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<li class="toctree-l2"><a class="reference internal" href="../lines_bars_and_markers/timeline.html">Timeline with lines, dates, and text</a></li>
<li class="toctree-l2"><a class="reference internal" href="../lines_bars_and_markers/vline_hline_demo.html">hlines and vlines</a></li>
<li class="toctree-l2"><a class="reference internal" href="../lines_bars_and_markers/xcorr_acorr_demo.html">Cross- and auto-correlation</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../images_contours_and_fields/index.html">Images, contours and fields</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/affine_image.html">Affine transform of an image</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/barb_demo.html">Wind barbs</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/barcode_demo.html">Barcode</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/colormap_interactive_adjustment.html">Interactive adjustment of colormap range</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/colormap_normalizations.html">Colormap normalizations</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/colormap_normalizations_symlognorm.html">Colormap normalizations SymLogNorm</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contour_corner_mask.html">Contour corner mask</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contour_demo.html">Contour Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contour_image.html">Contour image</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contour_label_demo.html">Contour Label Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contourf_demo.html">Contourf demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contourf_hatching.html">Contourf hatching</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contourf_log.html">Contourf and log color scale</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/contours_in_optimization_demo.html">Contouring the solution space of optimizations</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/demo_bboximage.html">BboxImage Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/figimage_demo.html">Figimage Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_annotated_heatmap.html">Annotated heatmap</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_antialiasing.html">Image resampling</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_clip_path.html">Clipping images with patches</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_demo.html">Many ways to plot images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_exact_placement.html">Placing images, preserving relative sizes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_masked.html">Image with masked values</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_nonuniform.html">Image nonuniform</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_transparency_blend.html">Blend transparency with color in 2D images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/image_zcoord.html">Modifying the coordinate formatter</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/interpolation_methods.html">Interpolations for imshow</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/irregulardatagrid.html">Contour plot of irregularly spaced data</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/layer_images.html">Layer images with alpha blending</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/matshow.html">Visualize matrices with matshow</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/multi_image.html">Multiple images with one colorbar</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/pcolor_demo.html">pcolor images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/pcolormesh_grids.html">pcolormesh grids and shading</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/pcolormesh_levels.html">pcolormesh</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/plot_streamplot.html">Streamplot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/quadmesh_demo.html">QuadMesh Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/quiver_demo.html">Advanced quiver and quiverkey functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/quiver_simple_demo.html">Quiver Simple Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/shading_example.html">Shading example</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/specgram_demo.html">Spectrogram</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/spy_demos.html">Spy Demos</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/tricontour_demo.html">Tricontour Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/tricontour_smooth_delaunay.html">Tricontour Smooth Delaunay</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/tricontour_smooth_user.html">Tricontour Smooth User</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/trigradient_demo.html">Trigradient Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/triinterp_demo.html">Triinterp Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/tripcolor_demo.html">Tripcolor Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/triplot_demo.html">Triplot Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../images_contours_and_fields/watermark_image.html">Watermark image</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../subplots_axes_and_figures/index.html">Subplots, axes and figures</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/align_labels_demo.html">Align labels and titles</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/auto_subplots_adjust.html">Programmatically control subplot adjustment</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axes_box_aspect.html">Axes box aspect</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axes_demo.html">Axes Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axes_margins.html">Controlling view limits using margins and sticky_edges</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axes_props.html">Axes properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axes_zoom_effect.html">Axes zoom effect</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axhspan_demo.html">Draw regions that span an Axes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axis_equal_demo.html">Equal axis aspect ratio</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/axis_labels_demo.html">Axis label position</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/broken_axis.html">Broken axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/custom_figure_class.html">Custom Figure subclasses</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/demo_constrained_layout.html">Resize Axes with constrained layout</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/demo_tight_layout.html">Resize Axes with tight layout</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/fahrenheit_celsius_scales.html">Different scales on the same Axes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/figure_size_units.html">Figure size in different units</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/figure_title.html">Figure labels: suptitle, supxlabel, supylabel</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/ganged_plots.html">Adjacent subplots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/geo_demo.html">Geographic Projections</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/gridspec_and_subplots.html">Combine two subplots using subplots and GridSpec</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/gridspec_customization.html">GridSpec with variable sizes and spacing</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/gridspec_multicolumn.html">Gridspec for multi-column/row subplot layouts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/gridspec_nested.html">Nested Gridspecs</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/invert_axes.html">Inverted axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/multiple_figs_demo.html">Manage multiple figures in pyplot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/secondary_axis.html">Secondary Axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/share_axis_lims_views.html">Share axis limits and views</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/shared_axis_demo.html">Shared axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/subfigures.html">Figure subfigures</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/subplot.html">Multiple subplots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/subplot2grid.html">subplot2grid</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/subplots_adjust.html">Subplots spacings and margins</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/subplots_demo.html">Create multiple subplots using <code class="docutils literal notranslate"><span class="pre">plt.subplots</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/two_scales.html">Plots with different scales</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subplots_axes_and_figures/zoom_inset_axes.html">Zoom region inset Axes</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../statistics/index.html">Statistics</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../statistics/boxplot.html">Artist customization in box plots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/boxplot_color.html">Box plots with custom fill colors</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/boxplot_demo.html">Boxplots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/boxplot_vs_violin.html">Box plot vs. violin plot comparison</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/bxp.html">Separate calculation