Version 2.10

PlotPy Version 2.10.0

✨ New features:

  • Per-axis autoscale strategy: Added configurable autoscale behavior for each axis via the axis parameters dialog. Three strategies are available: Auto (default — compute bounds from items), Fixed range (apply user-defined Min/Max values) and Disabled (leave the axis untouched on autoscale). New API: BasePlot.set_axis_autoscale_strategy() / BasePlot.get_axis_autoscale_strategy() (closes Issue #63, partial)

  • Symbol border width: Added an edgewidth parameter to SymbolParam for customizable marker border thickness — previously the border was always 1 pixel wide

🛠️ Bug fixes:

  • Rectangular snapshot tool — Fixed the “Original size” computation (closes Issue #57):

    • The preview no longer displays negative dimensions when the X or Y axis is reversed

    • The “Original size” is now computed from pixel coordinates instead of axis units, so it is correct for XYImageItem (and any item with non-uniform axis scaling) regardless of axis orientation

    • The ValueError raised by the resize dialog when the selection produced negative dimensions on a reversed axis is gone

    • Selecting a region larger than the plotted image now reports the same native pixel resolution for both ImageItem and XYImageItem (previously XYImageItem reported shape - 1 while ImageItem reported the full oversized resolution): exporting at “Original size” now consistently preserves the source pixel density and avoids upsampling, regardless of the item type

  • Snapshot tool cursor — Fixed the mouse cursor remaining stuck as a cross (+) outside the plot canvas (axes, toolbar) after using the snapshot tool. The modal dialogs are now opened after Qt has released the implicit pointer grab, so the cursor is correctly restored (closes Issue #58)

  • Z-axis log tool — Fixed the ZAxisLogTool being always disabled for non-ImageItem image types (XYImageItem, MaskedImageItem, MaskedXYImageItem, TrImageItem, RGBImageItem). The Z-axis log API (get_zaxis_log_state / set_zaxis_log_state) was moved from ImageItem up to BaseImageItem so all image item types support it. This notably fixes the tool being permanently greyed out in DataLab’s image panel (closes Issue #59)

  • Z-axis log data update — Fixed image data not being recomputed when calling set_data() while Z-axis log scale is active — the log-transformed data is now refreshed and the LUT range preserved in log mode

  • YRangeCursorTool — Fixed incorrect inequality display and negative ∆y when the Y-range cursors are inverted (dragging the top cursor below the bottom one). Values are now sorted and ∆y is always positive (closes Issue #55)

  • CurveStatsTool — Replaced min/max/mean/std/sum with their NaN-safe equivalents (nanmin, nanmax, nanmean, nanstd, nansum) so that signal statistics are computed correctly when the data contains NaN values

⚙️ Dependencies:

  • Bumped minimum PythonQwt version from 0.15 to 0.16 to benefit from the Qt6 performance optimizations (closes Issue #22 — see PythonQwt#93 for the full optimization log)