perpendicular - at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height" vertical steep - having a sharp inclination; "the steep attic stairs"; "ste...
If you want a central projection so have a look at my suggestion. I found out that the points are located on the surface of a sphere. So you can use the LOFT- command to make a "3DPYRAMID" (first you need the projection of the entpoints onto a plane - see side ...