v2.3.5

Version 2.3.5

This release is mainly intended to fix the Windows binary distribution, which was not
supporting NumPy 2.0.

🛠️ Bug fixes:

• Moved back conftest.py to the tests folder (was in the root folder), so that
  pytest can be executed with proper configuration when running the test suite
  from the installed package

• Removed benchmarks from automated test suite (not relevant for the end user):
  added plotpy-benchmarks script to run the benchmarks

v2.3.4

Version 2.3.4

In this release, test coverage is 79%.

🛠️ Bug fixes:

• Add support for NumPy 2.0:

  • Updated build system to use NumPy 2.0 on Python > 3.8 and NumPy 1 on Python 3.8
  • Use numpy.asarray instead of numpy.array(..., copy=False)
  • Use numpy.isin instead of numpy.in1d
  • Use scipy.integrate.trapezoid instead of numpy.trapz

• ColorMapManager: fix segmentation fault with PySide6 on Linux

v2.3.3

Version 2.3.3

In this release, test coverage is 79%.

🛠️ Bug fixes:

• Moved up LineCrossSection import for consistency with other cross-section panels
• Unexpected behavior regarding io.load_items and io.save_items functions:
  • Those functions were serializing and deserializing most of the parameters of the
    plot items, but not their visibility state
  • This is now fixed: the visibility state of the plot items is now saved and restored
    as expected

ℹ️ Other changes:

• Explicitely exclude NumPy V2 from the dependencies (not compatible yet)

v2.3.2

Version 2.3.2

In this release, test coverage is 79%.

Version 2.3.2 fixes a blocking issue with the colormap editor unit test introduced
in version 2.3.1. The latter is a fugitive release that was not announced.

💥 New features / Enhancements:

• Colormap: added "Apply" button to the colormap manager
• Automated test suite:
  • Test coverage has been improved from 75% to 79%
  • The following features are now covered by unit tests:
    • Panning with the mouse move events
    • Zooming with the mouse wheel/move events
    • Curve statistics tool
    • Image rotation and translations via SelectTool (simulating mouse events)
    • Masked areas in images and ImageMaskTool
    • LockTrImageTool
    • Cursor tools (HCursorTool, VCursorTool, XCursorTool and HRangeTool)
    • DisplayCoordsTool: simulation of 'Alt' and 'Ctrl' keys
    • Complete coverage for MultiLineTool and FreeFormTool
    • Selection tools (RectangularSelectionTool and SelectTool)

🛠️ Bug fixes:

• Image statistics tool: fixed "No available data" message when the tool rectangular
  region top Y coordinate is above the image top Y coordinate
• Label items (LabelItem, LegendBoxItem, DataInfoLabel, ...) were not emitting
  the SIG_ITEM_MOVED signal when moved interactively (with the mouse) if the item
  anchor was attached to the canvas
• Colormap: fixed context menu entry update (colormap icon was updated as expected, but
  the colormap name was not)
• Rotate/crop dialog: added missing toolbar on plot widget
• Flip/rotate dialog: added missing toolbar on plot widget
• Fixed issue with oblique averaged cross section computation (AttributeError when
  clicking on the empty cross section plot)

Version 2.3.0

In this release, test coverage is 75%.

💥 New features:

• Added support for colormap inversion:
  • The user can now invert the colormap of an image item:
    • From the image parameters dialog ("Invert colormap" checkbox)
    • From the plot context menu (right-click on the image item)
  • BaseImageItem.set_color_map method takes a new invert parameter (which
    defaults to None, meaning that the behavior is unchanged)
  • New ReverseColormapTool: registered by default in the plot widget, like the
    ColormapTool (add the "Invert colormap" entry in the context menu of the image)

🛠️ Bug fixes:

• ErrorBarCurveItem: fixed NumPy deprecation warning
  ("Conversion of an array with ndim > 0 to a scalar is deprecated [...]")

