In anticipation of the much awaited API for creating our own Smart Shapes, I present The Dimensioned Line: Dimensioned Line.xar.

instructions for Use
Double click on the digits of the smaller, striped line under the Pale blue bars.
This changes the tool to the QuickShape Tool.

Click-drag the indicated blue control point to the left to shorten the line.
Click-drag the indicated blue control point to the right to lengthen the line.
The Pale Blue bars are 100px up to 500px wide.

What not to Do
Flip the line horizontally.
Shrink it to below zero.

Nota Bene
It isn't really a new Smart Shape.
Can you work out what it is and how I made it?
And..., it's not that accurate. can anyone help on this part? The left and right parts must Snap to Objects.
It is, however, on my API to-do list.

Acorn