Lengthen Curve Tool

What it Does

Makes a curve longer by adding an extension to one of its ends. The extension carries on in the same direction and bend as the end of the curve. Use this when a curve needs to run past its current end point.

The extension is a new item with a new end point. The original curve is not changed. The extension is a polyline (a line made of short straight segments), so it has no curve points you can move.

How to Use

1. Activate the tool by clicking the Lengthen Curve icon
2. Select the curve to lengthen, then select Continue
3. Select the end to extend. Change at Start Blue Point extends from the blue point. Change at End Green Point extends from the green point
4. Enter the Distance to extend, in the unit shown, then select Continue
5. Enter a name in the Name box. This names the new end point
6. Choose a color in the Style box
7. Select Save to keep the extension, or Cancel to leave without adding it

info

You can type a number or a formula for the distance. See Entering Values.

info

If the curve cannot be lengthened with that distance, a message appears and nothing changes. Check the distance and try again, or select Cancel.

🧠Memorization

When you memorize a draft, the extension is remembered along with the end you chose and the distance you entered.