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Junction nodes are points placed at the intersection of two or more pipes (intersections or tees). Junctions are used to represent points of water consumption or inflow, points where specific analysis values (e.g., pressure, concentration) are desired, and at points where pipe attributes (e.g., diameter, material) change.  Junction Junction nodes must have their elevation above datum (e.g., sea level) specified in order for pressure computations to be meaningful.

How do I...

Create a Junction?

To create a junction node, do the following:

Click on the InfoWater Pro Ribbon in the Edit Group using the → Insert Command dropbox .  

Select the Insert Junction icon from the → Insert Command dropbox  .

Note

When the Insert Junction command is the active command it will be highlighted in Blue as shown: .

Once the command is initiated, select the location of the new node by left mouse clicking anywhere on the map display. Suggest a new ID and/or a description on the Junction Identification dialog box and click on the OK button to  to accept the ID and create the junction. The junction should visually appear at the specified location. If the insert location is near an existing model pipe, the software will ask if prompt you wish to insert the junction into that pipe. If you wish to split the pipe, the Junction Identification dialog box for the new junction and the new pipe will appear in a pop-up window.

Note

You can also use the Digitize Network iconfrom the → Insert Command dropbox  to create a pipe and node network " on the fly".  Once digitized, the user is you are able to add relevant modeling data in the Model Explorer - Attribute Tab window or via the DB Editor.

 Edit a Junction? 

Graphic Selection - To select a junction node for data edit do one of the following:

Choose the Select icon from the Model Explorer - Attribute Tab window and click on the specific Junction or select the InfoWater Pro Ribbon in the Edit Group using the → Select icon .

If a Junction has been prior selected and is a part of the Browse history, it can be re-selected by choosing it from the Browse-History section of the Model Explorer - Attribute Tab window.

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Graphic Edit  - To edit the node graphically do one of the following: From the  InfoWater Pro Ribbon in the Edit Group using the → Edit Command dropbox icon  select the Move Node command  from the dropdown . Left click on drop-down menu list. Click on the mouse and hold the left click down on the junction to select it. With the junction is highlighted, move the node to the desired position while keeping the and left mouse click mouse button depressed. Once in the desired location, release the left mouse button and the node location will be updated to the new location.

Note

When the Move Node command in the InfoWater Pro Ribbon in the Edit Group → Edit Command dropbox is the active command it will be highlighted in Blue as shown: .

Note

If the user has you have not enabled "the Auto Length Calculation" checkbox under from the InfoWater Pro Ribbon in the Project Group using the Preferences icon and the Operations tab, all pipes connected to a node moved will not have their lengths automatically changed.

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To delete a junction, select the Delete Node option  in the InfoWater Pro Ribbon in the Edit Group → Edit Command dropbox. Select the node to be deleted and InfoWater Pro prompts the user you to confirm deletion (if the Delete Confirmation checkbox  is checked in the Operation Settings tab in the Preferences settings.

The active selected junction in the Model Explorer - Attribute Tab window may also be deleted by selecting the Delete icon  with the InfoWater Pro prompt to confirm element deletion.

Note

All pipes attached to the Junction being deleted will also be deleted if the Auto Pipe Delete checkbox is checked in the Operation Settings tab in the Preferences settings.  The Junction and associated pipes are deleted and saved in the InfoWater Pro recycle bin and can be recalled from the database using the Model Explorer - Command Center Tab under  from the Utilities -> Recall (node or Pipe) command. However, if Auto Database Packing is checked (Operation Settings tab in the Preferences settings), then any element deleted is permanently deleted from the database and cannot be recalled. Deleted elements can be recalled until the Pack and then Clean commands (found in the Model Explorer - Command Center Tab under  from the Utilities → Database menu list) are completed which removes deleted element ID's from the database.

Recall a deleted Junction?

To recall a deleted junction, go to Model Explorer - Command Center Tab under , then go to  Utilities -> Recall  Recall, and select theNode command. In order to perform the recall, the user you must know the ID of the junction that was deleted. You may choose the Show Deleted Node command to obtain a list of  nodes nodes deleted from the InfoWater project but saved in the InfoWater recycle bin. Deleted elements can be recalled until the Pack and then Clean commands (found in the Model Explorer - Command Center Tab under Utilities → Database menu list) are completed which removes deleted element ID's from the database permanently.

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