Connectors are used to represent a link between two nodes. They are usually a line drawn from one connection port in a node to another. Line connectors are used to represent a logical flow or connection between the nodes of a diagram. Setting up such a connection will keep the connectors docked to the nodes when the nodes are moved around. Essential Diagram provides orthogonal, Bezier, and straight connectors. You can also draw polylines using intermediate points. Essential Diagram also provides line bridging support that renders a bridge to clearly distinguish orthogonal lines at their points of intersection.
Advanced line routing options to treat some objects as obstacles and avoid interference with them are also available.