Convert

Toolbar Menu

Arc
Curve Tools
Lines

Curve

Convert

<Options>

The Convert command changes the structure of a curve to polyline or arc segments.

Steps

  1. Select curves to convert.
  2. Select options.
Command-line options

Output

Arcs

Converts the curve to arc segments. Sections of curves that are nearly straight are converted to straight-line segments.

Lines

Converts the curve to polyline segments.

SimplifyInput

Yes

Combines co-linear line segments and co-circular arc segments.

Simplifying ensures that NURBS curves that consist of arc and line segments are split into proper arc and line segments making the conversion to arcs and lines more accurate.

The simplification step is done using the absolute and angle tolerance, not the custom tolerance settings set in the command.

No

Use in cases where simplifying is too aggressive and converts normal NURBS curves into arcs or lines to get a more accurate answer.

DeleteInput

Yes

Deletes the original geometry.

No

Retains the original geometry.

AngleTolerance

The maximum angle between segments at endpoints, overriding the system tolerance setting.

Specify 0 (zero) to allow non-tangent arcs. The output will have kinks, but since it consists of arc segments, there will be fewer segments than if the Lines option was used. This is useful for approximating a curve with the smallest number of segments.

Tolerance

The tolerance at segment midpoints, overriding the system tolerance setting.

MinLength

The minimum segment length. Specify 0 (zero) for no minimum limit.

MaxLength

The maximum segment length. Specify 0 (zero) for no maximum limit.

OutputLayer

Specifies the layer for the results of the command.

Current

Places the results on the current layer.

Input

Places the results on the same layer as the input curve.

Note: If the input object is in a model that is attached using Worksession, the object will be placed on the current layer.

TargetObject

Places the results on the same layer as the target surface.

SubCrv

Type subcrv to select part of a curve as input.

ConvertToBeziers

Toolbar Menu

Not on toolbars.

Not on menus.

The ConvertToBeziers command changes the structure of a NURBS curve or surface to a Bézier curve or surface.

Steps

  1. Select the objects.
  2. Choose either to keep or to delete the input objects.

See also

Edit curves

 

 

 

Rhinoceros 6 © 2010-2019 Robert McNeel & Associates. 21-Aug-2019