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pep8ify examples/ part 3#3183

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twmr wants to merge4 commits intomatplotlib:masterfromtwmr:pep8examplesapiv3
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4 changes: 2 additions & 2 deletionsexamples/animation/double_pendulum_animated.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -22,8 +22,8 @@ def derivs(state, t):
del_ = state[2] - state[0]
den1 = (M1 + M2) * L1 - M2 * L1 * cos(del_) * cos(del_)
dydx[1] = (M2 * L1 * state[1] * state[1] * sin(del_) * cos(del_)
+ M2 * G * sin(state[2]) * cos(del_) + M2 *
L2 * state[3] * state[3] * sin(del_)
+ M2 * G * sin(state[2]) * cos(del_)
+ M2 *L2 * state[3] * state[3] * sin(del_)
- (M1 + M2) * G * sin(state[0])) / den1

dydx[2] = state[3]
Expand Down
1 change: 1 addition & 0 deletionsexamples/event_handling/close_event.py
View file
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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,7 @@
from __future__ import print_function
import matplotlib.pyplot as plt


def handle_close(evt):
print('Closed Figure!')

Expand Down
53 changes: 30 additions & 23 deletionsexamples/event_handling/data_browser.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -2,11 +2,13 @@


class PointBrowser:

"""
Click on a point to select and highlight it -- the data that
generated the point will be shown in the lower axes. Use the 'n'
and 'p' keys to browse through the next and previous points
"""

def __init__(self):
self.lastind = 0

Expand All@@ -16,50 +18,56 @@ def __init__(self):
color='yellow', visible=False)

def onpress(self, event):
if self.lastind is None: return
if event.key not in ('n', 'p'): return
if event.key=='n': inc = 1
else: inc = -1

if self.lastind is None:
return
if event.key not in ('n', 'p'):
return
if event.key == 'n':
inc = 1
else:
inc = -1

self.lastind += inc
self.lastind = np.clip(self.lastind, 0, len(xs)-1)
self.lastind = np.clip(self.lastind, 0, len(xs) -1)
self.update()

def onpick(self, event):

if event.artist!=line: return True
if event.artist != line:
return True

N = len(event.ind)
if not N: return True
N = len(event.ind)
if not N:
return True

# the click locations
x = event.mouseevent.xdata
y = event.mouseevent.ydata
# the click locations
x = event.mouseevent.xdata
y = event.mouseevent.ydata

distances = np.hypot(x - xs[event.ind], y - ys[event.ind])
indmin = distances.argmin()
dataind = event.ind[indmin]

distances = np.hypot(x-xs[event.ind], y-ys[event.ind])
indmin = distances.argmin()
dataind = event.ind[indmin]

self.lastind = dataind
self.update()
self.lastind = dataind
self.update()

def update(self):
if self.lastind is None: return
if self.lastind is None:
return

dataind = self.lastind

ax2.cla()
ax2.plot(X[dataind])

ax2.text(0.05, 0.9, 'mu=%1.3f\nsigma=%1.3f'%(xs[dataind], ys[dataind]),
transform=ax2.transAxes, va='top')
ax2.text(
0.05, 0.9, 'mu=%1.3f\nsigma=%1.3f' % (xs[dataind], ys[dataind]),
transform=ax2.transAxes, va='top')
ax2.set_ylim(-0.5, 1.5)
self.selected.set_visible(True)
self.selected.set_data(xs[dataind], ys[dataind])

self.text.set_text('selected: %d'%dataind)
self.text.set_text('selected: %d' %dataind)
fig.canvas.draw()


Expand All@@ -80,4 +88,3 @@ def update(self):
fig.canvas.mpl_connect('key_press_event', browser.onpress)

plt.show()

6 changes: 4 additions & 2 deletionsexamples/event_handling/figure_axes_enter_leave.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -5,21 +5,25 @@
from __future__ import print_function
import matplotlib.pyplot as plt


def enter_axes(event):
print('enter_axes', event.inaxes)
event.inaxes.patch.set_facecolor('yellow')
event.canvas.draw()


def leave_axes(event):
print('leave_axes', event.inaxes)
event.inaxes.patch.set_facecolor('white')
event.canvas.draw()


def enter_figure(event):
print('enter_figure', event.canvas.figure)
event.canvas.figure.patch.set_facecolor('red')
event.canvas.draw()


def leave_figure(event):
print('leave_figure', event.canvas.figure)
event.canvas.figure.patch.set_facecolor('grey')
Expand All@@ -42,5 +46,3 @@ def leave_figure(event):
fig2.canvas.mpl_connect('axes_leave_event', leave_axes)

plt.show()


14 changes: 7 additions & 7 deletionsexamples/event_handling/idle_and_timeout.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -10,19 +10,21 @@
fig, ax = plt.subplots()

t = np.arange(0.0, 2.0, 0.01)
y1 = np.sin(2*np.pi*t)
y2 = np.cos(2*np.pi*t)
y1 = np.sin(2 *np.pi *t)
y2 = np.cos(2 *np.pi *t)
line1, = ax.plot(y1)
line2, = ax.plot(y2)

N = 100


def on_idle(event):
on_idle.count +=1
on_idle.count +=1
print('idle', on_idle.count)
line1.set_ydata(np.sin(2*np.pi*t*(N-on_idle.count)/float(N)))
line1.set_ydata(np.sin(2 *np.pi * t * (N -on_idle.count) /float(N)))
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Excessive whitespace.

