# Curve toolbar

##### Catenary

Creates a curve that a hanging chain or cable assumes under its own weight when supported only at its ends.

##### Conic

Draw a conic section curve with options for the start, end, apex, and rho value.

##### Conic, Perpendicular

Draw a conic curve perpendicular at the start.

##### Conic, Tangent at start

Draw a conic curve tangent at the start.

##### Conic, Tangent at start and end

Draw a conic curve tangent at start and end.

##### Curve

Draw a curve from control point locations.

##### CurveThroughPt

Fit a curve through point objects.

##### CurveThroughPolyline, Control point

Creates a control-point curve though polyline vertices.

##### CurveThroughPolyline, Interpolated

Creates an interpolated curve through polyline vertices.

##### HandleCurve

Draw chained Bézier curves with editing handles.

##### Helix

Draw a helical curve with options for number of turns, pitch, vertical, reverse, and around a curve.

##### Helix, Vertical

Draw a vertical helical curve.

##### Hyperbola

Draw a hyperbolic curve from focus points, vertices, or coefficient.

##### InterpCrv

Fit a curve through picked locations.

##### HandleCurve

Draw chained Bézier curves with editing handles.

##### InterpCrvOnSrf

Fit a curve through locations on a surface.

##### Parabola, Focus

Draw a parabolic curve from focus points.

##### Parabola, Vertex

Draw a parabolic curve from vertex and end.

##### Parabola3Pt

Draw a parabolic curve through three picked points.

##### Sketch

Drag the mouse to draw a curve.

##### Sketch, on surface

Drag the mouse to draw a curve on a selected surface.

##### Sketch, on mesh

Drag the mouse to draw a curve on a selected mesh object.

##### Spiral

Draw a spiral curve with options for number of turns, pitch, flat, vertical, and around a curve.

##### Spiral, Flat

Draw a flat spiral curve.

##### TweenCurves

Create curves between two open or closed input curves.

Rhinoceros 6 © 2010-2020 Robert McNeel & Associates. 11-Nov-2020