TUFLOW SWMM Tutorial M01: Difference between revisions

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<li>Change the symbology of the DEM:

*From the Symbology tab, under 'Band Rendering' select the following options:

:*Render type: Singleband pseudocolor

{{Video|name=Animation_TS1_Initialization_03d.mp4|width=1235}}<br>

<li>Create a hillshade of the DEM:

*Right click on the '''DEM_copy''' and select 'Rename Layer'. Rename the layer to '''DEM_Hillshade'''.

*Right click on the '''DEM_Hillshade''' and select 'Properties'.

 

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<li>Click on the 'Increment Selected Layer' symbol from the TUFLOW Plugin toolbar. This opens the dialog shown below.

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<li>In Windows File Explorer, navigate to the '''TUFLOW\model\swmm''' folder and drag and drop '''sw01_001.gpkg''' into QGIS.

<li>When prompted by QGIS, under 'Options', tick on 'Add layers to group', then select 'Add Layers' to open all vectors within '''sw01_001.gpkg'''. By default, all items in the available list should have been selected.

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<li>In Windows File Explorer, navigate to the '''TUFLOW_SWMM_Module_01\Tutorial_Data''' folder. Drag and drop the '''SWMM_Culverts.gpkg''' into QGIS.

<li>When prompted by QGIS, under 'Options', tick on 'Add layers to group'. By default, all items in the GeoPackage database will be selected. Click 'Add Layers'.

<li>Use the 'Select Features' tool to highlight all items included in '''Conduits'''.

<li>Select 'Edit' from the top QGIS tab and 'Copy Features' from the drop down menu.

<li>Make the '''Links--Conduits''' layer editable by clicking the 'Toggle Editing' symbol [[File:toggle_editing_icon.png|27x27px]].

<li>Select 'Edit' from the top QGIS tab and click 'Paste Features' from the drop down menu.

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 '<u>[[QGIS_SWMM_Conduits_Assign_Node_Fields |Conduits - Assign node fields]]</u>' tool from the Processing Toolbox.

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<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 '<u>[[QGIS_SWMM_Conduits_Assign_Node_Fields |Conduits - Assign node fields]]</u>'. This opens the dialog shown below.

Step 2, update the loss attributes in the '''Links--Conduits''' layer. These values will be entered manually in this example using default values. Variation to the default values can be used in project models to reflect site specific information if desired.

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<li>Right click '''Links--Conduits''' and select 'Open Attribute Table'.

<li>For each conduit, update the following fields:

The following instructions introduce a new tool that automates the creation of 1D/2D connections. Due to the limitations of SWMM boundary conditions, HX lines are required for the upstream end of the culvert (rather than SX), and SX connections are used at the downstream end of the culvert.<br>

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<li>In the Processing Toolbox, go to TUFLOW >> SWMM and select '<u>[[QGIS_SWMM_BC_Create_Channel_Endpoint_1D/2D_Connections |BC - Create channel endpoint 1D/2D connections]]</u>'. This opens the dialog shown below. <br>

'''Note:''' Ensure the 'Edit Features In-Place' tool has been turned off.

<li>Click 'Run'.

<li>Once the tool is finished, click 'Close'.

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{{Video|name=Animation_TS1_SWMM_Inputs_07e.mp4|width=1235}}

 

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<li>In the Processing Toolbox, select the 'Edit Features In-Place' tool. 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 '<u>[[QGIS_SWMM_Junctions_Set_Attributes |Junctions - Set attributes ]]</u>' processing tool. This opens the dialog shown below.

==SWMM Options==

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<li>Right click '''Project--Options''' and select 'Open Attribute Table'.

<li>Update the following options: