double measure dynamic attributes

[Gianlucagiangian]

Hello.
I am creating dynamic blocks with attributes that reveal the measure of the moment.
example:
I have to make a track that gives me the measurement in the attribute to be extracted later, stretching it, say for example binary.30, that 30 came out from having stretched the track to 3000mm. It's working.
but if the track was double, that attribute I would like to be out doubled i.e. binary.60, indicating the 6000mm i.e. the track of 3000+3000.
Is it feasible?
I tried by inserting the fields, formulas, but it gives me mistakes ################################################################################################################################################################################################################################################

Thank you.

 

[lattu]

if you attach the block we can analyze it and find the error, otherwise I see it hard

 

[Gianlucagiangian]

You're actually right.
There he is.
I would like that measure that is currently 15, i.e. referred to the length of 1500mm of track always became double, considering also the other track. the best would be if the data went out in meters, that is for a double track of 1500mm, gave the measure 3.0

 

[prismacad]

have you tried to insert the data field as formula and in the window (dx key) insert a data field again object (track length) and multiply for 2?
press the evaluation button to get the result.

 

[lattu]

or in the additional format change the conversion factor to 0.002 and set a 1 decimal accuracy to double the result and display it in meters

 

[Gianlucagiangian]

Now I try again, that of 0.002 conversion I didn't think about it, that instead of the data yes, but it gives me in the rating always ############################################################################################################################################################################################################################### now I repeat

 

[Gianlucagiangian]

I was wrong with a ride. I found it. Thank you.