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Commit 0e07fd2

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mlubmlub
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2.0 Examples fixes. See #6762
These are fixes for all issues found in axes_grid, color, and event_handling sections on the examples page. axis_grid/demo_colorbar_with_inset_locator.py - changed interpolation from the default(previously bilinear now none) to 'bilinear' to match 1.5.1 example axes_grid1/simple_axesgrid.py - set interpolation to bilinear axisartist/demo_curvelinear_grid.py - Set linewidth=2.0 and grid zorder=0 so the plotted lines actually visible event_handling/keypress_demo.py - added usage instruction as axes title event_handling/lasso_demo.py - added usage instruction as axes title event_handling/looking_glass.py - added usage instruction as axes title event_handling/resample.py - removed gtk and hardcoded wave file dependencies and just created a sample signal within the script event_handling/trifinder_event_demo.py - zip(l1,l2) call changed to list(zip(l1,l2)) to be python3 compatible event_handling/viewlims.py - The focus box that is supposed to appear in the left axes when user zooms in the right axes wasn't visible. Set linewidth=1.0
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‎examples/axes_grid1/demo_colorbar_with_inset_locator.py

Copy file name to clipboardExpand all lines: examples/axes_grid1/demo_colorbar_with_inset_locator.py
+2-2Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
99
height="5%", # height : 50%
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loc=1)
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12-
im1 = ax1.imshow([[1, 2], [2, 3]])
12+
im1 = ax1.imshow([[1, 2], [2, 3]], interpolation='bilinear')
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plt.colorbar(im1, cax=axins1, orientation="horizontal", ticks=[1, 2, 3])
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axins1.xaxis.set_ticks_position("bottom")
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@@ -26,7 +26,7 @@
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# of the legend. you may want to play with the borderpad value and
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# the bbox_to_anchor coordinate.
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29-
im = ax2.imshow([[1, 2], [2, 3]])
29+
im = ax2.imshow([[1, 2], [2, 3]], interpolation='bilinear')
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plt.colorbar(im, cax=axins, ticks=[1, 2, 3])
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plt.draw()

‎examples/axes_grid1/simple_axesgrid.py

Copy file name to clipboardExpand all lines: examples/axes_grid1/simple_axesgrid.py
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -12,6 +12,6 @@
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)
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for i in range(4):
15-
grid[i].imshow(im) # The AxesGrid object work as a list of axes.
15+
grid[i].imshow(im, interpolation='bilinear') # The AxesGrid object work as a list of axes.
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plt.show()

‎examples/axisartist/demo_curvelinear_grid.py

Copy file name to clipboardExpand all lines: examples/axisartist/demo_curvelinear_grid.py
+5-4Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -34,15 +34,15 @@ def inv_tr(x, y):
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fig.add_subplot(ax1)
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xx, yy = tr([3, 6], [5.0, 10.])
37-
ax1.plot(xx, yy)
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ax1.plot(xx, yy, linewidth=2.0)
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ax1.set_aspect(1.)
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ax1.set_xlim(0, 10.)
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ax1.set_ylim(0, 10.)
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ax1.axis["t"] = ax1.new_floating_axis(0, 3.)
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ax1.axis["t2"] = ax1.new_floating_axis(1, 7.)
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ax1.grid(True)
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ax1.grid(True, zorder=0)
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import mpl_toolkits.axisartist.angle_helper as angle_helper
@@ -107,13 +107,14 @@ def curvelinear_test2(fig):
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ax1.parasites.append(ax2)
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intp = cbook.simple_linear_interpolation
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ax2.plot(intp(np.array([0, 30]), 50),
110-
intp(np.array([10., 10.]), 50))
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intp(np.array([10., 10.]), 50),
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linewidth=2.0)
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ax1.set_aspect(1.)
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ax1.set_xlim(-5, 12)
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ax1.set_ylim(-5, 10)
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ax1.grid(True)
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ax1.grid(True, zorder=0)
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118119
if 1:
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fig = plt.figure(1, figsize=(7, 4))

‎examples/event_handling/keypress_demo.py

Copy file name to clipboardExpand all lines: examples/event_handling/keypress_demo.py
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -21,5 +21,5 @@ def press(event):
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ax.plot(np.random.rand(12), np.random.rand(12), 'go')
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xl = ax.set_xlabel('easy come, easy go')
24-
24+
ax.set_title('Press a key')
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plt.show()

