|
| __init__ (self, filename, mode="r", **__) |
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| __contains__ (self, key) |
| Returns whether bag contains given topic.
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| __next__ (self) |
| Retrieves next message from bag as (topic, message, timestamp).
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| autodetect (cls, filename) |
| Returns whether file is readable as ROS1 bag.
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| close (self) |
| Closes the bag file.
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| get_end_time (self) |
| Returns the end time of the bag, as UNIX timestamp, or None if bag empty.
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| get_message_class (self, typename, typehash=None) |
| Returns rospy message class for typename, or None if unknown message type for bag.
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| get_message_count (self, topic_filters=None) |
| Returns the number of messages in the bag.
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| get_message_definition (self, msg_or_type) |
| Returns ROS1 message type definition full text from bag, including subtype definitions.
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| get_message_type_hash (self, msg_or_type) |
| Returns ROS1 message type MD5 hash, or None if unknown message type for bag.
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| get_start_time (self) |
| Returns the start time of the bag, as UNIX timestamp, or None if bag empty.
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| get_topic_info (self, *_, **__) |
| Returns topic and message type metainfo as {(topic, typename, typehash): count}.
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| get_type_and_topic_info (self, topic_filters=None) |
| Returns thorough metainfo on topic and message types.
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| open (self) |
| Opens the bag file if not already open.
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| read_messages (self, topics=None, start_time=None, end_time=None, raw=False) |
| Yields messages from the bag, optionally filtered by topic and timestamp.
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| __bool__ (self) |
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| __contains__ (self, key) |
| Returns whether bag contains given topic.
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| __copy__ (self) |
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| __deepcopy__ (self, memo=None) |
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| __enter__ (self) |
| Context manager entry, opens bag if not open.
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| __exit__ (self, exc_type, exc_value, traceback) |
| Context manager exit, closes bag.
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| __getitem__ (self, key) |
| Returns an iterator yielding messages from the bag in given topic, supporting len().
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| __iter__ (self) |
| Iterates over all messages in the bag.
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| __len__ (self) |
| Returns the number of messages in the bag.
|
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| __next__ (self) |
| Retrieves next message from bag as (topic, message, timestamp).
|
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| __nonzero__ (self) |
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| __str__ (self) |
| Returns informative text for bag, with a full overview of topics and types.
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| close (self) |
| Closes the bag file.
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| flush (self) |
| Ensures all changes are written to bag file.
|
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| get_end_time (self) |
| Returns the end time of the bag, as UNIX timestamp, or None if bag empty.
|
|
| get_message_class (self, typename, typehash=None) |
| Returns ROS message type class, or None if unknown message type for bag.
|
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| get_message_count (self, topic_filters=None) |
| Returns the number of messages in the bag.
|
|
| get_message_definition (self, msg_or_type) |
| Returns ROS message type definition full text, including subtype definitions.
|
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| get_message_type_hash (self, msg_or_type) |
| Returns ROS message type MD5 hash, or None if unknown message type for bag.
|
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| get_qoses (self, topic, typename) |
| Returns topic Quality-of-Service profiles as a list of dicts, or None if not available.
|
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| get_start_time (self) |
| Returns the start time of the bag, as UNIX timestamp, or None if bag empty.
|
|
| get_topic_info (self, counts=True) |
| Returns topic and message type metainfo as {(topic, typename, typehash): count}.
|
|
| get_type_and_topic_info (self, topic_filters=None) |
| Returns thorough metainfo on topic and message types.
|
|
| open (self) |
| Opens the bag file if not already open.
|
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| read_messages (self, topics=None, start_time=None, end_time=None, raw=False, **__) |
| Yields messages from the bag, optionally filtered by topic and timestamp.
|
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| write (self, topic, msg, t=None, raw=False, **kwargs) |
| Writes a message to the bag.
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|
|
tuple | MODES = ("r", ) |
| Supported opening modes.
|
|
str | ROSBAG_MAGIC = b"#ROSBAG" |
| ROS1 bag file header magic start bytes.
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bool | STREAMABLE = False |
| Whether bag supports reading or writing stream objects, overridden in subclasses.
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|
| BagMessage = collections.namedtuple("BagMessage", "topic message timestamp") |
| Returned from read_messages() as (topic name, ROS message, ROS timestamp object).
|
|
tuple | MODES = ("r", "w", "a") |
| Supported opening modes, overridden in subclasses.
|
|
| next |
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bool | STREAMABLE = True |
| Whether bag supports reading or writing stream objects, overridden in subclasses.
|
|
| TopicTuple |
| Returned from get_type_and_topic_info() as (typename, message count, connection count, median frequency).
|
|
| TypesAndTopicsTuple = collections.namedtuple("TypesAndTopicsTuple", ["msg_types", "topics"]) |
| Returned from get_type_and_topic_info() as ({typename: typehash}, {topic name: TopicTuple}).
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|
embag reader interface, providing most of rosbag.Bag interface.
Definition at line 26 of file embag.py.