How to change dot size in gnuplot

Question

How to change point size and shape and color in gnuplot.

plot "./points.dat" using 1:2 title with dots

I am using above command to plot graph ,but it shows very small size points.

I tried to use command

set pointsize 20

but still point size is same.

score 81 · Answer 1 · edited Feb 21 '18 at 20:32

81

Use the pointtype and pointsize options, e.g.

plot "./points.dat" using 1:2 pt 7 ps 10

where pt 7 gives you a filled circle and ps 10 is the size.

See: Plotting data.

edited Feb 21 '18 at 20:32

kenorb

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answered May 22 '13 at 16:59

Schorsch

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Is there a simple way to specify pointsize in pixels? If the answer is complicated, just say no and I'll make a separate question. – Jared Beck Oct 23 '14 at 03:23
@JaredBeck sorry, I don't have a quick answer. You probably stand a better chance with a new questions. – Schorsch Oct 23 '14 at 15:32
1

Can we change the default point size for all plots without having to specify it for each one individually? – Tarek Jun 09 '16 at 11:13
2

@Tarek - see [this answer to: How to set a line style as default for multiple plots in Gnuplot](http://stackoverflow.com/a/14924457/2043505). – Schorsch Jun 09 '16 at 11:41
It seems that `ps` has no effect when the point type is a character like `"X"`. For example both `pt "X" ps 10` and `pt "X" ps 100` plot the same point size. – builder-7000 Mar 13 '20 at 19:56

score 8 · Answer 2 · answered Jul 10 '15 at 01:30

The pointsize command scales the size of points, but does not affect the size of dots.

In other words, plot ... with points ps 2 will generate points of twice the normal size, but for plot ... with dots ps 2 the "ps 2" part is ignored.

You could use circular points (pt 7), which look just like dots.

score 0 · Answer 3 · answered Jul 19 '21 at 08:49

0

plot "./points.dat" using 1:2 title with dt 2 lw 4

answered Jul 19 '21 at 08:49

Jishnu Goswami

1

How to change dot size in gnuplot

3 Answers3

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