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matplotlib/matplotlib: REL: v3.4.0

Thomas A Caswell; Michael Droettboom; Antony Lee; Elliott Sales de Andrade; John Hunter; Tim Hoffmann; Eric Firing; Jody Klymak; David Stansby; Nelle Varoquaux; Jens Hedegaard Nielsen; Benjamin Root; Ryan May; Phil Elson; Jouni K. Seppänen; Darren Dale; Jae-Joon Lee; Damon McDougall; Andrew Straw; Paul Hobson; Christoph Gohlke; Tony S Yu; Eric Ma; hannah; Adrien F. Vincent; Steven Silvester; Charlie Moad; Nikita Kniazev; Elan Ernest; Paul Ivanov

Highlights of this release include:

  • Figure and Axes creation / management
    • New subfigure functionality
    • Single-line string notation for subplot_mosaic
    • Changes to behavior of Axes creation methods (gca, add_axes, add_subplot)
    • add_subplot/add_axes gained an axes_class parameter
    • Subplot and subplot2grid can now work with constrained layout
  • Plotting methods
    • axline supports transform parameter
    • New automatic labeling for bar charts
    • A list of hatches can be specified to bar and barh
    • Setting BarContainer orientation
    • Contour plots now default to using ScalarFormatter
    • Axes.errorbar cycles non-color properties correctly
    • errorbar errorevery parameter matches markevery
    • hexbin supports data reference for C parameter
    • Support callable for formatting of Sankey labels
    • Axes.spines access shortcuts
    • New stairs method and StepPatch artist
    • Added orientation parameter for stem plots
    • Angles on Bracket arrow styles
    • TickedStroke patheffect
  • Colors and colormaps
    • Collection color specification and mapping
    • Transparency (alpha) can be set as an array in collections
    • pcolormesh has improved transparency handling by enabling snapping
    • IPython representations for Colormap objects
    • Colormap.set_extremes and Colormap.with_extremes
    • Get under/over/bad colors of Colormap objects
    • New cm.unregister_cmap function
    • New CenteredNorm for symmetrical data around a center
    • New FuncNorm for arbitrary normalizations
    • GridSpec-based colorbars can now be positioned above or to the left of the main axes
  • Titles, ticks, and labels
    • supxlabel and supylabel
    • Shared-axes subplots tick label visibility is now correct for top or left labels
    • An iterable object with labels can be passed to Axes.plot
  • Fonts and Text
    • Text transform can rotate text direction
    • matplotlib.mathtext now supports overset and underset LaTeX symbols
    • math_fontfamily parameter to change Text font family
    • TextArea/AnchoredText support horizontalalignment
    • PDF supports URLs on Text artists
  • rcParams improvements
    • New rcParams for dates: set converter and whether to use interval_multiples
    • Date formatters now respect usetex rcParam
    • Setting image.cmap to a Colormap
    • Tick and tick label colors can be set independently using rcParams
  • 3D Axes improvements
    • Errorbar method in 3D Axes
    • Stem plots in 3D Axes
    • 3D Collection properties are now modifiable
    • Panning in 3D Axes
  • Interactive tool improvements
    • New RangeSlider widget
    • Sliders can now snap to arbitrary values
    • Pausing and Resuming Animations
  • Sphinx extensions
    • plot_directive caption option
  • Backend-specific improvements
    • Consecutive rasterized draws now merged
    • Support raw/rgba frame format in FFMpegFileWriter
    • nbAgg/WebAgg support middle-click and double-click
    • nbAgg support binary communication
    • Indexed color for PNG images in PDF files when possible
    • Improved font subsettings in PDF/PS
    • Kerning added to strings in PDFs
    • Fully-fractional HiDPI in QtAgg
    • wxAgg supports fullscreen toggle

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matplotlib/matplotlib-v3.4.0.zip
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