TraCI/SUMO ID Commands Structure

= General Structure of Plain SUMO ID Commands = All second generation API commands and its answers have the same structure which will be described here.

Value Retrieval Commands
These commands ask SUMO about a special property value of a certain object.

Command to SUMO
The variable depends on the particular command and selects a special value. They are described in the documentation of the particular command. The SUMO ID is the ID of the object from which you want to know the value. Which type of object it belongs to depends on the particular command.

Answer from SUMO
Variable and SUMO ID repeat the values from the command. The return type depends on the variable and can be either a general TraCI data type described here or a special compound type for this variable which is documented with the particular command.

State Change Commands
These commands are the opposites of the value retrieval commands above. They set a certain value of a particular object.

Command to SUMO
Additional to variable and SUMO ID like the value retrieval commands we have a value type and the value itself similar to the answer of the value retrieval commands. The allowed types depend on the variable which itself depends on the command. See documentation of the particular command for details.

Answer from SUMO
The answer to a state change command always consists only of the status response described here. Nothing else will be returned.