Vectors are secondary control points connected to vertices on a spline or patch object. They are also referred to as handles or vector handles.

Vector handles are visible as small green squares when you select a vertex. However, if the Vectors filter is checked (for a patch object), handles can be selected and transformed without selecting a vertex first. A transform cursor appears when you move onto a vector.

Each vertex in a shape can be one of four types:

Smooth—Forces the segments into a smooth curve tangent to the vertex.

Corner—Allows the segments on either side of the vertex to be at any angle.

Bezier—Provide handles, but forces the segments into a tangent through the vertex.

Bezier Corner—Provides handles, and allows the segments on either side of the vertex to be any angle.