GstarCAD 2027 · Command Reference
Commands > R Command > REVSURF
Function Description:
This command is used to create meshes by revolving the outlines around axes.
Users
can create meshes by selecting lines, arcs, circles, 2D or 3D polylines. They
can also revolve them by a specified axis along the sweep trace.
The MESHTYPE system variable can specify the mesh type. By default, it is set to 0 for creating polyface or polygon meshes.
The meshes density is controlled by the SURFTAB1 and SURFTAB2 system variables.
The SURFTAB1 system variable specifies mesh lines numbers on the revolving
direction. If the path curve is
a line, arc, circle or polyline that a spline-fit, the SURFTAB2 system variable
divides the path curve by the specified mesh lines numbers. If the path curve is a polyline
without fitted by a spline, the meshes are created at the endpoint of the line
and each arc segment is divided into the specified numbers by the SURFTAB2 system variable.
Command Access:
Icon:
Menu: Draw > Modeling > Meshes > Revolved Mesh
Ribbon: 3D > Mesh > Revolved Surface
Toolbar: /
Command: REVSURF
Alias: /
Command Prompts:
Select objects to rotate:
Selects lines, arcs, circles, 2D or 3D polylines.
Selects a line or open 2D or 3D polyline to define the axis of revolution. The axis direction can not be parallel to the plane of the original object.
The object is swept around an selected axis to create meshes. Users can create closed meshes by selecting a circle or closed polyline as path curve. The axis of revolution is determined by the vector that defined by the first vertex directs to the end vertex, all middle vertices are ignored.
Specifies a start angle, the object is swept from this angle offset to create meshes.
Specifies an included angle, the object is rotated around a specified axis by this angle. Entering an angle less than 360°, it avoids creating a closed circle.
The rotation direction is influenced by the selected point on the axis of
revolution.
On the following are two examples:
Related References：
Related Tasks：
Article ID: 3522
Created: September 26, 2026
Last Updated: September 25, 2026
Author: kbadmin
Online URL: https://kb.gstarcad.com.my/article/revsurf-command-gstarcad-2027-3522.html
