def hello():
"""The flask web app first runs the temperature and CO2 plot generators for specified
parameters, generates an image, and then embeds that image the web page by using html."""
plot_temperature('February', 1820, 2000, -10, 10)
plot_CO2(1820, 2000, 3, 10000)
plot_CO2_by_country(1.5, 3.0, 1960)
return render_template('assign6.html', var=random.random())
def render_page(options):
plot_temperature(options)
temperature_url = save_plot_and_return_url()
plot_CO2(options)
co2_url = save_plot_and_return_url()
return render_template('index.html',
temperature_url=temperature_url,
co2_url=co2_url,
options=options)
def root():
temp_file = BytesIO()
co2_file = BytesIO()
plot_temperature(fig_file=temp_file)
plot_CO2(fig_file=co2_file)
temp_file.seek(0)
co2_file.seek(0)
temp_figdata_png = base64.b64encode(temp_file.getvalue()).decode()
co2_figdata_png = base64.b64encode(co2_file.getvalue()).decode()
return render_template('plots.html',
co2_plot=co2_figdata_png,
temp_plot=temp_figdata_png)
def temperature_plot():
months = request.args.getlist("month")
if len(months) == 0:
months = "January"
tmin = request.args.get("tmin")
tmax = request.args.get("tmax")
t_b = (int(tmin), int(tmax)) if tmin != "" and tmax != "" else None
ymin = request.args.get("ymin")
ymax = request.args.get("ymax")
y_b = (float(ymin), float(ymax)) if ymin != "" and ymax != "" else None
plotter.plot_temperature(months, time_bounds=t_b, y_bounds=y_b)
plt.savefig("static/plot_img.png")
return render_template("show_plot.html")
def temp_plot():
ymin = request.form["ymin"]
ymax = request.form["ymax"]
start_year = int(request.form["starty"])
end_year = int(request.form["endy"])
month = int(request.form["month"])
temp_data = np.genfromtxt("temperature.csv", delimiter=',', dtype="str")
plot_temperature(temp_data, month, ymin, ymax, start_year, end_year)
return render_template('plot_temp.html',
start_year=start_year,
end_year=end_year,
ymin=ymin,
ymax=ymax,
month=month)
def temperature():
"""
Takes the given aguments from the user and creates pyplot with plot_temperature and
returns it to temperature_page.html
"""
if request.method == "GET":
return render_template("temperature_page.html",
yearMin=tempYearMin,
yearMax=tempYearMax)
month = request.form["month"]
start = request.form["start"]
end = request.form["end"]
minY = request.form["minY"]
maxY = request.form["maxY"]
args = [_str(month), _int(start), _int(end), _float(minY), _float(maxY)]
plots = [
base64.b64encode(plot.getvalue()).decode("ascii")
for plot in plot_temperature(*args)
]
return render_template("temperature_page.html",
plots=plots,
yearMin=tempYearMin,
yearMax=tempYearMax,
m=month,
start=start,
end=end,
minY=minY,
maxY=maxY)
def handle_changes():
'''This function incorporates the users requested changes into the plots, generates updated plots
and then updates the web page.'''
assert request.method == 'POST' # Check that we are really in a POST request
# Acces the form data:
m = str(request.form["month"])
ts = int(request.form["t_starting_year"])
te = int(request.form["t_ending_year"])
tys = float(request.form["t_y_min"])
tye = float(request.form["t_y_max"])
cs = int(request.form["c_starting_year"])
ce = int(request.form["c_ending_year"])
cys = float(request.form["c_y_min"])
cye = float(request.form["c_y_max"])
plot_temperature(m, ts, te, tys, tye)
plot_CO2(cs, ce, cys, cye)
return render_template('assign6.html', var=random.random())
def temperature():
start_year = int(request.form['selectStartYear'])
end_year = int(request.form['selectEndYear'])
ymin = float(request.form['ymin'])
ymax = float(request.form['ymax'])
month = request.form['selectMonth']
plot_temperature((start_year, end_year), ymin, ymax, month)
file = '{}_plot.png'.format(month)
return render_template('result_template.html',
start_year=start_year,
end_year=end_year,
ymin=ymin,
ymax=ymax,
month=month,
file=file)
def temperature():
#convert parameters to ints
arguments = {k: int(v) for k, v in request.form.items() if v}
#get months
month = arguments.get("month", 1)
#remove month if in arguments to avoid duplicate arguments
if "month" in arguments:
del(arguments["month"])
b = plot_temperature(month, "svg", **arguments)
svg = b[b.index(b"<svg "):].decode()
arguments["month"] = month
return render_template("temperature.html",month_list=month_list[1:], svg=svg, **arguments)
def temp_plot():
start_yearTemp = int(request.form["startyearTemp"])
end_yearTemp = int(request.form["endyearTemp"])
ymin = request.form["yminTemp"]
ymax = request.form["ymaxTemp"]
y_axis = [ymin, ymax]
if ("Default" in y_axis) or ("" in y_axis):
y_axis = None
else:
y_axis = [float(ymin), float(ymax)]
month = request.form["month"]
temp = plot_temperature(month, start_yearTemp, end_yearTemp, y_axis)
return render_template("temp_plot.html", temp=temp)
