id command

Syntax

sketch segment id i <keyword ...>

Primary keywords:

control-point    group    ratio    ratio-reverse    size    split    type

Modify a single segment by ID.

control-point keyword

add <local> v3 <v3 ...>

Add one or more control points at locations v3, a 3D coordinate vector (\(u, v, w\)). If local is used, then the locations are in a coordinate system defined by the segment, where \(x\) goes from end 1 at 0.0 to end 2 at 1.0, and \(y\) is normal to that.

clear

Remove all control points.

move i <local> v3

Move the control point with index i to location v3, a 3D coordinate vector (\(u, v, w\)). If local is used, then the segment local coordinate system is used (see add above).

remove i <i ...>

Remove one or more control points.

group s1 <slot s2 > <remove>

Assign the group name s1 in slot s2 (if supplied) to the segment. The segment is removed from the group/slot if remove is present. If the slot keyword is omitted, the slot is set the slot named Default.

ratio f

Set the ratio f (a number between 0.1 and 10.1), which is used to distribute zone lengths along the segment (each zone will be f of the size of the zone preceding it).

ratio-reverse

Reverse the ratio direction.

size i

Set the number of zones on the segment.

split <keyword>

Split the segment at a specified location.

by-point v

Split the segment at the point specified by v.

by-control-point i

Split the segment at the control point with index i.

by-line v1 v2

Split the segment at its intersection with the line defined by points v1 and v2.

by-ray vo vd

Split the segment at its intersection with the ray defined by origin point vo and direction vd.

type keyword

Specify the curve type of the segment.

arc

polyline

simple

This is the default type (a line).

curve (represented by a B-spline)