Version 2.7

PlotPy Version 2.7.5 (2025-07-15)

🛠️ Bug fixes:

• Issue #44 - Incorrect calculation method for “∑(y)” in CurveStatsTool: replaced spt.trapezoid with np.sum, which is more consistent with the summation operation

• Fix update_status method in all cross-section tools (intensity profile tools):

  • Use get_items instead of get_selected_items to retrieve the image items

  • This allows the tools to work properly when no image item is selected, but there are image items in the plot

  • This closes Issue #47 - Intensity profile tools do not work when no image item is selected

Other changes:

• Updated guidata dependency to V3.10.0

• Using new guidata translation utility based on babel

• Development environment:

  • Historically, the default Python interpreter for development was handled by the PPSTACK_PYTHONEXE environment variable, for example to run VS Code tasks with the correct Python interpreter.

  • This approach has been replaced by relying on the virtual environment management as provided by VS Code itself, which is more standard and compatible with various tools.

PlotPy Version 2.7.4 (2025-04-26)

In this release, test coverage is 80%.

🛠️ Bug fixes:

• Issue #42 - Image profiles: when moving/resizing image, profile plots are not refreshed

• Issue #41 - Average profile visualization: empty profile is displayed when the target rectangular area is outside the image area

PlotPy Version 2.7.3 (2025-04-05)

In this release, test coverage is 80%.

🛠️ Bug fixes:

• Issue #40 - Z-axis logarithmic scale (ZAxisLogTool tool) is not compatible with anti-aliasing interpolation

• Fix intersection check for destination rectangle in XYImageFilterItem

• Issue #36 - Image items are not properly scaling along Y-axis with logarithmic scale:

  • Actually, image items do not support non-linear scales (this is an historical limitation)

  • This is not documented at all, so we’ve added an explicit warning: a red colored message is displayed at the center of the image frame when any non-linear scale is applied to either X or Y axis

  • When dealing with non-linear scales, PlotPy provides an alternative solution: the user may rely on XYImageItem (e.g. by using make.xyimage) as this item supports arbitrary X and Y pixel coordinates

• Issue #34 - ValueError when trying to plot 2D histogram items with PyQt6

Other changes:

• Replace deprecated icon files with new SVG icons for selection tools

PlotPy Version 2.7.2 (2025-02-14)

🛠️ Bug fixes:

• Issue #32 - Plot item list panel’s parameters dialog box is empty for non-selectable items

• Issue #30 - handle_final_shape_cb argument doesn’t work on MultilineTool, PolygonTool, AnnotatedPolygonTool

PlotPy Version 2.7.1 (2025-01-15)

🛠️ Bug fixes:

• Fixed update canvasRect type to QRectF for intersection checks in CircleSVGShape, following this bug fix in PythonQwt V0.14.4

• Fixed regression with respect to guiqwt regarding plot items instantiation:

  • guiqwt was allowing to instantiate plot items without needing to create a QApplication instance (no GUI event loop was required)

  • This was not the case with plotpy, so that it was not possible -for example- to serialize/deserialize plot items to JSON without creating a QApplication instance

  • This has been fixed by removing the QIcon instantiation from the plot items constructors (call to QwtPlotItem.setIcon method). Note that -in the meantime- QwtPlotItem.setIcon and QwtPlotItem.icon methods have also been removed in PythonQwt V0.14.3. Code relying on this feature should thus be updated to use the new get_icon_name method instead, i.e. get_icon(item.get_icon_name()) instead of item.icon().

• Issue #26 - Item list panel should not allow to select a non-selectable item

PlotPy Version 2.7.0 (2024-11-07)

Supported versions of Python have been updated (drop support for Python 3.8, add support for Python 3.13):

• PlotPy < 2.7.0: Python 3.8, 3.9, 3.10, 3.11 and 3.12

• PlotPy >= 2.7.0: Python 3.9, 3.10, 3.11, 3.12 and 3.13

Other dependencies have been updated:

• Updated versions to those available at the time of the release of the oldest supported Python version (3.9)

• Exception: Cython 3.0 is required for Python 3.13

💥 New features / Enhancements:

• Added AnnotatedPolygon annotation to items

• Added make.annotated_polygon function to plotpy.builder module

• Customization of annotation information:

  • Added info_callback argument to all annotation class constructors

  • Added set_info_callback method to all annotation classes

  • The info_callback is a function that takes the annotation object and returns a string with the information to display

  • Default info_callback is redirected to the get_info method of the annotation object (this makes the feature backward compatible)

🛠️ Bug fixes:

• Fixed pydicom support: use dcmread instead of read_file to read DICOM files