Veusz

A plugin interface was included for creating datasets from other datasets inside the program. It comes with a variety of useful operations (e.g. add datasets, compute means). Plugins include color randomization and widget cloning for datasets. A vector field widget was added. A new object interface allows the document's tree of widgets to be manipulated. It is now possible to specify ranges of data for fitting. There are several minor user interface improvements and bugfixes.

This release includes a number of speedups. Several slow parts of the program have been rewritten in C++. The output is clipped before plotting, making plotting faster and file sizes smaller. Dynamic histograms of data can be created in a new dialog box. User-defined import plugins can now be used for importing any required file type. Bezier curves can be used to connect data points. There have been several minor improvements and bugfixes, including a new engineering format option for tick labels (e.g. 5k instead of 5000).

User-defined constants and functions are supported for evaluating expressions, and external Python functions can be imported. The SVG export filter has been rewritten. Dataset and widget names may include Unicode characters, quoting within expressions to avoid ambiguity. Data file descriptors are much more tolerant of syntax. There are new line and markers styles. Image widgets' transparency can be specified on a per-pixel basis. Axis ticks on the outside of axes are supported. A new polygon plotting widget has been added. The data capture dialog can be told to only retain the last N values.

Veusz can now export Windows EMF files. Importing data can now use different character encodings and delimiters can be specified for CSV files. The stylesheet handling has been rewritten so that the user can set defaults for all settings and set a default document stylesheet. Linking to datasets now uses relative rather than absolute filenames. Text labels can now be plotted on axes, for bar or xy plots. Points on graphs can be sized according to a different dataset. There have been several other minor changes, including a toolbar reorganization and preferences for colours.

Axes can now show dates and times plotted along them. Bar graph plotting groups or stacked bars were implemented. Data import can now ignore text in the data and add prefixes or suffixes to dataset names, and its dialog has been improved. Markers in xy plots can be thinned for large datasets. Further support for LaTeX markup has been added, including \frac, \\ for line breaks, and more symbols. Keys now show error bars where sensible. Axes can scale data by arbitrary factors. There have been several other more minor feature enhancements and bugfixes. The Mac OS X binary has been fixed to show icons.