GLOSSARY
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.
Bézier: provide handles, but forces the segments into a tangent through the vertex.
Bézier Corner: provides handles, and allows the segments on either side of the vertex to be any angle.