About links
Links connect nodes in Source - they link, store and route water passing between nodes. You can only connect nodes using links and you cannot connect two links to each other without an intervening node.
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| Note: Throughout this document, unless explicitly stated otherwise, the term routing means hydrologic routing, not hydraulic routing. |
Using links in Source
Once links have been added a model, several attributes can be edited in a similar way to nodes:
- Node and link default names;
- Renaming nodes and links - once added, links are given default names - refer to ;
- Configuring node and link parameters;
- Adding notes to nodes and links (only for lagged flow routing and storage routing links);
- Searching for nodes and links;
- Deleting nodes and links;
- Node and link default names; and
- Copying and pasting.
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There are two types of links available depending on the nodes you are connecting (refer to Figure 1).
Vertical links are used to connect most nodes. To add this link to a model, first refer to Figure 1 which defines the terminology. To create the link:
- Position the mouse cursor over the upstream node;
- Click and hold on one of its downstream connectors and start dragging;
- When you start dragging the mouse cursor, candidate targets are displayed (as large icons) for the upstream connector of a downstream node; and
- Release the mouse and the link will ‘snap’ into place.
One example of a vertical link is a demand link, which is created when you connect a water user node to a supply point node, and is represented in the Schematic Editor using dashed red lines.
Figure 1. Node connection terminology
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Links are categorised as either:
- Vertical links - used to connect most nodes. One example of a vertical link is a demand link, which is created when you connect a water user node to a supply point node, and is represented in the Schematic Editor using dashed red lines; or
- Horizontal links (or wetland links) - connects the Wetlands Hydraulic Connector node (source) and the Storage node (target) only. The presence of a horizontal link at a storage node indicates that the storage is behaving as a wetland. Figure 2 shows an example of a horizontal link.
The Node Connection Matrix shows the types of links created when you connect different nodes; these are summarised in Table 1.
Table 1. Link icon in Source
| Type of link | Schematic | Example |
|---|---|---|
| Demand link | ||
| Lagged flow routing | ||
| Storage routing | ||
| Straight through routing | ||
| Wetland link (Horizontal) |
Using links in Source
Once links have been added a model, several attributes can be edited in a similar way to nodes:
- Node and link default names;
- Renaming nodes and links - once added, links are given default names - refer to ;
- Configuring node and link parameters;
- Adding notes to nodes and links (only for lagged flow routing and storage routing links);
- Searching for nodes and links;
- Deleting nodes and links;
- Node and link default names; and
- Copying and pasting.
| Anchor | ||||
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To add a link to a model, first refer to Figure 1 which defines the terminology. To create the link:
- Position the mouse cursor over the upstream node;
- Click and hold on one of its downstream connectors and start dragging;
- When you start dragging the mouse cursor, candidate targets are displayed (as large icons) for the upstream connector of a downstream node; and
- Release the mouse and the link will ‘snap’ into place.
Figure 1. Node connection terminology
For horizontal links, the node connectors appear on the left and right side, instead of above and below the nodes. Click and drag these connectors together as described for vertical links. The presence of a horizontal link at a storage node indicates that the storage is behaving as a wetland. Figure 2 shows an example of a horizontal linkabove.
Figure 2. Horizontal link
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