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# JKQTPlotter - A Qt Plotting Library
This is an extensive library of function/data plotter classes for Qt (>= 5.0, tested with Qt up to 5.12).
This is an extensive C++ library for data visualization, plotting and charting for Qt (>= 5.0, tested with Qt up to 6.3). It is feature-rich but self-contained and only depends on the [Qt framework](https://qt.io).
This software is licensed under the term of the [GNU Lesser General Public License 2.1
(LGPL 2.1)](./LICENSE) or above.
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![EXAMPLES-Page](./screenshots/examplesbanner.png)
## Main Features
- 2D Plotter widget class ([JKQTPlotter](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter.html)
- 2D Plotter widget class [JKQTPlotter](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter.html):
- high-quality plotting
- no other dependencies than Qt >= 5.0 ([CImg](https://cimg.eu/) and [OpenCV](https://opencv.org/) are optional dependencies)
- highly customizable axes/grids (linear/log, date/time, custom ticks ...)
- [JKQTMathText:](http://jkriege2.github.io/JKQtPlotter/group__jkqtmathtext.html) integrated LaTeX parser (pure C++, no dependencies) to render mathematical equations in axis labels, ticks, ...
- extensive user-interactions pre-programmed (several zooming modes, selecting regions, custom context menus, switch graph visibility, ...)
- full print and export (PDF,PNG,...) support with preview and parametrization out-the-box
- highly customizable look and feel
- [highly customizable look and feel](http://jkriege2.github.io/JKQtPlotter/group__jkqtpplotter__styling.html)
- supports the Qt layout system for graphs and allows to symchronize several graphs with each other
- centralized data management in an internal datastore:
- [centralized data management](http://jkriege2.github.io/JKQtPlotter/group__jkqtpdatastorage.html) in an internal datastore [JKQTPDatastore](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_datastore.html):
- data organized by columns, can also represent image data (ropw-major)
- allows to reuse a column in several graphs
- access via Qt's model view framework
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- complete with GUI (table view)
- export capabilities (e.g. to CSV, SYLK, ...)
- C++ standard iterator interface
- statistics library (basic statistics, boxplots, histograms, kernel density estimates, regression analysis, polynomial fitting)
- large variety of graphs that can be added to a plot, e.g.:
- scatter-plots (also parametrized color/size/symbol by a third data-column)
- line graphs, step graphs, impulses
- filled curves
- barcharts (also stacked)
- extensive support for different styles of error indicators
- integrated mathematical function parser for function plots (with intelligent rendering algorithm)
- line/scatter graphs can also be based on C/C++ functions instead of data series (C++11 support!)
- statistical plots (e.g. boxplots)
- extensive library of image plots (inclusing different color-scale modes, RGBA-plots, overlays/masks)
- contour plots
- geometric forms/annotations
- can be easily extended by deriving a new graph from JKQTPPlotElement, JKQTPPlotAnnotationElement, JKQTPGeometricPlotElement, JKQTPGraph
- optional: OpenCV, CImg interfaces
- [statistics library](http://jkriege2.github.io/JKQtPlotter/group__jkqtcommon__statistics__and__math.html) (basic statistics, boxplots, histograms, kernel density estimates, regression analysis, polynomial fitting)
- large variety of [graphs](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__graphsgroup.html) that can be added to a plot, e.g.:
- [scatter-plots](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__linesymbolgraphs__param.html) (also parametrized color/size/symbol by a third data-column)
- [line graphs](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__linesymbolgraphs__simple.html), [step graphs](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_special_line_horizontal_graph.html), [impulses](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__barssticks.html)
- [filled curves](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__filledgraphs.html)
- [barcharts](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__barssticks.html) (also stacked)
- extensive support for different [styles of error indicators](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__basegraphserrors.html)
- [integrated mathematical function parser](http://jkriege2.github.io/JKQtPlotter/group__jkqtptools__math__parser.html) for [parsed function plots](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__parsed_fgraphs.html) (with intelligent rendering algorithm)
- line/scatter graphs can also be [based on C/C++ functions](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__functiongraphs.html) instead of data series (C++11 support!)
- [statistical plots)](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__statgraphs.html) (e.g. boxplots, violinplots, ...)
- large variety of [image plots](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__imagelots.html) (inclusing different color-scale modes, RGBA-plots, overlays/masks)
- [contour plots](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__imagelots__contour.html)
- [geometric forms](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__geoplots.html) / [annotations](http://jkriege2.github.io/JKQtPlotter/group__jkqtplotter__annotations.html)
- can be easily extended by deriving a new graph from [JKQTPPlotElement](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_plot_element.html), [JKQTPPlotAnnotationElement](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_plot_annotation_element.html), [JKQTPGeometricPlotElement](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_geometric_plot_element.html), [JKQTPGraph](http://jkriege2.github.io/JKQtPlotter/class_j_k_q_t_p_graph.html)
- optional: [OpenCV interface](http://jkriege2.github.io/JKQtPlotter/group__jkqtpinterfaceopencv.html), [CImg interfaces](http://jkriege2.github.io/JKQtPlotter/group__jkqtpinterfacecimg.html)
- CMake-based build system
- extensive set of [Examples/Tutorials](./examples/README.md)
- extensive doxygen-generated [Documentation](http://jkriege2.github.io/JKQtPlotter/index.html)