In order to understand the elevation data chart, we need reference points along the x axis to help us determine the elevation along the route. We will calculate the mile splits along the route and place these at the appropriate location on the x axis of our charts:
# Locate the mile markers
for i in range(1, int(round(total))):
mile = 0
while mile < i:
j += 1
mile += distances[j]
measurements.append((int(mile), j))
j =- 1
# Set up labels for the mile points
positions = []
miles = []
for m, i in measurements:
pos = ((i*1.0)/len(elvs)) * 100
positions.append(pos)
miles.append(m)
# Position the mile marker labels along the x axis
miles_label = chart.set_axis_labels(Axis.BOTTOM, miles)
chart.set_axis_positions(miles_label, positions)
# Label the x axis as "Miles"
miles_text = chart.set_axis_labels(Axis.BOTTOM, ["MILES", ])
chart.set_axis_positions(miles_text, [50, ])
# Save the chart
chart.download('{}_profile.png'.format...