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added timefmt documentation

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Dima Kogan 2013-09-20 22:45:53 -07:00
parent 3c0743c192
commit f022590344
1 changed files with 28 additions and 1 deletions
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@ -1016,6 +1016,29 @@ C<replot> and we're plotting in realtime with C<--stream>, the plot will be
refreshed immediately. If a line of data begins with C<clear>, the plot is
cleared, to be re-filled with any data following the C<clear>.
=head3 Time/date data
If the input data domain is a time/date, this can be interpreted with
C<--timefmt>. This option takes a single argument: the format to use to parse
the data. The format is documented in 'set timefmt' in gnuplot, although the
common flags that L<strftime> understands are generally supported. The backslash
sequences in the format are I<not> supported, so if you want a tab, put in a tab
instead of \t. When this flag is given, some other options act a little bit
differently:
=over
=item
C<--xlen> is in seconds
=item
C<--xmin> and C<--xmax> I<must> use the format passed in to C<--timefmt>
=back
=head2 Real-time streaming data
To plot real-time data, pass in the C<--stream [refreshperiod]> option. Data
@ -1030,7 +1053,8 @@ To plot only the most recent data (instead of I<all> the data), C<--xlen
windowsize> can be given. This will create an constantly-updating, scrolling
view of the recent past. C<windowsize> should be replaced by the desired length
of the domain window to plot, in domain units (passed-in values if C<--domain>
or line numbers otherwise).
or line numbers otherwise). If the domain is a time/date via C<--timefmt>, then
C<windowsize> is in seconds.
=head2 Hardcopy output
@ -1143,6 +1167,9 @@ As an example, if line 3 of the input is "0 9 1 20"
--[no]3d Do [not] plot in 3D. This only makes sense with --domain.
Each domain here is an (x,y) tuple
--timefmt [format] Interpret the X data as a time/date, parsed with the given
format
--colormap Show a colormapped xy plot. Requires extra data for the color.
zmin/zmax can be used to set the extents of the colors.
Automatically increments extraValuesPerPoint