Edge (horizontal and vertical connection)

Meaning

The Edge (horizontal and vertical connection) is used to connect transitions and places with a horizontal or vertical line.

A petri net edge is directed. The direction depicts the flow of tokens.

This shape layouts automatically when connected with both ends. It will choose a vertical or horizontal layout and connect to the appropriate connection points.

Utilization

Input Boxes

When you select the shape, it will show you its available input boxes. The gray description texts show the meaning of those boxes.

To enter text, click a second time (after selecting the shape), now on the desired input box, and finally start typing to overwrite or press F2 to edit an existing text. After you have entered text, the gray descriptions will no longer be visible.

Condition:	The condition which must be fulfilled in order to pass this edge (a condition is only suitable if the source of the edge is a place and the sink is a transition).
Arc weight:	The number of tokens which pass this edge (i.e. a replacement for "arc weight" number of edges with the same source and sink).

(Note: These texts only appear when the FMC Support Tools >= 2.0 add-in is installed. With an older version or no installed add-in there will be colored boxes.)

Control Points

A )	moves the position of the condition text box
B )	moves the position of the arc weight text box

Context Menu

Depending on the layout, whether the edge is horizontally or vertically, you can set the alignment. Accordingly there is always only one of the following shown in the context menu.

		Align Top - The shape will be aligned at the top end-point.
		Align Center - The shape will be aligned at the center (always shown by the dotted line).
		Align Bottom - The shape will be aligned at the bottom end-point.

		Align Left - The shape will be aligned at the left end-point.
		Align Center - The shape will be aligned at the center (always shown by the dotted line).
		Align Right - The shape will be aligned at the right end-point.

The shape can be automatically (this is the default setting) or manually layouted. To control this, use the context menu as well: