Extend

Menu access: Curve | extend

Description:

Allows you to extend a curve.

General philosophy:

Select the curve on the side to extend.

Available Option(s) :

You can modify the extension length.

You can choose the extension mode with the option  Mode = EXTEND LENGTH / TOTAL LENGTH .

The option allows you to choose the way to extend the curve:

• CURVATURE: the curve curvature is constant.

• TANGENT: the segment is tangent to the curve.

• EXACT: take in consideration the lasts points, the inflexion point and the curvature to extend the curve.

Example(s):

a- Curvature extend.

b- Tangent extend.

Specific point(s):

When using the EXACT mode, the real length of the extension is approximately the one given by the user, except for a line or an are of which the value is exactly respected.

When the curvature has an undefined radius, the curvature option has no effect (i.e.: on a line).

Limitation(s):

It's impossible to extend a closed curve.