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<!DOCTYPE html>

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    <title>Veusz documentation &#8212; Veusz 3.6.2 documentation</title>
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  <section id="veusz-documentation">
<h1>Veusz documentation<a class="headerlink" href="#veusz-documentation" title="Permalink to this headline">¶</a></h1>
<p>Jeremy Sanders</p>
<p>Copyright 2021</p>
<p>This document is licensed under the GNU General Public
License, version 2 or greater. Please see the file COPYING for
details, or see <a class="reference external" href="http://www.gnu.org/licenses/gpl-2.0.html">http://www.gnu.org/licenses/gpl-2.0.html</a>.</p>
<p>This is the documentation for Veusz. Veusz is a multiplatform
scientific plotting package with a graphical user interface.</p>
<p>Contents:</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="introduction.html">Introduction</a><ul>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#veusz">Veusz</a></li>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#installation">Installation</a></li>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#getting-started">Getting started</a></li>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#terminology">Terminology</a><ul>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#widget">Widget</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#settings-properties-and-formatting">Settings: properties and formatting</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#datasets">Datasets</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#text">Text</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#measurements">Measurements</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#color-theme">Color theme</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#axis-numeric-scales">Axis numeric scales</a></li>
<li class="toctree-l3"><a class="reference internal" href="introduction.html#three-dimensional-3d-plots">Three dimensional (3D) plots</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#the-main-window">The main window</a></li>
<li class="toctree-l2"><a class="reference internal" href="introduction.html#my-first-plot">My first plot</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="datasets.html">Reading data</a><ul>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#standard-text-import">Standard text import</a><ul>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#data-types-in-text-import">Data types in text import</a></li>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#descriptors">Descriptors</a></li>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#descriptor-examples">Descriptor examples</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#csv-files">CSV files</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#hdf5-files">HDF5 files</a><ul>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#error-bars">Error bars</a></li>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#slices">Slices</a></li>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#d-data-ranges">2D data ranges</a></li>
<li class="toctree-l3"><a class="reference internal" href="datasets.html#dates">Dates</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#d-text-or-csv-format">2D text or CSV format</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#fits-files">FITS files</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#reading-other-data-formats">Reading other data formats</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="datasets.html#manipulating-datasets">Manipulating datasets</a><ul>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#using-dataset-plugins">Using dataset plugins</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#using-expressions-to-create-new-datasets">Using expressions to create new datasets</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#linking-datasets-to-expressions">Linking datasets to expressions</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#splitting-data">Splitting data</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#defining-new-constants-or-functions">Defining new constants or functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="datasets.html#dataset-plugins">Dataset plugins</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="datasets.html#capturing-data">Capturing data</a></li>
<li class="toctree-l1"><a class="reference internal" href="api.html">Veusz command line and embedding interface (API)</a><ul>
<li class="toctree-l2"><a class="reference internal" href="api.html#introduction">Introduction</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#commands-and-api">Commands and API</a><ul>
<li class="toctree-l3"><a class="reference internal" href="api.html#action">Action</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#add">Add</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#addcustom">AddCustom</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#addimportpath">AddImportPath</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#clonewidget">CloneWidget</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#close">Close</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#createhistogram">CreateHistogram</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#currentpath">CurrentPath</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#datasetplugin">DatasetPlugin</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#enabletoolbar">EnableToolbar</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#export">Export</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#filterdatasets">FilterDatasets</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#forceupdate">ForceUpdate</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#get">Get</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getchildren">GetChildren</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getclick">GetClick</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getcolormap">GetColormap</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getdata">GetData</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getdatatype">GetDataType</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#getdatasets">GetDatasets</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#gpl">GPL</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfile">ImportFile</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfile2d">ImportFile2D</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfilecsv">ImportFileCSV</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfilefits">ImportFileFITS</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfilehdf5">ImportFileHDF5</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfilend">ImportFileND</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfileplugin">ImportFilePlugin</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importfitsfile">ImportFITSFile</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importstring">ImportString</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importstring2d">ImportString2D</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#importstringnd">ImportStringND</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#isclosed">IsClosed</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#list">List</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#load">Load</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#movetopage">MoveToPage</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#reloaddata">ReloadData</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#rename">Rename</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#remove">Remove</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#resizewindow">ResizeWindow</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#save">Save</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#set">Set</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setantialiasing">SetAntiAliasing</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setcompatlevel">SetCompatLevel</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdata">SetData</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdataexpression">SetDataExpression</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdatand">SetDataND</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdatarange">SetDataRange</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdata2d">SetData2D</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdata2dexpression">SetData2DExpression</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdata2dexpressionxyz">SetData2DExpressionXYZ</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdata2dxyfunc">SetData2DXYFunc</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdatadatetime">SetDataDateTime</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setdatatext">SetDataText</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#settoreference">SetToReference</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setupdateinterval">SetUpdateInterval</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#setverbose">SetVerbose</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#startsecondview">StartSecondView</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#tagdatasets">TagDatasets</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#to">To</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#quit">Quit</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#waitforclose">WaitForClose</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#zoom">Zoom</a></li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="api.html#security">Security</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#using-veusz-from-other-programs">Using Veusz from other programs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="api.html#non-qt-python-programs">Non-Qt Python programs</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#older-path-based-interface">Older path-based interface</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#new-style-object-interface">New-style object interface</a></li>
<li class="toctree-l3"><a class="reference internal" href="api.html#translating-old-to-new-style">Translating old to new style</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</section>
<section id="indices-and-tables">
<h1>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
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<li><p><a class="reference internal" href="genindex.html"><span class="std std-ref">Index</span></a></p></li>
<li><p><a class="reference internal" href="py-modindex.html"><span class="std std-ref">Module Index</span></a></p></li>
<li><p><a class="reference internal" href="search.html"><span class="std std-ref">Search Page</span></a></p></li>
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