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9.7.6 Optimization tips and an example
When managing complex plots, it may be helpful to use preview mode (see §The
two options are for native resolution of about 1435 or 2870 steps per inch (56
or 113 steps per mm). Both options are finer than what can be resolved with
pens. The 1435 DPI option is slightly faster, while the 2870 DPI option is slightly
smoother, giving a neater plot. The dierence between the two settings is typi-
cally minor in practice., on page 47) with rendering of pen-up travel enabled
and the report time elapsed option, in order to preview what the plot order looks
like and estimate the plotting time.
Here is an extreme example: a stipple plot, created with StippleGen, consisting of
2000 filled circles and laid out on a letter-size sheet of paper.
To make this a “worst case” example, the stacking order of the stipples within the
file has been randomized, such that there is no particular order to which the filled
circles appear in the file.
If we now plot that file in preview mode with pen-up travel rendered (and plot
optimization o), we get the following utter mess:
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