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Questions tagged [gnuplot]

{gnuplot} Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, macOS, VMS, and many other platforms.

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96
votes
9answers
80k views

How to draw Venn diagrams (especially: complements) in LaTeX

What I am up to is to write some exercises dealing with logical formulas for my students, like: And the students should draw these formulas on Venn diagrams. At the end of the lesson, I really would ...
33
votes
4answers
17k views

Fill the area between two curves calculated by pgfplots

This is essentially the same question as fill the area between two curves when their coordinates are known. In that question, the curves were defined by known coordinates. I want to fill the area ...
19
votes
2answers
9k views

Fill a contour-plot

I did some calculations in Mathematica that gave me a contour plot: To include the output I wanted to however draw it with pfgplot. But there I don't get it to work, first of all the y-axis doesn't ...
19
votes
3answers
7k views

Plotting an implicit function using TikZ

How could one plot an implicit function, like (x^2+y^2)^3-4x^2y^2 using TikZ? I know gnuplot supports them, but they are drawn using a surface built from the function and intersecting the result with ...
18
votes
4answers
4k views

What is the best way to produce TikZ picture for discrete signals?

I would like to draw discrete signals, as shown in the illustration below, but not by way of drawings of individual lines.gnuplot could be used for this work? It would be nice to be able to choose the ...
18
votes
3answers
24k views

Gnuplot Setting the Number of Key Columns

I am having an issue setting the number of key (i.e., legend) columns using Gnuplot with the TiKz terminal. Here's a minimal working example of what I'm talking about: #!/usr/bin/env gnuplot set term ...
18
votes
1answer
856 views

How to draw force lines onto an equipotential contour plot using TikZ?

I'm really new to TikZ and need to reproduce the following figure: which corresponds to the gravitational field produced by two dissimilar masses (being the mass on the left twice the mass on the ...
18
votes
1answer
4k views

Plotting an implicit function using pgfplots

What is the correct way to plot an implicit function using pgfplots? Consider the following example: \documentclass{standalone} \usepackage{pgfplots} \pgfplotsset{compat=newest} \begin{document} \...
17
votes
1answer
2k views

Tikz for large files

I have a question regarding the use of TikZ. I have five large sets of data (15000 points) and I want to use TikZ to plot my data, but obviously the amount of memory isn't sufficient. Can anyone give ...
16
votes
2answers
6k views

Big data surface plots: Call gnuplot from tikz to generate bitmap and include automatically?

Motivation I have large numerical data files, that I would like to create density (surface) plots of. Since they are very big, we can rule out a few possibilities such as to plot them directly with ...
16
votes
1answer
614 views

Put Gnuplot mutiple surfaces plot in PGFplots axis environment to overcome z-buffer problem

Although PGFplots is the perfect tool for many depictions, it unfortunately does not have a properly working z buffer for intersecting surfaces (at this time, 10-09-2015). I'm trying to overcome this ...
15
votes
2answers
51k views

How can add some latex eq or symbol in gnuplot?

Gnuplot is power for plotting graph in scientific progress. I have met this problem. I want to add some commands like "$\ddot{x}$". or $\tau$ on the legend. I see some people suggest that plot [-...
15
votes
2answers
3k views

Is there an advantage to using LaTeX graphics instead of eps or pdf?

Back in my first courses I learned that the best graphic format to use when plotting data with gnuplot (which will later be used in a LaTeX document) is eps (encapsulated postscript). I didn't really ...
15
votes
1answer
4k views

Consistently specify a Function and use it for computation and plotting

I would like to be able to specify a mathematical function and be able to use that for multiple purposes including: Computation of values (see bullet points below) Graphing using pgfplot Graphing ...
15
votes
2answers
11k views

GnuplotTex: automatic plotting and vertical line indication

I am using pdflatex with the gnuplottex package, to plot a function with a local maximum; I'd like to find this maximum automatically and label it. For the most part, I'm already there (using the ...
14
votes
3answers
3k views

plot 3d graphs of functions defined implicitly

How can I plot 3d graphs of functions defined implicitly (quadratic forms, for Linear Algebra course notes -- I'd like to include lots of examples)? As far as I can see it is not possible with ...
14
votes
2answers
14k views

adding gnuplot capability to latex

I have been working with LaTeX, under TeXMaker (latest version 3.2.2) for several months, and recently added PGF/TikZ capability. On that occasion I feared there would be problems as I really have ...
14
votes
3answers
17k views

How to graph a function using TikZ?

