.. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_text_labels_and_annotations_demo_annotation_box.py: =================== Demo Annotation Box =================== The AnnotationBbox Artist creates an annotation using an OffsetBox. This example demonstrates three different OffsetBoxes: TextArea, DrawingArea and OffsetImage. AnnotationBbox gives more fine-grained control than using the axes method annotate. .. code-block:: default import matplotlib.pyplot as plt import numpy as np from matplotlib.patches import Circle from matplotlib.offsetbox import (TextArea, DrawingArea, OffsetImage, AnnotationBbox) from matplotlib.cbook import get_sample_data fig, ax = plt.subplots() # Define a 1st position to annotate (display it with a marker) xy = (0.5, 0.7) ax.plot(xy[0], xy[1], ".r") # Annotate the 1st position with a text box ('Test 1') offsetbox = TextArea("Test 1", minimumdescent=False) ab = AnnotationBbox(offsetbox, xy, xybox=(-20, 40), xycoords='data', boxcoords="offset points", arrowprops=dict(arrowstyle="->")) ax.add_artist(ab) # Annotate the 1st position with another text box ('Test') offsetbox = TextArea("Test", minimumdescent=False) ab = AnnotationBbox(offsetbox, xy, xybox=(1.02, xy[1]), xycoords='data', boxcoords=("axes fraction", "data"), box_alignment=(0., 0.5), arrowprops=dict(arrowstyle="->")) ax.add_artist(ab) # Define a 2nd position to annotate (don't display with a marker this time) xy = [0.3, 0.55] # Annotate the 2nd position with a circle patch da = DrawingArea(20, 20, 0, 0) p = Circle((10, 10), 10) da.add_artist(p) ab = AnnotationBbox(da, xy, xybox=(1.02, xy[1]), xycoords='data', boxcoords=("axes fraction", "data"), box_alignment=(0., 0.5), arrowprops=dict(arrowstyle="->")) ax.add_artist(ab) # Annotate the 2nd position with an image (a generated array of pixels) arr = np.arange(100).reshape((10, 10)) im = OffsetImage(arr, zoom=2) im.image.axes = ax ab = AnnotationBbox(im, xy, xybox=(-50., 50.), xycoords='data', boxcoords="offset points", pad=0.3, arrowprops=dict(arrowstyle="->")) ax.add_artist(ab) # Annotate the 2nd position with another image (a Grace Hopper portrait) with get_sample_data("grace_hopper.png") as file: arr_img = plt.imread(file, format='png') imagebox = OffsetImage(arr_img, zoom=0.2) imagebox.image.axes = ax ab = AnnotationBbox(imagebox, xy, xybox=(120., -80.), xycoords='data', boxcoords="offset points", pad=0.5, arrowprops=dict( arrowstyle="->", connectionstyle="angle,angleA=0,angleB=90,rad=3") ) ax.add_artist(ab) # Fix the display limits to see everything ax.set_xlim(0, 1) ax.set_ylim(0, 1) plt.show() .. image:: /gallery/text_labels_and_annotations/images/sphx_glr_demo_annotation_box_001.png :class: sphx-glr-single-img ------------ References """""""""" The use of the following functions, methods and classes is shown in this example: .. code-block:: default Circle TextArea DrawingArea OffsetImage AnnotationBbox get_sample_data plt.subplots plt.imread plt.show .. rst-class:: sphx-glr-script-out Out: .. code-block:: none .. _sphx_glr_download_gallery_text_labels_and_annotations_demo_annotation_box.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: demo_annotation_box.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: demo_annotation_box.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_