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1 | initial version |
There is no predefined message to do this easily. You can do what @praskot suggested, or go one of many other ways. (Note, you can always check the other common_msgs if you want to use one of the generic types ones)
In general, it is, however, advised to add semantic meaning to messages and thus stay away from the std_msgs
package as much as possible. See also #q255674.
All in all, you have to create your own message type. The following are just some ways to do that, in addition to what @praskot suggested:
KeyValueLists.msg
std_msgs/String[] keys
std_msgs/String[] values
Dictionary.msg
(using a message from the diagnostic_msgs package
diagnostic_msgs/KeyValue[] items
of course, you could that create yourself too, if you don't want to depend on the diagnostic_msgs
package
KeyValueString.msg
std_msgs/String key
std_msgs/String value
and thus:
StringDictionary.msg
KeyValueString[] items
(obviously, the names are free to choose...)
2 | No.2 Revision |
There is no predefined message to do this easily. You can do what @praskot suggested, or go one of many other ways. (Note, you can always check the other common_msgs if you want to use one of the generic types ones)
In general, it is, however, advised to add semantic meaning to messages and thus stay away from the std_msgs
package as much as possible. See also #q255674.
All in all, you have to create your own message type. The following are just some ways to do that, in addition to what @praskot suggested:
KeyValueLists.msg
std_msgs/String[] keys
std_msgs/String[] values
Dictionary.msg
(using a message from the diagnostic_msgs packagepackage)
diagnostic_msgs/KeyValue[] items
of course, you could that create yourself too, if you don't want to depend on the diagnostic_msgs
package
KeyValueString.msg
std_msgs/String key
std_msgs/String value
and thus:
StringDictionary.msg
KeyValueString[] items
(obviously, the names are free to choose...)