Fixed #26697 -- Removed contrib.gis.maps.

This commit is contained in:
Tim Graham 2016-09-15 16:15:02 -04:00
parent 727d7ce6cb
commit 5a51b44936
12 changed files with 4 additions and 927 deletions

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"""
This module houses the GoogleMap object, used for generating
the needed javascript to embed Google Maps in a Web page.
Google(R) is a registered trademark of Google, Inc. of Mountain View, California.
Example:
* In the view:
return render(request, 'template.html', {'google': GoogleMap(key="abcdefg")})
* In the template:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
{{ google.xhtml }}
<head>
<title>Google Maps via GeoDjango</title>
{{ google.style }}
{{ google.scripts }}
</head>
{{ google.body }}
<div id="{{ google.dom_id }}" style="width:600px;height:400px;"></div>
</body>
</html>
Note: If you want to be more explicit in your templates, the following are
equivalent:
{{ google.body }} => "<body {{ google.onload }} {{ google.onunload }}>"
{{ google.xhtml }} => "<html xmlns="http://www.w3.org/1999/xhtml" {{ google.xmlns }}>"
{{ google.style }} => "<style>{{ google.vml_css }}</style>"
Explanation:
- The `xhtml` property provides the correct XML namespace needed for
Google Maps to operate in IE using XHTML. Google Maps on IE uses
VML to draw polylines. Returns, by default:
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
- The `style` property provides the correct style tag for the CSS
properties required by Google Maps on IE:
<style type="text/css">v\:* {behavior:url(#default#VML);}</style>
- The `scripts` property provides the necessary <script> tags for
including the Google Maps javascript, as well as including the
generated javascript.
- The `body` property provides the correct attributes for the
body tag to load the generated javascript. By default, returns:
<body onload="gmap_load()" onunload="GUnload()">
- The `dom_id` property returns the DOM id for the map. Defaults to "map".
The following attributes may be set or customized in your local settings:
* GOOGLE_MAPS_API_KEY: String of your Google Maps API key. These are tied
to a domain. May be obtained from https://developers.google.com/maps/
* GOOGLE_MAPS_API_VERSION (optional): Defaults to using "2.x"
* GOOGLE_MAPS_URL (optional): Must have a substitution ('%s') for the API
version.
"""
from django.contrib.gis.maps.google.gmap import GoogleMap, GoogleMapSet
from django.contrib.gis.maps.google.overlays import (
GEvent, GIcon, GMarker, GPolygon, GPolyline,
)
from django.contrib.gis.maps.google.zoom import GoogleZoom
__all__ = [
'GoogleMap', 'GoogleMapSet', 'GEvent', 'GIcon', 'GMarker', 'GPolygon',
'GPolyline', 'GoogleZoom',
]

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from __future__ import unicode_literals
from django.conf import settings
from django.contrib.gis.maps.google.overlays import (
GMarker, GPolygon, GPolyline,
)
from django.template.loader import render_to_string
from django.utils.html import format_html
from django.utils.safestring import mark_safe
from django.utils.six.moves import range
class GoogleMapException(Exception):
pass
# The default Google Maps URL (for the API javascript)
# TODO: Internationalize for Japan, UK, etc.
GOOGLE_MAPS_URL = 'http://maps.google.com/maps?file=api&v=%s&key='
class GoogleMap(object):
"A class for generating Google Maps JavaScript."
# String constants
onunload = mark_safe('onunload="GUnload()"') # Cleans up after Google Maps
vml_css = mark_safe('v\:* {behavior:url(#default#VML);}') # CSS for IE VML
xmlns = mark_safe('xmlns:v="urn:schemas-microsoft-com:vml"') # XML Namespace (for IE VML).
def __init__(self, key=None, api_url=None, version=None,
center=None, zoom=None, dom_id='map',
kml_urls=[], polylines=None, polygons=None, markers=None,
template='gis/google/google-map.js',
js_module='geodjango',
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 = 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.extra_context = extra_context
self.js_module = js_module
self.template = template
self.kml_urls = kml_urls
# Does the user want any GMarker, GPolygon, and/or GPolyline overlays?
overlay_info = [[GMarker, markers, 'markers'],
[GPolygon, polygons, 'polygons'],
[GPolyline, polylines, 'polylines']]
for overlay_class, overlay_list, varname in overlay_info:
setattr(self, varname, [])
if overlay_list:
for overlay in overlay_list:
if isinstance(overlay, overlay_class):
getattr(self, varname).append(overlay)
else:
getattr(self, varname).append(overlay_class(overlay))
# 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
def render(self):
"""
Generates the JavaScript necessary for displaying this Google Map.
