Unlike the forms of constant curvature introduced in Grid Aliens, another class of circular-based forms have their specific curvature actively determined by cubodal prism angles to make them code consistent.

The simplest forms in this class are cones. In keying a conical slope to one of the cubodal 7, selection is made according to the function of the structure and its place in a particular grid. Conical forms may be truncated, and they may also be keyed to the 7 angles' mirror image negatives.

The next form in this class - the ellipse - features a cubodal angle keyed to the line between its characteristic points of maximum (90°) and minimum (0°) slopes corresponding to its major and minor axes, i.e., cubodal angles expressed as ratios are keyed to the ratio of these axes' lengths. For example, the √2 : 1 slope corresponding to 35° is keyed to the ellipse's diameter-to-height ratio. This form is then sectioned radially and spun 360° to form a half ellipsoidal dome with a vertical (90°) ground ring tangent, regardless of angle used.

Cubodal angles may also be keyed to unique points of minimum slope that characterize vertical waves. As with horizontal waves, vertical waves are logically divided into 1/4 wave parts. In the case of quarter waves, ground terminating angles may be either their minimum or maximum (90˚) sloped ends. By keying minimum slopes to the disc's steepest angles, vertical waves attain maximum height-to-area ratios in tower design.

Aside from habitation, towers aptly elevate mechanical (vertical-axis wind turbines), hydraulic (water), and the functionality reflected by the Cuboda EM Wave Model, topic 3 of Extra-topographic Guidelines.