In principle this function has a similar effect to Optimize
frame size for screen
described above, except here the
optimization is to the current printer resolution, of course. Please
bear in mind the basic notes about enlargement/reduction of raster
graphics made earlier. This means that a 640x400 pixel graphic (which
would fill the entire screen of an Atari SM124 monitor) would be
printed as 2.13x1.33 inch (5.42x3.39 cm) on a 300x300 dpi laser
printer. The Optimize frame to nearest factor
function (see
below) allows you to enlarge the graphic to the nearest whole number
multiple of its original size in each direction. On a 24-pin dot
matrix impact printer that can produce 360x360 dpi (although the pin
diameters are much larger and so the printed pixels will blend into
one another) you will get a minimum size of 1.78x1.11 inch
(4.51x2.82 cm). So when you are working with raster graphics, you must
always consider the output device to be used later in order to avoid
unexpected problems, because the rounding errors described earlier can
ruin the prettiest graphic.
Using this function is again similar to Optimize frame size for
screen
: Select a frame and click on the Optimize frame size for
printer
icon. Here too, depending whether the Optimize frame to
nearest factor
function is active (see below), the image size will
be rounded to the nearest multiple of its original size or reproduced
in a 1:1 display.
