veusz  3.3.1
About: Veusz is a scientific plotting and graphing program with a GUI, designed to produce publication-ready 2D and 3D plots.
  Fossies Dox: veusz-3.3.1.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

veusz Documentation

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  1. To see the Doxygen generated documentation please click on one of the items in the steelblue colored "quick index" bar above or use the side panel at the left which displays a hierarchical tree-like index structure and is adjustable in width.
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Veusz 3.3.1

Veusz is a scientific plotting package. It is designed to produce publication-ready PDF or SVG output. Graphs are built-up by combining plotting widgets. The user interface aims to be simple, consistent and powerful.

Veusz provides GUI, Python module, command line, scripting, DBUS and SAMP interfaces to its plotting facilities. It also allows for manipulation and editing of datasets. Data can be captured from external sources such as Internet sockets or other programs.

Changes in 3.3.1

  • New tools for zooming into plot on click, zooming out, moving plot center and resetting plot axes
  • Double clicking on axis range resets endpoint to Auto
  • Add key entries for histo widget
  • MacOS improvements
    • Big Sur compatibility fix
    • Fix file associations
  • Python 3.10 prerelease fixes
  • Fix for reproducible builds

Changes in 3.3

  • New histogramming widget (histo)
  • Add keyboard shortcut for showing/hiding widgets (Ctrl+[ and Ctrl+])
  • New security model allows running arbitrary code for documents in allowed locations
  • Allow Python-level module imports
  • New separate lo and hi error bar styles (#428)
  • Use same colour for key title as key text (#414)
  • Add preferences for number of significant figures in picker
  • New colormaps: inferno, magma, moreland, parula, plasma and viridis
  • Add CurrentPath() API command to get current widget path
  • Add dataset operations for reversing and subtracting dataset maximum
  • Now supports building using sip5
  • Bugfix for values in boxplots (#455)
  • Add setting to optionally omit paths in document files
  • New flight-recorder and histogram examples
  • Make sure line around arrows is solid (#429)
  • README is now renamed to
  • Switch to unsigned long long for widget IDs to fix build
  • Add multiline FieldTextEdit (#392) field
  • Windows binary now built only for 64 bit
  • MacOS binary now built for High Sierra (10.13) or later

Features of package:

Plotting features:

  • X-Y plots (with errorbars)
  • Line and function plots
  • Contour plots
  • Images (with colour mappings and colorbars)
  • Stepped plots (for histograms)
  • Bar graphs
  • Vector field plots
  • Box plots
  • Polar plots
  • Ternary plots
  • Plotting dates
  • Fitting functions to data
  • Stacked plots and arrays of plots
  • Nested plots
  • Plot keys
  • Plot labels
  • Shapes and arrows on plots
  • LaTeX-like formatting for text
  • Multiple axes
  • Axes with steps in axis scale (broken axes)
  • Axis scales using functional forms
  • Plotting functions of datasets
  • 3D point plots
  • 3D surface plots
  • 3D function plots
  • 3D volumetric plots

Input and output:

  • PDF/EPS/PNG/SVG/EMF export
  • Dataset creation/manipulation
  • Embed Veusz within other programs
  • Text, HDF5, CSV, FITS, NPY/NPZ, QDP, binary and user-plugin importing
  • Data can be captured from external sources


  • Use as a Python module
  • User defined functions, constants and can import external Python functions
  • Plugin interface to allow user to write or load code to
    • import data using new formats
    • make new datasets, optionally linked to existing datasets
    • arbitrarily manipulate the document
  • Scripting interface
  • Control with DBUS and SAMP

Other features:

  • Data filtering and manipulation
  • Data picker
  • Interactive tutorial
  • Multithreaded rendering

Requirements for source install:

  • Python 2.x (2.7 or greater required) or 3.x (3.3 or greater required)
  • Qt >= 5.5 (free edition)
  • PyQt >= 5.2 (Qt and SIP is required to be installed first)
  • SIP >= 4.15
  • Numpy >= 1.7

Optional requirements:


Veusz is Copyright (C) 2003-2020 Jeremy Sanders and contributors. It is licensed under the GPL version 2 or greater.

The latest source code can be found in this GitHub repository.