"""
params = {'calc_zoom': self.calc_zoom,
'center': self.center,
'dom_id': self.dom_id,
'js_module': self.js_module,
'kml_urls': self.kml_urls,
'zoom': self.zoom,
'polygons': self.polygons,
'polylines': self.polylines,
'icons': self.icons,
'markers': self.markers,
}
params.update(self.extra_context)
return render_to_string(self.template, params)
@property
def body(self):
"Returns HTML body tag for loading and unloading Google Maps javascript."
return format_html('<body {} {}>', self.onload, self.onunload)
@property
def onload(self):
"Returns the `onload` HTML <body> attribute."
return format_html('onload="{}.{}_load()"', self.js_module, self.dom_id)
@property
def api_script(self):
"Returns the <script> tag for the Google Maps API javascript."
return format_html('<script src="{}{}" type="text/javascript"></script>',
self.api_url, self.key)
@property
def js(self):
"Returns only the generated Google Maps JavaScript (no <script> tags)."
return self.render()
@property
def scripts(self):
"Returns all <script></script> tags required with Google Maps JavaScript."
return format_html('{}\n <script type="text/javascript">\n//<![CDATA[\n{}//]]>\n </script>',
self.api_script, mark_safe(self.js))
@property
def style(self):
"Returns additional CSS styling needed for Google Maps on IE."
return format_html('<style type="text/css">{}</style>', self.vml_css)
@property
def xhtml(self):
"Returns XHTML information needed for IE VML overlays."
return format_html('<html xmlns="http://www.w3.org/1999/xhtml" {}>', self.xmlns)
@property
def icons(self):
"Returns a sequence of GIcon objects in this map."
return set(marker.icon for marker in self.markers if marker.icon)
class GoogleMapSet(GoogleMap):
def __init__(self, *args, **kwargs):
"""
A class for generating sets of Google Maps that will be shown on the
same page together.
Example:
gmapset = GoogleMapSet( GoogleMap( ... ), GoogleMap( ... ) )
gmapset = GoogleMapSet( [ gmap1, gmap2] )
"""
# The `google-multi.js` template is used instead of `google-single.js`
# by default.
template = kwargs.pop('template', 'gis/google/google-multi.js')
# This is the template used to generate the GMap load JavaScript for
# each map in the set.
self.map_template = kwargs.pop('map_template', 'gis/google/google-single.js')
# Running GoogleMap.__init__(), and resetting the template
# value with default obtained above.
super(GoogleMapSet, self).__init__(**kwargs)
self.template = template
# If a tuple/list passed in as first element of args, then assume
if isinstance(args[0], (tuple, list)):
self.maps = args[0]
else:
self.maps = args
# Generating DOM ids for each of the maps in the set.
self.dom_ids = ['map%d' % i for i in range(len(self.maps))]
def load_map_js(self):
"""
Returns JavaScript containing all of the loading routines for each
map in this set.
"""
result = []
for dom_id, gmap in zip(self.dom_ids, self.maps):
# Backup copies the GoogleMap DOM id and template attributes.
# They are overridden on each GoogleMap instance in the set so
# that only the loading JavaScript (and not the header variables)
# is used with the generated DOM ids.
tmp = (gmap.template, gmap.dom_id)
gmap.template = self.map_template
gmap.dom_id = dom_id
result.append(gmap.js)
# Restoring the backup values.
gmap.template, gmap.dom_id = tmp
return mark_safe(''.join(result))
def render(self):
"""
Generates the JavaScript for the collection of Google Maps in
this set.
"""
params = {'js_module': self.js_module,
'dom_ids': self.dom_ids,
'load_map_js': self.load_map_js(),
'icons': self.icons,
}
params.update(self.extra_context)
return render_to_string(self.template, params)
@property
def onload(self):
"Returns the `onload` HTML <body> attribute."
