def test_opt_zoom_close(self): lat_min = 37.778078 lat_max = 37.7790522 lon_min = -122.5075327 lon_max = -122.5038727 zoom_level = utils.get_zoom_level(lat_max, lat_min, lon_max, lon_min, self.imgheight, self.imgwidth) self.assertEqual(zoom_level, 18.0)
def test_opt_zoom_far(self): lat_max = 37.778078 lat_min = 37.531389 lon_max = -122.3610777 lon_min = -122.5068727 zoom_level = utils.get_zoom_level(lat_max, lat_min, lon_max, lon_min, self.imgheight, self.imgwidth) self.assertEqual(zoom_level, 11.0)
def test_opt_zoom_error(self): lat_min = 37.778078 lat_max = 37.7780522 lon_min = -122.5075327 lon_max = -122.5068727 # to catch that it fails with this error with self.assertRaises(ValueError): zoom_level = utils.get_zoom_level(lat_max, lat_min, lon_max, lon_min, self.imgheight, self.imgwidth)
def show_default_map():
"""Get the longitude and latitudes from the get_session_lonlats.
Generate marker text from make_marker_text for each house.
Show the properties stored in session on a map
then allow to zoom in on properties to show pindrops
or heat maps"""
if len(session['properties']) > 0:
lonlat_tuples = get_session_lonlats()
marker_string_list = make_marker_text(lonlat_tuples)
marker_api_string = ",".join(marker_string_list)
imgwidth = 1024
imgheight = 650
#calculate map centers
lon_center = sum([float(lon) for zpid, lon, lat in lonlat_tuples])/len(lonlat_tuples)
lat_center = sum([float(lat) for zpid, lon, lat in lonlat_tuples])/len(lonlat_tuples)
#calculate bounds with max and mins
lon_max = max([float(lon) for zpid, lon, lat in lonlat_tuples])
lon_min = min([float(lon) for zpid, lon, lat in lonlat_tuples])
lat_max = max([float(lat) for zpid, lon, lat in lonlat_tuples])
lat_min = min([float(lat) for zpid, lon, lat in lonlat_tuples])
zoom_level = get_zoom_level(lat_max, lat_min, lon_max, lon_min, imgheight, imgwidth) if len(lonlat_tuples) > 1 else 16
lon_lat_zoom = str(lon_center) + ',' + str(lat_center) + ',' + str(zoom_level)
imgsize = str(imgwidth) + 'x' + str(imgheight)
new_src = 'https://api.mapbox.com/v4/mapbox.streets/' + marker_api_string + '/' + lon_lat_zoom + '/' + imgsize + '.png?access_token=' + mapbox_api_key
return render_template("map.html", imgwidth=imgwidth, imgheight=imgheight, src=new_src)
else:
return("<div id='map-error'><br><b>Please add at least one property to your list to map.</b><div>")
