# JKQtPlotter
This is an extensive library of function/data plotter classes for Qt (>= 4.7, tested with Qt up to 5.11).
This software is licensed under the term of the GNU Lesser General Public License 2.1
(LGPL 2.1) or above.
## Screenshots
[Screenshots directory](https://github.com/jkriege2/JKQtPlotter/tree/master/screenshots)
## Examples
This section assembles some simple examples of usage.
You can find more (complex) examples for the classes in this repository in the subfolder "test".
All test-projects are Qt-projects that use qmake to build. You can load them into QtCreator easily.
### Different Plot Data Styles
| Screenshot | Description | Notes |
|:-------------:| ------------- | ------------- |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest) | [Very Basic Example (Line Graph)](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest) | `JKQTPxyLineGraph`
C++-style QVector arrays of data |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_speed) | [Line Graph with Live Data / Speed Test](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_speed) | `JKQTPxyLineGraph`
external `std::array` data, not owned by datastore
live-data, measure plotting speed
tipps to increas plotting speed |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_symbols_and_styles) | [Line Graph with Different Symbols and Line Styles](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_symbols_and_styles) | `JKQTPxyLineGraph`
C++ vector of data
setting line styles and symbol styles
automatic graph coloring |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_stepplots) | [Step Line Plots in Different Styles](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_stepplots) | `JKQTPxyLineGraph`
C++ vector of data
setting line styles and symbol styles
automatic graph coloring |
| [Simple Line/Symbol Graph With Errorbars](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_symbols_and_errors) | `JKQTPxyLineErrorGraph`
C-style arrays of data |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_errorbarstyles) | [Different Types of Error Indicators](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_errorbarstyles) | `JKQTPxyLineErrorGraph`
different styles of error indicators for x- and y-errors
C++-style QVector for data
styling error indicators
moving key and formatting plotter grid |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_barchart) | [Simple Bar Charts](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_barchart) | `JKQTPbarVerticalGraph`
C-style arrays of data |
| [
](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_stackedbars) | [Stacked Bar Charts](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_stackedbars) | `JKQTPbarVerticalStackableGraph`, `JKQTPbarHorizontalStackableGraph`
C++-style vectors of data |
### Styling the Plot, Keys, Axes, ...
| Screenshot | Description | Notes |
|:-------------:| ------------- | ------------- |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | [logarithmic axes](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | `JKQTPxyLineGraph` and `JKQTPgeoText`
C++ vector of data
logarithmic axes and styling
plot line styles
internal LaTeX parser
add commenting text to a graph |
| [
](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_dateaxes) | [date/time axes](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_dateaxes) | `JKQTPxyLineGraph` and `JKQTPfilledVerticalRangeGraph`
C++ vector of data
date/time axes
plot min/max range graph
internal LaTeX parser
data from CSV files |
### Image data Plots
| Screenshot | Description | Notes |
|:-------------:| ------------- | ------------- |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_rgbimageplot_qt) | [`QImage` as a Graph](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_rgbimageplot_qt) | `JKQTPImage`
`QImage` drawn onto a plot with arbitrary scaling) |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot) | [Basic 1-channel Raw C Image Plot](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot) | `JKQTPColumnMathImage`
image data copied from C-style row-major array into a single column of the internal datastore
Describes several options of the image plotting classes (different ways of color coding, what to do with data above/below the limits etc.) |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_modifier) | [Modifier-Feature of Image Plots](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_modifier) | `JKQTPColumnMathImage`
image data copied from C-style row-major array into a single column of the internal datastore
Image is modified by a second image to display two data dimensions at the same time |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_nodatastore) | [Basic 1-channel Raw C Image Plot
without the internal datastore](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_nodatastore) | `JKQTPMathImage`
image data in a C-style row-major array, not using internal datastore |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_opencv) | [1-channel OpenCV cv::Mat Image Plot](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_imageplot_opencv) | `JKQTPColumnMathImage`
image data copied from OpenCV cv::Mat-structure into a single column of the internal datastore |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_rgbimageplot_opencv) | [RGB OpenCV cv::Mat Image Plot](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_rgbimageplot_opencv) | `JKQTPColumnRGBMathImage`
image data copied from OpenCV cv::Mat-structure into three columns of the internal datastore |
### Tools and Special Features
| Screenshot | Description | Notes |
|:-------------:| ------------- | ------------- |
| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtmathtext_simpletest) | [JKQTMathText: LaTeX Renderer](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtmathtext_simpletest) | |