and plotting of boxplots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/confidence_ellipse.html">Plot a confidence ellipse of a two-dimensional dataset</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/customized_violin.html">Violin plot customization</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/errorbar.html">Errorbar function</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/errorbar_features.html">Different ways of specifying error bars</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/errorbar_limits.html">Including upper and lower limits in error bars</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/errorbars_and_boxes.html">Create boxes from error bars using PatchCollection</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/hexbin_demo.html">Hexagonal binned plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/hist.html">Histograms</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/histogram_bihistogram.html">Bihistogram</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/histogram_cumulative.html">Cumulative distributions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/histogram_histtypes.html">Demo of the histogram function's different <code class="docutils literal notranslate"><span class="pre">histtype</span></code> settings</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/histogram_multihist.html">The histogram (hist) function with multiple data sets</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/histogram_normalization.html">Histogram bins, density, and weight</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/multiple_histograms_side_by_side.html">Multiple histograms side by side</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/time_series_histogram.html">Time Series Histogram</a></li>
<li class="toctree-l2"><a class="reference internal" href="../statistics/violinplot.html">Violin plot basics</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../pie_and_polar_charts/index.html">Pie and polar charts</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/pie_features.html">Pie charts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/bar_of_pie.html">Bar of pie</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/nested_pie.html">Nested pie charts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/pie_and_donut_labels.html">A pie and a donut with labels</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/polar_bar.html">Bar chart on polar axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/polar_demo.html">Polar plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/polar_error_caps.html">Error bar rendering on polar axis</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/polar_legend.html">Polar legend</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pie_and_polar_charts/polar_scatter.html">Scatter plot on polar axis</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../text_labels_and_annotations/index.html">Text, labels and annotations</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/accented_text.html">Accented text</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/angle_annotation.html">Scale invariant angle label</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/angles_on_bracket_arrows.html">Angle annotations on bracket arrows</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/annotate_transform.html">Annotate transform</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/annotation_basic.html">Annotating a plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/annotation_demo.html">Annotate plots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/annotation_polar.html">Annotate polar plots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/arrow_demo.html">Arrow Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/autowrap.html">Auto-wrap text</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/custom_legends.html">Compose custom legends</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/date.html">Date tick labels</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/demo_annotation_box.html">AnnotationBbox demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/demo_text_path.html">Using a text as a Path</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/demo_text_rotation_mode.html">Text rotation mode</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/dfrac_demo.html">The difference between \dfrac and \frac</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/engineering_formatter.html">Format ticks using engineering notation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/fancyarrow_demo.html">Annotation arrow style reference</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/fancytextbox_demo.html">Styling text boxes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/figlegend_demo.html">Figure legend demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/font_family_rc.html">Configure the font family</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/font_file.html">Using ttf font files</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/font_table.html">Font table</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/fonts_demo.html">Fonts demo (object-oriented style)</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/fonts_demo_kw.html">Fonts demo (keyword arguments)</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/label_subplots.html">Labelling subplots</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/legend.html">Legend using pre-defined labels</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/legend_demo.html">Legend Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/line_with_text.html">Artist within an artist</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/mathtext_asarray.html">Convert texts to images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/mathtext_demo.html">Mathtext</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/mathtext_examples.html">Mathematical expressions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/mathtext_fontfamily_example.html">Math fontfamily</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/multiline.html">Multiline</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/placing_text_boxes.html">Placing text boxes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/rainbow_text.html">Concatenate text objects with different properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/stix_fonts_demo.html">STIX Fonts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/tex_demo.html">Render math equations using TeX</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/text_alignment.html">Text alignment</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/text_commands.html">Text properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/text_fontdict.html">Controlling style of text and labels using a dictionary</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/text_rotation_relative_to_line.html">Text rotation angle in data coordinates</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/titles_demo.html">Title positioning</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/unicode_minus.html">Unicode minus</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/usetex_baseline_test.html">Usetex text baseline</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/usetex_fonteffects.html">Usetex font effects</a></li>
<li class="toctree-l2"><a class="reference internal" href="../text_labels_and_annotations/watermark_text.html">Text watermark</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../color/index.html">Color</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../color/color_demo.html">Color Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/color_by_yvalue.html">Color by y-value</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/color_cycle_default.html">Colors in the default property cycle</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/color_sequences.html">Named color sequences</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/colorbar_basics.html">Colorbar</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/colormap_reference.html">Colormap reference</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/custom_cmap.html">Create a colormap from a list of colors</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/individual_colors_from_cmap.html">Selecting individual colors from a colormap</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/named_colors.html">List of named colors</a></li>
<li class="toctree-l2"><a class="reference internal" href="../color/set_alpha.html">Ways to set a color's alpha value</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../shapes_and_collections/index.html">Shapes and collections</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/arrow_guide.html">Arrow guide</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/artist_reference.html">Reference for Matplotlib artists</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/collections.html">Line, Poly and RegularPoly Collection with autoscaling</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/compound_path.html">Compound path</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/dolphin.html">Dolphins</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/donut.html">Mmh Donuts!!!</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/ellipse_arrow.html">Ellipse with orientation arrow demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/ellipse_collection.html">Ellipse Collection</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/ellipse_demo.html">Ellipse Demo</a></li>