I want to plot this function with a big range says, (-10,000:10,000), unfortunately I couldn't figure out how to set the domain, or xrange correctly to scale the graph nicely. This is what I have so ...
14
votes
2answers
30k views

Good quality images in pdflatex

Generally I include images in my latex document by the command \includegraphics[scale=0.5]{image.png} However, after doing pdflatex the image quality is always very poor in the resulting pdf file. ...
13
votes
1answer
11k views

Gnuplot and PDFLatex question

I'm trying to use Gnuplot and package gnuplottex to create plots directly in LaTeX. Started with the following simple example \documentclass[a4paper]{article} \usepackage[shell]{gnuplottex} \begin{...
13
votes
1answer
3k views

Adding values to pgfplot legend

As a follow-up to my earlier question (here), here is a question that is perhaps a little more latex than gnuplot. having used gnuplot and pgfplots to generate a fitted curve, is there an easy way to ...
13
votes
1answer
730 views

Using pgfplots and gnuplot and compiling with output-directory

I would like to use the pgfplots package along with gnuplot. However, I cannot get this to work if I compile using the -output-directory option. For example, if I have the following MWE: \...
12
votes
3answers
1k views

How to plot function sin(x)^2 / x^2

The above function looks like this: However, using tikzpicture with addplot \documentclass[11pt]{article} \usepackage{pgfplots} \usepackage{tikz} \begin{document} \begin{tikzpicture} \begin{axis} ...
12
votes
2answers
2k views

Plot large data

As you all know, TikZ has to face the limits in terms of memory, that is given by the TeX compiler. For most of my plots, I have a maximum time step of around 1us and I record several waveforms over ...
12
votes
1answer
6k views

Non-linear curve fitting with gnuplot

I am trying to use gnuplot with pgfplots in TexShop, following on from an example by Martin H in the comments here. I can get the data points in OK, and plot them but the fit (red line) does not seem ...
12
votes
2answers
4k views

gnuplot in LaTeX, without gnuplottex

I'm using the cairolatex terminal in gnuplot to create some surface plots (pgfplots is failing the task because of its hunger for memory). As the number of plots increase, I would like to include the ...
11
votes
3answers
11k views

How do I change the aspect ratio of gnuplot output?

How do I change the aspect ratio of the canvas of a gnuplot plot in LaTeX using the gnuplottex package? The following changes the aspect ratio of the output but not the canvas size, thus leaving a ...
11
votes
1answer
18k views

Creating colorful plot using latex terminal of gnuplot?

Most output terminals of gnuplot draw different lines in a plot in different colors. I'm trying to create a plot inside my PDF document using gnuplot's LaTeX terminal and the lines are only ...
10
votes
3answers
680 views

First half of plots is missing

I want to draw some functions with gnuplot. It works well, but the first half is missing and I don't know why. \begin{figure}[htpb] \begin{center} \begin{tikzpicture} \begin{axis}[width=0.8\textwidth,...
10
votes
3answers
9k views

Easiest way to plot matrix image

Is there an easier way to create this in pgfplots than plotting the matrix image externally and using addplot graphics (as on p.42 of the pgfplots manual)? A mesh plot (as suggested for plotting ...
10
votes
3answers
3k views

How to use GNU Plot to plot diagrams in TexShop

hope anyone can help with this... I have a very basic knowledge of TeXShop, but I need to plot some functions on it, say y=x. I learnt that this can be done by installing GNU Plot and writing in ...
10
votes
1answer
258 views

How to incorporate a TEXMF tree managed by distro's package manager when using TeX Live from upstream on a GNU/Linux system?

I am using upstream's TeX Live on a GNU/Linux system with default paths except for the use of symbolic links to facilitate switching between different versions of TL. So, for example, TEXMFMAIN is /...
10
votes
1answer
10k views

GNUplot and LaTeX (linestyles)

I've just started using GNUplot to create graphs. I've been using the epslatex terminal and my issue is, when I create my graph in the wxt terminal, and then replot it in the epslatex terminal, the ...
10
votes
1answer
1k views

TikZ: Fill (closed) parametric plot of catacaustic

Is there a trick to fill the parametric plot of a catacaustic which looks closed but isn’t closed in TiKZ meaning. The Problem is the egdge which looks closed but isn’t it … I guess I can experiment ...
10
votes
1answer
11k views

LaTeX formulas in gnuplot plot legends?

