go-plot

go-plot

A Golang library with some Gnuplot features (in progress). For more info on Gnuplot, visit Gnuplot

General features already working

1. Go package to generate plots from multiple sets of points;
2. creation of plots from data files;
3. creation of plots from mathematical functions (in development);
4. graphic drivers to generate the following output formats: SVG, HTML Canvas, GIF, JPEG, PNG;
5. CLI interface to read plot files and generate the graphic output;

GNU-Plot like commands already working

1. plot command set terminal [svg/canvas/gif/jpeg/png]
2. plot command set output "file name"
3. plot command plot "data file" using i:j with [dots/boxes/lines/linespoints/points] title "description"
4. plot command plot [i:j] mathematical function
5. plot command set xlabel "label"
6. plot command set ylabel "label"

Additional features already working

1. REST API interface to receive plot commands and generate the graphic output (plot/svg endpoint);
2. REST API interface to receive plot commands and generate the graphic output (plot/canvas endpoint);
3. REST API interface to receive plot commands and generate the graphic output (plot/gif endpoint);
4. REST API interface to receive plot commands and generate the graphic output (plot/jpeg endpoint);
5. REST API interface to receive plot commands and generate the graphic output (plot/png endpoint);
6. Web interface to set plot configuration and generate dynamic plots through the canvas endpoint;
7. Dockerfile to serve Web interface and the REST API interface from a single container;

Quick start

To simply run the latest version from Github's package, type the following on bash or Powershell:

docker run -d -p 8080:8080 ghcr.io/aldebap/go-plot

Then use your favorite browser to go to the following URI: localhost:8080/plot

Plot file samples

set terminal svg
set output "output.svg"

plot "data" using 1:2 with boxes

set terminal svg
set output "output.svg"

plot "data" using 1:2 with lines,
     "data" using 1:3

set terminal svg
set output "output.svg"

plot [-4:+4] x * x - 3 * x + 2

set terminal svg
set output "output.svg"

plot [0:6.283184] sin(x)

Features backlog (for v1.0 release)

• Dataset upload button on Web Go-Plot;
• Github's Web Go-Plot package;
• help on how to run Web Go-Plot from Github's package;
• Webassembly version of Go-Plot for Web;
• configuration + generic test script;
• fix bug in multiple plot titles;
• signed literals in expression parser;
• assignment operator in function plots;
• parametric plots;
• refactor plot file parser;
• bug in scale evaluation;
• fix title positioning;
• rotate y axis for every driver;
• add more plot styles;
• add more colors to default pallete;
• colour pallete command;
• LaTeX driver;
• PDF driver;
• PS driver;