[Laci1959]

Hello.

I downloaded Peter's PRR T1 6111 steam locomotive. I got stuck at the ORTSSteamEngines block. The ORTSSteamEngines block can contain one or more Steam ( ) blocks. The value of AttachedAxle ( 0 ) in the Steam ( ) block is as follows in the manual
" ``AttachedAxle`` - the axle wheelset that the steam engine is attached to. "
According to the machine translator, here you need the number of the shaft to which the crank is connected. This is the fourth axis. If I count only the driven and connected axles, then the second axle. According to the downloaded example locomotive, this number is a simple serial numbering, which starts from zero and increases continuously. Each Steam ( ) block gets a higher number by one.
What is the truth?

Sincerely, Laci 1959

[darwins]

For steam engine #1:

AttachedAxle( 0 )

refers to the first group of parts listed in the wag section of the file

    	Wheelset(
    		Axle(
          	AnimatedParts( "WHEELS1, WHEELS2, ROD01E, ROD01A, ROD01G, ROD2A, ROD2E, ROD2G" )
          	Weight ( 134040lb )
          	ORTSRadius ( 40.0in )
          	NumberWheelsetAxles ( 2 )
         	 
        	)

For steam engine #2:

AttachedAxle( 1 )

refers to the second group of parts listed in the wag section of the file

    		Axle(
          	AnimatedParts( "WHEELS3, WHEELS4, ROD3E, ROD3A, ROD3G, ROD4A, ROD4E, ROD4G" )
          	Weight ( 133800lb )
          	ORTSRadius ( 40.0in )
          	NumberWheelsetAxles ( 2 )
        	)