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pylab_examples_Examples 56_demo_annotation_box. |
H.Kamifuji . |
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 if 1: 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) fn = get_sample_data("grace_hopper.png", asfileobj=False) arr_img = plt.imread(fn, 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() |
![]() Python 3.11.2 見直しました。上記のコードでは、下記のエラーが発生します。 Traceback (most recent call last): File "_:\demo_annotation_box.py", line 18, in <module> offsetbox = TextArea("Test 1", minimumdescent=False) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\_____\AppData\Local\Programs\Python\Python311\Lib\site-packages\matplotlib\_api\deprecation.py", line 454, in wrapper return func(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^ TypeError: TextArea.__init__() got an unexpected keyword argument 'minimumdescent' matplotlib 内部のエラーのようです。matplotlib の改修(先祖帰りバグの改修)を待つしかない。 Python 3.11.6 (matplotlib 3.7.1) では、下記のようなエラーがあり、実行できない。 Traceback (most recent call last): File "M:\______\demo_annotation_box.py", line 18, inPython 3.12.0 (matplotlib 3.8.1) では、下記のようなエラーがあり、実行できない。 Traceback (most recent call last): File "E:\______\demo_annotation_box.py", line 18, inPython 3.11.6 (matplotlib 3.7.1) 及び Python 3.12.0 (matplotlib 3.8.1) で、見直し中、新しいサンプル(text-labels-and-annotations-demo-annotation-box-py) を見つけ、下記のコードで、正常に実行できました。 """ =================== AnnotationBbox demo =================== `.AnnotationBbox` creates an annotation using an `.OffsetBox`, and provides more fine-grained control than `.Axes.annotate`. This example demonstrates the use of AnnotationBbox together with three different OffsetBoxes: `.TextArea`, `.DrawingArea`, and `.OffsetImage`. """ import matplotlib.pyplot as plt import numpy as np from matplotlib.cbook import get_sample_data from matplotlib.offsetbox import (AnnotationBbox, DrawingArea, OffsetImage, TextArea) from matplotlib.patches import Circle 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") ab = AnnotationBbox(offsetbox, xy, xybox=(-20, 40), xycoords='data', boxcoords="offset points", arrowprops=dict(arrowstyle="->"), bboxprops=dict(boxstyle="sawtooth")) ax.add_artist(ab) # Annotate the 1st position with another text box ('Test') offsetbox = TextArea("Test") 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., xy[1]), xycoords='data', boxcoords=("axes fraction", "data"), box_alignment=(0.2, 0.5), arrowprops=dict(arrowstyle="->"), bboxprops=dict(alpha=0.5)) 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.jpg") as file: arr_img = plt.imread(file) 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() # %% # # .. admonition:: References # # The use of the following functions, methods, classes and modules is shown # in this example: # # - `matplotlib.patches.Circle` # - `matplotlib.offsetbox.TextArea` # - `matplotlib.offsetbox.DrawingArea` # - `matplotlib.offsetbox.OffsetImage` # - `matplotlib.offsetbox.AnnotationBbox` # - `matplotlib.cbook.get_sample_data` # - `matplotlib.pyplot.subplots` # - `matplotlib.pyplot.imread`Python 3.11.6 (matplotlib 3.7.1) 及び Python 3.12.0 (matplotlib 3.8.1) 共に、正常実行です。 ![]() |
pylab_examples_Examples code: demo_annotation_box.py text-labels-and-annotations-demo-annotation-box-py |
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