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== Introduction ==
This tool converts junctions on the downstream side of a network to outfall nodes as required by SWMM. An outfall layer with the converted nodes will be created along with a modified junction layer (outfall nodes removed). The contents of these layers needsneed to be copied into the appropriate layers in the SWMM GeoPackage.<br>
'''Note:''' This tool relies on the "'From Node"' and "'To Node"' fields to determine position in the network. The <u>[[QGIS SWMM Conduits Assign Node Fields|Conduits - Assign node fields]]</u> processing tool will ensure the "'From Node"' and "'To Node"' fields are correctly assigned.
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== Usage ==
This tool, '''Junctions - Downstream junctions to outfalls''', can be found in the QGIS processing toolbox panel under 'TUFLOW >> SWMM'. To open the Processing Toolbox Panelpanel, navigate to 'Processing' in the menubar and select 'Toolbox'.<br>
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[[File:open_processing_toolbox.png]]<br>
=== Parameters ===
<ol>
<li>'''Input junctions:''' The existing junctions layer to be converted.
<li>'''InputSelected conduitsfeatures only:''' TheIf conduitsnode(s) layer to whichin the junctions andlayer outfallshave arebeen connected.selected Tousing onlythe convert'Select theFeatures' junctionstool, fromthis someoption ofwill thebecome conduitavailable. features,If tickchecked on, 'Selected features only'. Thethe tool will only convertcheck the junctionsselected of the conduits which have been selectednode(s).
<li>'''Input conduits:''' The conduits layer containing the channel(s) to which the junction and outfall node(s) are connected.
<li>'''Modified junctions layer:''' Determines the location and filename of the modified junctions layer (outfall nodes removed). Details on the options are below. ▼<li>'''NewModified outfallsjunctions layer:''' Determines the location and filename of the newmodified outfallsjunctions layer. Details(outfall onnode(s) the options are belowremoved).
▲<li>''' ModifiedNew junctionsoutfalls layer:''' Determines the location and filename of the modifiednew junctionsoutfalls layer (outfall nodes removed). Details on the options are below.
</ol>
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[[File:downstream_junctions_to_outfalls_dialogJunctions_Downstream_Junctions_to_Outfalls_Dialog_c.png]]
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:'''Output Options:'''<br>
:These options apply for both the 'Modified junctions layer' and the 'New outfalls layer' parameters. For each of the following options, the tool will output a new junctions/outfalls layer and won't override the existing one. <br>
<ol>
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{{Video|name=Animation_Junctions_Downstream_Junctions_to_Outfalls_01b.mp4|width=1236}}
[[File:downstream_junctions_to_outfalls_output_options_3.png]]
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:<li>Create Temporary Layer:
:*Creates a temporary scratch layer. This layer will open into the QGIS workspace but it will '''not''' be saved anywhere.
:<li>Save to File...:
:*The user can navigate to a folder and save the new junctions/outfalls layer to a new GeoPackage Database.
:<li>Save to GeoPackage...:
:*The user can navigate to an existing GeoPackage Database. Once selected, a 'Layer Name' dialog will appear. Enter the new layer name, and the updated junctions/outfalls layer will be saved as that name in the GPKG.
::[[File:Layer_Name_junction_dialog.png]]<font color=white>"space"</font>[[File:Layer_Name_outfall_dialog.png]]
:<li>Save to Database Table...:
:*'''<font color=red>???</font>'''
:<li>Append to Layer...:
:*'''<font color=red>???</font>'''<br>
</ol>
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{{Video|name=.mp4|width=1235}}
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