<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/fancybox_demo.html">Drawing fancy boxes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/hatch_demo.html">Hatch demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/hatch_style_reference.html">Hatch style reference</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/hatchcolor_demo.html">Hatchcolor Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/line_collection.html">Plot multiple lines using a LineCollection</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/patch_collection.html">Circles, Wedges and Polygons</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/path_patch.html">PathPatch object</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/quad_bezier.html">Bezier curve</a></li>
<li class="toctree-l2"><a class="reference internal" href="../shapes_and_collections/scatter.html">Scatter plot</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../style_sheets/index.html">Style sheets</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/bmh.html">Bayesian Methods for Hackers style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/dark_background.html">Dark background style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/fivethirtyeight.html">FiveThirtyEight style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/ggplot.html">ggplot style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/grayscale.html">Grayscale style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/petroff10.html">Petroff10 style sheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/plot_solarizedlight2.html">Solarized Light stylesheet</a></li>
<li class="toctree-l2"><a class="reference internal" href="../style_sheets/style_sheets_reference.html">Style sheets reference</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../pyplots/index.html">Module - pyplot</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../pyplots/pyplot_simple.html">Simple plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pyplots/pyplot_text.html">Text and mathtext using pyplot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pyplots/pyplot_three.html">Multiple lines using pyplot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pyplots/pyplot_two_subplots.html">Two subplots using pyplot</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../axes_grid1/index.html">Module - axes_grid1</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_anchored_direction_arrows.html">Anchored Direction Arrow</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_axes_divider.html">Axes divider</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_axes_grid.html">Demo Axes Grid</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_axes_grid2.html">Axes Grid2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_axes_hbox_divider.html">HBoxDivider and VBoxDivider demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_axes_rgb.html">Show RGB channels using RGBAxes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_colorbar_with_axes_divider.html">Colorbar with AxesDivider</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_colorbar_with_inset_locator.html">Control the position and size of a colorbar with Inset Axes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_edge_colorbar.html">Per-row or per-column colorbars</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_fixed_size_axes.html">Axes with a fixed physical size</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/demo_imagegrid_aspect.html">ImageGrid cells with a fixed aspect ratio</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/inset_locator_demo.html">Inset locator demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/inset_locator_demo2.html">Inset locator demo 2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/make_room_for_ylabel_using_axesgrid.html">Make room for ylabel using axes_grid</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/parasite_simple.html">Parasite Simple</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/parasite_simple2.html">Parasite Simple2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/scatter_hist_locatable_axes.html">Align histogram to scatter plot using locatable Axes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_anchored_artists.html">Simple Anchored Artists</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_axes_divider1.html">Simple Axes Divider 1</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_axes_divider3.html">Simple axes divider 3</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_axesgrid.html">Simple ImageGrid</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_axesgrid2.html">Simple ImageGrid 2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axes_grid1/simple_axisline4.html">Simple Axisline4</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../axisartist/index.html">Module - axisartist</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/axis_direction.html">Axis Direction</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_axis_direction.html">axis_direction demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_axisline_style.html">Axis line styles</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_curvelinear_grid.html">Curvilinear grid demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_curvelinear_grid2.html">Demo CurveLinear Grid2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_floating_axes.html"><code class="docutils literal notranslate"><span class="pre">floating_axes</span></code> features</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_floating_axis.html">floating_axis demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_parasite_axes.html">Parasite Axes demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_parasite_axes2.html">Parasite axis demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_ticklabel_alignment.html">Ticklabel alignment</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/demo_ticklabel_direction.html">Ticklabel direction</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axis_direction01.html">Simple axis direction</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axis_direction03.html">Simple axis tick label and tick directions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axis_pad.html">Simple axis pad</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axisartist1.html">Custom spines with axisartist</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axisline.html">Simple Axisline</a></li>
<li class="toctree-l2"><a class="reference internal" href="../axisartist/simple_axisline3.html">Simple Axisline3</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../showcase/index.html">Showcase</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../showcase/anatomy.html">Anatomy of a figure</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/firefox.html">Firefox</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/integral.html">Integral as the area under a curve</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/mandelbrot.html">Shaded &amp; power normalized rendering</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/pan_zoom_overlap.html">Pan/zoom events of overlapping axes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/stock_prices.html">Stock prices over 32 years</a></li>
<li class="toctree-l2"><a class="reference internal" href="../showcase/xkcd.html">XKCD</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../animation/index.html">Animation</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../animation/animate_decay.html">Decay</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/animated_histogram.html">Animated histogram</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/animation_demo.html">pyplot animation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/bayes_update.html">The Bayes update</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/double_pendulum.html">The double pendulum problem</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/dynamic_image.html">Animated image using a precomputed list of images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/frame_grabbing_sgskip.html">Frame grabbing</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/multiple_axes.html">Multiple Axes animation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/pause_resume.html">Pause and resume an animation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/rain.html">Rain simulation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/random_walk.html">Animated 3D random walk</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/simple_anim.html">Animated line plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/simple_scatter.html">Animated scatter saved as GIF</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/strip_chart.html">Oscilloscope</a></li>
<li class="toctree-l2"><a class="reference internal" href="../animation/unchained.html">Matplotlib unchained</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../event_handling/index.html">Event handling</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/close_event.html">Close event</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/coords_demo.html">Mouse move and click events</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/cursor_demo.html">Cross-hair cursor</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/data_browser.html">Data browser</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/figure_axes_enter_leave.html">Figure/Axes enter and leave events</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/ginput_manual_clabel_sgskip.html">Interactive functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/image_slices_viewer.html">Scroll event</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/keypress_demo.html">Keypress event</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/lasso_demo.html">Lasso Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/legend_picking.html">Legend picking</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/looking_glass.html">Looking glass</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/path_editor.html">Path editor</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/pick_event_demo.html">Pick event demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/pick_event_demo2.html">Pick event demo 2</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/poly_editor.html">Polygon editor</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/pong_sgskip.html">Pong</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/resample.html">Resampling Data</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/timers.html">Timers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/trifinder_event_demo.html">Trifinder Event Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/viewlims.html">Viewlims</a></li>
<li class="toctree-l2"><a class="reference internal" href="../event_handling/zoom_window.html">Zoom modifies other Axes</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../misc/index.html">Miscellaneous</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../misc/anchored_artists.html">Anchored Artists</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/bbox_intersect.html">Identify whether artists intersect</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/contour_manual.html">Manual Contour</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/coords_report.html">Coords Report</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/custom_projection.html">Custom projection</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/customize_rc.html">Customize Rc</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/demo_agg_filter.html">AGG filter</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/demo_ribbon_box.html">Ribbon box</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/fig_x.html">Add lines directly to a figure</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/fill_spiral.html">Fill spiral</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/findobj_demo.html">Findobj Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/font_indexing.html">Font indexing</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/ftface_props.html">Font properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/histogram_path.html">Building histograms using Rectangles and PolyCollections</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/hyperlinks_sgskip.html">Hyperlinks</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/image_thumbnail_sgskip.html">Image thumbnail</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/keyword_plotting.html">Plotting with keywords</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/logos2.html">Matplotlib logo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/multipage_pdf.html">Multipage PDF</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/multiprocess_sgskip.html">Multiprocessing</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/packed_bubbles.html">Packed-bubble chart</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/patheffect_demo.html">Patheffect Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/print_stdout_sgskip.html">Print image to stdout</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/rasterization_demo.html">Rasterization for vector graphics</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/set_and_get.html">Set and get properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/svg_filter_line.html">Apply SVG filter to a line</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/svg_filter_pie.html">SVG filter pie</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/table_demo.html">Table Demo</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/tickedstroke_demo.html">TickedStroke patheffect</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/transoffset.html">transforms.offset_copy</a></li>
<li class="toctree-l2"><a class="reference internal" href="../misc/zorder_demo.html">Zorder Demo</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../mplot3d/index.html">3D plotting</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/2dcollections3d.html">Plot 2D data on 3D plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/3d_bars.html">Demo of 3D bar charts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/axlim_clip.html">Clip the data to the axes view limits</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/bars3d.html">Create 2D bar graphs in different planes</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/box3d.html">3D box surface plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/contour3d.html">Plot contour (level) curves in 3D</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/contour3d_2.html">Plot contour (level) curves in 3D using the extend3d option</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/contour3d_3.html">Project contour profiles onto a graph</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/contourf3d.html">Filled contours</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/contourf3d_2.html">Project filled contour onto a graph</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/custom_shaded_3d_surface.html">Custom hillshading in a 3D surface plot</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/errorbar3d.html">3D errorbars</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/fillbetween3d.html">Fill between 3D lines</a></li>
<li class="toctree-l2"><a class="reference internal" href="../mplot3d/fillunder3d.html">Fill under 3D line graphs</a></li>
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  <div class="sphx-glr-download-link-note admonition note">
<p class="admonition-title">Note</p>
<p><a class="reference internal" href="#sphx-glr-download-gallery-widgets-annotated-cursor-py"><span class="std std-ref">Go to the end</span></a>
to download the full example code.</p>
</div>
<section class="sphx-glr-example-title" id="annotated-cursor">
<span id="sphx-glr-gallery-widgets-annotated-cursor-py"></span><h1>Annotated cursor<a class="headerlink" href="#annotated-cursor" title="Link to this heading">#</a></h1>
<p>Display a data cursor including a text box, which shows the plot point close
to the mouse pointer.</p>
<p>The new cursor inherits from <a class="reference internal" href="../../api/widgets_api.html#matplotlib.widgets.Cursor" title="matplotlib.widgets.Cursor"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Cursor</span></code></a> and demonstrates the
creation of new widgets and their event callbacks.</p>
<p>See also the <a class="reference internal" href="../event_handling/cursor_demo.html"><span class="doc">cross hair cursor</span></a>, which implements a cursor tracking the
plotted data, but without using inheritance and without displaying the
currently tracked coordinates.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>The figure related to this example does not show the cursor, because that
figure is automatically created in a build queue, where the first mouse
movement, which triggers the cursor creation, is missing.</p>
</div>
<div class="highlight-Python notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">matplotlib.pyplot</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">plt</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">numpy</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">np</span>

