public override object Clone()
{
CylinderSurfaceData clone = new CylinderSurfaceData();
clone.startPoint = this.startPoint;
clone.endPoint = this.endPoint;
clone.angle = this.angle;
return(clone);
}
public override SnapSurfaceData Mirror()
{
CylinderSurfaceData mirror = Clone() as CylinderSurfaceData;
return(mirror);
}