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TUFLOW SWMM Tutorial M01: Difference between revisions

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== GIS Data Updates ==
The provided GIS data requires numerous updates, priorbefore proceeding to oura model simulation. We have intentionally built these updates into this tutorial to demonstrate some of the available TUFLOW SWMM model builtbuild processing tools. The following updates are being made to Objects and Layers within '''sw01_001.gpkg'''.
===Update Conduit Details===
Step 1 involves updating the ''From Node'' and ''To Node'' attribute information in '''Links--Conduits'''. This information is necessary to build the 1D SWMM network. It defines the Link/Node connections. The information we will be adding to '''Links--Conduits''' is extracted from '''Nodes--Junctions''' and '''Nodes--Outfalls''' automatically using the 'Conduits - Assign Node Fields' tool from the Processing Toolbox.
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<li>In the QGIS Layers panel, select (left click) '''Links--Conduits''' and toggle on editing.
<li>In the Processing Toolbox, select the 'Edit Features In-Place' tool [[File:edit_features_in_place_icon.png]]. This allows the editing of an existing layer, instead of the creation of a new layer.
<li>Go to TUFLOW > SWMM in the processing tool list and select 'Conduits - Assign node fields'. This opens the dialog shown below.
<li>Tick on the SWMM Node Layers: '''Nodes--Junctions''' and '''Nodes--Outfalls'''.
<li>Select 'Modify All Features'.
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<li>Turn off editing to save the edits.
<li>View the attributes associated within '''Links--Conduits''' to verify the data processing has been completed correctly. The 'From Node' and 'To Node' attribute information is now configured correctly.<br>
'''Tip1:''' If you wish to only update select objects during a futureselection modellingof projectobjects, instead of selecting the entire '''Link--Conduits''' dataset, select the target objects first using the Feature by Area tool. The 'Conduits - Assign node fields' tool will provide an option to 'Modify Selected Features', instead of 'Modify All Features.'<br>
'''Tip2:''' Unique Node ID's are required for the SWMM network to function error free. If you are following this workflow for a project model build, please ensure the '''Nodes--Junctions''' and '''Nodes--Outfalls''' object ID information is unique. If duplicate ID values are assigned to multiple objects, consider using the 'Integrity - Make object names unique' TUFLOW SWMM processing tool to ensure all ID values are unique before using 'Conduits - Assign node fields'.
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{{Video|name=Animation_TS1_SWMM_Inputs_05d.mp4|width=1235}}
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