<span class="kn">from</span><span class="w"> </span><span class="nn">matplotlib.backend_bases</span><span class="w"> </span><span class="kn">import</span> <a href="../../api/backend_bases_api.html#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent" class="sphx-glr-backref-module-matplotlib-backend_bases sphx-glr-backref-type-py-class"><span class="n">MouseEvent</span></a>
<span class="kn">from</span><span class="w"> </span><span class="nn">matplotlib.widgets</span><span class="w"> </span><span class="kn">import</span> <a href="../../api/widgets_api.html#matplotlib.widgets.Cursor" title="matplotlib.widgets.Cursor" class="sphx-glr-backref-module-matplotlib-widgets sphx-glr-backref-type-py-class"><span class="n">Cursor</span></a>


<span class="k">class</span><span class="w"> </span><span class="nc">AnnotatedCursor</span><span class="p">(</span><a href="../../api/widgets_api.html#matplotlib.widgets.Cursor" title="matplotlib.widgets.Cursor" class="sphx-glr-backref-module-matplotlib-widgets sphx-glr-backref-type-py-class"><span class="n">Cursor</span></a><span class="p">):</span>
<span class="w">    </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    A crosshair cursor like `~matplotlib.widgets.Cursor` with a text showing \</span>
<span class="sd">    the current coordinates.</span>

<span class="sd">    For the cursor to remain responsive you must keep a reference to it.</span>
<span class="sd">    The data of the axis specified as *dataaxis* must be in ascending</span>
<span class="sd">    order. Otherwise, the `numpy.searchsorted` call might fail and the text</span>
<span class="sd">    disappears. You can satisfy the requirement by sorting the data you plot.</span>
<span class="sd">    Usually the data is already sorted (if it was created e.g. using</span>
<span class="sd">    `numpy.linspace`), but e.g. scatter plots might cause this problem.</span>
<span class="sd">    The cursor sticks to the plotted line.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    line : `matplotlib.lines.Line2D`</span>
<span class="sd">        The plot line from which the data coordinates are displayed.</span>

<span class="sd">    numberformat : `python format string &lt;https://docs.python.org/3/\</span>
<span class="sd">    library/string.html#formatstrings&gt;`_, optional, default: &quot;{0:.4g};{1:.4g}&quot;</span>
<span class="sd">        The displayed text is created by calling *format()* on this string</span>
<span class="sd">        with the two coordinates.</span>

<span class="sd">    offset : (float, float) default: (5, 5)</span>
<span class="sd">        The offset in display (pixel) coordinates of the text position</span>
<span class="sd">        relative to the cross-hair.</span>