I would like to have my gnuplot legends set in LaTeX math mode, because they often are described by a formula. I use wxMaxima to generate the plots, but I could switch to using gnuplot directly, if ...
10
votes
1answer
6k views

Converting PDF to EPS results in low resolution rasterization

I have a problem with image converting for scientific manuscript. I have been using gnuplot to make graphs, using TikZ terminal, and finally generating the figure as a PDF with LaTeX. It results in a ...
10
votes
1answer
4k views

How can I setup PGFPlots to work with gnuplot?

Notes: I'm using Windows 8 and TeXworks. Also, I have never used gnuplot by itself, so I am unfamiliar with it. I'm trying to use PGFPlots with gnuplot to graph functions. I have not been able to ...
9
votes
2answers
1k views

Plot basic complex transformation in LaTeX

I want to first draw a shaded region on a xy-plane: 0≤x 0≤y≤π and then the image of the above region mapped onto a uv-plane by the transformation f=exp(z), i.e. the shaded region: exp(0)≤ρ ...
9
votes
1answer
2k views

Gnuplot inside LaTeX not working

I'm trying to create a gnuplot image inside my LaTeX document, but nothing is being displayed. My gnuplot works if I do it outside LaTeX. \begin{figure}[!ht] \begin{gnuplot}[terminal=pdf, ...
9
votes
2answers
1k views

How to use the results of `raw output` to create a smooth plot

As by my previous question on plotting an implicit curve I've got some output. But as you can see it is not quite what it should be (apart from your browser's downscaling by a factor 2 of course. The ...
9
votes
1answer
2k views

Gravitational/electric field with tikzpicture

I used the package pst-electricfield, in conjunction with pspicture, to obtain a graphical representation of gravitational/electric field (see below). Is it possible to achieve the same results with ...
8
votes
3answers
878 views

Reversing a path in TikZ

When I use \path plot function {x^2}; in tikz, it plots it left-to-right (the default domain is -5:5). This is annoying, because, for example, one cannot pile on -- plot function {x^2 + 1} -- cycle; ...
8
votes
3answers
3k views

pgfplots: 3D surface plot from data with free format

I want to plot 3D data from a file (data file) using pgfplots. The data represents an ellipsoid. I want to draw the outer shell like in the following picture, just without the background and in ...
8
votes
2answers
17k views

How can we import the gnuplot output in LaTeX?

I am using the gnuplot and create the myploy.tex as following: set terminal epslatex set output 'mplot.tex' set xlabel "Avg. No. of demand duration (slot) " set ylabel "Acceptence rate (%)" ...
8
votes
1answer
493 views

Why does PGFplots plot more than the desired range in a 3D plot?

I would like to plot a function in the range [-2, 2], but PGFplots keeps plotting a little bit more: Why is that the case and how do I fix it? Code \documentclass[varwidth=true, border=2pt]{...
8
votes
1answer
1k views

gnuplottex and lualatex

EDIT: This question covers a bug in gnuplottex which will be fixed in TeXLive 2013.If you still want to have the bug fixed, download the latest upstream version from CTAN and compile it yourself. Let ...
8
votes
2answers
10k views

Using gnuplot in tikzpicture environment using pgf-package

I´m trying to use gnuplot in the tikzpicture environment with the pgf package. Example \documentclass[paper=a4,12pt,version=last]{scrartcl} \usepackage[miktex]{gnuplottex} \usepackage{pgfplots} \...
8
votes
2answers
2k views

pgfplots: post-processing data created with gnuplot

I have managed to use pgfplots' gnuplot option to solve an implicit equation: \documentclass{standalone} \usepackage{tikz,pgfplots} \begin{document} \begin{tikzpicture} \begin{loglogaxis}[ ...
8
votes
1answer
2k views

gnuplot true standalone

Finally I have decided to go PDF. I can add pictures without EPS wrapper, and do drawings with TikZ - life is good :o) But how do I use gnuplot? For consistency I would like to use the tikz terminal, ...
8
votes
1answer
978 views

output-directory and shell commands

Let's use a small example to use gnuplot to draw a nice function using tikz. \documentclass{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw plot[domain=-3:3,samples=100] ...