ℹ️ Other changes:

• Image plot items deserialization:
  • When an image plot item is deserialized, and needs to be reloaded from a file,
    the file path is adapted to the current working directory if file is not found
    (this is the legacy behavior).
  • An unnecessary call to ImageIOHandler.adapt_path method was removed from the
    RawImageItem.deserialize method: this issue has to be handled by the host
    application, not by the PlotPy library.
  • ImageIOHandler: removed add_change_path and adapt_path methods
• Fix typo in tests.features.test_colormap_editor module: renamed function
  test_colormap_manager to test_colormap_editor
• Removed unnecessary BaseImageItem.get_color_map_name method

v2.3.1

Version 2.3.1

In this release, test coverage is 79%.

💥 New features / Enhancements:

• Colormap: added "Apply" button to the colormap manager
• Automated test suite:
  • Test coverage has been improved from 75% to 79%
  • The following features are now covered by unit tests:
    • Panning with the mouse move events
    • Zooming with the mouse wheel/move events
    • Curve statistics tool
    • Image rotation and translations via SelectTool (simulating mouse events)
    • Masked areas in images and ImageMaskTool
    • LockTrImageTool
    • Cursor tools (HCursorTool, VCursorTool, XCursorTool and HRangeTool)
    • DisplayCoordsTool: simulation of 'Alt' and 'Ctrl' keys
    • Complete coverage for MultiLineTool and FreeFormTool
    • Selection tools (RectangularSelectionTool and SelectTool)

🛠️ Bug fixes:

• Image statistics tool: fixed "No available data" message when the tool rectangular
  region top Y coordinate is above the image top Y coordinate
• Label items (LabelItem, LegendBoxItem, DataInfoLabel, ...) were not emitting
  the SIG_ITEM_MOVED signal when moved interactively (with the mouse) if the item
  anchor was attached to the canvas
• Colormap: fixed context menu entry update (colormap icon was updated as expected, but
  the colormap name was not)
• Rotate/crop dialog: added missing toolbar on plot widget
• Flip/rotate dialog: added missing toolbar on plot widget
• Fixed issue with oblique averaged cross section computation (AttributeError when
  clicking on the empty cross section plot)

Version 2.3.0

In this release, test coverage is 75%.

💥 New features:

• Added support for colormap inversion:
  • The user can now invert the colormap of an image item:
    • From the image parameters dialog ("Invert colormap" checkbox)
    • From the plot context menu (right-click on the image item)
  • BaseImageItem.set_color_map method takes a new invert parameter (which
    defaults to None, meaning that the behavior is unchanged)
  • New ReverseColormapTool: registered by default in the plot widget, like the
    ColormapTool (add the "Invert colormap" entry in the context menu of the image)

🛠️ Bug fixes:

• ErrorBarCurveItem: fixed NumPy deprecation warning
  ("Conversion of an array with ndim > 0 to a scalar is deprecated [...]")

ℹ️ Other changes:

• Image plot items deserialization:
  • When an image plot item is deserialized, and needs to be reloaded from a file,
    the file path is adapted to the current working directory if file is not found
    (this is the legacy behavior).
  • An unnecessary call to ImageIOHandler.adapt_path method was removed from the
    RawImageItem.deserialize method: this issue has to be handled by the host
    application, not by the PlotPy library.
  • ImageIOHandler: removed add_change_path and adapt_path methods
• Fix typo in tests.features.test_colormap_editor module: renamed function
  test_colormap_manager to test_colormap_editor
• Removed unnecessary BaseImageItem.get_color_map_name method

v2.3.0

In this release, test coverage is 75%.

💥 New features:

• Added support for colormap inversion:
  • The user can now invert the colormap of an image item:
    • From the image parameters dialog ("Invert colormap" checkbox)
    • From the plot context menu (right-click on the image item)
  • BaseImageItem.set_color_map method takes a new invert parameter (which
    defaults to None, meaning that the behavior is unchanged)
  • New ReverseColormapTool: registered by default in the plot widget, like the
    ColormapTool (add the "Invert colormap" entry in the context menu of the image)

🛠️ Bug fixes:

• ErrorBarCurveItem: fixed NumPy deprecation warning
  ("Conversion of an array with ndim > 0 to a scalar is deprecated [...]")

