Extend

The Extend command lengthens or shortens a curve.

Steps

Select a boundary object, type a length, or press Enter to extend without boundary edges.

Select a curve or an surface edge near the end.

The extension will be automatically joined with the original curve.

To extend to multiple objects, pick the end of the curve again to extend the curve beyond the first boundary to the next.

Pick the end of the extension or type a length.

Note

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You can use any combination of curves, surfaces, and solids as boundary edges.

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If you want to extend two curves to meet each other simultaneously, use the Connect command.

Command-line options

Type

Natural

Lines, polylines, and polycurves with a line at the end to extend are extended by line.

Arcs and polycurves with arc at the end to extend are extended by same radius arc.

Other curves are extended smooth.

Arc

Makes an arc extension tangent to the original curve.

Arc Options

Center

Extends a curve with an arc by picking the arc's center and endpoint.

Center steps

Pick the arc's center point.

Pick the arc's end point.

ToPoint

Extends a curve with an arc by picking the arc's endpoint.

ToPoint steps

Pick the arc's end point.

Line

Makes a line extension tangent to the original curve.

Smooth

Makes a smooth curve extension curvature continuous with the original curve.

Undo

The Undo option reverses the last action.