Anchor point (point; Node; End point;)
Anchor points (or simply 'points') are the basic components of a path. Points appear at the start and end of a path and at every point at which the path changes direction. Points connect each line segment and determine the nature of the line's curve. Each point can be moved to adjust the shape of the path. Points can be added or removed from existing paths.
Six anchor points connecting six line segments to create a closed path
Bézier curve (Curve)
A curved segment of a path is known as a Bézier curve (after French mathematician Pierre Bézier). Bézier curves are defined by mathematical equations - essentially, the coordinates of a curve can be calculated and drawn by knowing the position of two end points and two control points.
Cap
The cap refers to the end of an open path, and the cap style can usually be one of three types: butt cap, round cap, or projecting cap (aka square cap).
Control handle (Control point)
Control handles appear when a path's anchor point is selected. Control handles give greater control and flexibility over how each point and line segment is placed, and allow fine-tuning of the overall shape of the path.
Moving the control handles affects the shape of the path
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