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NelleVNelleV
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Merge pull request #8860 from tacaswell/doc_yinleon_rebase
Doc yinleon rebase
2 parents 8e517d8 + 20b6309 commit 30cdd23

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lines changed

‎examples/axisartist/demo_axisline_style.py

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,8 +1,9 @@
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"""
2-
===================
3-
Demo Axisline Style
4-
===================
2+
================
3+
Axis line styles
4+
================
55
6+
This example shows some configurations for axis style.
67
"""
78

89
from mpl_toolkits.axisartist.axislines import SubplotZero
@@ -15,10 +16,14 @@
1516
fig.add_subplot(ax)
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1718
for direction in ["xzero", "yzero"]:
19+
# adds arrows at the ends of each axis
1820
ax.axis[direction].set_axisline_style("-|>")
21+
22+
# adds X and Y-axis from the origin
1923
ax.axis[direction].set_visible(True)
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2125
for direction in ["left", "right", "bottom", "top"]:
26+
# hides borders
2227
ax.axis[direction].set_visible(False)
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2429
x = np.linspace(-0.5, 1., 100)

‎examples/event_handling/poly_editor.py

Lines changed: 10 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -4,8 +4,7 @@
44
===========
55
66
This is an example to show how to build cross-GUI applications using
7-
matplotlib event handling to interact with objects on the canvas
8-
7+
Matplotlib event handling to interact with objects on the canvas.
98
"""
109
import numpy as np
1110
from matplotlib.lines import Line2D
@@ -34,17 +33,19 @@ class PolygonInteractor(object):
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3534
def __init__(self, ax, poly):
3635
if poly.figure is None:
37-
raise RuntimeError('You must first add the polygon to a figure or canvas before defining the interactor')
36+
raise RuntimeError('You must first add the polygon to a figure '
37+
'or canvas before defining the interactor')
3838
self.ax = ax
3939
canvas = poly.figure.canvas
4040
self.poly = poly
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4242
x, y = zip(*self.poly.xy)
43-
self.line = Line2D(x, y, marker='o', markerfacecolor='r', animated=True)
43+
self.line = Line2D(x, y,
44+
marker='o', markerfacecolor='r',
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animated=True)
4446
self.ax.add_line(self.line)
45-
#self._update_line(poly)
4647

47-
cid = self.poly.add_callback(self.poly_changed)
48+
self.cid = self.poly.add_callback(self.poly_changed)
4849
self._ind = None # the active vert
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5051
canvas.mpl_connect('draw_event', self.draw_callback)
@@ -113,7 +114,9 @@ def key_press_callback(self, event):
113114
elif event.key == 'd':
114115
ind = self.get_ind_under_point(event)
115116
if ind is not None:
116-
self.poly.xy = [tup for i, tup in enumerate(self.poly.xy) if i != ind]
117+
self.poly.xy = [tup
118+
for i, tup in enumerate(self.poly.xy)
119+
if i != ind]
117120
self.line.set_data(zip(*self.poly.xy))
118121
elif event.key == 'i':
119122
xys = self.poly.get_transform().transform(self.poly.xy)
@@ -173,7 +176,6 @@ def motion_notify_callback(self, event):
173176
ax.add_patch(poly)
174177
p = PolygonInteractor(ax, poly)
175178

176-
#ax.add_line(p.line)
177179
ax.set_title('Click and drag a point to move it')
178180
ax.set_xlim((-2, 2))
179181
ax.set_ylim((-2, 2))

‎examples/event_handling/resample.py

Lines changed: 26 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1,9 +1,13 @@
11
"""
2-
========
3-
Resample
4-
========
2+
===============
3+
Resampling Data
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===============
55
6+
Downsampling lowers the sample rate or sample size of a signal. In
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this tutorial, the signal is downsampled when the plot is adjusted
8+
through dragging and zooming.
69
"""
10+
711
import numpy as np
812
import matplotlib.pyplot as plt
913