# Overloaded to use the `load` function defined in the
# `google-multi.js`, which calls the load routines for
# each one of the individual maps in the set.
return mark_safe('onload="%s.load()"' % self.js_module)
@property
def icons(self):
"Returns a sequence of all icons in each map of the set."
icons = set()
for map in self.maps:
icons |= map.icons
return icons

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from __future__ import unicode_literals
from functools import total_ordering
from django.contrib.gis.geos import (
LinearRing, LineString, Point, Polygon, fromstr,
)
from django.utils import six
from django.utils.encoding import python_2_unicode_compatible
from django.utils.html import html_safe
@html_safe
@python_2_unicode_compatible
class GEvent(object):
"""
A Python wrapper for the Google GEvent object.
Events can be attached to any object derived from GOverlayBase with the
add_event() call.
For more information please see the Google Maps API Reference:
https://developers.google.com/maps/documentation/javascript/reference#event
Example:
from django.shortcuts import render
from django.contrib.gis.maps.google import GoogleMap, GEvent, GPolyline
def sample_request(request):
polyline = GPolyline('LINESTRING(101 26, 112 26, 102 31)')
event = GEvent('click',
'function() { location.href = "http://www.google.com"}')
polyline.add_event(event)
return render(request, 'mytemplate.html', {
'google': GoogleMap(polylines=[polyline]),
})
"""
def __init__(self, event, action):
"""
Initializes a GEvent object.
Parameters:
event:
string for the event, such as 'click'. The event must be a valid
event for the object in the Google Maps API.
There is no validation of the event type within Django.
action:
string containing a Javascript function, such as
'function() { location.href = "newurl";}'
The string must be a valid Javascript function. Again there is no
validation fo the function within Django.
"""
self.event = event
self.action = action
def __str__(self):
"Returns the parameter part of a GEvent."
return '"%s", %s' % (self.event, self.action)
@html_safe
@python_2_unicode_compatible
class GOverlayBase(object):
def __init__(self):
self.events = []
def latlng_from_coords(self, coords):
"Generates a JavaScript array of GLatLng objects for the given coordinates."
return '[%s]' % ','.join('new GLatLng(%s,%s)' % (y, x) for x, y in coords)
def add_event(self, event):
"Attaches a GEvent to the overlay object."
self.events.append(event)
def __str__(self):
"The string representation is the JavaScript API call."
return '%s(%s)' % (self.__class__.__name__, self.js_params)
class GPolygon(GOverlayBase):
"""
A Python wrapper for the Google GPolygon object. For more information
please see the Google Maps API Reference:
https://developers.google.com/maps/documentation/javascript/reference#Polygon
"""
def __init__(self, poly,
stroke_color='#0000ff', stroke_weight=2, stroke_opacity=1,
fill_color='#0000ff', fill_opacity=0.4):
"""
The GPolygon object initializes on a GEOS Polygon or a parameter that
may be instantiated into GEOS Polygon. Please note that this will not
depict a Polygon's internal rings.
Keyword Options:
stroke_color:
The color of the polygon outline. Defaults to '#0000ff' (blue).
stroke_weight:
The width of the polygon outline, in pixels. Defaults to 2.
stroke_opacity:
The opacity of the polygon outline, between 0 and 1. Defaults to 1.
fill_color:
The color of the polygon fill. Defaults to '#0000ff' (blue).
fill_opacity:
The opacity of the polygon fill. Defaults to 0.4.
"""
if isinstance(poly, six.string_types):
poly = fromstr(poly)
if isinstance(poly, (tuple, list)):
poly = Polygon(poly)
if not isinstance(poly, Polygon):
raise TypeError('GPolygon may only initialize on GEOS Polygons.')