<span class="sd">    dataaxis : {&quot;x&quot;, &quot;y&quot;}, optional, default: &quot;x&quot;</span>
<span class="sd">        If &quot;x&quot; is specified, the vertical cursor line sticks to the mouse</span>
<span class="sd">        pointer. The horizontal cursor line sticks to *line*</span>
<span class="sd">        at that x value. The text shows the data coordinates of *line*</span>
<span class="sd">        at the pointed x value. If you specify &quot;y&quot;, it works in the opposite</span>
<span class="sd">        manner. But: For the &quot;y&quot; value, where the mouse points to, there might</span>
<span class="sd">        be multiple matching x values, if the plotted function is not biunique.</span>
<span class="sd">        Cursor and text coordinate will always refer to only one x value.</span>
<span class="sd">        So if you use the parameter value &quot;y&quot;, ensure that your function is</span>
<span class="sd">        biunique.</span>

<span class="sd">    Other Parameters</span>
<span class="sd">    ----------------</span>
<span class="sd">    textprops : `matplotlib.text` properties as dictionary</span>
<span class="sd">        Specifies the appearance of the rendered text object.</span>

<span class="sd">    **cursorargs : `matplotlib.widgets.Cursor` properties</span>
<span class="sd">        Arguments passed to the internal `~matplotlib.widgets.Cursor` instance.</span>
<span class="sd">        The `matplotlib.axes.Axes` argument is mandatory! The parameter</span>
<span class="sd">        *useblit* can be set to *True* in order to achieve faster rendering.</span>

<span class="sd">    &quot;&quot;&quot;</span>

    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="p">,</span> <span class="n">numberformat</span><span class="o">=</span><span class="s2">&quot;</span><span class="si">{0:.4g}</span><span class="s2">;</span><span class="si">{1:.4g}</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">),</span>
                 <span class="n">dataaxis</span><span class="o">=</span><span class="s1">&#39;x&#39;</span><span class="p">,</span> <span class="n">textprops</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">**</span><span class="n">cursorargs</span><span class="p">):</span>
        <span class="k">if</span> <span class="n">textprops</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
            <span class="n">textprops</span> <span class="o">=</span> <span class="p">{}</span>
        <span class="c1"># The line object, for which the coordinates are displayed</span>
        <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a> <span class="o">=</span> <a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a>
        <span class="c1"># The format string, on which .format() is called for creating the text</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">numberformat</span> <span class="o">=</span> <span class="n">numberformat</span>
        <span class="c1"># Text position offset</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">offset</span> <span class="o">=</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.array.html#numpy.array" title="numpy.array" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-function"><span class="n">np</span><span class="o">.</span><span class="n">array</span></a><span class="p">(</span><span class="n">offset</span><span class="p">)</span>
        <span class="c1"># The axis in which the cursor position is looked up</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">dataaxis</span> <span class="o">=</span> <span class="n">dataaxis</span>

        <span class="c1"># First call baseclass constructor.</span>
        <span class="c1"># Draws cursor and remembers background for blitting.</span>
        <span class="c1"># Saves ax as class attribute.</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">cursorargs</span><span class="p">)</span>

        <span class="c1"># Default value for position of text.</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">set_position</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="o">.</span><span class="n">get_xdata</span><span class="p">()[</span><span class="mi">0</span><span class="p">],</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="o">.</span><span class="n">get_ydata</span><span class="p">()[</span><span class="mi">0</span><span class="p">])</span>
        <span class="c1"># Create invisible animated text</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">text</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">text</span><span class="p">(</span>
            <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">get_xbound</span><span class="p">()[</span><span class="mi">0</span><span class="p">],</span>
            <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">get_ybound</span><span class="p">()[</span><span class="mi">0</span><span class="p">],</span>
            <span class="s2">&quot;0, 0&quot;</span><span class="p">,</span>
            <span class="n">animated</span><span class="o">=</span><span class="nb">bool</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">useblit</span><span class="p">),</span>
            <span class="n">visible</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">textprops</span><span class="p">)</span>
        <span class="c1"># The position at which the cursor was last drawn</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span> <span class="o">=</span> <span class="kc">None</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">onmove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Overridden draw callback for cursor. Called when moving the mouse.</span>
<span class="sd">        &quot;&quot;&quot;</span>

        <span class="c1"># Leave method under the same conditions as in overridden method</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ignore</span><span class="p">(</span><span class="n">event</span><span class="p">):</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span> <span class="o">=</span> <span class="kc">None</span>
            <span class="k">return</span>
        <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">widgetlock</span><span class="o">.</span><span class="n">available</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span> <span class="o">=</span> <span class="kc">None</span>
            <span class="k">return</span>

        <span class="c1"># If the mouse left drawable area, we now make the text invisible.</span>
        <span class="c1"># Baseclass will redraw complete canvas after, which makes both text</span>
        <span class="c1"># and cursor disappear.</span>
        <span class="k">if</span> <span class="n">event</span><span class="o">.</span><span class="n">inaxes</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span> <span class="o">=</span> <span class="kc">None</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
            <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">onmove</span><span class="p">(</span><span class="n">event</span><span class="p">)</span>
            <span class="k">return</span>

        <span class="c1"># Get the coordinates, which should be displayed as text,</span>
        <span class="c1"># if the event coordinates are valid.</span>
        <span class="n">plotpoint</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="k">if</span> <span class="n">event</span><span class="o">.</span><span class="n">xdata</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">event</span><span class="o">.</span><span class="n">ydata</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
            <span class="c1"># Get plot point related to current x position.</span>
            <span class="c1"># These coordinates are displayed in text.</span>
            <span class="n">plotpoint</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_position</span><span class="p">(</span><span class="n">event</span><span class="o">.</span><span class="n">xdata</span><span class="p">,</span> <span class="n">event</span><span class="o">.</span><span class="n">ydata</span><span class="p">)</span>
            <span class="c1"># Modify event, such that the cursor is displayed on the</span>
            <span class="c1"># plotted line, not at the mouse pointer,</span>
            <span class="c1"># if the returned plot point is valid</span>
            <span class="k">if</span> <span class="n">plotpoint</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
                <span class="n">event</span><span class="o">.</span><span class="n">xdata</span> <span class="o">=</span> <span class="n">plotpoint</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
                <span class="n">event</span><span class="o">.</span><span class="n">ydata</span> <span class="o">=</span> <span class="n">plotpoint</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>

