def plot_iv(self, th, fits, iv=Data()):
# Plot the current data
current_line = self.fig.host.errorbar(x=iv.v_mean,
y=iv.i_mean,
yerr=iv.i_error,
fmt='r.',
label='Current')
# Label axis
self.fig.host.set_xlabel("Voltage (V)")
self.fig.host.set_ylabel("Current ($\mu$A)")
# List of plotted lines
lines = [current_line]
# Tick size
tkw = dict(size=4, width=1.5)
self.fig.host.tick_params(axis='x', **tkw)
# If plotting temperature and humidity lines:
if th:
# Overall average temperature and humidity
temp_averages = iv.average_temp()
hum_averages = iv.average_hum()
# Plot temperature and humidity
temp_line, = self.fig.temp.plot(
iv.v_mean,
iv.temperature,
color='b',
alpha=0.4,
label='Temperature, $T_{Av}$ = %s$^\circ$C' % temp_averages[0])
hum_line, = self.fig.hum.plot(iv.v_mean,
iv.humidity,
color='g',
alpha=0.4,
label='Humidity, $H_{Av}$ = %s%%' %
hum_averages[0])
# Colour axis
self.fig.temp.yaxis.label.set_color(temp_line.get_color())
self.fig.hum.yaxis.label.set_color(hum_line.get_color())
# Uncomment to constrain axis range
#self.fig.hum.set_ylim([30, 50])
#self.fig.temp.set_ylim([18, 22])
# Label axis
self.fig.temp.set_ylabel("Temperature ($^\circ$C)")
self.fig.hum.set_ylabel("Humidity (%)")
self.fig.temp.tick_params(axis='y',
colors=temp_line.get_color(),
**tkw)
self.fig.hum.tick_params(axis='y',
colors=hum_line.get_color(),
**tkw)
# Add to list of lines
lines.append(temp_line)
lines.append(hum_line)
# If finding the breakdown voltage:
if fits:
bd_voltage = Fitting.breakdown_voltage(iv)[0]
bd_statement = Fitting.breakdown_voltage(iv)[1]
#print(bd_statement)
# Plot a vertical line at breakdown voltage
if bd_voltage is not None:
bd_line = self.fig.host.axvline(
x=bd_voltage,
color='r',
linestyle='--',
label='$V_{Breakdown}$ = %sV' %
Fitting.round_sig(bd_voltage, 3))
lines.append(bd_line)
else:
no_bd_line, = self.fig.host.plot([], [],
' ',
label=bd_statement)
lines.append(no_bd_line)
# Create legend and title
self.fig.host.legend(lines, [l.get_label() for l in lines])
self.fig.suptitle(iv.name)
