How To Draw A Square In Gnuplot

Drawing a (right-angled) triangle using gnuplot

Hello, anybody.

I would like to utilize gnuplot to add triangle images to a LibreOffice Writer certificate I'thousand writing. If there are, in your opinion, better tools for the job, I am interested in hearing what they are, only I still would similar to know how to operate gnuplot, since it seems to be something that I volition love when I master it.

I'm a complete beginner to using gnuplot, and I was hoping someone could tell me how to draw a (right-angled) triangle using gnuplot, and accept the triangle have those two curvy things representing the non-90-degree angles, in addition to having that square-or-two-sides-of-a-foursquare symbol that represents xc caste angles.

I would Actually appreciate it if someone could give me the most bones syntax possible to draw such a triangle!

In fact, I don't even yet know how to brand gnuplot look through a file for the commands instead of me giving them manually via the command line, and so please exist gentle!

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Re: Drawing a (right-angled) triangle using gnuplot

DISCLAIMER: I am only an occasional gnuplot user, I pretty much have to relearn it every time

To answer your 2d question, y'all can put any commands that y'all use in an interactive gnuplot session into a plainly text file and simply call it in batch mode similar

To plot a triangle, you could just define the vertices of your as regular points in a 2d plot due east.thousand. create a file containing x y data pairs

Code:

$ cat tri.dat 1.0  1.0 i.0  4.0 v.0  one.0 1.0  1.0

and so plot information technology from the interactive gnuplot prompt every bit

Code:

gnuplot> plot [0:6] [0:6] 'tri.dat' championship 'Correct triangle' with lines

However the newer versions of gnuplot have some quite nice 'object' plotting options - since you'll probably need to use 'objects' for the bending markers, information technology might be easiest to plot the basic triangle as a polygon object every bit well. This was the best I could come up up with:

Code:

$ cat tri.plt  set up angle degrees  # use 'square' attribute ratio else calculated angles don't match display angles set size square  # draw a three,4,v right triangle as a polygon - f[ill]s[tyle] empty border 1 (reddish) set object ane poly from ane,i to ane,iv to five,i to 1,one fs empty border i  # draw a small rect[angle] to represent the rightangle gear up object 2 rect from i,1 to one.25,1.25 fs empty border 0  # depict an arc for the upper angle set object iii circle center i,iv size 0.35 arc [-90:-(90-acos(three.0/5.0))]  # draw an arc for the lower angle set up object iv circle eye 5,one size 0.35 arc [-(180+acos(4.0/5.0)):-180]  # plot 'something' - else objects don't show plot [0:6] [0:half-dozen] 0 championship 'Right triangle', 0 notitle

then run it from the vanquish as

Lawmaking:

$ gnuplot -p tri.plt

Screenshot from 2013-xi-15 19:29:53.png

Final edited past steeldriver; November 16th, 2013 at 01:50 AM.

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Re: Drawing a (right-angled) triangle using gnuplot

A web search on gnuplot tutorial volition bring up several hits including:

http://people.duke.edu/~hpgavin/gnuplot.html

gnuplot is worth learning. I started using it in 1986 to plot experimental data. Not much has inverse and that is what I like about information technology.

Terminal edited past tgalati4; Nov 16th, 2013 at 04:25 AM.

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Re: Drawing a (right-angled) triangle using gnuplot

Steeldriver, you accept given me some amazing basic syntax that is specific to my situation to learn from! [nerdgasm]Oh my god![/nerdgasm]

Thank you lot both, specially steeldriver!

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Re: Cartoon a (right-angled) triangle using gnuplot

I forgot to mention, if you want to create embeddable files (png / gif / jpeg etc.) that y'all tin can import into your document, you can use the 'set term[inal]' command - either inside the script, or passed as an expression on the command line due east.1000.

Code:

gnuplot -e "fix term postscript; set up output 'tri.ps'" tri.plt

or equivalently using stdout

Lawmaking:

gnuplot -e "set term postscript" tri.plt > tri.ps

For a consummate list of available concluding types in your installation, utilise 'prepare term' with no argument at the gnuplot prompt.

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Source: https://ubuntuforums.org/showthread.php?t=2188153

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