def new_linked_map(request, smapid, snapshot=None, template='maps/map_view.html'):
"""
The view that returns the map composer opened to
the map with the given map ID.
"""
smap=StaticMap.objects.filter(id=smapid)
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
m = Map()
user = request.user
m.owner = user
m.title = 'GISMap_%s' % smap[0].title
m.abstract = DEFAULT_ABSTRACT
m.projection = "EPSG:900913"
m.zoom = 0
m.center_x = 0
m.center_y = 0
m.save()
smap.update(linked_map=m.id)
if snapshot is None:
config = m.viewer_json(request.user, *DEFAULT_BASE_LAYERS)
else:
config = snapshot_config(snapshot, m, request.user)
return render_to_response(template, RequestContext(request, {
'config': json.dumps(config),
'map': m
}))
def layerController(request, layername):
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
layer = get_object_or_404(Layer, typename=layername)
if (request.META['QUERY_STRING'] == "describe"):
return _describe_layer(request,layer)
if (request.META['QUERY_STRING'] == "remove"):
return _removeLayer(request,layer)
if (request.META['QUERY_STRING'] == "update"):
return _updateLayer(request,layer)
if (request.META['QUERY_STRING'] == "style"):
return _changeLayerDefaultStyle(request,layer)
else:
if not request.user.has_perm('maps.view_layer', obj=layer):
return HttpResponse(loader.render_to_string('401.html',
RequestContext(request, {'error_message':
_("You are not permitted to view this layer")})), status=401)
metadata = layer.metadata_csw()
maplayer = MapLayer(name = layer.typename, ows_url = settings.GEOSERVER_BASE_URL + "wms")
# center/zoom don't matter; the viewer will center on the layer bounds
map = Map(projection="EPSG:900913")
qualityRecord = layer.qualitymatrix
return render_to_response('quality/layer.html', RequestContext(request, {
"layer": layer,
"metadata": metadata,
"viewer": json.dumps(map.viewer_json(* (DEFAULT_BASE_LAYERS + [maplayer]))),
"permissions_json": _perms_info_json(layer, LAYER_LEV_NAMES),
"GEOSERVER_BASE_URL": settings.GEOSERVER_BASE_URL,
"qualityRecord": qualityRecord
}))
def search(request):
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
#DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
# for non-ajax requests, render a generic search page
params = dict(request.REQUEST)
map = Map(projection="EPSG:900913", zoom=1, center_x=0, center_y=0)
# Default Counts to 0, JS will Load the Correct Counts
counts = {"map": 0, "layer": 0, "vector": 0, "raster": 0, "contact": 0, "group": 0}
return render_to_response("search/search.html", RequestContext(request, {
"init_search": json.dumps(params),
#'viewer_config': json.dumps(map.viewer_json(added_layers=DEFAULT_BASE_LAYERS, authenticated=request.user.is_authenticated())),
"viewer_config": json.dumps(map.viewer_json(*DEFAULT_BASE_LAYERS)),
"GOOGLE_API_KEY": settings.GOOGLE_API_KEY,
"site": settings.SITEURL,
"counts": counts,
"keywords": Layer.objects.gn_catalog.get_all_keywords()
}))
def new_map_config(request):
'''
View that creates a new map.
If the query argument 'copy' is given, the initial map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
'''
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
if request.method == 'GET' and 'copy' in request.GET:
mapid = request.GET['copy']
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase')
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated():
map_obj.owner = request.user
config = map_obj.viewer_json(request.user)
del config['id']
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return HttpResponse(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection="EPSG:900913")
layers = []
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["srs"] = layer.srid
config["title"] = layer.title
config["bbox"] = [
float(coord) for coord in bbox] if layer.srid == "EPSG:4326" else llbbox_to_mercator(
[
float(coord) for coord in bbox])
config["queryable"] = True
if layer.storeType == "remoteStore":
service = layer.service
maplayer = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": service.base_url,
"name": service.name}))
else:
maplayer = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True
)
layers.append(maplayer)
if bbox is not None:
minx, miny, maxx, maxy = [float(c) for c in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(
request.user, *(DEFAULT_BASE_LAYERS + layers))
config['fromLayer'] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
def new_map_config(request):
'''
View that creates a new map.
