Modo Walkthrough: Primitives 2: Ellipsoid, cylinder, capsule, arc, and cone.

Ellipsoid Variables:
The ellipsoid is similar in character to the sphere, but allows for a flatter top surface which can be controlled by the two unique attributes for this primitive: Bulge top and Side

Bulge
Bulge makes the top and the bottom of the sphere more squared off.

Bulge comparision
Bulge comparision

Side
Side makes the sides of the sphere more squared off.

Side comparison
Side comparison

Cylinder
The cylinder has no unique variables.

A cylinder, included here for completion
A cylinder, included here for completion

Capsule Variables
The capsule is a pill shaped object which has a few unique variables that relate to the curved tips.

End segments
The end segments variable lets you determine how many additional polygons will be added to the curved tip.

End segment variable comparison
End segment variable comparison

End Size
This determines how far out the tip of the capsule will extend out.

End size value comparison
End size value comparison

Arc Variables
The arc primitive allows you to create a circle with a specific angle cut out from it. I suspect it has limited uses except for projects which require a pie chart or something related to engineering.

The primitive created is a flat 2D polygon which can be drawn to a specific angle using the angle variable. Other than that, the variables are all the same as with the previous primitives.

The reverse tickbox allows you to change the angle from, for example, 90 to 270 without changing any other variables.

Arc primitive
Arc primitive

The variables can be changed on the modelling grid using the blue pull handles shown in the image above.

After 180 degrees the normals for the arc invert.

Cone
The cylinder has no unique variables.

Cone primitive, added here for completion
Cone primitive, added here for completion