I am trying to create a sleeve for my draft and I was wondering if there was a way I could select specific points (imagine an arc) between the established anchor points of the armhole curve. For example, I’m looking to select the curve portion between A32 and s5’. I need the length for a part of the sleeve I’m drafting. I noticed in the Edit Length dialog under the Lenght of Curves radio button the curve is shown as split into segments. Does this have a bearing on what I’m looking for?

# Select a portion of a curve between specific anchor points

Hi @LordRey

Yes, that’s it exactly. If you drew your curve in an anti-clockwise direction, Seg_1 should be the portion of curve from A11 to A16, and Seg_5 should be A32 to y2 and Seg_6 would be y2 to s5, so you’d be wanting to add Seg_5 and Seg_6 to get the measurement from A32 to s5.

Hello @Grace,

Thank you for responding. I actually figured it out after a while. And yes your answer was close. Here’s what I found out:

The curve tool segments a curve according to the number of *original anchor points* used to create the curve. In my case I used **A11, A16, x6, A32, y2, A31,** and **A30**. The points **s4** and **s5’** came from lines that intersect the curve *after* the curve was made.

So in my case, there are six segments corresponding to

**A11 - A16 —segment 1****A16 - x6 —segment 2****x6 - A32 —segment 3****A32 - y2 —segment 4****y2 - A31 —segment 5****A31 - A30 —segment 6**

Note that when points **s4** and **s5’** Intersected the curve Seamly created the curve lengths **A11 - s4, s4 - A30** and **A11 - s5’, s5’ - A30**. (These additional curve lengths are not shown in the picture I posted above)

Now here’s the fun part :smile: getting the measurement of any portion of the curve is a simple matter of common sense addition and subtraction.

So how did I get the length of curve **A32 - s5’**?

I simply subtracted curve length **s5’ - A30** from the sum of **segments 5 and 6** of the curve.

Aaaaaahhhh… Very well done and thank you for the detailed explanation. I’m sure it will help future users