Plotting is broken

[kuanb]

Likely related to the observation in prev. Issue #71 regarding warnings.

Attempting to plot with Pandana's built in tool results in a blank graph, like this:

Above image is based off a bounding box bbox = (-89.566399, 42.984056, -89.229584, 43.171917) (note shown arrangement is before bbox is resorted/ordered in function.

The plot function in UrbanAccess's plot.py file was used in my case as a rough guide to generate a temporary replacement function to enable the plot function in Pandana to work.

Should it be of any assistance, I will include it below:

import matplotlib.pyplot as plt
import matplotlib.cm as cm
from matplotlib import collections as mc
x_min, y_min, x_max, y_max = bbox
bbox_aspect_ratio = (y_max-y_min)/(x_max-x_min)
fig_height = 35
fig, ax = plt.subplots(figsize=(fig_height / bbox_aspect_ratio, fig_height))
x_vals = list(p_net.nodes_df.x.values)
y_vals = list(p_net.nodes_df.y.values)

s = p_net.aggregate(15, type="sum", decay="linear", name="emp")
s = s[s.values == 0]
s[s.values == 0] = 9000

# drop all 0s
data = s[s.values > 0]

num_bins = 10
categories = pd.qcut(x=data, q=num_bins, labels=range(num_bins))
import matplotlib.cm as cm
color_list = [cm.get_cmap('hot')(x) for x in np.linspace(0.1, 0.9, num_bins)]
cleaned_categories = [int(cat) for cat in categories]
colors = [color_list[cat] for cat in cleaned_categories]

ax.scatter(x_vals, y_vals, s=5, c=colors, alpha=0.35, edgecolor='none', zorder=3)

margin=0.02
margin_ns = (y_min-y_max) * margin
margin_ew = (x_min-x_max) * margin
ax.set_ylim((y_min - margin_ns, y_max + margin_ns))
ax.set_xlim((x_min - margin_ew, x_max + margin_ew))

# configure axis
ax.get_xaxis().get_major_formatter().set_useOffset(False)
ax.get_yaxis().get_major_formatter().set_useOffset(False)
ax.axis('off')

plt.savefig('testplot.png', facecolor='black')

[kuanb]

Closing this out as plotting error was on my end as Urban Access and Pandana use different bounding box formats.