def googleMapShowUtils(points):
markers = []
for point in points:
marker = GMarker('POINT(%s %s)' % (point['lng'], point['lat']))
event = GEvent('click',
'function() { location.href = "%s"}' % point['href'])
marker.add_event(event)
markers.append(marker)
google = GoogleMap(center=(0, 0),
zoom=1,
markers=markers,
key=settings.GOOGLE_MAPS_API_PASSWORD)
return google
#add search utility here
def google_map(request):
points = [
{
'lat': '35.42',
'lng': '139.42',
'href': 'http://en.wikipedia.org/wiki/Tokyo'
},
{
'lat': '51.30',
'lng': '0.73',
'href': 'http://en.wikipedia.org/wiki/London'
},
{
'lat': '40.43',
'lng': '-74.0',
'href': 'http://en.wikipedia.org/wiki/New_York_City'
},
{
'lat': '34.03',
'lng': '-118.15',
'href': 'http://en.wikipedia.org/wiki/Los_Angeles'
},
{
'lat': '36.774402',
'lng': '-119.755405',
'href': 'http://en.wikipedia.org/wiki/Fresno'
},
]
markers = []
for point in points:
marker = GMarker('POINT(%s %s)' % (point['lng'], point['lat']))
event = GEvent('click',
'function() { location.href = "%s"}' % point['href'])
marker.add_event(event)
markers.append(marker)
google = GoogleMap(center=(0, 0),
zoom=1,
markers=markers,
key=settings.GOOGLE_MAPS_API_PASSWORD)
return render(request, 'rango/google_map.html', {'google': google})
def gmap(self):
"""return a gmap object that we can use in templates"""
gmap = cache.get('place_%s_gmap' % (self.id))
if not gmap:
area_polygons = []
area_markers = []
districts = self.in_districts()
for district in districts:
try:
area = district.area.difference(district.area.difference(self.area)) # find the part of the district that is inside the place ( district - (district - area))
except Exception, e:
# the above sometimes flips out with a geometry error with particularly odd shapes. (See flagstaff.)
# in that case, get the bounding box for an area and use that as the cut-out shape instead.
area = district.area.difference(district.area.difference(self.area.envelope))
icon = GIcon('district_%d' % district.id, '/images/markers/district_markers%d.png' % district.id, iconsize=(29, 32), iconanchor=(0,32), shadow='/images/markers/shadow_fake.png')
if area.area > 0.0005:
try:
gp = GPolygon(area, stroke_color="#000", fill_color=district.color, fill_opacity="0.2")
area_polygons.append(gp)
# if the centroid is not on the surface of the shape, get a point on the surface
if area.centroid.within(area):
marker = GMarker(area.centroid, icon=icon)
else:
marker = GMarker(area.point_on_surface, icon=icon)
event = GEvent('click',
'function() { location.href = "%s"}' % ( district.get_absolute_url() ))
marker.add_event(event)
print("check %s %s" % (district.id, area.area))
area_markers.append(marker)
except Exception, e:
if area.centroid.within(area):
marker = GMarker(area.centroid, icon=icon)
else:
marker = GMarker(area.point_on_surface, icon=icon)
event = GEvent('click',
'function() { location.href = "%s"}' % ( district.get_absolute_url() ))
marker.add_event(event)
area_markers.append(marker)
for poly in area:
try:
gp = GPolygon(poly, stroke_color="#000", fill_color=district.color, fill_opacity="0.2")
area_polygons.append(gp)
print("check %s %s" % (district.id, poly.area))
except Exception, e:
print e
def find_weather_stations(request):
if request.method == 'POST':
form = SearchForm(request.POST)
if form.is_valid():
location = urllib.quote_plus(form.cleaned_data['location'])
request_url = "http://maps.google.com/maps/geo?q=%s&output=%s&key=%s" % (location, "csv", settings.GOOGLE_MAPS_API_KEY)
data = urllib.urlopen(request_url).read()
dlist = data.split(',')
if dlist[0] == '200':
point = Point((float(dlist[3]), float(dlist[2])),)
else:
point = None
markers = []
if point:
marker = GMarker(point, request.POST['location'])
marker.add_event(GEvent('click', 'function() { geodjango.map_marker1.openInfoWindowHtml("%s") }' % form.cleaned_data['location']))
