Terms and Definitions

Graph - a collection of nodes and the edges that connect them.

Node - a fundamental unit within a graph that can be connected to other nodes via edges.

Port - a specific point on a node where edges can be attached.

Edge - a directed connection between two ports.

Edge Shape - the visual representation of an edge.

Canvas - the background area where the graph is displayed.

Viewport - the visible portion of the canvas.

Port Direction - an angle, measured in radians, that defines the orientation of an edge connected to a port.

Node Center Function - a function that determines how the coordinates of a node are interpreted.

Priority - the z-index value assigned to a node or edge, indicating its layering order.