@@ -13,18 +17,28 @@ class DataDisplayDownsampler(object):
1317
def __init__(self, xdata, ydata):
1418
self.origYData = ydata
1519
self.origXData = xdata
16-
self.ratio = 5
20+
self.max_points = 50
1721
self.delta = xdata[-1] - xdata[0]
1822

1923
def downsample(self, xstart, xend):
20-
# Very simple downsampling that takes the points within the range
21-
# and picks every Nth point
24+
# get the points in the view range
2225
mask = (self.origXData > xstart) & (self.origXData < xend)
23-
xdata = self.origXData[mask]
24-
xdata = xdata[::self.ratio]
26+
# dilate the mask by one to catch the points just outside
27+
# of the view range to not truncate the line
28+
mask = np.convolve([1, 1], mask, mode='same').astype(bool)
29+
# sort out how many points to drop
30+
ratio = max(np.sum(mask) // self.max_points, 1)
2531

32+
# mask data
33+
xdata = self.origXData[mask]
2634
ydata = self.origYData[mask]
27-
ydata = ydata[::self.ratio]
35+
36+
# downsample data
37+
xdata = xdata[::ratio]
38+
ydata = ydata[::ratio]
39+
40+
print("using {} of {} visible points".format(
41+
len(ydata), np.sum(mask)))
2842

2943
return xdata, ydata
3044

@@ -37,8 +51,9 @@ def update(self, ax):
3751
self.line.set_data(*self.downsample(xstart, xend))
3852
ax.figure.canvas.draw_idle()
3953

54+
4055
# Create a signal
41-
xdata = np.linspace(16, 365, 365-16)
56+
xdata = np.linspace(16, 365, (365-16)*4)
4257
ydata = np.sin(2*np.pi*xdata/153) + np.cos(2*np.pi*xdata/127)
4358

4459
d = DataDisplayDownsampler(xdata, ydata)
@@ -51,5 +66,5 @@ def update(self, ax):
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5267
# Connect for changing the view limits
5368
ax.callbacks.connect('xlim_changed', d.update)
54-
69+
ax.set_xlim(16, 365)
5570
plt.show()

‎examples/mplot3d/lines3d.py

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,9 +1,9 @@
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'''
2-
===================
3-
3D parametric curve
4-
===================
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================
3+
Parametric Curve
4+
================
55
6-
Demonstrating plotting a parametric curve in 3D.
6+
This example demonstrates plotting a parametric curve in 3D.
77
'''
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99
import matplotlib as mpl

‎examples/mplot3d/lorenz_attractor.py

Lines changed: 7 additions & 6 deletions
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@@ -1,11 +1,12 @@
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'''
2-
====================
3-
The Lorenz Attractor
4-
====================
2+
================
3+
Lorenz Attractor
4+
================
55
6-
Plot of the Lorenz Attractor based on Edward Lorenz's 1963 "Deterministic
7-
Nonperiodic Flow" publication.
8-
http://journals.ametsoc.org/doi/abs/10.1175/1520-0469%281963%29020%3C0130%3ADNF%3E2.0.CO%3B2
6+
This is an example of plotting Edward Lorenz's 1963 `"Deterministic
7+
Nonperiodic Flow"
8+
<http://journals.ametsoc.org/doi/abs/10.1175/1520-0469%281963%29020%3C0130%3ADNF%3E2.0.CO%3B2>`_
9+
in a 3-dimensional space using mplot3d.
910
1011
Note: Because this is a simple non-linear ODE, it would be more easily
1112
done using SciPy's ode solver, but this approach depends only