event.canvas.draw()
# test boolean return removal
if on_idle.count==N:
if on_idle.count ==N:
return False
return True
on_idle.cid = None
Expand All@@ -31,5 +33,3 @@ def on_idle(event):
fig.canvas.mpl_connect('idle_event', on_idle)

plt.show()


2 changes: 1 addition & 1 deletionexamples/event_handling/keypress_demo.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -12,7 +12,7 @@
def press(event):
print('press', event.key)
sys.stdout.flush()
if event.key=='x':
if event.key =='x':
visible = xl.get_visible()
xl.set_visible(not visible)
fig.canvas.draw()
Expand Down
20 changes: 14 additions & 6 deletionsexamples/event_handling/lasso_demo.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,17 +15,22 @@
from numpy import nonzero
from numpy.random import rand


class Datum(object):
colorin = colorConverter.to_rgba('red')
colorout = colorConverter.to_rgba('blue')

def __init__(self, x, y, include=False):
self.x = x
self.y = y
if include: self.color = self.colorin
else: self.color = self.colorout
if include:
self.color = self.colorin
else:
self.color = self.colorout


class LassoManager(object):

def __init__(self, ax, data):
self.axes = ax
self.canvas = ax.figure.canvas
Expand DownExpand Up@@ -61,17 +66,20 @@ def callback(self, verts):
del self.lasso

def onpress(self, event):
if self.canvas.widgetlock.locked(): return
if event.inaxes is None: return
self.lasso = Lasso(event.inaxes, (event.xdata, event.ydata), self.callback)
if self.canvas.widgetlock.locked():
return
if event.inaxes is None:
return
self.lasso = Lasso(
event.inaxes, (event.xdata, event.ydata), self.callback)
# acquire a lock on the widget drawing
self.canvas.widgetlock(self.lasso)

if __name__ == '__main__':

data = [Datum(*xy) for xy in rand(100, 2)]

ax = plt.axes(xlim=(0,1), ylim=(0,1), autoscale_on=False)
ax = plt.axes(xlim=(0,1), ylim=(0,1), autoscale_on=False)
lman = LassoManager(ax, data)

plt.show()
4 changes: 2 additions & 2 deletionsexamples/event_handling/legend_picking.py
View file
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Original file line numberDiff line numberDiff line change
Expand Up@@ -5,8 +5,8 @@
import matplotlib.pyplot as plt

t = np.arange(0.0, 0.2, 0.1)
y1 = 2*np.sin(2*np.pi*t)
y2 = 4*np.sin(2*np.pi*2*t)
y1 = 2 *np.sin(2 *np.pi *t)
y2 = 4 *np.sin(2 *np.pi * 2 *t)
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Excessive whitespace.


fig, ax = plt.subplots()
ax.set_title('Click on legend line to toggle line on/off')
Expand Down
62 changes: 32 additions & 30 deletionsexamples/event_handling/looking_glass.py
View file
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Original file line numberDiff line numberDiff line change
Expand Up@@ -4,43 +4,45 @@
x, y = np.random.rand(2, 200)

fig, ax = plt.subplots()
circ = patches.Circle((0.5, 0.5), 0.25, alpha=0.8, fc='yellow')
circ = patches.Circle((0.5, 0.5), 0.25, alpha=0.8, fc='yellow')
ax.add_patch(circ)


ax.plot(x, y, alpha=0.2)
line, = ax.plot(x, y, alpha=1.0, clip_path=circ)


class EventHandler:
def __init__(self):
fig.canvas.mpl_connect('button_press_event', self.onpress)
fig.canvas.mpl_connect('button_release_event', self.onrelease)
fig.canvas.mpl_connect('motion_notify_event', self.onmove)
self.x0, self.y0 = circ.center
self.pressevent = None

def onpress(self, event):
if event.inaxes!=ax:
return

if not circ.contains(event)[0]:
return

self.pressevent = event

def onrelease(self, event):
self.pressevent = None
self.x0, self.y0 = circ.center

def onmove(self, event):
if self.pressevent is None or event.inaxes!=self.pressevent.inaxes:
return

dx = event.xdata - self.pressevent.xdata
dy = event.ydata - self.pressevent.ydata
circ.center = self.x0 + dx, self.y0 + dy
line.set_clip_path(circ)
fig.canvas.draw()

def __init__(self):
fig.canvas.mpl_connect('button_press_event', self.onpress)
fig.canvas.mpl_connect('button_release_event', self.onrelease)
fig.canvas.mpl_connect('motion_notify_event', self.onmove)
self.x0, self.y0 = circ.center
self.pressevent = None

def onpress(self, event):
if event.inaxes != ax:
return

if not circ.contains(event)[0]:
return

self.pressevent = event

def onrelease(self, event):
self.pressevent = None
self.x0, self.y0 = circ.center

def onmove(self, event):
if self.pressevent is None or event.inaxes != self.pressevent.inaxes:
return

dx = event.xdata - self.pressevent.xdata
dy = event.ydata - self.pressevent.ydata
circ.center = self.x0 + dx, self.y0 + dy
line.set_clip_path(circ)
fig.canvas.draw()

handler = EventHandler()
plt.show()
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