def get_image(self):
"""
Grab a frame from the camera. The cameraCommunicator is the caller,
and is responsible for lighting and location. The filename of the
image is returned.
Raises:
FatalCameraException: An image was not taken successfully.
"""
#create the systematic filename
timestamp = datetime.datetime.now()
filename = utils.get_image_dir() + str(timestamp.date()) + \
str(timestamp.hour) + str(timestamp.minute) + \
str(timestamp.second) + '.jpg'
#A series of reads to allow the camera to adjust to lighting
self.cam.read()
self.cam.read()
self.cam.read()
self.cam.read()
#only the last is saved
success, image = self.cam.read()
if not success:
raise FatalCameraException()
else:
imwrite(filename, image)
return timestamp, filename
def get_image(self):
"""
Grab a frame from the camera. The cameraCommunicator is the caller,
and is responsible for lighting and location. The filename of the
image is returned.
Raises:
FatalCameraException: An image was not taken successfully.
"""
#create the systematic filename
timestamp = datetime.datetime.now()
filename = utils.get_image_dir() + str(timestamp.date()) + \
str(timestamp.hour) + str(timestamp.minute) + \
str(timestamp.second) + '.jpg'
#A series of reads to allow the camera to adjust to lighting
self.cam.read()
self.cam.read()
self.cam.read()
self.cam.read()
#only the last is saved
success, image = self.cam.read()
if not success:
raise FatalCameraException()
else:
imwrite(filename, image)
return timestamp, filename
def __init__(self, router, r_id):
"""
Creates the camera communicator and ensures the image directory exists.
Args:
router: A reference to the router that this receiver is associated with.
r_id: The string that the router refers to this receiver with.
"""
super(CameraReceiver, self).__init__(router, r_id)
self._photo_dir = utils.get_image_dir()
self._camera_comm = CameraCommunicator()
if not os.path.isdir(self._photo_dir):
self.router.create_transaction(origin = self.r_id,
to_id = "filemanager",
command = "mkdir",
command_args = self._photo_dir)
def __init__(self, router, r_id,
app_name = "My super-duper Flickr app", flickr_auth = None):
"""
Initialize the image directory name, and ensure it exists. Sets up the
interface with the Flickr API.
Args:
router: A reference to the router that this receiver is associated with.
r_id: The string that the router refers to this receiver with.
"""
super(FlickrReceiver, self).__init__(router, r_id)
self._photo_dir = utils.get_image_dir()
self.flickr = FlickrCommunicator()
if not os.path.isdir(self._photo_dir):
self.router.create_transaction(origin = self.r_id,
to_id = "filemanager",
command = "mkdir",
command_args = self._photo_dir)
