GstarCAD 2027 · System Variables
System Variables > 3D System Variables > 3DOSMODE
Function Description:
The 3DOSMODE system variable is used to control 3D object snap settings.
| Type | Integer |
| Saved in | Registry |
| Initial value | 11 |
| Range | 0 \~ 256 |
System Variable Value:
1: all 3D object snaps are disabled. Shortcut key: ZNON
2: snap a vertex or a control point. Shortcut key: ZVER
4:snap a middle point on a face edge. Shortcut key: ZMID
8:snap the center point on a face. Shortcut key: ZCEN
16: snap a knot of a spline or surface. Shortcut key: ZKNO
32: snap a vertical face(planar faces only). Shortcut key: ZPER
64: snap an object nearest to a face. Shortcut key: ZNEA
128: snap the nearest point on planar segment of point cloud. Shortcut key: PNOD
256: all 3D object snaps are disabled. Shortcut key: PNEA
Note：this system variable can control which 3D object snap enabled. The setting is stored as a bitcode using the sum of listed system variable values. Users can specify more than one object snap by entering the sum of their values. Taking 6 for example, it means to specify the vertex and middle point object snaps.
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Article ID: 2793
Created: September 26, 2026
Last Updated: September 25, 2026
Author: kbadmin
Online URL: https://www.kb2.gstarcad.com.my/article.php?id=2793