Interactive Kiva: Egg-Plan Shell with True Long-Axis Section

This model separates the geometry honestly. The plan is egg-shaped, so the long-axis section is no longer the same as the short-axis section. The shoulder and crown are joined with a smooth matched continuation rather than a width-blend.

Section shown: Long-axis section Short-axis section

Plan Length

Plan Width

Egg Bias

ratio

Dome Height

Wall Height

Long-axis Catenary a

Short-axis Catenary a

Blend Height

×H

Crown Pull

Long-axis Oculus

Short-axis Oculus

Narrow-End Half-Length

Broad-End Half-Length

Section Mode

Blend Height

For the section you were after, keep Long-axis section selected. That produces a true asymmetric side elevation because the footprint itself is no longer circular.