# the gis.maps.google.* stuff doesn't allow for ^^^^^ dynamic naming of these - with multiple points, it will be
# necessary to for loop through the points with your own counter (start from zero) and that should coincide with
# the template forloop counter being used - but by all means cross-check that every time to make sure it's right.
markers.append(marker)
weather_stations = find_nearest_weather_stations(point, qty=10)
count = 2
for station in weather_stations:
marker = GMarker(station.point, '%s %s' % (station.code, station.get_name()))
marker.add_event(GEvent('click', 'function() { geodjango.map_marker%s.openInfoWindowHtml("%s"); }' % \
(count, "%s, (altitude %s ft.) - %s mi @ %s deg""" \
% (station.code, floatformat(m_to_ft(station.elevation), 0), floatformat(station.distance.mi, 2), floatformat(rad_to_deg(station.azimuth))))
))
markers.append(marker)
count = count + 1
map = GoogleMap(key=settings.GOOGLE_MAPS_API_KEY, markers=markers)
return render_to_response('locationfinder.html', {
'location': form.cleaned_data['location'],
'location_point': point,
'google': map,
'weather_stations': weather_stations,
})
else:
return render_to_response('locationfinder.html', {
'location': location,
})
else:
return render_to_response('locationfinder.html', {'form': form,})
else:
form = SearchForm()
return render_to_response('locationfinder.html', {'form': form,})
def __init__(self,
key=None,
api_url=None,
version=None,
center=None,
zoom=None,
dom_id='map',
load_func='gmap_load',
kml_urls=[],
polygons=[],
polylines=[],
markers=[],
template='gis/google/js/google-map.js',
extra_context={}):
# The Google Maps API Key defined in the settings will be used
# if not passed in as a parameter. The use of an API key is
# _required_.
if not key:
try:
self.key = settings.GOOGLE_MAPS_API_KEY
except AttributeError:
raise GoogleMapException(
'Google Maps API Key not found (try adding GOOGLE_MAPS_API_KEY to your settings).'
)
else:
self.key = key
# Getting the Google Maps API version, defaults to using the latest ("2.x"),
# this is not necessarily the most stable.
if not version:
self.version = getattr(settings, 'GOOGLE_MAPS_API_VERSION', '2.x')
else:
self.version = version
# Can specify the API URL in the `api_url` keyword.
if not api_url:
self.api_url = mark_safe(
getattr(settings, 'GOOGLE_MAPS_URL', GOOGLE_MAPS_URL) %
self.version)
else:
self.api_url = api_url
# Setting the DOM id of the map, the load function, the JavaScript
# template, and the KML URLs array.
self.dom_id = dom_id
self.load_func = load_func
self.template = template
self.kml_urls = kml_urls
# Does the user want any GMarker, GPolygon, and/or GPolyline overlays?
self.polygons, self.polylines, self.markers = [], [], []
if markers:
for point in markers:
if isinstance(point, GMarker):
self.markers.append(point)
else:
self.markers.append(GMarker(point))
if polygons:
for poly in polygons:
if isinstance(poly, GPolygon):
self.polygons.append(poly)
else:
self.polygons.append(GPolygon(poly))
if polylines:
for pline in polylines:
if isinstance(pline, GPolyline):
self.polylines.append(pline)
else:
self.polylines.append(GPolyline(pline))
# If GMarker, GPolygons, and/or GPolylines
# are used the zoom will be automatically
# calculated via the Google Maps API. If both a zoom level and a
# center coordinate are provided with polygons/polylines, no automatic
# determination will occur.
self.calc_zoom = False
if self.polygons or self.polylines or self.markers:
if center is None or zoom is None:
self.calc_zoom = True
# Defaults for the zoom level and center coordinates if the zoom
# is not automatically calculated.
if zoom is None: zoom = 4
self.zoom = zoom
if center is None: center = (0, 0)
self.center = center
# Setting the parameters for the javascript template.
params = {
'calc_zoom': self.calc_zoom,
'center': self.center,
'dom_id': self.dom_id,
'kml_urls': self.kml_urls,
'load_func': self.load_func,
'zoom': self.zoom,
'polygons': self.polygons,
'polylines': self.polylines,
'markers': self.markers,
}
params.update(extra_context)
self.js = render_to_string(self.template, params)
