# RevSurface.Create examples

Examples for [Create](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.revsurface/create.md) in Rhino.Geometry.RevSurface.

## C#

```cs
using System;
using Rhino.Geometry;

partial class Examples
{
  public static Rhino.Commands.Result AddTruncatedCone(Rhino.RhinoDoc doc)
  {
    Point3d bottom_pt = new Point3d(0,0,0);
    const double bottom_radius = 2;
    Circle bottom_circle = new Circle(bottom_pt, bottom_radius);

    Point3d top_pt = new Point3d(0,0,10);
    const double top_radius = 6;
    Circle top_circle = new Circle(top_pt, top_radius);

    LineCurve shapeCurve = new LineCurve(bottom_circle.PointAt(0), top_circle.PointAt(0));
    Line axis = new Line(bottom_circle.Center, top_circle.Center);
    RevSurface revsrf = RevSurface.Create(shapeCurve, axis);
    Brep tcone_brep = Brep.CreateFromRevSurface(revsrf, true, true);
    if( doc.Objects.AddBrep(tcone_brep) != Guid.Empty )
    {
      doc.Views.Redraw();
      return Rhino.Commands.Result.Success;
    }
    return Rhino.Commands.Result.Failure;
  }
}
```

## Python

```py
import Rhino
import scriptcontext
import System.Guid

def AddTruncatedCone():
    bottom_pt = Rhino.Geometry.Point3d(0,0,0)
    bottom_radius = 2
    bottom_circle = Rhino.Geometry.Circle(bottom_pt, bottom_radius)

    top_pt = Rhino.Geometry.Point3d(0,0,10)
    top_radius = 6
    top_circle = Rhino.Geometry.Circle(top_pt, top_radius)

    shapeCurve = Rhino.Geometry.LineCurve(bottom_circle.PointAt(0), top_circle.PointAt(0))
    axis = Rhino.Geometry.Line(bottom_circle.Center, top_circle.Center)
    revsrf = Rhino.Geometry.RevSurface.Create(shapeCurve, axis)
    tcone_brep = Rhino.Geometry.Brep.CreateFromRevSurface(revsrf, True, True)

    if scriptcontext.doc.Objects.AddBrep(tcone_brep)!=System.Guid.Empty:
        scriptcontext.doc.Views.Redraw()
        return Rhino.Commands.Result.Success
    return Rhino.Commands.Result.Failure

if __name__=="__main__":
    AddTruncatedCone()
```

## VB.NET

```vbnet
Imports Rhino.Geometry

Partial Class Examples
  Public Shared Function AddTruncatedCone(ByVal doc As Rhino.RhinoDoc) As Rhino.Commands.Result
    Dim bottom_pt As New Point3d(0, 0, 0)
    Const bottom_radius As Double = 2
    Dim bottom_circle As New Circle(bottom_pt, bottom_radius)

    Dim top_pt As New Point3d(0, 0, 10)
    Const top_radius As Double = 6
    Dim top_circle As New Circle(top_pt, top_radius)

    Dim shapeCurve As New LineCurve(bottom_circle.PointAt(0), top_circle.PointAt(0))
    Dim axis As New Line(bottom_circle.Center, top_circle.Center)
    Dim revsrf As RevSurface = RevSurface.Create(shapeCurve, axis)
    Dim tcone_brep As Brep = Brep.CreateFromRevSurface(revsrf, True, True)
    If doc.Objects.AddBrep(tcone_brep) <> Guid.Empty Then
      doc.Views.Redraw()
      Return Rhino.Commands.Result.Success
    End If
    Return Rhino.Commands.Result.Failure
  End Function
End Class
```