The following group codes apply to helix
entities. In addition to the group codes described here, see
Common Group Codes for Entities.
For information about abbreviations and formatting used in this
table, see
Formatting Conventions in This Reference.
Helix group codes
|
Group code
|
Description
|
|
|
Spline data
|
100
|
Subclass marker (AcDbHelix)
|
90
|
Major release number
|
91
|
Maintainance release
number
|
10, 20, 30
|
Axis base point
|
11, 21, 31
|
Start point
|
12, 22, 32
|
Axis vector
|
40
|
Radius
|
41
|
Number of turns
|
42
|
Turn height
|
290
|
Handedness; 0 = left,
1 = right
|
280
|
Constrain type 0 = Constrain turn height 1 = Constrain turns 2 = Constrain height
|
