A Plot is only displayed when returned (a semicolon will suppress the return), or if explicitly displayed with display(plt), gui(), or by adding show = true to your plot command.
!!! tip You can have MATLAB-like interactive behavior by setting the default value: default(show = true)
Calling gui(plt) will open a standalone window. gui(), like plot!(...), applies to the "current" Plot. Returning a Plot object to the REPL is like calling gui(plt).
Plots are shown inline when returned to a cell. The default output format is svg for backends that support it.
This can be changed by the html_output_format attribute, with alias fmt:
plot(rand(10), fmt = :png)Plots are shown in the Atom PlotPane when possible, either when returned to the console or to an inline code block. At any time, the plot can be opened in a standalone window using the gui() command.
The PlotPane can be disabled in Juno's settings.
Plots support 2 different versions per save-command.
Command savefig chooses file type automatically based on the file extension.
savefig(filename_string) # save the most recent fig as filename_string (such as "output.png")
savefig(plot_ref, filename_string) # save the fig referenced by plot_ref as filename_string (such as "output.png")In addition, Plots exports the convenience function png(filename::AbstractString).
Other functions such as Plots.pdf or Plots.svg remain unexported, since they might
conflict with exports from other packages.
In this case the string fn containing the filename does not need a file extension.
png(filename_string) # save the current fig as png with filename filename_string (such as "output.png")
png(plot_ref, filename_string) # save the fig referenced by plot_ref as png with filename filename_string (such as "output.png")- png (default output format for
savefig, if no file extension is given) - svg
When not using savefig, the default output format depends on the environment (e.g., when using IJulia/Jupyter).
Note: not all backends support every output file format ! A simple table showing which format is supported by which backend
| format | backends |
|---|---|
| eps | inspectdr, plotlyjs, pythonplot |
| html | plotly, plotlyjs |
| json | plotly, plotlyjs |
| gr, plotlyjs, pythonplot, pgfplotsx, inspectdr, gaston | |
| png | gr, plotlyjs, pythonplot, pgfplotsx, inspectdr, gaston, unicodeplots |
| ps | gr, pythonplot |
| svg | gr, inspectdr, pgfplotsx, plotlyjs, pythonplot, gaston |
| tex | pgfplotsx, pythonplot |
| text | hdf5, unicodeplots |
Supported file formats can be written to an IO stream via, for example, png(myplot, pipebuffer::IO), so the image file can be passed via a PipeBuffer to other functions, eg. Cairo.read_from_png(pipebuffer::IO).