Re: [Gnuplot-bugs] symbol points of curve

[Thomas S. <t.s...@fz...>]

you just plot twice:

plot 'file.data' with lines, '' every 25 with points

to get the same color for lines and points:

plot 'file.data' with lines linetype 1, '' every 25 with points linetype 1

to get only one key with line and point (the last of the three curves
is the 'invisible pseudo-dataset' Hans-Bernhard Bröker-2 mentioned
in his email):

plot 'file.data' notitle with lines linetype 1, '' every 25 notitle with
points linetype 1 pointtype 2, 0/0 title 'description' with linespoints
linetype 1 pointtype 2

the same but shorter:

plot 'file.data' not w l lt 1, '' ev 25 not w p lt 1 pt 2, 0/0 t
'description' w lp lt 1 pt 2

> We presently use gnuplot software version 4.2 on
> a scientific thermohydraulic code and we have a
> problem when we use symbol at each point of the
> curve; the data has 500 points, then there are too
> many symbols for the troubled curve (we have used
> small symbols with pointsize command).
> Is it possible to ask to gnuplot to put only, for example,
> 20 symbols spread along the curve,
> and keep a curve  following the 500 data points.
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