# Getting the envelope of the input polygon (used for automatically
# determining the zoom level).
self.envelope = poly.envelope
# Translating the coordinates into a JavaScript array of
# Google `GLatLng` objects.
self.points = self.latlng_from_coords(poly.shell.coords)
# Stroke settings.
self.stroke_color, self.stroke_opacity, self.stroke_weight = stroke_color, stroke_opacity, stroke_weight
# Fill settings.
self.fill_color, self.fill_opacity = fill_color, fill_opacity
super(GPolygon, self).__init__()
@property
def js_params(self):
return '%s, "%s", %s, %s, "%s", %s' % (self.points, self.stroke_color, self.stroke_weight, self.stroke_opacity,
self.fill_color, self.fill_opacity)
class GPolyline(GOverlayBase):
"""
A Python wrapper for the Google GPolyline object. For more information
please see the Google Maps API Reference:
https://developers.google.com/maps/documentation/javascript/reference#Polyline
"""
def __init__(self, geom, color='#0000ff', weight=2, opacity=1):
"""
The GPolyline object may be initialized on GEOS LineStirng, LinearRing,
and Polygon objects (internal rings not supported) or a parameter that
may instantiated into one of the above geometries.
Keyword Options:
color:
The color to use for the polyline. Defaults to '#0000ff' (blue).
weight:
The width of the polyline, in pixels. Defaults to 2.
opacity:
The opacity of the polyline, between 0 and 1. Defaults to 1.
"""
# If a GEOS geometry isn't passed in, try to construct one.
if isinstance(geom, six.string_types):
geom = fromstr(geom)
if isinstance(geom, (tuple, list)):
geom = Polygon(geom)
# Generating the lat/lng coordinate pairs.
if isinstance(geom, (LineString, LinearRing)):
self.latlngs = self.latlng_from_coords(geom.coords)
elif isinstance(geom, Polygon):
self.latlngs = self.latlng_from_coords(geom.shell.coords)
else:
raise TypeError('GPolyline may only initialize on GEOS LineString, LinearRing, and/or Polygon geometries.')
# Getting the envelope for automatic zoom determination.
self.envelope = geom.envelope
self.color, self.weight, self.opacity = color, weight, opacity
super(GPolyline, self).__init__()
@property
def js_params(self):
return '%s, "%s", %s, %s' % (self.latlngs, self.color, self.weight, self.opacity)
@total_ordering
class GIcon(object):
"""
Creates a GIcon object to pass into a Gmarker object.
The keyword arguments map to instance attributes of the same name. These,
in turn, correspond to a subset of the attributes of the official GIcon
javascript object:
https://developers.google.com/maps/documentation/javascript/reference#Icon
Because a Google map often uses several different icons, a name field has
been added to the required arguments.
Required Arguments:
varname:
A string which will become the basis for the js variable name of
the marker, for this reason, your code should assign a unique
name for each GIcon you instantiate, otherwise there will be
name space collisions in your javascript.
Keyword Options:
image:
The url of the image to be used as the icon on the map defaults
to 'G_DEFAULT_ICON'
iconsize:
a tuple representing the pixel size of the foreground (not the
shadow) image of the icon, in the format: (width, height) ex.:
GIcon('fast_food',
image="/media/icon/star.png",
iconsize=(15,10))
Would indicate your custom icon was 15px wide and 10px height.
shadow:
the url of the image of the icon's shadow
shadowsize:
a tuple representing the pixel size of the shadow image, format is
the same as ``iconsize``
iconanchor:
a tuple representing the pixel coordinate relative to the top left
corner of the icon image at which this icon is anchored to the map.
In (x, y) format. x increases to the right in the Google Maps
coordinate system and y increases downwards in the Google Maps
coordinate system.)
infowindowanchor:
The pixel coordinate relative to the top left corner of the icon
image at which the info window is anchored to this icon.
"""
def __init__(self, varname, image=None, iconsize=None,
shadow=None, shadowsize=None, iconanchor=None,
infowindowanchor=None):
self.varname = varname
self.image = image
self.iconsize = iconsize
self.shadow = shadow
self.shadowsize = shadowsize
self.iconanchor = iconanchor
self.infowindowanchor = infowindowanchor
def __eq__(self, other):
return self.varname == other.varname
def __lt__(self, other):
return self.varname < other.varname
def __hash__(self):
