Introduction
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Chapter 1. Introduction



LabPlot is a program for two- and three-dimensional graphical presentation of data sets and functions. LabPlot allows you to work with multiple plots which each can have multiple graphs. The graphs can be produced from data or from functions.

All settings of a complete set of plots can be saved in a project files. These project files may be opened by command line parameters, using the File menu, or by drag and drop.

Every object (title, legend, axes, axes label) can be dragged with the mouse. A double click on an object opens the corresponding dialog to change the options of the object.

The settings of a plot/graph may also be changed using the Appearance menu. With the Edit menu additional data sets and functions (graphs) can be included which can be displayed in the same as well as in different plot.

LabPlot Revision History

  • Version 1.5.1 (March 27, 2006)

    • new analysis functions : noise, signal filter, auto-/crosscorrelation and capability analysis

    • "add graph" dialog in graph dialog

    • improved set-value dialog in spreadsheet

    • support for panel plots and improved surface and pie plot

    • much improved explorer dialog with drag and drop

    • save and restore sheets position/size in project

    • statistics on columns/rows and fitting in spreadsheets

    • new axes tic style and fill between curves

    • support for richtext in legend

    • save settings and update open dialogs

    • optional xml project format (will be used later as standard format)

    • lot of bug fixes

  • Version 1.5.0 (August 15, 2005)

    • more weightings+residuals for regression/nonlinear fit

    • added wavelet and Hankel transform and improved analysis functions

    • improved surface and qwt 3d plot

    • improved behaviour with non-linear scales and LaTeX label support

    • import/export data from/to PostgreSQL, mySQL, etc. via KexiDB

    • import Origin opj projects (Origin worksheets only)

    • better scripting support

    • many bug fixes

  • Version 1.4.1 (March 28, 2005)

    • nonlinear fit any user-defined function with up to 9 parameter

    • configure default value for plot style and symbols

    • clone graphs and delete/clone plots

    • improved import/export settings with support for binary data

    • more analysis functions : compress, peak find, periodical, seasonal

    • regression/nonlinear fit of data with errorbars

    • speed mode for large data sets and data mode for inspecting data points

    • zoomin/zoomout, marker and improved axis grid

    • mask data points in spreadsheet and plot

  • Version 1.4.0 (December 15, 2004)

    • versatile spreadsheet with data import, editing, etc.

    • new 3d plot with rotation and colormaps (using qwtplot3d library)

    • double buffered plotting (no flicker)

    • data set operations

    • import/export of over 80 image formats (svg, fits,...) and better image handling

    • direct export to ps, eps, pdf via ghostscript

    • simple scripting using QSA

  • Version 1.3.1 (August 30, 2004)

    • native export to svg, eps and more graphic formats

    • support for ternary and polar plots

    • added (de)convolution and interpolation

    • better zooming, errorbar plotting and annotate values

    • more plot symbols and brush

    • reading and writing of netcdf, cdf and audio (wav,au,snd,aiff,...) files

    • improved graph list dialog

    • new file info dialog

  • Version 1.3.0 (June 14, 2004)

    • multiple plots per worksheet

    • handling of time and date format

    • improved axes settings

    • improved surface (density, contour) plots

    • improved nonlinear fit

    • support for pie plots

    • improved documentation

    • German handbook

  • Version 1.2.3 (February 16, 2004)

    • linear regression and nonlinear fit

    • improved fourier transform using gsl or fftw

    • integration, differences and histograms

    • creating, editing and moving drawing objects with mouse

    • reading/writing of compressed data (gzip,bzip2)

    • KDE KPart for LabPlot project files

    • more bugfixes and improved German translation

  • Version 1.2.2 (December 17, 2003)

    • logarithmic scales of axes

    • support of drawing objects

    • support for gsl special functions and distributions

    • fourier transform via gsl

    • export to pdf, fig, dxf, etc. via pstoedit

    • export to > 100 different image formats via ImageMagick

    • more bugfixes

  • Version 1.2.1 (October 26, 2003)

    • much improved GUI

    • better KDE integration

    • richtext title and axes label

    • improved 3d plotting

    • new analysis functions

    • better data reading

    • configure and save user settings

    • examples

  • Version 1.2.0 (September 08, 2003)

    • new improved internal plot structure

    • parser support for functions with more parameters

    • new surface plot with contour support and legend

    • support for JPEG2000 and tiff

    • user guide (this handbook)

    • more bugfixes

  • Version 1.1.1 (July 26, 2003)

    • matrix-data-reading

    • density plots from function and data

    • parser completely rewritten

    • colored and scaled printing

    • export plot as graphics

    • more flexible data reading

    • improved axis tics label (format and position)

    • more bugfixes

  • Version 1.1 (June 22, 2003)

    • more object attributes (title color, grid color, etc.)

    • support 2d errorbars

    • drag and drop of the title, the axes with correct rescaling

    • improved save and open of all plots in a project file

    • lots of bug fixes

  • Version 1.0.3 (May 11, 2003)

    • Plot list in menubar

    • improved workspace management

    • drag and drop of the legend

    • EditDialog for editing data

  • Version 1.0.2 (April 4, 2003)

    • shift plot with toolbuttons

    • scaling of plot with toolbuttons

    • opening Dialogs via mouse click

    • improved print preview

  • Version 1.0.1 (March 18, 2003)

    • Print Preview implemented

    • introduced graph label different from name

  • Version 1.0 (March 3, 2003; renamed to LabPlot)

    • support for KDE 3.0 and KDE 2.x

    • automake and autoconf scripts (./configure)

  • Version 0.9.x (February 26, 2003)

    • improved DataDialog

    • save and open of an Plot

    • started with i18n (de)

    • started with migration from Qt™ to KDE

    • improved ListDialog

    • changing of data and function graphs in ListDialog

    • support for grid in 2d and 3d plots

  • Version 0.4.0 (October 7, 2002)

    • support for 3D Plots

    • using GraphList for storing all graph of a plot

    • better scaling of the whole plot

    • new class GraphM for matrix-data support

  • Version 0.2.1 (June 30, 2001)

    • Legend in Plot

    • ListDialog for all graphs in a Plot

  • Version 0.2 (June 16, 2001)

    • first PlotWidget with single graph

    • creating data via FunctionDialog

  • Version 0.1 (May 20, 2001; first release under the name QPlot)

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