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 test_save_story_draft(self):
"""
Can save draft story
"""
user = User.objects.create_user(username='******',
email='*****@*****.**',
password='******')
mapstory = MapStory()
self.assertIsInstance(mapstory, MapStory)
mapstory.title = "Test story"
mapstory.owner = user
mapstory.save()
testMap = Map()
testMap.story = mapstory
testMap.zoom = 3
testMap.projection = "EPSG:900913"
testMap.center_x = -7377090.47385893
testMap.center_y = 3463514.6256579063
testMap.owner = user
testMap.save()
def test_save_story_draft(self):
"""
Can save draft story
"""
user = User.objects.create_user(username='******',
email='*****@*****.**',
password='******')
mapstory = MapStory()
self.assertIsInstance(mapstory, MapStory)
mapstory.title = "Test story"
mapstory.owner = user
mapstory.save()
testMap = Map()
testMap.story = mapstory
testMap.zoom = 3
testMap.projection = "EPSG:900913"
testMap.center_x = -7377090.47385893
testMap.center_y = 3463514.6256579063
testMap.owner = user
testMap.save()
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)
map_obj.handle_moderated_uploads()
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'))
if request.user.is_authenticated():
map_obj.owner = request.user
else:
map_obj.owner = get_anonymous_user()
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))
map_obj.handle_moderated_uploads()
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_from_layer_list(user, layers, title, abstract):
newmap = Map()
"""Copied from maps.models and fixed
"""
newmap.owner = user
newmap.title = title
newmap.abstract = abstract
newmap.projection = "EPSG:900913"
newmap.zoom = 0
newmap.center_x = 0
newmap.center_y = 0
#bbox = None
index = 0
incr_bbox = None
DEFAULT_BASE_LAYERS = settings.MAP_BASELAYERS
is_published = True
if settings.RESOURCE_PUBLISHING:
is_published = False
newmap.is_published = is_published
# Save the map in order to create an id in the database
# used below for the maplayers.
newmap.save()
# Add background layers
for layer in DEFAULT_BASE_LAYERS:
logger.info("Adding baselayer %r", layer)
maplayer = layer_from_viewer_config(
MapLayer,
layer,
layer['source'], # source
index)
if not maplayer.group == 'background':
logger.info("Skipping not base layer %r", layer)
continue
if 'name' not in layer or not layer['name']:
logger.info("Unnamed base layer %r", layer)
maplayer.name = 'UNNAMED BACKGROUND LAYER'
maplayer.map = newmap
maplayer.save()
index += 1
# Add local layers
for layer in layers:
if not isinstance(layer, Layer):
try:
layer = Layer.objects.get(typename=layer)
except ObjectDoesNotExist:
raise Exception('Could not find layer with name %s' % layer)
if not user.has_perm('base.view_resourcebase',
obj=layer.resourcebase_ptr):
# invisible layer, skip inclusion or raise Exception?
raise Exception(
'User %s tried to create a map with layer %s without having premissions'
% (user, layer))
### Add required parameters for GXP lazy-loading
# compute (incremental) bbox
layer_bbox = layer.bbox
if incr_bbox is None:
incr_bbox = list(layer_bbox[0:4])
else:
incr_bbox[0] = min(incr_bbox[0], layer_bbox[0])
incr_bbox[1] = max(incr_bbox[1], layer_bbox[1])
incr_bbox[2] = min(incr_bbox[2], layer_bbox[2])
incr_bbox[3] = max(incr_bbox[3], layer_bbox[3])
config = layer.attribute_config()
config["title"] = layer.title
config["queryable"] = True
config[
"srs"] = layer.srid if layer.srid != "EPSG:4326" else "EPSG:900913"
config["bbox"] = llbbox_to_mercator(
[float(coord) for coord in incr_bbox])
#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
#)
MapLayer.objects.create(map=newmap,
name=layer.typename,
ows_url=layer.ows_url,
stack_order=index,
visibility=True,
layer_params=json.dumps(config))
index += 1
# Set bounding box based on all layers extents.
bbox = newmap.get_bbox_from_layers(newmap.local_layers)
newmap.set_bounds_from_bbox(bbox)
newmap.set_missing_info()
# Save again to persist the zoom and bbox changes and
# to generate the thumbnail.
newmap.save()
return newmap
def create_from_layer_list(user, layers, title, abstract):
newmap = Map()
"""Copied from maps.models and fixed
"""
newmap.owner = user
newmap.title = title
newmap.abstract = abstract
newmap.projection = "EPSG:900913"
newmap.zoom = 0
newmap.center_x = 0
newmap.center_y = 0
#bbox = None
index = 0
incr_bbox = None
DEFAULT_BASE_LAYERS = settings.MAP_BASELAYERS
is_published = True
if settings.RESOURCE_PUBLISHING:
is_published = False
newmap.is_published = is_published
# Save the map in order to create an id in the database
# used below for the maplayers.
newmap.save()
# Add background layers
for layer in DEFAULT_BASE_LAYERS:
logger.info("Adding baselayer %r", layer)
maplayer = layer_from_viewer_config(MapLayer,
layer,
layer['source'], # source
index)
if not maplayer.group == 'background':
logger.info("Skipping not base layer %r", layer)
continue
if 'name' not in layer or not layer['name']:
logger.info("Unnamed base layer %r", layer)
maplayer.name = 'UNNAMED BACKGROUND LAYER'
maplayer.map = newmap
maplayer.save()
index += 1
# Add local layers
for layer in layers:
if not isinstance(layer, Layer):
try:
layer = Layer.objects.get(typename=layer)
except ObjectDoesNotExist:
raise Exception(
'Could not find layer with name %s' %
layer)
if not user.has_perm(
'base.view_resourcebase',
obj=layer.resourcebase_ptr):
# invisible layer, skip inclusion or raise Exception?
raise Exception(
'User %s tried to create a map with layer %s without having premissions' %
(user, layer))
### Add required parameters for GXP lazy-loading
# compute (incremental) bbox
layer_bbox = layer.bbox
if incr_bbox is None:
incr_bbox = list(layer_bbox[0:4])
else:
incr_bbox[0] = min(incr_bbox[0], layer_bbox[0])
incr_bbox[1] = max(incr_bbox[1], layer_bbox[1])
incr_bbox[2] = min(incr_bbox[2], layer_bbox[2])
incr_bbox[3] = max(incr_bbox[3], layer_bbox[3])
config = layer.attribute_config()
config["title"] = layer.title
config["queryable"] = True
config["srs"] = layer.srid if layer.srid != "EPSG:4326" else "EPSG:900913"
config["bbox"] = llbbox_to_mercator([float(coord) for coord in incr_bbox])
#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
#)
MapLayer.objects.create(
map=newmap,
name=layer.typename,
ows_url=layer.ows_url,
stack_order=index,
visibility=True,
layer_params=json.dumps(config)
)
index += 1
# Set bounding box based on all layers extents.
bbox = newmap.get_bbox_from_layers(newmap.local_layers)
newmap.set_bounds_from_bbox(bbox)
newmap.set_missing_info()
# Save again to persist the zoom and bbox changes and
# to generate the thumbnail.
newmap.save()
return newmap
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)
map_obj.handle_moderated_uploads()
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'))
if request.user.is_authenticated():
map_obj.owner = request.user
else:
map_obj.owner = get_anonymous_user()
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))
map_obj.handle_moderated_uploads()
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)