ℹ️ Other changes:

• Image plot items deserialization:
  • When an image plot item is deserialized, and needs to be reloaded from a file,
    the file path is adapted to the current working directory if file is not found
    (this is the legacy behavior).
  • An unnecessary call to ImageIOHandler.adapt_path method was removed from the
    RawImageItem.deserialize method: this issue has to be handled by the host
    application, not by the PlotPy library.
  • ImageIOHandler: removed add_change_path and adapt_path methods
• Fix typo in tests.features.test_colormap_editor module: renamed function
  test_colormap_manager to test_colormap_editor
• Removed unnecessary BaseImageItem.get_color_map_name method

v2.2.0

Version 2.2.0

In this release, test coverage is 75%.

New features:

• Added SIG_ITEM_PARAMETERS_CHANGED signal to BasePlot class:
  • This signal is emitted when the parameters of an item are changed using the
    parameters dialog, or a specific tool (e.g. the colormap selection tool,
    or the lock/unlock tool for image items)
  • This signal is emitted with the item as argument
  • It is often emitted before the SIG_ITEMS_CHANGED signal, which is global to all
    items, but not necessarily. For example, when the colormap of an image is changed,
    the SIG_ITEM_PARAMETERS_CHANGED signal is emitted for the image item, but the
    SIG_ITEMS_CHANGED signal is not emitted.
• Added new colormap presets:
  • viridis, plasma, inferno, magma, cividis
  • afmhot
  • coolwarm, bwr, seismic
  • gnuplot2, CMRmap, rainbow, turbo
• Fixed all qualitative colormaps:
  • All qualitative colormaps have been re-computed because they are not supposed to be
    interpolated, which was the case and made them unusable
  • The qualitative colormaps are now usable and look like the ones from Matplotlib
• Colormap manager:
  • Added a button to remove a custom colormap
  • The preset colormaps and the currently selected colormap are read-only
• Added automatic unit tests for interactive tools:
  • AnnotatedCircleTool, AnnotatedEllipseTool, AnnotatedObliqueRectangleTool,
    AnnotatedPointTool, AnnotatedRectangleTool, AnnotatedSegmentTool
  • AverageCrossSectionTool, CrossSectionTool, ObliqueCrossSectionTool,
    LineCrossSectionTool
  • EditPointTool, SelectPointsTool, SelectPointTool
  • AspectRatioTool, ImageStatsTool, SnapshotTool
  • DisplayCoordsTool, RectZoomTool
  • CircleTool, EllipseTool, FreeFormTool, MultiLineTool,
    ObliqueRectangleTool, PointTool, RectangleTool, SegmentTool
• Internal package reorganization: moved icons to plotpy/data/icons folder

v2.1.2

Version 2.1.2

New features:

• Added Echelon alpha function to the image parameters:
  • The Echelon alpha function is a step function, so that the alpha channel is
    0 (full transparency) for the lowest value of the Lookup Table (LUT) and opaque
    (transparency level set by the Global alpha parameter) for the other values
  • This feature is added to the other existing alpha functions: Constant, Linear,
    Sigmoid, and Hyperbolic tangent

Bug fixes:

• Compatibility with PythonQwt 0.12.

Version 2.1.1

Bug fixes:

• API breakage (unintentional) in V2.1.0:
  • In V2.1.0, mathutils.colormap module was renamed to mathutils.colormaps
  • Original mathutils.colormap module naming is restored in this release
• Colormap selection from the toolbar was not triggering the SIG_ITEMS_CHANGED signal
  (every time an item parameter is changed, the SIG_ITEMS_CHANGED signal has to be
  emitted by the BasePlot instance to notify the application that the plot has been
  modified)

Version 2.1.0

In this release, test coverage is 71%.

New features:

• Curve-related features:
  • New tools.SelectPointsTool to select graphically multiple points on a plot
  • New tools.EditPointTool to edit graphically the position of a point on a plot
  • New downsampling feature:
    • The user may enable it to reduce the number of points displayed on a curve
      (e.g. when the curve is too dense)
    • The downsampling factor is adjustable
      (default to 10, i.e. 1 point out of 10 is displayed)
    • The feature is disabled by default
• Image-related features:
  • New "Colormap Manager":
    • Before this release, the colormap selection was limited to presets (e.g. "gray",
      "jet", etc.)
    • Now, the user can select a preset, edit it, or create a new one from scratch
      thanks to the new "Colormap Manager" dialog
  • New line cross section feature:
    • Before this release, the cross section feature was limited to either horizontal
      or vertical lines, or an average cross section withing a rectangle (aligned with
      the axes, or oblique)
    • Now, the user can draw a line cross section with the new "Line Cross Section"
      tool: the intensity profile associated to the drawn segment is displayed in a
      dedicated plot
• Added support for gestures:
  • Zooming in/out with the a two-finger pinch gesture
  • Panning with a two-finger drag gesture

