I am working on a project of 3D plots, and on objective is to create a UFO spaceship that has a curved shape that resembles a conical shape, but also has couple of equally-spaced square windows on its sides as shown on the uploaded photo. I have managed to create the shape neglecting the windows by first finding the function that the curve of the surface follows on the side view, creating a thin outer layer of the surface with the function 'cylinder' ([x y z] = cylinder(function of side curve), then defining the z values for different layers of the cylindrical shape). The issues I am now facing are:
1. How can I make square holes on the position of the windows?
2. How can I "fill" the interior of the spaceship with a solid surface as it normally is rather than an empty space?