HIGHER RESOLUTION GRAPHICS
There are seven graphics modes you can use; they are sum-
marized in Table 6-2. Table 6-2
Function Control code
Normal density (60 dots/inch) (ESC)“*“CHR$(O) nl n2 ml m2 . . .
Double densitv (120 dots/inch) (ESC)“*“CHR$(l) nl vL?ml m2 . . .
Double der----, 11 m2 . . .
Quadruple dens.-, ,-
Semi-double density
ifv (240 dots/inch) (ESC)“z”CHR$(3) :l n2 ml m2
~~1 (8u aot
Plotter graphics (72 dots/i----~,
CRT graphics (90 dots/inch) I<ESCj”*“CHR$iGj nl n2ml m2 . ..I
You will notice that the higher the density of the graphic
mode, the more points you will need to plot. Higher density
modes also take longer to print. The double density double
speed mode ignores every second column of dots to give you a
quick printout for debugging purposes; you can then change to
true double density graphics for the final printout.
If your software cannot access the (ESC) “*” command, there
are individual letter escape commands for four of the modes.
See Table 6-3.
Table 6-3
Alternative graphics commands