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Dima Kogan 2016-11-25 14:39:22 -08:00
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@ -1882,6 +1882,19 @@ in a Thinkpad.
--binwidth 10
--ymin 0 --xlabel 'File size (MB)' --ylabel Frequency
=head2 Plotting points on top of an existing image
This can be done by using C<--equation> to pass arbitrary plot input to gnuplot:
$ < features_xy.data
feedgnuplot --points --domain
--equation '"image.png" binary filetype=png flipy with rgbimage'
Here an existing image is given to gnuplot verbatim, and data to plot on top of
it is interpreted by feedgnuplot as usual. C<flipy> is useful here because
usually the y axis points up, but when looking at images, this is usually
reversed: the origin is the top-left pixel.
=head1 ACKNOWLEDGEMENT
This program is originally based on the driveGnuPlots.pl script from