# XOR with hash of GIcon type so that hash('varname') won't
# equal hash(GIcon('varname')).
return hash(self.__class__) ^ hash(self.varname)
class GMarker(GOverlayBase):
"""
A Python wrapper for the Google GMarker object. For more information
please see the Google Maps API Reference:
https://developers.google.com/maps/documentation/javascript/reference#Marker
Example:
from django.shortcuts import render
from django.contrib.gis.maps.google.overlays import GMarker, GEvent
def sample_request(request):
marker = GMarker('POINT(101 26)')
event = GEvent('click',
'function() { location.href = "http://www.google.com"}')
marker.add_event(event)
return render(request, 'mytemplate.html', {
'google': GoogleMap(markers=[marker]),
})
"""
def __init__(self, geom, title=None, draggable=False, icon=None):
"""
The GMarker object may initialize on GEOS Points or a parameter
that may be instantiated into a GEOS point. Keyword options map to
GMarkerOptions -- so far only the title option is supported.
Keyword Options:
title:
Title option for GMarker, will be displayed as a tooltip.
draggable:
Draggable option for GMarker, disabled by default.
"""
# If a GEOS geometry isn't passed in, try to construct one.
if isinstance(geom, six.string_types):
geom = fromstr(geom)
if isinstance(geom, (tuple, list)):
geom = Point(geom)
if isinstance(geom, Point):
self.latlng = self.latlng_from_coords(geom.coords)
else:
raise TypeError('GMarker may only initialize on GEOS Point geometry.')
# Getting the envelope for automatic zoom determination.
self.envelope = geom.envelope
# TODO: Add support for more GMarkerOptions
self.title = title
self.draggable = draggable
self.icon = icon
super(GMarker, self).__init__()
def latlng_from_coords(self, coords):
return 'new GLatLng(%s,%s)' % (coords[1], coords[0])
def options(self):
result = []
if self.title:
result.append('title: "%s"' % self.title)
if self.icon:
result.append('icon: %s' % self.icon.varname)
if self.draggable:
result.append('draggable: true')
return '{%s}' % ','.join(result)
@property
def js_params(self):
return '%s, %s' % (self.latlng, self.options())

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from __future__ import unicode_literals
from math import atan, exp, log, pi, sin
from django.contrib.gis.geos import GEOSGeometry, LinearRing, Point, Polygon
from django.contrib.gis.maps.google.gmap import GoogleMapException
from django.utils.six.moves import range
# Constants used for degree to radian conversion, and vice-versa.
DTOR = pi / 180.
RTOD = 180. / pi
class GoogleZoom(object):
"""
GoogleZoom is a utility for performing operations related to the zoom
levels on Google Maps.
This class is inspired by the OpenStreetMap Mapnik tile generation routine
`generate_tiles.py`, and the article "How Big Is the World" (Hack #16) in
"Google Maps Hacks" by Rich Gibson and Schuyler Erle.
`generate_tiles.py` may be found at:
http://trac.openstreetmap.org/browser/applications/rendering/mapnik/generate_tiles.py
"Google Maps Hacks" may be found at http://safari.oreilly.com/0596101619
"""
def __init__(self, num_zoom=19, tilesize=256):
"Initializes the Google Zoom object."
# Google's tilesize is 256x256, square tiles are assumed.
self._tilesize = tilesize
# The number of zoom levels
self._nzoom = num_zoom
# Initializing arrays to hold the parameters for each one of the
# zoom levels.
self._degpp = [] # Degrees per pixel
self._radpp = [] # Radians per pixel
self._npix = [] # 1/2 the number of pixels for a tile at the given zoom level
# Incrementing through the zoom levels and populating the parameter arrays.
z = tilesize # The number of pixels per zoom level.
for i in range(num_zoom):
# Getting the degrees and radians per pixel, and the 1/2 the number of
# for every zoom level.
self._degpp.append(z / 360.) # degrees per pixel
self._radpp.append(z / (2 * pi)) # radians per pixel
self._npix.append(z / 2) # number of pixels to center of tile
# Multiplying `z` by 2 for the next iteration.
z *= 2
def __len__(self):
"Returns the number of zoom levels."
return self._nzoom
def get_lon_lat(self, lonlat):
"Unpacks longitude, latitude from GEOS Points and 2-tuples."
if isinstance(lonlat, Point):
lon, lat = lonlat.coords
else:
lon, lat = lonlat
return lon, lat
def lonlat_to_pixel(self, lonlat, zoom):
"Converts a longitude, latitude coordinate pair for the given zoom level."
