What are item graphs
In Alloy, items are connected to other items via link attributes with the link originating from the parent item to the child item. Designs allow you to define a meaning to these links as graph types such as Component, Lookup or Report.
Graph types within standard designs are pre-defined.
Alloy provides you with a way to graphically visualise items by means of item graphs. The graph types allow you to view the relationship between an item and other items, for example components and sub-components or defects, inspections and jobs. There are many types of item graphs depending on the type of item that you are viewing.
Accessing item graphs
When you select an item the Item details panel only lists the first level of components that are directly associated with the item as part of the related design. You can use the item graphs to view the links to other items for a selected item.
- Select an item so you can see its details in the Item details panel, see Searching or Selecting items from the map. The graph button appears at the top centre of the map display and is linked to the item that you have selected.
The colour of the graph button is dependent on the colour setting of the item that you have selected.
- Select the icon on the right of the graph button. The graph displays the default graph for the item that you selected. If the item selected contains components then they are displayed with links to illustrate the relationship between the components.
Select button to close the graph.
Alternatively, select the icon to the right of the graph description to change the graph type.
Panning a graph
Graphs are only displayed in the map area. Some graphs may be wider than the maps display window, you can click and drag the graph to view the parts of the graph that are not immediately visible within the map display window.
Viewing component item details
An item graph allows you to select any item within the graph to view its details. The graph changes to display the default graph for the selected component or item and displays the details in the Item details panel, by default the selected item’s General details are displayed.
Select an item and open the graph to display the item and any linked components.
You can select a component in the item graph to view the component graph and its details in the Item details panel on the right.
You can use the browser arrow to return to the original item graph and details and select a different component.
Multiple component clusters
Where an item has more than one component or link to an item of the same type, for example tasks within a project, then the items are clustered in one icon with a number that identifies how many items are within the cluster.
When you select the cluster icon a list of the items appears. You can scroll the list if necessary to access the component that you want to examine. Selecting the component item displays the graph for the selected component or item and displays the details in the Item details panel, by default the selected item’s General details are displayed.