MNT: final tweaks

Author: tacaswell

00-explore.py

@@ -1,6 +1,5 @@
 import matplotlib.pyplot as plt
 import numpy as np
-plt.ion()
 
 last_ev = None
 
@@ -23,6 +22,7 @@ def event_printer(event):
 ax.plot(th, np.sin(th), 'o-', picker=5)
 
 cid = fig.canvas.mpl_connect('button_press_event', event_printer)
+plt.show()
 # fig.canvas.mpl_disconnect(cid)
 
 

01-callable.py

@@ -40,5 +40,5 @@ def __call__(self, event):
 
 
 # EXERCISE
-# - Try connecting the same object to events calls
+# - Try connecting the same object to other events
 # - add helper function to manage event buffer

02-event_filter.py

@@ -1,7 +1,5 @@
 import matplotlib.pyplot as plt
 from itertools import cycle
-plt.ion()
-
 
 class LineMaker:
     def __init__(self, ln):
@@ -55,7 +53,7 @@ def on_key(self, event):
 fig, ax = plt.subplots()
 ln, = ax.plot([], [], '-o')
 line_maker = LineMaker(ln)
-
+plt.show()
 # EXERCISE
 # - modify to remove the closest point when key == 'shift'
 # - change the line width for [1-9]

04-spline_demo.py

@@ -129,7 +129,7 @@ def _get_spline(cls, points, pix_err=2, need_sort=True, **kwargs):
             pt_lst = list(points)
 
             # compute center
-            def tmp_fun(x, y): (x[0] + y[0], x[1] + y[1])
+            tmp_fun = lambda x, y: (x[0] + y[0], x[1] + y[1])
 
             center = np.array(reduce(tmp_fun, pt_lst)).reshape(2, 1)
             center /= len(pt_lst)
@@ -269,6 +269,10 @@ def q_phi_to_xy(self, q, phi, cross=None):
 
 
 fig, ax = plt.subplots()
+ax.set_title('left-click to add points, right-click to remove')
 sp = SplineFitter(ax, .001)
-plt.ion()
 plt.show()
+
+
+# exercise
+# - add pick event to move a point

key/00-explore.py

@@ -1,6 +1,6 @@
 import matplotlib.pyplot as plt
 import numpy as np
-plt.ion()
+
 
 last_ev = None
 
@@ -13,7 +13,7 @@ def event_printer(event):
     # capture the last event
     global last_ev
     last_ev = event
-    if event.inaxes is not None:
+    if hasattr(event, 'inaxes') and event.inaxes is not None:
         print(f'{event.name} ({event.xdata:.3f}, {event.ydata:.3f})')
     else:
         print(f'{event.name}')
@@ -28,3 +28,6 @@ def event_printer(event):
                   'scroll_event',
                   'key_press_event', 'key_release_event',
                   'pick_event')}
+
+
+plt.show()

key/02-event_filter.py

@@ -1,7 +1,6 @@
 import matplotlib.pyplot as plt
 from itertools import cycle
 import numpy as np
-plt.ion()
 
 
 class LineMaker:
@@ -85,3 +84,4 @@ def on_key(self, event):
 fig, ax = plt.subplots()
 ln, = ax.plot([], [], '-o')
 line_maker = LineMaker(ln)
+plt.show()

notes.org

@@ -28,7 +28,7 @@ https://www.packtpub.com/application-development/interactive-applications-using-
 
 ** install
 
-$ conda create mpl_tut -c anaconda matplotlib pandas pytables ipython python=3.6
+$ conda create mpl_tut -c anaconda matplotlib pandas pytables ipython h5py python=3.6
 $ source activate mpl_tut
 
 * 00-explore

slides/slides.org

@@ -184,4 +184,4 @@ new backend).
 * 00 Installation
 ** installation
 
- =conda create mpl_tut -c anaconda matplotlib pandas pytables ipython python=3.6=
+ =conda create mpl_tut -c anaconda matplotlib pandas pytables h5py ipython python=3.6=

spectral/spectral.py

@@ -5,6 +5,7 @@
 import numpy as np
 import h5py
 
+
 def plot_all_chan_spectrum(spectrum, bins, *, ax=None, **kwargs):
 
     def integrate_to_angles(spectrum, bins, lo, hi):
@@ -72,5 +73,5 @@ def update(lo, hi):
     spectrum = fin['spectrum'][:]
     bins = fin['bins'][:]
 
-plot_all_chan_spectrum(spectrum, bins)
+ret = plot_all_chan_spectrum(spectrum, bins)
 plt.show()

03-picking.py renamed to weather/03-picking.py

@@ -1,12 +1,12 @@
 import matplotlib.pyplot as plt
-from pddc_helpers import (load_bwi_data, aggregate_by_day, extract_day_of_hourly,
-                          label_date)
+from w_helpers import load_ornl_data, aggregate_by_day, extract_day_of_hourly
+
 import uuid
-plt.ion()
 
-bwi = load_bwi_data()
-bwi = bwi[bwi['year'] > 2014]
-bwi_daily = aggregate_by_day(bwi)
+
+ornl = load_ornl_data()
+ornl = ornl[ornl['year'] >= 2016]
+ornl_daily = aggregate_by_day(ornl)
 
 
 class RowPrinter:
@@ -39,13 +39,14 @@ def remove(self):
 
 
 fig, ax = plt.subplots()
-ln, = ax.plot('mean', '-o', data=bwi_daily)
+ln, = ax.plot('mean', '-o', data=ornl_daily)
 ax.set_xlabel('Date [UTC]')
 ax.set_ylabel('Air Temperature [℃]')
-ax.set_title('BWI')
-rp = RowPrinter(ln, bwi_daily)
+ax.set_title('ORNL')
+rp = RowPrinter(ln, ornl_daily)
 
-one_day = extract_day_of_hourly(bwi, 2015, 10, 18)
+one_day = extract_day_of_hourly(ornl, 2015, 10, 18)
+plt.show()
 
 # EXERCISE
 # - make the print out nicer looking