‎examples/event_handling/lasso_demo.py

Copy file name to clipboardExpand all lines: examples/event_handling/lasso_demo.py
+2-1Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -77,8 +77,9 @@ def onpress(self, event):
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if __name__ == '__main__':
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data = [Datum(*xy) for xy in rand(100, 2)]
80-
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ax = plt.axes(xlim=(0, 1), ylim=(0, 1), autoscale_on=False)
81+
ax.set_title('Lasso points using left mouse button')
82+
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lman = LassoManager(ax, data)
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plt.show()

‎examples/event_handling/looking_glass.py

Copy file name to clipboardExpand all lines: examples/event_handling/looking_glass.py
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@
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ax.plot(x, y, alpha=0.2)
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line, = ax.plot(x, y, alpha=1.0, clip_path=circ)
13-
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ax.set_title("Left click and drag to move looking glass")
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class EventHandler(object):
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def __init__(self):

‎examples/event_handling/resample.py

Copy file name to clipboard
+10-12Lines changed: 10 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,26 +1,24 @@
11
import numpy as np
22
import matplotlib.pyplot as plt
3-
from scikits.audiolab import wavread
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# A class that will downsample the data and recompute when zoomed.
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class DataDisplayDownsampler(object):
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def __init__(self, xdata, ydata):
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self.origYData = ydata
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self.origXData = xdata
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self.numpts = 3000
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self.ratio = 5
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self.delta = xdata[-1] - xdata[0]
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14-
def resample(self, xstart, xend):
13+
def downsample(self, xstart, xend):
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# Very simple downsampling that takes the points within the range
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# and picks every Nth point
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mask = (self.origXData > xstart) & (self.origXData < xend)
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xdata = self.origXData[mask]
19-
ratio = int(xdata.size / self.numpts) + 1
20-
xdata = xdata[::ratio]
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xdata = xdata[::self.ratio]
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ydata = self.origYData[mask]
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ydata = ydata[::ratio]
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ydata = ydata[::self.ratio]
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return xdata, ydata
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@@ -33,21 +31,21 @@ def update(self, ax):
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self.line.set_data(*self.downsample(xstart, xend))
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ax.figure.canvas.draw_idle()
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# Read data
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data = wavread('/usr/share/sounds/purple/receive.wav')[0]
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ydata = np.tile(data[:, 0], 100)
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xdata = np.arange(ydata.size)
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# Create a signal
35+
xdata = np.linspace(16,365,365-16)
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ydata = np.sin(2*np.pi*xdata/153) + np.cos(2*np.pi*xdata/127);
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d = DataDisplayDownsampler(xdata, ydata)
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fig, ax = plt.subplots()
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# Hook up the line
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xdata, ydata = d.downsample(xdata[0], xdata[-1])
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d.line, = ax.plot(xdata, ydata)
43+
d.line, = ax.plot(xdata, ydata,'o-')
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ax.set_autoscale_on(False) # Otherwise, infinite loop
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# Connect for changing the view limits
5147
ax.callbacks.connect('xlim_changed', d.update)
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plt.show()
50+
51+

‎examples/event_handling/trifinder_event_demo.py

Copy file name to clipboardExpand all lines: examples/event_handling/trifinder_event_demo.py
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,7 @@ def update_polygon(tri):
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points = triangulation.triangles[tri]
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xs = triangulation.x[points]
1919
ys = triangulation.y[points]
20-
polygon.set_xy(zip(xs, ys))
20+
polygon.set_xy(list(zip(xs, ys)))
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2323
def motion_notify(event):

‎examples/event_handling/viewlims.py

Copy file name to clipboardExpand all lines: examples/event_handling/viewlims.py
+2-1Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -64,7 +64,7 @@ def ax_update(self, ax):
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ax1.imshow(Z, origin='lower', extent=(md.x.min(), md.x.max(), md.y.min(), md.y.max()))
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ax2.imshow(Z, origin='lower', extent=(md.x.min(), md.x.max(), md.y.min(), md.y.max()))
6666

67-
rect = UpdatingRect([0, 0], 0, 0, facecolor='None', edgecolor='black')
67+
rect = UpdatingRect([0, 0], 0, 0, facecolor='None', edgecolor='black', linewidth=1.0)
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rect.set_bounds(*ax2.viewLim.bounds)
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ax1.add_patch(rect)
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@@ -74,5 +74,6 @@ def ax_update(self, ax):
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7575
ax2.callbacks.connect('xlim_changed', md.ax_update)
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ax2.callbacks.connect('ylim_changed', md.ax_update)
77+
ax2.set_title("Zoom here")
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7879
plt.show()

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