# Setting up, unpacking the longitude, latitude values and getting the
# number of pixels for the given zoom level.
lon, lat = self.get_lon_lat(lonlat)
npix = self._npix[zoom]
# Calculating the pixel x coordinate by multiplying the longitude value
# with the number of degrees/pixel at the given zoom level.
px_x = round(npix + (lon * self._degpp[zoom]))
# Creating the factor, and ensuring that 1 or -1 is not passed in as the
# base to the logarithm. Here's why:
# if fac = -1, we'll get log(0) which is undefined;
# if fac = 1, our logarithm base will be divided by 0, also undefined.
fac = min(max(sin(DTOR * lat), -0.9999), 0.9999)
# Calculating the pixel y coordinate.
px_y = round(npix + (0.5 * log((1 + fac) / (1 - fac)) * (-1.0 * self._radpp[zoom])))
# Returning the pixel x, y to the caller of the function.
return (px_x, px_y)
def pixel_to_lonlat(self, px, zoom):
"Converts a pixel to a longitude, latitude pair at the given zoom level."
if len(px) != 2:
raise TypeError('Pixel should be a sequence of two elements.')
# Getting the number of pixels for the given zoom level.
npix = self._npix[zoom]
# Calculating the longitude value, using the degrees per pixel.
lon = (px[0] - npix) / self._degpp[zoom]
# Calculating the latitude value.
lat = RTOD * (2 * atan(exp((px[1] - npix) / (-1.0 * self._radpp[zoom]))) - 0.5 * pi)
# Returning the longitude, latitude coordinate pair.
return (lon, lat)
def tile(self, lonlat, zoom):
"""
Returns a Polygon corresponding to the region represented by a fictional
Google Tile for the given longitude/latitude pair and zoom level. This
tile is used to determine the size of a tile at the given point.
"""
# The given lonlat is the center of the tile.
delta = self._tilesize / 2
# Getting the pixel coordinates corresponding to the
# the longitude/latitude.
px = self.lonlat_to_pixel(lonlat, zoom)
# Getting the lower-left and upper-right lat/lon coordinates
# for the bounding box of the tile.
ll = self.pixel_to_lonlat((px[0] - delta, px[1] - delta), zoom)
ur = self.pixel_to_lonlat((px[0] + delta, px[1] + delta), zoom)
# Constructing the Polygon, representing the tile and returning.
return Polygon(LinearRing(ll, (ll[0], ur[1]), ur, (ur[0], ll[1]), ll), srid=4326)
def get_zoom(self, geom):
"Returns the optimal Zoom level for the given geometry."
# Checking the input type.
if not isinstance(geom, GEOSGeometry) or geom.srid != 4326:
raise TypeError('get_zoom() expects a GEOS Geometry with an SRID of 4326.')
# Getting the envelope for the geometry, and its associated width, height
# and centroid.
env = geom.envelope
env_w, env_h = self.get_width_height(env.extent)
center = env.centroid
for z in range(self._nzoom):
# Getting the tile at the zoom level.
tile_w, tile_h = self.get_width_height(self.tile(center, z).extent)
# When we span more than one tile, this is an approximately good
# zoom level.
if (env_w > tile_w) or (env_h > tile_h):
if z == 0:
raise GoogleMapException('Geometry width and height should not exceed that of the Earth.')
return z - 1
# Otherwise, we've zoomed in to the max.
return self._nzoom - 1
def get_width_height(self, extent):
"""
Returns the width and height for the given extent.
"""
# Getting the lower-left, upper-left, and upper-right
# coordinates from the extent.
ll = Point(extent[:2])
ul = Point(extent[0], extent[3])
ur = Point(extent[2:])