‎examples/mplot3d/mixed_subplots.py

Lines changed: 4 additions & 5 deletions
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@@ -1,11 +1,10 @@
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"""
2-
==================
3-
2D and 3D subplots
4-
==================
2+
=================================
3+
2D and 3D *Axes* in same *Figure*
4+
=================================
55
6-
Demonstrate the mixing of 2d and 3d subplots.
6+
This example shows a how to plot a 2D and 3D plot on the same figure.
77
"""
8-
98
from mpl_toolkits.mplot3d import Axes3D
109
import matplotlib.pyplot as plt
1110
import numpy as np

‎examples/mplot3d/offset.py

Lines changed: 3 additions & 3 deletions
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@@ -1,7 +1,7 @@
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'''
2-
===================
3-
Offset text display
4-
===================
2+
=========================
3+
Automatic Text Offsetting
4+
=========================
55
66
This example demonstrates mplot3d's offset text display.
77
As one rotates the 3D figure, the offsets should remain oriented the

‎examples/pylab_examples/bar_stacked.py

Lines changed: 9 additions & 4 deletions
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@@ -1,10 +1,15 @@
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"""
2-
===========
3-
Bar Stacked
4-
===========
2+
=================
3+
Stacked Bar Graph
4+
=================
5+
6+
This is an example of creating a stacked bar plot with error bars
7+
using `~matplotlib.pyplot.bar`. Note the parameters *yerr* used for
8+
error bars, and *bottom* to stack the women's bars on top of the men's
9+
bars.
510
6-
A stacked bar plot with errorbars.
711
"""
12+
813
import numpy as np
914
import matplotlib.pyplot as plt
1015

‎examples/pylab_examples/dolphin.py

Lines changed: 7 additions & 3 deletions
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@@ -1,9 +1,13 @@
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"""
2-
=======
3-
Dolphin
4-
=======
2+
========
3+
Dolphins
4+
========
5+
6+
This example shows how to draw, and manipulate shapes given vertices
7+
and nodes using the `Patches`, `Path` and `Transforms` classes.
58
69
"""
10+
711
import matplotlib.cm as cm
812
import matplotlib.pyplot as plt
913
from matplotlib.patches import Circle, PathPatch

‎examples/pylab_examples/fill_between_demo.py

Lines changed: 6 additions & 3 deletions
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@@ -1,9 +1,12 @@
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"""
2-
=================
3-
Fill Between Demo
4-
=================
2+
==============================
3+
Filling the area between lines
4+
==============================
55
6+
This example shows how to use `fill_between` to color between lines based on
7+
user-defined logic.
68
"""
9+
710
import matplotlib.pyplot as plt
811
import numpy as np
912

‎examples/pylab_examples/geo_demo.py

Lines changed: 8 additions & 3 deletions
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@@ -1,9 +1,14 @@
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"""
2-
========
3-
Geo Demo
4-
========
2+
======================
3+
Geographic Projections
4+
======================
5+
6+
This shows 4 possible projections using subplot. Matplotlib also
7+
supports `Basemaps Toolkit <https://matplotlib.org/basemap>`_ and
8+
`Cartopy <http://scitools.org.uk/cartopy>`_ for geographic projections.
59
610
"""
11+
712
import matplotlib.pyplot as plt
813

914
plt.figure()

‎examples/pylab_examples/log_test.py

Lines changed: 4 additions & 1 deletion
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@@ -1,9 +1,12 @@
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"""
22
========
3-
Log Test
3+
Log Axis
44
========
55
6+
This is an example of assigning a log-scale for the x-axis using
7+
`semilogx`.
68
"""
9+
710
import matplotlib.pyplot as plt
811
import numpy as np
912

‎examples/pylab_examples/mri_demo.py

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"""
2-
========
3-
MRI Demo
4-
========
2+
===
3+
MRI
4+
===
55
6-
Displays an MRI image.
7-
"""
86
7+
This example illustrates how to read an image (of an MRI) into a NumPy
8+
array, and display it in greyscale using `imshow`.
9+
10+
"""
911

1012
import matplotlib.pyplot as plt
1113
import matplotlib.cbook as cbook

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