Delete .venv directory
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Untriex Programming
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import numpy as np
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from matplotlib.testing.decorators import image_comparison
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import matplotlib.pyplot as plt
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import matplotlib.patheffects as path_effects
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from matplotlib.path import Path
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import matplotlib.patches as patches
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@image_comparison(['patheffect1'], remove_text=True)
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def test_patheffect1():
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ax1 = plt.subplot()
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ax1.imshow([[1, 2], [2, 3]])
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txt = ax1.annotate("test", (1., 1.), (0., 0),
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arrowprops=dict(arrowstyle="->",
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connectionstyle="angle3", lw=2),
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size=20, ha="center",
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path_effects=[path_effects.withStroke(linewidth=3,
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foreground="w")])
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txt.arrow_patch.set_path_effects([path_effects.Stroke(linewidth=5,
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foreground="w"),
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path_effects.Normal()])
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pe = [path_effects.withStroke(linewidth=3, foreground="w")]
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ax1.grid(True, linestyle="-", path_effects=pe)
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@image_comparison(['patheffect2'], remove_text=True, style='mpl20')
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def test_patheffect2():
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ax2 = plt.subplot()
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arr = np.arange(25).reshape((5, 5))
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ax2.imshow(arr, interpolation='nearest')
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cntr = ax2.contour(arr, colors="k")
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plt.setp(cntr.collections,
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path_effects=[path_effects.withStroke(linewidth=3,
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foreground="w")])
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clbls = ax2.clabel(cntr, fmt="%2.0f", use_clabeltext=True)
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plt.setp(clbls,
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path_effects=[path_effects.withStroke(linewidth=3,
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foreground="w")])
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@image_comparison(['patheffect3'])
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def test_patheffect3():
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p1, = plt.plot([1, 3, 5, 4, 3], 'o-b', lw=4)
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p1.set_path_effects([path_effects.SimpleLineShadow(),
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path_effects.Normal()])
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plt.title(
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r'testing$^{123}$',
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path_effects=[path_effects.withStroke(linewidth=1, foreground="r")])
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leg = plt.legend([p1], [r'Line 1$^2$'], fancybox=True, loc='upper left')
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leg.legendPatch.set_path_effects([path_effects.withSimplePatchShadow()])
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text = plt.text(2, 3, 'Drop test', color='white',
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bbox={'boxstyle': 'circle,pad=0.1', 'color': 'red'})
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pe = [path_effects.Stroke(linewidth=3.75, foreground='k'),
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path_effects.withSimplePatchShadow((6, -3), shadow_rgbFace='blue')]
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text.set_path_effects(pe)
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text.get_bbox_patch().set_path_effects(pe)
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pe = [path_effects.PathPatchEffect(offset=(4, -4), hatch='xxxx',
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facecolor='gray'),
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path_effects.PathPatchEffect(edgecolor='white', facecolor='black',
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lw=1.1)]
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t = plt.gcf().text(0.02, 0.1, 'Hatch shadow', fontsize=75, weight=1000,
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va='center')
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t.set_path_effects(pe)
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@image_comparison(['stroked_text.png'])
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def test_patheffects_stroked_text():
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text_chunks = [
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'A B C D E F G H I J K L',
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'M N O P Q R S T U V W',
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'X Y Z a b c d e f g h i j',
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'k l m n o p q r s t u v',
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'w x y z 0123456789',
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r"!@#$%^&*()-=_+[]\;'",
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',./{}|:"<>?'
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]
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font_size = 50
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ax = plt.axes([0, 0, 1, 1])
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for i, chunk in enumerate(text_chunks):
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text = ax.text(x=0.01, y=(0.9 - i * 0.13), s=chunk,
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fontdict={'ha': 'left', 'va': 'center',
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'size': font_size, 'color': 'white'})
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text.set_path_effects([path_effects.Stroke(linewidth=font_size / 10,
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foreground='black'),
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path_effects.Normal()])
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ax.set_xlim(0, 1)
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ax.set_ylim(0, 1)
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ax.axis('off')
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def test_PathEffect_points_to_pixels():
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fig = plt.figure(dpi=150)
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p1, = plt.plot(range(10))
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p1.set_path_effects([path_effects.SimpleLineShadow(),
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path_effects.Normal()])
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renderer = fig.canvas.get_renderer()
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pe_renderer = path_effects.PathEffectRenderer(
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p1.get_path_effects(), renderer)
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# Confirm that using a path effects renderer maintains point sizes
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# appropriately. Otherwise rendered font would be the wrong size.
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assert renderer.points_to_pixels(15) == pe_renderer.points_to_pixels(15)
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def test_SimplePatchShadow_offset():
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pe = path_effects.SimplePatchShadow(offset=(4, 5))
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assert pe._offset == (4, 5)
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@image_comparison(['collection'], tol=0.03, style='mpl20')
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def test_collection():
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x, y = np.meshgrid(np.linspace(0, 10, 150), np.linspace(-5, 5, 100))
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data = np.sin(x) + np.cos(y)
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cs = plt.contour(data)
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pe = [path_effects.PathPatchEffect(edgecolor='black', facecolor='none',
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linewidth=12),
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path_effects.Stroke(linewidth=5)]
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for collection in cs.collections:
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collection.set_path_effects(pe)
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for text in plt.clabel(cs, colors='white'):
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text.set_path_effects([path_effects.withStroke(foreground='k',
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linewidth=3)])
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text.set_bbox({'boxstyle': 'sawtooth', 'facecolor': 'none',
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'edgecolor': 'blue'})
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@image_comparison(['tickedstroke'], remove_text=True, extensions=['png'])
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def test_tickedstroke():
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fig, (ax1, ax2, ax3) = plt.subplots(1, 3, figsize=(12, 4))
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path = Path.unit_circle()
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patch = patches.PathPatch(path, facecolor='none', lw=2, path_effects=[
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path_effects.withTickedStroke(angle=-90, spacing=10,
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length=1)])
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ax1.add_patch(patch)
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ax1.axis('equal')
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ax1.set_xlim(-2, 2)
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ax1.set_ylim(-2, 2)
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ax2.plot([0, 1], [0, 1], label=' ',
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path_effects=[path_effects.withTickedStroke(spacing=7,
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angle=135)])
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nx = 101
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x = np.linspace(0.0, 1.0, nx)
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y = 0.3 * np.sin(x * 8) + 0.4
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ax2.plot(x, y, label=' ', path_effects=[path_effects.withTickedStroke()])
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ax2.legend()
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nx = 101
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ny = 105
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# Set up survey vectors
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xvec = np.linspace(0.001, 4.0, nx)
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yvec = np.linspace(0.001, 4.0, ny)
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# Set up survey matrices. Design disk loading and gear ratio.
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x1, x2 = np.meshgrid(xvec, yvec)
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# Evaluate some stuff to plot
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g1 = -(3 * x1 + x2 - 5.5)
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g2 = -(x1 + 2 * x2 - 4)
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g3 = .8 + x1 ** -3 - x2
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cg1 = ax3.contour(x1, x2, g1, [0], colors=('k',))
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plt.setp(cg1.collections,
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path_effects=[path_effects.withTickedStroke(angle=135)])
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cg2 = ax3.contour(x1, x2, g2, [0], colors=('r',))
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plt.setp(cg2.collections,
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path_effects=[path_effects.withTickedStroke(angle=60, length=2)])
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cg3 = ax3.contour(x1, x2, g3, [0], colors=('b',))
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plt.setp(cg3.collections,
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path_effects=[path_effects.withTickedStroke(spacing=7)])
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ax3.set_xlim(0, 4)
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ax3.set_ylim(0, 4)
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