If the query argument 'copy' is given, the initial map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
'''
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
if 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
if request.method == 'GET' and 'copy' in request.GET:
mapid = request.GET['copy']
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase')
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated():
map_obj.owner = request.user
config = map_obj.viewer_json(request.user, access_token)
del config['id']
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return HttpResponse(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:900913'))
layers = []
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings, 'DEFAULT_MAP_CRS', 'EPSG:900913')
config["bbox"] = bbox if config["srs"] != 'EPSG:900913' \
else llbbox_to_mercator([float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlparse.urlsplit(ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlparse.urlsplit(service.base_url).netloc
if access_token and ogc_server_url == service_url and 'access_token' not in service.base_url:
url = service.base_url+'?access_token='+access_token
else:
url = service.base_url
maplayer = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": url,
"name": service.name}))
else:
ogc_server_url = urlparse.urlsplit(ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlparse.urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and 'access_token' not in layer.ows_url:
url = layer.ows_url+'?access_token='+access_token
else:
url = layer.ows_url
maplayer = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(config, cls=DjangoJSONEncoder),
visibility=True
)
layers.append(maplayer)
if bbox is not None:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings, 'DEFAULT_MAP_CRS', 'EPSG:900913') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(
request.user, access_token, *(DEFAULT_BASE_LAYERS + layers))
config['fromLayer'] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
def _create_viewer_config():
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
_map = Map(projection="EPSG:900913", zoom = 1, center_x = 0, center_y = 0)
return json.dumps(_map.viewer_json(*DEFAULT_BASE_LAYERS))
def new_map_config(request):
"""
View that creates a new map.
If the query argument 'copy' is given, the initial map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
"""
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
if request.method == "GET" and "copy" in request.GET:
mapid = request.GET["copy"]
map_obj = _resolve_map(request, mapid, "maps.view_map")
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated():
map_obj.owner = request.user
config = map_obj.viewer_json()
del config["id"]
else:
if request.method == "GET":
params = request.GET
elif request.method == "POST":
params = request.POST
else:
return HttpResponse(status=405)
if "layer" in params:
bbox = None
map_obj = Map(projection="EPSG:900913")
layers = []
for layer_name in params.getlist("layer"):
try:
layer = Layer.objects.get(typename=layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm("layers.view_layer", obj=layer):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
layers.append(
MapLayer(
map=map_obj,
name=layer.typename,
ows_url=ogc_server_settings.public_url + "wms",
layer_params=json.dumps(layer.attribute_config()),
visibility=True,
)
)
if bbox is not None:
minx, miny, maxx, maxy = [float(c) for c in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
center = forward_mercator((x, y))
if center[1] == float("-inf"):
center[1] = 0
if maxx == minx:
width_zoom = 15
else:
width_zoom = math.log(360 / (maxx - minx), 2)
if maxy == miny:
height_zoom = 15
else:
height_zoom = math.log(360 / (maxy - miny), 2)
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(*(DEFAULT_BASE_LAYERS + layers))
config["fromLayer"] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
def get_context_data(self, **kwargs):
request = self.request
if request and 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
snapshot = self.kwargs.get('snapshot')
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
layers = Layer.objects.all()
if request.method == 'GET' and 'copy' in request.GET:
"""Prepare context data."""
