How to input coordinates within the splot function for ftriangles in gnuplot

Question

I want to add a triangle between three points in my gnuplot.

I found this code:

set pm3d ftriangles
splot 'x.txt' w pm3d notitle

whereby x.txt contains for instance:

0 0 1
1 1 0
1 0 1

I would like to be able to do embed all of the code in 1 script without having the extra text file, so just together with the splot command. Is this possible? I tried something like this, but it didn't work:

set pm3d ftriangles
splot w pm3d notitle
0 0 1
e
1 1 0
e
1 0 1
e

Sorry for missing some basics in gnuplot...

Vinicius Placco · Accepted Answer · 2016-08-24 23:23:04Z

0

You could try a not-so-elegant small shell script:

#!/bin/bash

cat > x.txt << EOF
0 0 1
1 1 0
1 0 1
EOF

gnuplot << GNUPLOT

set pm3d ftriangles
splot 'x.txt' w pm3d notitle

GNUPLOT

rm x.txt

answered Aug 24, 2016 at 23:23

Vinicius Placco

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1 Comment

dorien Over a year ago

The thing is, I already have a .plt script which draws a complicated 3d plot and I want to add this to the existing script (without having to have a second file x.txt)

Community · Accepted Answer · 2017-05-23 12:23:02Z

0

this should work:

splot '-' w pm3d notitle
0 0 1
1 1 0
1 0 1
e

edited May 23, 2017 at 12:23

CommunityBot

11 silver badge

answered Aug 25, 2016 at 12:07

ewcz

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