        <span class="c1"># If the plotpoint is given, compare to last drawn plotpoint and</span>
        <span class="c1"># return if they are the same.</span>
        <span class="c1"># Skip even the call of the base class, because this would restore the</span>
        <span class="c1"># background, draw the cursor lines and would leave us the job to</span>
        <span class="c1"># re-draw the text.</span>
        <span class="k">if</span> <span class="n">plotpoint</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">plotpoint</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span><span class="p">:</span>
            <span class="k">return</span>

        <span class="c1"># Baseclass redraws canvas and cursor. Due to blitting,</span>
        <span class="c1"># the added text is removed in this call, because the</span>
        <span class="c1"># background is redrawn.</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">onmove</span><span class="p">(</span><span class="n">event</span><span class="p">)</span>

        <span class="c1"># Check if the display of text is still necessary.</span>
        <span class="c1"># If not, just return.</span>
        <span class="c1"># This behaviour is also cloned from the base class.</span>
        <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_active</span><span class="p">()</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">:</span>
            <span class="k">return</span>

        <span class="c1"># Draw the widget, if event coordinates are valid.</span>
        <span class="k">if</span> <span class="n">plotpoint</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
            <span class="c1"># Update position and displayed text.</span>
            <span class="c1"># Position: Where the event occurred.</span>
            <span class="c1"># Text: Determined by set_position() method earlier</span>
            <span class="c1"># Position is transformed to pixel coordinates,</span>
            <span class="c1"># an offset is added there and this is transformed back.</span>
            <span class="n">temp</span> <span class="o">=</span> <span class="p">[</span><span class="n">event</span><span class="o">.</span><span class="n">xdata</span><span class="p">,</span> <span class="n">event</span><span class="o">.</span><span class="n">ydata</span><span class="p">]</span>
            <span class="n">temp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/transformations.html#matplotlib.transforms.CompositeGenericTransform" title="matplotlib.transforms.CompositeGenericTransform" class="sphx-glr-backref-module-matplotlib-transforms sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span><span class="o">.</span><span class="n">transData</span></a><span class="o">.</span><span class="n">transform</span><span class="p">(</span><span class="n">temp</span><span class="p">)</span>
            <span class="n">temp</span> <span class="o">=</span> <span class="n">temp</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">offset</span>
            <span class="n">temp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/transformations.html#matplotlib.transforms.CompositeGenericTransform" title="matplotlib.transforms.CompositeGenericTransform" class="sphx-glr-backref-module-matplotlib-transforms sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span><span class="o">.</span><span class="n">transData</span></a><span class="o">.</span><span class="n">inverted</span><span class="p">()</span><span class="o">.</span><span class="n">transform</span><span class="p">(</span><span class="n">temp</span><span class="p">)</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_position</span><span class="p">(</span><span class="n">temp</span><span class="p">)</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_text</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">numberformat</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="o">*</span><span class="n">plotpoint</span><span class="p">))</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">)</span>

            <span class="c1"># Tell base class, that we have drawn something.</span>
            <span class="c1"># Baseclass needs to know, that it needs to restore a clean</span>
            <span class="c1"># background, if the cursor leaves our figure context.</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">needclear</span> <span class="o">=</span> <span class="kc">True</span>

            <span class="c1"># Remember the recently drawn cursor position, so events for the</span>
            <span class="c1"># same position (mouse moves slightly between two plot points)</span>
            <span class="c1"># can be skipped</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastdrawnplotpoint</span> <span class="o">=</span> <span class="n">plotpoint</span>
        <span class="c1"># otherwise, make text invisible</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>

        <span class="c1"># Draw changes. Cannot use _update method of baseclass,</span>
        <span class="c1"># because it would first restore the background, which</span>
        <span class="c1"># is done already and is not necessary.</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">useblit</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">draw_artist</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">blit</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">bbox</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="c1"># If blitting is deactivated, the overridden _update call made</span>
            <span class="c1"># by the base class immediately returned.</span>
            <span class="c1"># We still have to draw the changes.</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">draw_idle</span><span class="p">()</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">set_position</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">xpos</span><span class="p">,</span> <span class="n">ypos</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Finds the coordinates, which have to be shown in text.</span>

<span class="sd">        The behaviour depends on the *dataaxis* attribute. Function looks</span>
<span class="sd">        up the matching plot coordinate for the given mouse position.</span>

<span class="sd">        Parameters</span>
<span class="sd">        ----------</span>
<span class="sd">        xpos : float</span>
<span class="sd">            The current x position of the cursor in data coordinates.</span>
<span class="sd">            Important if *dataaxis* is set to &#39;x&#39;.</span>
<span class="sd">        ypos : float</span>
<span class="sd">            The current y position of the cursor in data coordinates.</span>
<span class="sd">            Important if *dataaxis* is set to &#39;y&#39;.</span>

<span class="sd">        Returns</span>
<span class="sd">        -------</span>
<span class="sd">        ret : {2D array-like, None}</span>
<span class="sd">            The coordinates which should be displayed.</span>
<span class="sd">            *None* is the fallback value.</span>
<span class="sd">        &quot;&quot;&quot;</span>

        <span class="c1"># Get plot line data</span>
        <span class="n">xdata</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="o">.</span><span class="n">get_xdata</span><span class="p">()</span>
        <span class="n">ydata</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="o">.</span><span class="n">get_ydata</span><span class="p">()</span>

        <span class="c1"># The dataaxis attribute decides, in which axis we look up which cursor</span>
        <span class="c1"># coordinate.</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">dataaxis</span> <span class="o">==</span> <span class="s1">&#39;x&#39;</span><span class="p">:</span>
            <span class="n">pos</span> <span class="o">=</span> <span class="n">xpos</span>
            <span class="n">data</span> <span class="o">=</span> <span class="n">xdata</span>
            <span class="n">lim</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">get_xlim</span><span class="p">()</span>
        <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">dataaxis</span> <span class="o">==</span> <span class="s1">&#39;y&#39;</span><span class="p">:</span>
            <span class="n">pos</span> <span class="o">=</span> <span class="n">ypos</span>
            <span class="n">data</span> <span class="o">=</span> <span class="n">ydata</span>
            <span class="n">lim</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">get_ylim</span><span class="p">()</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;The data axis specifier </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dataaxis</span><span class="si">}</span><span class="s2"> should &quot;</span>
                             <span class="sa">f</span><span class="s2">&quot;be &#39;x&#39; or &#39;y&#39;&quot;</span><span class="p">)</span>

