Difference between revisions of "QGIS SWMM Junctions Downstream Junctions to Outfalls"

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== Introduction ==
 
== Introduction ==
This tool converts junctions on the downstream side of a network to outfall nodes as required by SWMM. This tool uses the "From node" and "To Node" fields to determine position in the network. Ensure that these fields are populated and up to date.<br>
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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 need to be copied into the appropriate layers in the SWMM GeoPackage.<br>
'''Note:''' It is recommended to use the <u>[[QGIS SWMM Conduits Assign Node Fields|Conduits - Assign Node Fields]]</u> tool and the <u>[[QGIS SWMM Integrity Make Node Names Unique|Integrity - Make Node Names Unique]]</u> tool to avoid errors when running the simulation.
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'''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 ==
 
== Usage ==
This tool can be found in the QGIS processing toolbox panel under 'TUFLOW > SWMM'. To open the Processing Toolbox Panel, navigate to 'Processing' in the menubar and select 'Toolbox'.<br>
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This tool, '''Junctions - Downstream junctions to outfalls''', can be found in the QGIS processing toolbox panel under TUFLOW >> SWMM. To open the Processing Toolbox panel, navigate to 'Processing' in the menubar and select 'Toolbox'.<br>
 
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[[File:open_processing_toolbox.png]]<br>
 
[[File:open_processing_toolbox.png]]<br>
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=== Parameters ===
 
=== Parameters ===
 
<ol>
 
<ol>
<li>'''Input junctions:''' Select the ... button to bring up a dialogue and then navigate to the location of the GeoPackage to convert.
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<li>'''Input junctions:''' The existing junctions layer.
<li>'''Input conduits:''' Select the ... button to bring up a dialogue and then navigate to the desired location of the SWMM inp file.
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<li>'''Selected features only:''' If node(s) in the junctions layer have been selected using the 'Select Features' tool, this option will become available. If checked on, the tool will only check the selected node(s).
<li>'''New outfalls layer:'''  
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<li>'''Input conduits:''' The conduits layer containing the channel(s) to which the junction and outfall node(s) are connected.
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<li>'''Modified junctions layer:''' Determines the location and filename of the modified junctions layer (outfall node(s) removed).  
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<li>'''New outfalls layer:''' Determines the location and filename of the new outfalls layer.
 
</ol>
 
</ol>
 
<br>
 
<br>
[[File:downstream_junctions_to_outfalls_dialog.png]]
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[[File:Junctions_Downstream_Junctions_to_Outfalls_Dialog_c.png]]
 
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=== Example ===
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== Example ==
{{Video|name=Animation_write_to_SWMM_inp_001a.mp4|width=1235}}
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<br>
 
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{{Video|name=Animation_Junctions_Downstream_Junctions_to_Outfalls_01b.mp4|width=1236}}
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{{Tips Navigation
 
{{Tips Navigation
 
|uplink=[[TUFLOW_QGIS_Plugin#Usage| Back to TUFLOW QGIS Plugin Main Page]]
 
|uplink=[[TUFLOW_QGIS_Plugin#Usage| Back to TUFLOW QGIS Plugin Main Page]]
 
}}
 
}}

Latest revision as of 14:58, 3 May 2024

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 need to be copied into the appropriate layers in the SWMM GeoPackage.

Note: This tool relies on the 'From Node' and 'To Node' fields to determine position in the network. The Conduits - Assign node fields processing tool will ensure the 'From Node' and 'To Node' fields are correctly assigned.

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 panel, navigate to 'Processing' in the menubar and select 'Toolbox'.

Open processing toolbox.png

Parameters

  1. Input junctions: The existing junctions layer.
  2. Selected features only: If node(s) in the junctions layer have been selected using the 'Select Features' tool, this option will become available. If checked on, the tool will only check the selected node(s).
  3. Input conduits: The conduits layer containing the channel(s) to which the junction and outfall node(s) are connected.
  4. Modified junctions layer: Determines the location and filename of the modified junctions layer (outfall node(s) removed).
  5. New outfalls layer: Determines the location and filename of the new outfalls layer.


Junctions Downstream Junctions to Outfalls Dialog c.png

Example



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Go-up.png Back to TUFLOW QGIS Plugin Main Page