request = self.request
mapid = self.request.GET['copy']
map_obj = _resolve_map(
request, mapid, 'base.view_resourcebase', _PERMISSION_MSG_VIEW)
if snapshot is None:
config = map_obj.viewer_json(request)
else:
config = snapshot_config(snapshot, map_obj, request)
# list all required layers
map_layers = MapLayer.objects.filter(
map_id=mapid).order_by('stack_order')
context = {
'config': json.dumps(config),
'create': False,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(
settings,
'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'')
}
return context
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return self.render_to_response(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(
settings, 'DEFAULT_MAP_CRS', 'EPSG:3857'))
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = min(bbox[1], layer_bbox[1])
bbox[2] = max(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings,
'DEFAULT_MAP_CRS', 'EPSG:3857')
config["bbox"] = bbox if config["srs"] != 'EPSG:3857' \
else llbbox_to_mercator(
[float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.remote_service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlparse.urlsplit(
service.base_url).netloc
if access_token and ogc_server_url == service_url and \
'access_token' not in service.base_url:
url = '%s?access_token=%s' % (service.base_url, access_token)
else:
url = service.base_url
map_layers = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": url,
"name": service.name,
"title": "[R] %s" % service.title}))
else:
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlparse.urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and \
'access_token' not in layer.ows_url:
url = layer.ows_url + '?access_token=' + \
access_token
else:
url = layer.ows_url
map_layers = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(
config,
cls=DjangoJSONEncoder),
visibility=True
)
if bbox and len(bbox) >= 4:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings,
'DEFAULT_MAP_CRS', 'EPSG:3857') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
map_obj.handle_moderated_uploads()
if snapshot is None:
config = map_obj.viewer_json(request)
else:
config = snapshot_config(snapshot, map_obj, request)
config['fromLayer'] = True
context = {
'config': json.dumps(config),
'create': True,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(
settings,
'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'')
}
else:
# list all required layers
layers = Layer.objects.all()
context = {
'create': True,
'layers': layers
}
return context
def new_map_config(request):
'''
View that creates a new map.
If the query argument 'copy' is given, the inital map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
'''
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
if request.method == 'GET' and 'copy' in request.GET:
mapid = request.GET['copy']
map_obj = _resolve_map(request, mapid, 'maps.view_map')
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated(): map_obj.owner = request.user
config = map_obj.viewer_json()
del config['id']
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return HttpResponse(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection="EPSG:900913")
layers = []
for layer_name in params.getlist('layer'):
try:
layer = Layer.objects.get(typename=layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm('maps.view_layer', obj=layer):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
layers.append(
MapLayer(map=map_obj,
name=layer.typename,
ows_url=settings.GEOSERVER_BASE_URL + "wms",
layer_params=json.dumps(layer.attribute_config()),
visibility=True))
if bbox is not None:
minx, maxx, miny, maxy = [float(c) for c in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
center = forward_mercator((x, y))
if center[1] == float('-inf'):
center[1] = 0
if maxx == minx:
width_zoom = 15
else:
width_zoom = math.log(360 / (maxx - minx), 2)
if maxy == miny:
height_zoom = 15
else:
height_zoom = math.log(360 / (maxy - miny), 2)
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(*(DEFAULT_BASE_LAYERS + layers))
config['fromLayer'] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
def new_map_config(request):
'''
View that creates a new map.
If the query argument 'copy' is given, the initial map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
'''
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config()
if request.method == 'GET' and 'copy' in request.GET:
mapid = request.GET['copy']
if not mapid.isdigit():
map_obj = _resolve_map_custom(
request,
mapid,
'urlsuffix',
'base.view_resourcebase')
else:
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase')
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated():
map_obj.owner = request.user
config = map_obj.viewer_json(request.user)
del config['id']
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return HttpResponse(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection="EPSG:900913")
layers = []
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["srs"] = layer.srid
config["title"] = layer.title
config["bbox"] = [
float(coord) for coord in bbox] if layer.srid == "EPSG:4326" else llbbox_to_mercator(
[
float(coord) for coord in bbox])
config["queryable"] = True
if layer.storeType == "remoteStore":
service = layer.service
maplayer = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": service.base_url,
"name": service.name}))
else:
maplayer = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True
)
layers.append(maplayer)
if bbox is not None:
minx, miny, maxx, maxy = [float(c) for c in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(
request.user, *(DEFAULT_BASE_LAYERS + layers))
config['fromLayer'] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
def get_context_data(self, **kwargs):
request = self.request
if 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
snapshot = self.kwargs.get('snapshot')
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
layers = Layer.objects.all()
if request.method == 'GET' and 'copy' in request.GET:
"""Prepare context data."""
