Eccentric ConeTube - Printable Version

Code:
var coneMesh = new Ab3d.Meshes.TubeMesh3D(bottomCenterPosition: new Point3D(0, 0, 0), 

                                          heightDirection: new Vector3D(0, 1, 0), 

                                          bottomOuterRadius: 100, 

                                          bottomInnerRadius: 90, 

                                          topOuterRadius: 50, 

                                          topInnerRadius: 40, 

                                          height: 100, 

                                          segments: 30);



var coneMeshGeometry3D = coneMesh.Geometry;



var positions = coneMeshGeometry3D.Positions; // read Positions DependencyProperty only once

int count = positions.Count;



var offsetVector = new Vector3D(-50, 0, 0); // offest top positions by X = -50; this will make the left edge vertical



for (int i = 0; i < count; i++)

{

    if (positions[i].Y > 50) // adjust only top positions (they have Y set to 100, but to avoid using equals on floating point, we just use bigger then 50)

        positions[i] += offsetVector;

}





var geometryModel3D = new GeometryModel3D(coneMeshGeometry3D, new DiffuseMaterial(Brushes.Orange));



MainViewport.Children.Add(geometryModel3D.CreateModelVisual3D());