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We have the handy rosidl_runtime_py.message_to_csv() method for converting a message to CSV, but is there a similar function that will recursively get the field names so I can print out a CSV header as well?
Solved it!
def recursive_items(ordered_dict):
for key, value in ordered_dict.items():
if type(value) is collections.OrderedDict:
yield from recursive_items(value)
else:
yield (key, value)
def print_headers(record):
print(','.join([key for key, _ in recursive_items(rosidl_runtime_py.message_to_ordereddict(record))]))
I'd missed the API rosidl_runtime_py.message_to_ordereddict() which gives me the message with names and values in a nested OrderedDict, so I iterate over that to pull out the keys from the leaf nodes.
Ohh! I am sorry, but It should be easy you just have collected data in the last and in the end you can store it to CSV. I preferred to use pandas because it is faster the normal way of code.
def write_csv():
df2 = pd.DataFrame()
for name, df in data.items():
df2 = df2.append(df)
df2.to_csv('mydf.csv')
Asked: 2021-09-16 03:44:48 -0500
Seen: 346 times
Last updated: Sep 16 '21
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