Offset

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Offset Curve

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The Offset command copies a curve so that all locations on the copied curve are a specified distance from the original curve.

Steps

Select a curve or edge.
Click on one side the curve.
For best results, use proportionately small offset distances and smooth curves; otherwise, you may get kinks and doubled-back curves.

Command-line options
Distance	Sets the offset distance.
Corner	Specifies how offset corner continuity handled. These options only apply if the offset direction is to the "outside" as shown in the image. Original curve (blue). Offset to outside (red). Offset to inside (green). Sharp Curves offset to the outside of a corner will be extended to meet at sharp corners with position (G0) continuity. Round Curves offset to the outside of a corner will be filled with arc segments with tangent (G1) continuity. Smooth Curves offset to the outside of a corner will be filled with blend segments with curvature (G2) continuity. Chamfer The corners of the offset curves will be filled with a straight line between their endpoints.
ThroughPoint	Offsets through a picked point instead of at a distance.
Tolerance	Sets the tolerance for the offset curve. Type 0 to use the default system tolerance.
BothSides	Offsets the curve on both sides of the input curve.
InCPlane	The curve is offset in the plane of the original curve. This option offsets the curve in the plane of the current construction plane instead.
Cap	Closes the gap at the curve ends. None No closing segments are added. The offset curve goes on the current layer. Flat Straight-line segments are added between the curves and joined. The object goes the same layer as the original. Round Tangent arcs are added between the curves and joined. The object goes the same layer as the original.

See also

OffsetMesh

Copy a mesh parallel to the original.

OffsetCrvOnSrf

Copy a curve on a surface parallel to the original.

OffsetNormal

Copy a curve on a surface parallel to the original in the surface normal direction.

Create curves from other objects

Rhino for Mac © 2010-2017 Robert McNeel & Associates. 24-Oct-2017