request = self.request
mapid = self.request.GET['copy']
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase',
_PERMISSION_MSG_VIEW)
if snapshot is None:
config = map_obj.viewer_json(request.user, access_token)
else:
config = snapshot_config(snapshot, map_obj, request.user,
access_token)
# list all required layers
map_layers = MapLayer.objects.filter(
map_id=mapid).order_by('stack_order')
context = {
'config': json.dumps(config),
'create': False,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(settings, 'LAYER_PREVIEW_LIBRARY', '')
}
return context
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return self.render_to_response(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857'))
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = min(bbox[1], layer_bbox[1])
bbox[2] = max(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857')
config["bbox"] = bbox if config["srs"] != 'EPSG:3857' \
else llbbox_to_mercator(
[float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlparse.urlsplit(
service.base_url).netloc
if access_token and ogc_server_url == service_url and \
'access_token' not in service.base_url:
url = service.base_url + \
'?access_token=' + access_token
else:
url = service.base_url
map_layers = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype":
service.ptype,
"remote":
True,
"url":
url,
"name":
service.name
}))
else:
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlparse.urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and \
'access_token' not in layer.ows_url:
url = layer.ows_url + '?access_token=' + \
access_token
else:
url = layer.ows_url
map_layers = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(config,
cls=DjangoJSONEncoder),
visibility=True)
if bbox is not None:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx)**2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny)**2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
map_obj.handle_moderated_uploads()
if snapshot is None:
config = map_obj.viewer_json(request.user, access_token)
else:
config = snapshot_config(snapshot, map_obj, request.user,
access_token)
config['fromLayer'] = True
context = {
'config': json.dumps(config),
'create': True,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(settings, 'LAYER_PREVIEW_LIBRARY', '')
}
else:
# list all required layers
layers = Layer.objects.all()
context = {'create': True, 'layers': layers}
return context
def new_map_config(request):
'''
View that creates a new map.
If the query argument 'copy' is given, the initial map is
a copy of the map with the id specified, otherwise the
default map configuration is used. If copy is specified
and the map specified does not exist a 404 is returned.
'''
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
if 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
if request.method == 'GET' and 'copy' in request.GET:
mapid = request.GET['copy']
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase')
map_obj.abstract = DEFAULT_ABSTRACT
map_obj.title = DEFAULT_TITLE
if request.user.is_authenticated():
map_obj.owner = request.user
config = map_obj.viewer_json(request.user, access_token)
del config['id']
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return HttpResponse(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:900913'))
layers = []
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = max(bbox[1], layer_bbox[1])
bbox[2] = min(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings, 'DEFAULT_MAP_CRS', 'EPSG:900913')
config["bbox"] = bbox if config["srs"] != 'EPSG:900913' \
else llbbox_to_mercator([float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlparse.urlsplit(ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlparse.urlsplit(service.base_url).netloc
if access_token and ogc_server_url == service_url and 'access_token' not in service.base_url:
url = service.base_url+'?access_token='+access_token
else:
url = service.base_url
maplayer = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": url,
"name": service.name}))
else:
ogc_server_url = urlparse.urlsplit(ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlparse.urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and 'access_token' not in layer.ows_url:
url = layer.ows_url+'?access_token='+access_token
else:
url = layer.ows_url
maplayer = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(config, cls=DjangoJSONEncoder),
visibility=True
)
layers.append(maplayer)
if bbox is not None:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings, 'DEFAULT_MAP_CRS', 'EPSG:900913') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
config = map_obj.viewer_json(
request.user, access_token, *(DEFAULT_BASE_LAYERS + layers))
config['fromLayer'] = True
else:
config = DEFAULT_MAP_CONFIG
return json.dumps(config)
