like the DOT mode/
with a connect-the-dots function
ATARI Light Pen Demonstration Program Cassette - 14
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