Plotpy

Bug fixes:

* [Issue 9](https://github.com/PlotPyStack/PlotPy/issues/9) - MacOS: `error: a space is required between consecutive right angle brackets (use '> >')`

Bug fixes:

* [Issue 3](https://github.com/PlotPyStack/PlotPy/issues/3) - `PlotWidget`: `ZeroDivisionError` on resize while ignoring constraints
* [Issue 4](https://github.com/PlotPyStack/PlotPy/issues/4) - Average cross section: `RuntimeWarning: Mean of empty slice.`
* [Issue 5](https://github.com/PlotPyStack/PlotPy/issues/5) - Contrast panel: levels histogram is sometimes not updated
* [Issue 6](https://github.com/PlotPyStack/PlotPy/issues/6) - 1D Histogram items are not properly drawn
* [Issue 7](https://github.com/PlotPyStack/PlotPy/issues/7) - Contrast panel: histogram may contains zeros periodically due to improper bin sizes
* [Issue 8](https://github.com/PlotPyStack/PlotPy/issues/8) - Contrast panel: switch back to default tool after selecting min/max

Bug fixes:

* Fixed `plotpy.tools.AnnotatedEllipseTool`: `AttributeError` when finalizing the shape
* `plotpy.widgets.select_with_shape_tool`: added missing `toolbar` and `options` parameters
* `items.XRangeSelection` is now serializable, as expected

Documentation:

* `plotpy.plot.SyncPlotWindow`: added missing documentation
* Added more information on PlotPyStack
* New "Motivation" section explaining the reasons behind the creation of PlotPy

* Handled all Cython/C++ extensions compilation warnings
* Fixed all NumPy deprecation issues (e.g. `numpy.matrix`)
* Fixed (annotated) circle/ellipse item creation/test
* Fixed all documentation build warnings
* Fixed regressions introduced by PlotPy V1 on top of guiqwt:
* Global references for the Debian package management
* Major aspect ratio issues:
* When resizing the plot widget (images were downsized indefinitely)
* When auto-scaling the plot widget (images were not displayed entirely)
* `TrImageItem` rotation algorithm
* Oblique cross-section test
* About dialog, version informations
* Ported all [guiqwt](https://pypi.org/project/guiqwt/) bug fixes since the merge (i.e. between 2016 and 2023):
* Added support for Visual Studio 2015 and earlier
* Speeding-up image alpha channel calculation
* Optimized colormap icon caching
* X-axis direction and auto-scale
* Added load test (with a very large number of plot widgets)
* Coordinates inversion in `EllipseShape`
* ValueError with levels histogram
* Various fixes regarding plot item creation, cross-section features, PyQt5 support, DICOM support, TIFF support, etc.
* Etc.

This version is the first release of the 2.0 series, which is distributed under the [BSD 3-Clause License](https://opensource.org/licenses/BSD-3-Clause).

PlotPy 2.0 is a major release that brings a lot of new features and bug fixes.

When initiated in 2016, PlotPy 1.0 was the result of the merge of two projects (as well as some other changes, e.g. a redesign of the API):

* [guidata](https://pypi.org/project/guidata/), a Python library generating graphical user interfaces for easy dataset editing and display
* [guiqwt](https://pypi.org/project/guiqwt/), a Python library providing efficient 2D data-plotting features (curve/image visualization and related tools) for interactive computing and signal/image processing application development

With PlotPy 2.0, the [guidata](https://pypi.org/project/guidata/) code base has been reextracted: PlotPy now relies on [guidata](https://pypi.org/project/guidata/) as a dependency, like before the merge.

PlotPy 2.0 also integrates all the bug fixes (>30) and new features that were added to [guiqwt](https://pypi.org/project/guiqwt/) since the merge (i.e. between 2016 and 2023).

Supported versions of Python and Qt bindings have been updated:

* Python: 3.8, 3.9, and 3.10 (3.11 should work too, but will be officially supported when dropping support for Python 3.8, to keep a 3-year support period)
* Qt bindings: PyQt5 (even if PyQt6 and PySide6 are not officially supported, efforts have been made and will continue to be made to support them)