Please note: Not every corpus supports secondary edges and secondary edge
labels.
Creating
Edges represent graph relations: dominance and precedence (cf. section 6, chapter III). An edge can be created between two existing nodes. To create a dominance edge you have to select a lower dominance plug of a node (cf. subsection 4.3) and a second partner node. It is also possible to do this in inverse order by first selecting an upper dominance plug and a second node as the start node of the relation.
Figure: Dominance edges are created by clicking on dominance plugs.
To create a precedence edge you have to first select a right precedence plug or, to do it in inverse order, a left precedence plug and afterwards another node.
Figure: Precedence edges are created by clicking on the precedence plugs.
The type of the created edge (i.e. direct or non-direct, negated or not negated) depends on the preselection, which can be set in the toolbar (cf. subsection 4.6). After creating an edge, the type can be changed in the edge menu.
Multiple selection and creation
Two or more nodes or plugs can be selected by holding down the SHIFT or CTRL key while clicking. This can be used to create more than one edge simultaneously (see figure below).
Figure: By pressing the SHIFT or CTRL key two or more nodes or plugs can be selected.
Dominance
Figure: The menu of a dominance (left) and direct dominance (right) edge.
The first item of the edge menu is for deleting. The following three menu items provide functions to change the type of an edge after creating it.
Figure: Distance specification (left) and edge label (right).
Left/right corner
If the end node of the (direct) dominance relation is a token, three additional edge menu items are available for the optional corner specification (cf. subsection 6.2, chapter III). Left or right corners are visualized with black filled triangles (see figure below).
Figure: The menu items for corner specification.
Horizontal edges
Beside the dominance relation there are two more relations. With the precedence relation you can specify the horizontal order and distance between nodes. Secondary edges are often used as a kind of additional dominance relation. Secondary edges are not supported by all corpora.
Figure: The menu of a precedence, direct precedence, and secondary edge.
The first menu item can be used to delete the edge. Below there are four (three if
the current corpus does not support secondary edges) items to choose the
type of the edge and to negate it (see figure above). If the edge type is
precedence, input fields for either the exact distance value or a
distance range can be enabled by choosing either the Distance is
... or Distance range from ... to ... menu item. The values can
be changed by either typing in a new value or by pressing the increase or
decrease buttons, which are shown at the right of the input field when the
mouse cursor is over the input field or the input field is activated.
Please note: Not every corpus supports secondary edges and secondary edge
labels.