# Calculating the width and height.
height = ll.distance(ul)
width = ul.distance(ur)
return width, height

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@ -1,12 +0,0 @@
{% load i18n %}<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" {{ gmap.xmlns }}>
<head>
<title>{% block title %}{% trans "Google Maps via GeoDjango" %}{% endblock %}</title>
{{ gmap.style }}
{{ gmap.scripts }}
</head>
<body {{ gmap.onload }} {{ gmap.onunload }}>
{% if gmap.dom_ids %}{% for dom_id in gmap.dom_ids %}<div id="{{ dom_id }}" style="width:600px;height:400px;"></div>{% endfor %}
{% else %}<div id="{{ gmap.dom_id }}" style="width:600px;height:400px;"></div>{% endif %}
</body>
</html>

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@ -1,37 +0,0 @@
{% load l10n %}
{% autoescape off %}
{% localize off %}
{% block vars %}var geodjango = {};{% for icon in icons %}
var {{ icon.varname }} = new GIcon(G_DEFAULT_ICON);
{% if icon.image %}{{ icon.varname }}.image = "{{ icon.image }}";{% endif %}
{% if icon.shadow %}{{ icon.varname }}.shadow = "{{ icon.shadow }}";{% endif %} {% if icon.shadowsize %}{{ icon.varname }}.shadowSize = new GSize({{ icon.shadowsize.0 }}, {{ icon.shadowsize.1 }});{% endif %}
{% if icon.iconanchor %}{{ icon.varname }}.iconAnchor = new GPoint({{ icon.iconanchor.0 }}, {{ icon.iconanchor.1 }});{% endif %} {% if icon.iconsize %}{{ icon.varname }}.iconSize = new GSize({{ icon.iconsize.0 }}, {{ icon.iconsize.1 }});{% endif %}
{% if icon.infowindowanchor %}{{ icon.varname }}.infoWindowAnchor = new GPoint({{ icon.infowindowanchor.0 }}, {{ icon.infowindowanchor.1 }});{% endif %}{% endfor %}
{% endblock vars %}{% block functions %}
{% block load %}{{ js_module }}.{{ dom_id }}_load = function(){
if (GBrowserIsCompatible()) {
{{ js_module }}.{{ dom_id }} = new GMap2(document.getElementById("{{ dom_id }}"));
{{ js_module }}.{{ dom_id }}.setCenter(new GLatLng({{ center.1 }}, {{ center.0 }}), {{ zoom }});
{% block controls %}{{ js_module }}.{{ dom_id }}.setUIToDefault();{% endblock %}
{% if calc_zoom %}var bounds = new GLatLngBounds(); var tmp_bounds = new GLatLngBounds();{% endif %}
{% for kml_url in kml_urls %}{{ js_module }}.{{ dom_id }}_kml{{ forloop.counter }} = new GGeoXml("{{ kml_url }}");
{{ js_module }}.{{ dom_id }}.addOverlay({{ js_module }}.{{ dom_id }}_kml{{ forloop.counter }});{% endfor %}
{% for polygon in polygons %}{{ js_module }}.{{ dom_id }}_poly{{ forloop.counter }} = new {{ polygon }};
{{ js_module }}.{{ dom_id }}.addOverlay({{ js_module }}.{{ dom_id }}_poly{{ forloop.counter }});
{% for event in polygon.events %}GEvent.addListener({{ js_module }}.{{ dom_id }}_poly{{ forloop.parentloop.counter }}, {{ event }});{% endfor %}
{% if calc_zoom %}tmp_bounds = {{ js_module }}.{{ dom_id }}_poly{{ forloop.counter }}.getBounds(); bounds.extend(tmp_bounds.getSouthWest()); bounds.extend(tmp_bounds.getNorthEast());{% endif %}{% endfor %}
{% for polyline in polylines %}{{ js_module }}.{{ dom_id }}_polyline{{ forloop.counter }} = new {{ polyline }};
{{ js_module }}.{{ dom_id }}.addOverlay({{ js_module }}.{{ dom_id }}_polyline{{ forloop.counter }});
{% for event in polyline.events %}GEvent.addListener({{ js_module }}.{{ dom_id }}_polyline{{ forloop.parentloop.counter }}, {{ event }}); {% endfor %}
{% if calc_zoom %}tmp_bounds = {{ js_module }}.{{ dom_id }}_polyline{{ forloop.counter }}.getBounds(); bounds.extend(tmp_bounds.getSouthWest()); bounds.extend(tmp_bounds.getNorthEast());{% endif %}{% endfor %}
{% for marker in markers %}{{ js_module }}.{{ dom_id }}_marker{{ forloop.counter }} = new {{ marker }};
{{ js_module }}.{{ dom_id }}.addOverlay({{ js_module }}.{{ dom_id }}_marker{{ forloop.counter }});
