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Merge pull request #7541 from NelleV/5654_staticimages
DOC: new static images for the frontpage
2 parents fb4b061 + 87c08b5 commit 8349813

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‎doc/_static/contour_frontpage.png

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‎doc/_static/histogram_frontpage.png

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‎doc/_static/membrane_frontpage.png

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‎doc/_static/surface3d_frontpage.png

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‎examples/frontpage/plot_3D.py

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"""
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====================
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Frontpage 3D example
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====================
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This example reproduces the frontpage 3D example.
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"""
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from mpl_toolkits.mplot3d import Axes3D
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from matplotlib import cbook
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from matplotlib import cm
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from matplotlib.colors import LightSource
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import matplotlib.pyplot as plt
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import numpy as np
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filename = cbook.get_sample_data('jacksboro_fault_dem.npz', asfileobj=False)
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with np.load(filename) as dem:
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z = dem['elevation']
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nrows, ncols = z.shape
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x = np.linspace(dem['xmin'], dem['xmax'], ncols)
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y = np.linspace(dem['ymin'], dem['ymax'], nrows)
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x, y = np.meshgrid(x, y)
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region = np.s_[5:50, 5:50]
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x, y, z = x[region], y[region], z[region]
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fig, ax = plt.subplots(subplot_kw=dict(projection='3d'), figsize=(1.62, 1.38))
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ls = LightSource(270, 45)
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# To use a custom hillshading mode, override the built-in shading and pass
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# in the rgb colors of the shaded surface calculated from "shade".
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rgb = ls.shade(z, cmap=cm.gist_earth, vert_exag=0.1, blend_mode='soft')
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surf = ax.plot_surface(x, y, z, rstride=1, cstride=1, facecolors=rgb,
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linewidth=0, antialiased=False, shade=False)
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ax.set_xticks([])
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ax.set_yticks([])
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ax.set_zticks([])
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fig.savefig("surface3d_frontpage.png")

‎examples/frontpage/plot_contour.py

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"""
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=========================
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Frontpage contour example
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=========================
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This example reproduces the frontpage contour example.
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"""
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import matplotlib.pyplot as plt
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import numpy as np
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from matplotlib import mlab, cm
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extent = (-3, 3, -3, 3)
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delta = 0.5
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x = np.arange(-3.0, 4.001, delta)
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y = np.arange(-4.0, 3.001, delta)
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X, Y = np.meshgrid(x, y)
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Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, -0.5)
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Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
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Z = (Z1 - Z2) * 10
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levels = np.linspace(-2.0, 1.601, 40)
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norm = cm.colors.Normalize(vmax=abs(Z).max(), vmin=-abs(Z).max())
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fig, ax = plt.subplots(figsize=(1.62, 1.38))
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cset1 = ax.contourf(
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X, Y, Z, levels,
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norm=norm)
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ax.set_xlim(-3, 3)
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ax.set_ylim(-3, 3)
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ax.set_xticks([])
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ax.set_yticks([])
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fig.savefig("contour_frontpage.png")

‎examples/frontpage/plot_histogram.py

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"""
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===========================
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Frontpage histogram example
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===========================
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This example reproduces the frontpage histogram example.
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"""
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import matplotlib.pyplot as plt
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import numpy as np
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random_state = np.random.RandomState(19680801)
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X = random_state.randn(10000)
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fig, ax = plt.subplots(figsize=(1.62, 1.38))
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ax.hist(X, bins=25, normed=True)
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x = np.linspace(-5, 5, 1000)
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ax.plot(x, 1 / np.sqrt(2*np.pi) * np.exp(-(x**2)/2), linewidth=4)
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ax.set_xticks([])
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ax.set_yticks([])
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fig.savefig("histogram_frontpage.png")

‎examples/frontpage/plot_membrane.py

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"""
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======================
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Frontpage plot example
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======================
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This example reproduces the frontpage simple plot example.
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"""
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import matplotlib.pyplot as plt
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import matplotlib.cbook as cbook
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import numpy as np
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datafile = cbook.get_sample_data('membrane.dat', asfileobj=False)
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x = np.fromfile(datafile, np.float32)
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# 0.0005 is the sample interval
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fig, ax = plt.subplots(figsize=(1.62, 1.38))
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ax.plot(x, linewidth=4)
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ax.set_xlim(5000, 6000)
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ax.set_ylim(-0.6, 0.1)
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ax.set_xticks([])
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ax.set_yticks([])
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fig.savefig("membrane_frontpage.png")

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