How to Dimension Length of Profile in Drawings?

I have a need to include the total "unfolded" length of a sequence of tangential
arcs and lines in drawings.

I know I can get the length of an arc by selecting the arc and its endpoints.

Is there another trick to get the total length of a sequence of lines and arcs
somehow?

Right now I measure it in the part using Tools > Measure and enter it as a note,
but that doesn't update if the model does...

/C

 

My thoughts:

1. If the source of those lines & arcs happen to be attached to a flat
pattern of a sheet metal part, then you can put a dimension in the model and
pull that dimension.

2. If not, then how about putting a dimension on all the segments (make
sure you dimension arc length, not chord length) and then inserting another
sketch line and with an equation, make the length of that line be equal to
the sum of all the others. Then you can use that dimension.

Or, some combination or variation of the above, such as a custom property,
etc.

WT

 

Good input. In my dreams I had wished for a slightly less cumbersome solution, but
thanks anyway!