{% for event in marker.events %}GEvent.addListener({{ js_module }}.{{ dom_id }}_marker{{ forloop.parentloop.counter }}, {{ event }}); {% endfor %}
{% if calc_zoom %}bounds.extend({{ js_module }}.{{ dom_id }}_marker{{ forloop.counter }}.getLatLng()); {% endif %}{% endfor %}
{% if calc_zoom %}{{ js_module }}.{{ dom_id }}.setCenter(bounds.getCenter(), {{ js_module }}.{{ dom_id }}.getBoundsZoomLevel(bounds));{% endif %}
{% block load_extra %}{% endblock %}
}else {
alert("Sorry, the Google Maps API is not compatible with this browser.");
}
}
{% endblock load %}{% endblock functions %}{% endlocalize %}{% endautoescape %}

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@ -1,8 +0,0 @@
{% extends "gis/google/google-map.js" %}
{% block functions %}
{{ load_map_js }}
{{ js_module }}.load = function(){
{% for dom_id in dom_ids %}{{ js_module }}.{{ dom_id }}_load();
{% endfor %}
}
{% endblock %}

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@ -1,2 +0,0 @@
{% extends "gis/google/google-map.js" %}
{% block vars %}{# No vars here because used within GoogleMapSet #}{% endblock %}

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@ -382,6 +382,10 @@ Backwards incompatible changes in 1.11
``contrib.gis`` was first released, :ref:`gdalbuild` is now a required ``contrib.gis`` was first released, :ref:`gdalbuild` is now a required
dependency for GeoDjango. In older versions, it's only required for SQLite. dependency for GeoDjango. In older versions, it's only required for SQLite.
* ``contrib.gis.maps`` is removed as it interfaces with a retired version of
the Google Maps API and seems to be unmaintained. If you're using it, `let
us know <https://code.djangoproject.com/ticket/14284>`_.
Database backend API Database backend API
-------------------- --------------------

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@ -1,57 +0,0 @@
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from unittest import skipUnless
from django.contrib.gis.geos import HAS_GEOS
from django.test import SimpleTestCase
from django.test.utils import modify_settings, override_settings
from django.utils.encoding import force_text
GOOGLE_MAPS_API_KEY = 'XXXX'
@skipUnless(HAS_GEOS, 'Geos is required.')
@modify_settings(
INSTALLED_APPS={'append': 'django.contrib.gis'},
)
class GoogleMapsTest(SimpleTestCase):
@override_settings(GOOGLE_MAPS_API_KEY=GOOGLE_MAPS_API_KEY)
def test_google_map_scripts(self):
"""
Testing GoogleMap.scripts() output. See #20773.
"""
from django.contrib.gis.maps.google.gmap import GoogleMap
google_map = GoogleMap()
scripts = google_map.scripts
self.assertIn(GOOGLE_MAPS_API_KEY, scripts)
self.assertIn("new GMap2", scripts)
@override_settings(GOOGLE_MAPS_API_KEY=GOOGLE_MAPS_API_KEY)
def test_unicode_in_google_maps(self):
"""
Test that GoogleMap doesn't crash with non-ASCII content.
"""
from django.contrib.gis.geos import Point
from django.contrib.gis.maps.google.gmap import GoogleMap, GMarker
center = Point(6.146805, 46.227574)
marker = GMarker(center,
title='En français !')
google_map = GoogleMap(center=center, zoom=18, markers=[marker])
self.assertIn("En français", google_map.scripts)
def test_gevent_html_safe(self):
from django.contrib.gis.maps.google.overlays import GEvent
event = GEvent('click', 'function() {location.href = "http://www.google.com"}')
self.assertTrue(hasattr(GEvent, '__html__'))
self.assertEqual(force_text(event), event.__html__())
def test_goverlay_html_safe(self):
from django.contrib.gis.maps.google.overlays import GOverlayBase
overlay = GOverlayBase()
overlay.js_params = '"foo", "bar"'
self.assertTrue(hasattr(GOverlayBase, '__html__'))
self.assertEqual(force_text(overlay), overlay.__html__())