Documentation:

• Reorganized some sections
• Added sections on new features

Bug fixes:

• Fixed critical bug in oblique cross section feature (regression introduced in 2.0.0)
• Removed dependency to pytest-qt for the test suite (due to Qt6 compatibility issues)

v2.1.1

Version 2.1.1

Bug fixes:

• API breakage (unintentional) in V2.1.0:
  • In V2.1.0, mathutils.colormap module was renamed to mathutils.colormaps
  • Original mathutils.colormap module naming is restored in this release
• Colormap selection from the toolbar was not triggering the SIG_ITEMS_CHANGED signal
  (every time an item parameter is changed, the SIG_ITEMS_CHANGED signal has to be
  emitted by the BasePlot instance to notify the application that the plot has been
  modified)

Version 2.1.0

In this release, test coverage is 71%.

New features:

• Curve-related features:
  • New tools.SelectPointsTool to select graphically multiple points on a plot
  • New tools.EditPointTool to edit graphically the position of a point on a plot
  • New downsampling feature:
    • The user may enable it to reduce the number of points displayed on a curve
      (e.g. when the curve is too dense)
    • The downsampling factor is adjustable
      (default to 10, i.e. 1 point out of 10 is displayed)
    • The feature is disabled by default
• Image-related features:
  • New "Colormap Manager":
    • Before this release, the colormap selection was limited to presets (e.g. "gray",
      "jet", etc.)
    • Now, the user can select a preset, edit it, or create a new one from scratch
      thanks to the new "Colormap Manager" dialog
  • New line cross section feature:
    • Before this release, the cross section feature was limited to either horizontal
      or vertical lines, or an average cross section withing a rectangle (aligned with
      the axes, or oblique)
    • Now, the user can draw a line cross section with the new "Line Cross Section"
      tool: the intensity profile associated to the drawn segment is displayed in a
      dedicated plot
• Added support for gestures:
  • Zooming in/out with the a two-finger pinch gesture
  • Panning with a two-finger drag gesture

Documentation:

• Reorganized some sections
• Added sections on new features

Bug fixes:

• Fixed critical bug in oblique cross section feature (regression introduced in 2.0.0)
• Removed dependency to pytest-qt for the test suite (due to Qt6 compatibility issues)

v2.1.0

Version 2.1.0

In this release, test coverage is 71%.

New features:

• Curve-related features:
  • New tools.SelectPointsTool to select graphically multiple points on a plot
  • New tools.EditPointTool to edit graphically the position of a point on a plot
  • New downsampling feature:
    • The user may enable it to reduce the number of points displayed on a curve
      (e.g. when the curve is too dense)
    • The downsampling factor is adjustable
      (default to 10, i.e. 1 point out of 10 is displayed)
    • The feature is disabled by default
• Image-related features:
  • New "Colormap Manager":
    • Before this release, the colormap selection was limited to presets (e.g. "gray",
      "jet", etc.)
    • Now, the user can select a preset, edit it, or create a new one from scratch
      thanks to the new "Colormap Manager" dialog
  • New line cross section feature:
    • Before this release, the cross section feature was limited to either horizontal
      or vertical lines, or an average cross section withing a rectangle (aligned with
      the axes, or oblique)
    • Now, the user can draw a line cross section with the new "Line Cross Section"
      tool: the intensity profile associated to the drawn segment is displayed in a
      dedicated plot
• Added support for gestures:
  • Zooming in/out with the a two-finger pinch gesture
  • Panning with a two-finger drag gesture

Documentation:

• Reorganized some sections
• Added sections on new features

Bug fixes:

• Fixed critical bug in oblique cross section feature (regression introduced in 2.0.0)
• Removed dependency to pytest-qt for the test suite (due to Qt6 compatibility issues)