Jupyter Notebook Viewer (original) (raw)

""" Show examples of matplotlib artists http://matplotlib.org/api/artist_api.html

Several examples of standard matplotlib graphics primitives (artists) are drawn using matplotlib API. Full list of artists and the documentation is available at http://matplotlib.org/api/artist_api.html

License: This work is licensed under the BSD. A copy should be included with this source code, and is also available at http://www.opensource.org/licenses/bsd-license.php """

from matplotlib.collections import PatchCollection import matplotlib.path as mpath import matplotlib.patches as mpatches import matplotlib.lines as mlines

fig, ax = plt.subplots(1, 1, figsize=(7,7))

create 3x3 grid to plot the artists

pos = np.mgrid[0.2:0.8:3j, 0.2:0.8:3j].reshape(2, -1) patches = []

add a circle

art = mpatches.Circle(pos[:, 0], 0.1, ec="none") patches.append(art) plt.text(pos[0, 0], pos[1, 0] - 0.15, "Circle", ha="center", size=14)

add a rectangle

art = mpatches.Rectangle(pos[:, 1] - [0.025, 0.05], 0.05, 0.1, ec="none") patches.append(art) plt.text(pos[0, 1], pos[1, 1] - 0.15, "Rectangle", ha="center", size=14)

add a wedge

wedge = mpatches.Wedge(pos[:, 2], 0.1, 30, 270, ec="none") patches.append(wedge) plt.text(pos[0, 2], pos[1, 2] - 0.15, "Wedge", ha="center", size=14)

add a Polygon

polygon = mpatches.RegularPolygon(pos[:, 3], 5, 0.1) patches.append(polygon) plt.text(pos[0, 3], pos[1, 3] - 0.15, "Polygon", ha="center", size=14)

#add an ellipse ellipse = mpatches.Ellipse(pos[:, 4], 0.2, 0.1) patches.append(ellipse) plt.text(pos[0, 4], pos[1, 4] - 0.15, "Ellipse", ha="center", size=14)

#add an arrow arrow = mpatches.Arrow(pos[0, 5] - 0.05, pos[1, 5] - 0.05, 0.1, 0.1, width=0.1) patches.append(arrow) plt.text(pos[0, 5], pos[1, 5] - 0.15, "Arrow", ha="center", size=14)

add a path patch

Path = mpath.Path verts = np.array([ (0.158, -0.257), (0.035, -0.11), (-0.175, 0.20), (0.0375, 0.20), (0.085, 0.115), (0.22, 0.32), (0.3, 0.005), (0.20, -0.05), (0.158, -0.257), ]) verts = verts - verts.mean(0) codes = [Path.MOVETO, Path.CURVE4, Path.CURVE4, Path.CURVE4, Path.LINETO, Path.CURVE4, Path.CURVE4, Path.CURVE4, Path.CLOSEPOLY]

path = mpath.Path(verts / 2.5 + pos[:, 6], codes) patch = mpatches.PathPatch(path) patches.append(patch) plt.text(pos[0, 6], pos[1, 6] - 0.15, "PathPatch", ha="center", size=14)

add a fancy box

fancybox = mpatches.FancyBboxPatch( pos[:, 7] - [0.025, 0.05], 0.05, 0.1, boxstyle=mpatches.BoxStyle("Round", pad=0.02)) patches.append(fancybox) plt.text(pos[0, 7], pos[1, 7] - 0.15, "FancyBoxPatch", ha="center", size=14)

add a line

x,y = np.array([[-0.06, 0.0, 0.1], [0.05,-0.05, 0.05]]) line = mlines.Line2D(x+pos[0, 8], y+pos[1, 8], lw=5.) plt.text(pos[0, 8], pos[1, 8] - 0.15, "Line2D", ha="center", size=14)

collection = PatchCollection(patches) ax.add_collection(collection) ax.add_line(line) ax.set_axis_off()

plt.show()