When I inquire about the length of a line (Distance), it doesn't show me any dimension, except when the line itself is longer than 1 meter. I think it is a matter of setting the precision, but how?Any help out there?

Rik set DDUNITS precision ( and units ) and when you ask a LIST you will have the same precision.
If you set a dimension you will have the precision of your DDIM settings.
OK for you ?philippe JOSEPH2014-05-22 15:23:57