Rib

The Rib command extrudes a curve in two directions to a boundary surface.

Steps

Select planar curves to rib.

Select a boundary.

Command-line options

Offset

The offset direction relative to the input curve.

InCurvePlane

Use when the input curve describes the rib in plan view.

NormalToCurvePlane

Use when the rib curve describes the rib in elevation view.

Distance

Sets the offset distance.

Mode

Straight

Extrudes the curve straight to the boundary.

Tapered

Extrudes the curves to the boundary with a draft angle.

DraftAngle

Specify the draft angle for the taper.

The draft angle depends on the construction plane orientation. When the surface is vertical/perpendicular to the construction plane, the draft angle is zero. When the surface is parallel to the construction plane, the draft angle is 90 degrees.