        <span class="c1"># If position is valid and in valid plot data range.</span>
        <span class="k">if</span> <span class="n">pos</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">lim</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="n">pos</span> <span class="o">&lt;=</span> <span class="n">lim</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]:</span>
            <span class="c1"># Find closest x value in sorted x vector.</span>
            <span class="c1"># This requires the plotted data to be sorted.</span>
            <span class="n">index</span> <span class="o">=</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.searchsorted.html#numpy.searchsorted" title="numpy.searchsorted" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-function"><span class="n">np</span><span class="o">.</span><span class="n">searchsorted</span></a><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">pos</span><span class="p">)</span>
            <span class="c1"># Return none, if this index is out of range.</span>
            <span class="k">if</span> <span class="n">index</span> <span class="o">&lt;</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">&gt;=</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">):</span>
                <span class="k">return</span> <span class="kc">None</span>
            <span class="c1"># Return plot point as tuple.</span>
            <span class="k">return</span> <span class="p">(</span><span class="n">xdata</span><span class="p">[</span><span class="n">index</span><span class="p">],</span> <span class="n">ydata</span><span class="p">[</span><span class="n">index</span><span class="p">])</span>

        <span class="c1"># Return none if there is no good related point for this x position.</span>
        <span class="k">return</span> <span class="kc">None</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">clear</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Overridden clear callback for cursor, called before drawing the figure.</span>
<span class="sd">        &quot;&quot;&quot;</span>

        <span class="c1"># The base class saves the clean background for blitting.</span>
        <span class="c1"># Text and cursor are invisible,</span>
        <span class="c1"># until the first mouse move event occurs.</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">clear</span><span class="p">(</span><span class="n">event</span><span class="p">)</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ignore</span><span class="p">(</span><span class="n">event</span><span class="p">):</span>
            <span class="k">return</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">text</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">_update</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Overridden method for either blitting or drawing the widget canvas.</span>

<span class="sd">        Passes call to base class if blitting is activated, only.</span>
<span class="sd">        In other cases, one draw_idle call is enough, which is placed</span>
<span class="sd">        explicitly in this class (see *onmove()*).</span>
<span class="sd">        In that case, `~matplotlib.widgets.Cursor` is not supposed to draw</span>
<span class="sd">        something using this method.</span>
<span class="sd">        &quot;&quot;&quot;</span>

        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">useblit</span><span class="p">:</span>
            <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_update</span><span class="p">()</span>


<a href="../../api/_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure" title="matplotlib.figure.Figure" class="sphx-glr-backref-module-matplotlib-figure sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">fig</span></a><span class="p">,</span> <a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a> <span class="o">=</span> <a href="../../api/_as_gen/matplotlib.pyplot.subplots.html#matplotlib.pyplot.subplots" title="matplotlib.pyplot.subplots" class="sphx-glr-backref-module-matplotlib-pyplot sphx-glr-backref-type-py-function"><span class="n">plt</span><span class="o">.</span><span class="n">subplots</span></a><span class="p">(</span><span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">8</span><span class="p">,</span> <span class="mi">6</span><span class="p">))</span>
<a href="../../api/_as_gen/matplotlib.axes.Axes.set_title.html#matplotlib.axes.Axes.set_title" title="matplotlib.axes.Axes.set_title" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">set_title</span></a><span class="p">(</span><span class="s2">&quot;Cursor Tracking x Position&quot;</span><span class="p">)</span>

<a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">x</span></a> <span class="o">=</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.linspace.html#numpy.linspace" title="numpy.linspace" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-function"><span class="n">np</span><span class="o">.</span><span class="n">linspace</span></a><span class="p">(</span><span class="o">-</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1000</span><span class="p">)</span>
<a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">y</span></a> <span class="o">=</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">x</span></a><span class="o">**</span><span class="mi">2</span>

<a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="p">,</span> <span class="o">=</span> <a href="../../api/_as_gen/matplotlib.axes.Axes.plot.html#matplotlib.axes.Axes.plot" title="matplotlib.axes.Axes.plot" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">plot</span></a><span class="p">(</span><a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">x</span></a><span class="p">,</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">y</span></a><span class="p">)</span>
<a href="../../api/_as_gen/matplotlib.axes.Axes.set_xlim.html#matplotlib.axes.Axes.set_xlim" title="matplotlib.axes.Axes.set_xlim" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">set_xlim</span></a><span class="p">(</span><span class="o">-</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
<a href="../../api/_as_gen/matplotlib.axes.Axes.set_ylim.html#matplotlib.axes.Axes.set_ylim" title="matplotlib.axes.Axes.set_ylim" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">set_ylim</span></a><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">25</span><span class="p">)</span>

<span class="c1"># A minimum call</span>
<span class="c1"># Set useblit=True on most backends for enhanced performance</span>
<span class="c1"># and pass the ax parameter to the Cursor base class.</span>
<span class="c1"># cursor = AnnotatedCursor(line=lin[0], ax=ax, useblit=True)</span>

