The Geographic Editor shows a geographic representation of the catchment model, and displays the sub-catchment map and the node-link network of the current scenario.
Figure 1. Geographic Editor contextual menu
Several commands are available when you right-click in the Geographic Editor (Figure 1):
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- To add a new node, right-click on the Geographic Editor and enable Add Nodes in the contextual menu. Then click on the Geographic Editor at the desired location of the new node (top right schematic in Figure 2). By default, all nodes are created as confluence nodes. Subsequent clicks in the Geographic Editor will place additional new nodes. Note that Add Nodes stays enabled until it is explicitly disabled by enabling a different mode (eg. Pan or Select) from the contextual menu .
To change the node type, enable Select from the contextual menu. Click on the node of interest, which will highlight it. Right-click and choose Change Node Model. This will open another menu, which lists the node types you can change to. Select the desired node type (bottom left schematic in Figure 2). With Select enabled, you can also edit nodes and links through their respective feature editors.Anchor ChangeNodeModel ChangeNodeModel - Links can be added by enabling Add Link from the contextual menu. First, click on the upstream node (highlighted with an enlarged icon), then click on the downstream node; this will create a link. Refer to the bottom right schematic in Figure 2. Since Add Link remains enabled, subsequent pairs of clicks continue to add additional links until it is disabled. By default, a new link is configured with straight through routing. The routing type can be changed by right-clicking on the link and choosing Change Link Routing.
- Nodes and links can be deleted after Select has been enabled from the contextual menu. Click on the node or link you wish to delete (this will highlight it) and press the delete key or right-click and select Delete from the contextual menu.
Spatial coordinates and elevations for nodes and reaches can be set using Location Control.
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| When deleting nodes and links, there is no warning given, and no confirmation is sought. When a node is deleted, all links immediately upstream or downstream of the node are deleted as well. This action cannot be undone |
Figure 2. Geographic editor (Network editing)
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| Note: Sub-catchment runoff is fed into links, so deleting the receiving link, that is, the link associated with the sub-catchment, effectively stops that catchment runoff from entering the system. When this happens, the sub-catchment boundary is highlighted in red to indicate that it is disconnected from the network. |
To reconnect a disconnected sub-catchment to the network:
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Figure 3 Distinction between lateral flow receiving and non-receiving links
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Figure 4. Node, link and sub-catchment deactivation in a catchment scenario
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Deleting Sub-catchments
Individual Sub-catchments can be selected and deleted from the project (Figure 5). To delete a Sub-catchment, select the sub-catchment and then right click to bring up the menu. Select delete and the selected sub-catchment will be deleted. Multiple items can be selected in the one operation, and if 10 or more items are selected a warning will be displayed before the deletion is completed. Care needs to be taken when doing this because once an item is deleted all underlying configuration for that item is lost from the model.
Figure 5. Deleting a Sub-catchment
