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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:

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Click on

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the InfoWater Pro Ribbon

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 in the Edit Group using the → Insert Command dropbox Image Added.  

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

Note

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

Once the command is initiated, select the location of the new node by

...

clicking anywhere on the map display. Suggest a new ID and/or a description on the Junction Identification dialog box and click

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OK

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 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 prompt you 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 iconImage Addedfrom the → Insert Command dropbox  to create a pipe and node network on the fly.  Once digitized, 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 Image Addedfrom 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 Image Added.

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.


Image Added

Data Edit - To edit the data related to a junction, first select the junction using the tools above. Once selected, edit Junction related data by adding/modifying the fields in the Model Explorer - Attribute Tab window.  Additionally modifications may be done by editing the DB Tables that may be accessed from the InfoWater Control Center -> InfoWater button -> Edit Pull-down menu -> DB Editor command. Graphic Pro Ribbon in the Edit Group using the → DB Editor icon Image Added .

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 Image Added select the Move Node command Image Added from the drop-down menu list. Click on the mouse and hold the left click down on the junction to select it

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. With the junction is highlighted, move the node to the desired position and left

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Choose the Move Node icon from the InfoWater Edit Network toolbar. Left click once on the junction to select it and choose the new position and left click again to move the junction

mouse click. 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: Image Added.

Note

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

Edit the data for a group of Junctions?

Group edits can be made by either creating a domain or by creating a selection.

Using the Domain Manager - Create a domain selecting the specific junctions that you want to edit. Refer to the section on Domain Manager for details on the domain creation process. Once the domain has been created, choose the InfoWater Pro Ribbon in the Edit Group using the → DB Editor icon Image Added. Depending on the data you want to edit choose the appropriate table type from among the different database tables. Choose Image Addedas the Data Scope and click on OK.

Using the User Selection - Select choose the InfoWater Pro Ribbon in the Edit Group using the → DB Editor icon Image Added.  Depending on the data you want to edit choose the appropriate table type from among the different database tables. Choose as the Data Scope and choose the User Selection Image Added command. This places the software in User Selection Mode.  In InfoWater Pro, the Selected elements will be in a cyan color.  Once all of the desired junctions are selected, right click and choose Enter to access the DB Tables for the selected junctions.

Once the specific tables have been opened with the desired scope, enter data one cell at a time or Block Edit data to make changes in bulk to multiple cells.

Note

Group Editing for certain specific features may also be done by choosing the Group Editing icon Image Added or the Edit Domain icon Image Addedunder the InfoWater Pro Ribbon in the Edit Group . Refer to the sections on Group Editing and Edit Domain to learn more.

Delete a Junction?

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

The active selected junction in the Model Explorer - Attribute Tab window may also be deleted by selecting the Delete icon Image Added 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 Image Added is checked in the Operation Settings tab in the Preferences settingsImage Added.  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 from the Utilities -> Recall (node or Pipe) command. However, if Auto Database Packing Image Added is checked (Operation Settings tab in the Preferences settingsImage Added), 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 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, then go to  Utilities -> Recall, and select theNode command. In order to perform the recall, 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 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.