<span class="c1"># A more advanced call. Properties for text and lines are passed.</span>
<span class="c1"># Watch the passed color names and the color of cursor line and text, to</span>
<span class="c1"># relate the passed options to graphical elements.</span>
<span class="c1"># The dataaxis parameter is still the default.</span>
<span class="n">cursor</span> <span class="o">=</span> <a href="../../api/widgets_api.html#matplotlib.widgets.Cursor" title="matplotlib.widgets.Cursor" class="sphx-glr-backref-module-matplotlib-widgets sphx-glr-backref-type-py-class"><span class="n">AnnotatedCursor</span></a><span class="p">(</span>
    <a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="o">=</span><a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="p">,</span>
    <span class="n">numberformat</span><span class="o">=</span><span class="s2">&quot;</span><span class="si">{0:.2f}</span><span class="se">\n</span><span class="si">{1:.2f}</span><span class="s2">&quot;</span><span class="p">,</span>
    <span class="n">dataaxis</span><span class="o">=</span><span class="s1">&#39;x&#39;</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="p">[</span><span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
    <span class="n">textprops</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;color&#39;</span><span class="p">:</span> <span class="s1">&#39;blue&#39;</span><span class="p">,</span> <span class="s1">&#39;fontweight&#39;</span><span class="p">:</span> <span class="s1">&#39;bold&#39;</span><span class="p">},</span>
    <a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">=</span><a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="p">,</span>
    <span class="n">useblit</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
    <span class="n">color</span><span class="o">=</span><span class="s1">&#39;red&#39;</span><span class="p">,</span>
    <span class="n">linewidth</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>

<span class="c1"># Simulate a mouse move to (-2, 10), needed for online docs</span>
<a href="../../api/transformations.html#matplotlib.transforms.CompositeGenericTransform" title="matplotlib.transforms.CompositeGenericTransform" class="sphx-glr-backref-module-matplotlib-transforms sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">t</span></a> <span class="o">=</span> <a href="../../api/transformations.html#matplotlib.transforms.CompositeGenericTransform" title="matplotlib.transforms.CompositeGenericTransform" class="sphx-glr-backref-module-matplotlib-transforms sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span><span class="o">.</span><span class="n">transData</span></a>
<a href="../../api/backend_bases_api.html#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent" class="sphx-glr-backref-module-matplotlib-backend_bases sphx-glr-backref-type-py-class"><span class="n">MouseEvent</span></a><span class="p">(</span>
    <span class="s2">&quot;motion_notify_event&quot;</span><span class="p">,</span> <a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a><span class="o">.</span><span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="p">,</span> <span class="o">*</span><a href="../../api/transformations.html#matplotlib.transforms.Transform.transform" title="matplotlib.transforms.Transform.transform" class="sphx-glr-backref-module-matplotlib-transforms sphx-glr-backref-type-py-method"><span class="n">t</span><span class="o">.</span><span class="n">transform</span></a><span class="p">((</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="mi">10</span><span class="p">))</span>
<span class="p">)</span><span class="o">.</span><span class="n">_process</span><span class="p">()</span>

<a href="../../api/_as_gen/matplotlib.pyplot.show.html#matplotlib.pyplot.show" title="matplotlib.pyplot.show" class="sphx-glr-backref-module-matplotlib-pyplot sphx-glr-backref-type-py-function"><span class="n">plt</span><span class="o">.</span><span class="n">show</span></a><span class="p">()</span>
</pre></div>
</div>
<img src="../../_images/sphx_glr_annotated_cursor_001.png" srcset="../../_images/sphx_glr_annotated_cursor_001.png, ../../_images/sphx_glr_annotated_cursor_001_2_00x.png 2.00x" alt="Cursor Tracking x Position" class = "sphx-glr-single-img"/><section id="trouble-with-non-biunique-functions">
<h2>Trouble with non-biunique functions<a class="headerlink" href="#trouble-with-non-biunique-functions" title="Link to this heading">#</a></h2>
<p>A call demonstrating problems with the <em>dataaxis=y</em> parameter.
The text now looks up the matching x value for the current cursor y position
instead of vice versa. Hover your cursor to y=4. There are two x values
producing this y value: -2 and 2. The function is only unique,
but not biunique. Only one value is shown in the text.</p>
<div class="highlight-Python notranslate"><div class="highlight"><pre><span></span><a href="../../api/_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure" title="matplotlib.figure.Figure" class="sphx-glr-backref-module-matplotlib-figure sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">fig</span></a><span class="p">,</span> <a href="../../api/_as_gen/matplotlib.axes.Axes.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">ax</span></a> <span class="o">=</span> <a href="../../api/_as_gen/matplotlib.pyplot.subplots.html#matplotlib.pyplot.subplots" title="matplotlib.pyplot.subplots" class="sphx-glr-backref-module-matplotlib-pyplot sphx-glr-backref-type-py-function"><span class="n">plt</span><span class="o">.</span><span class="n">subplots</span></a><span class="p">(</span><span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">8</span><span class="p">,</span> <span class="mi">6</span><span class="p">))</span>
<a href="../../api/_as_gen/matplotlib.axes.Axes.set_title.html#matplotlib.axes.Axes.set_title" title="matplotlib.axes.Axes.set_title" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">set_title</span></a><span class="p">(</span><span class="s2">&quot;Cursor Tracking y Position&quot;</span><span class="p">)</span>

<a href="../../api/_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D" class="sphx-glr-backref-module-matplotlib-lines sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">line</span></a><span class="p">,</span> <span class="o">=</span> <a href="../../api/_as_gen/matplotlib.axes.Axes.plot.html#matplotlib.axes.Axes.plot" title="matplotlib.axes.Axes.plot" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">plot</span></a><span class="p">(</span><a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">x</span></a><span class="p">,</span> <a href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="numpy.ndarray" class="sphx-glr-backref-module-numpy sphx-glr-backref-type-py-class sphx-glr-backref-instance"><span class="n">y</span></a><span class="p">)</span>
<a href="../../api/_as_gen/matplotlib.axes.Axes.set_xlim.html#matplotlib.axes.Axes.set_xlim" title="matplotlib.axes.Axes.set_xlim" class="sphx-glr-backref-module-matplotlib-axes sphx-glr-backref-type-py-method"><span class="n">ax</span><span class="o">.</span><span class="n">set_xlim</span></a><span class="p">(</span><span class="o">-</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
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