TUFLOW SWMM Tutorial M03: Difference between revisions

 

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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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SWMM pipe network junction attributes need to be updated when converting a TUFLOW 2D direct rainfall / SWMM 1D model <u>([[TUFLOW_SWMM_Tutorial_M02|TUFLOW SWMM Tutorial Module 2]]</u>). into a format that uses SWMM hydrology instead of direct rainfall. Similar to above (incrementing the TUFLOW GeoPackage file), we will increment the SWMM pipe network database name so we do not alter the inputs necessary for '''TS02_5m_001.tcf''' to function without issue.

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<li> Select TUFLOW > SWMM - Increment GeoPackage. This opens the dialog shown below.

:*Output File: Click the ... and set the new database name to '''sw03_001.gpkg'''.

<li> Select 'OK'.

<li> The tool will automatically load '''sw03_001.gpkg''' into the QGIS workspace and remove '''sw02_001.gpkg''' from the QGIS workspace.

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{{Video|name=Animation_TS3_Initialization_03a.mp4|width=1235}}

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<li>In Windows File Explorer, navigate to the '''TUFLOW\model\swmm''' folder and drag and drop '''sw03_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 '''sw03_001.gpkg'''. By default, all items in the available list should have been selected.

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{{Video|name=Animation_TS3_SWMM_Inputs_02a.mp4|width=1235}}

<li>In Windows File Explorer, navigate to the '''TUFLOW_SWMM_Module_03\Tutorial_Data''' folder. Drag and drop the '''Urban_Hydrology.gpkg''' into QGIS.

<li>When prompted by QGIS select '''SWMM_Subcatchments'''. Click 'Add Layers'.

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

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

<li>Make the '''sw03_001 >> Hydrology--Subcatchments''' 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.

 

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<li>Right click '''Hydrology--Raingages''' and select 'Open Attribute Table'.

<li>Click 'Add Feature' twice. Enter the following attributes (leave all other fields as ''NULL''):

The information within '''Hydrology--Subcatchments''' defines the subcatchment parameters (including catchment area, width, slope, percent impervious, outlet specification and infiltration details). All required data entries have been pre-filled in the supplied dataset except the 'Area' information, which we will determine using QGIS. SWMM requires the hydrology subcatchment area information in hectares.

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<li>Right click '''Hydrology--Subcatchments''' and select 'Open Attribute Table'.

<li>Choose 'Area' as the target field and type the calculation expression, '$area / 10000'.

 

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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.

<li>Tick the 'Regions' Geometry Type.

<li>In the Spatial Database Options, select 'All to one'. Navigate to the '''TUFLOW_SWMM_Module_03\TUFLOW\model\gis''' folder and select '''TS03_001.gpkg'''. Click Save and hit 'OK'.

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[[File:TS3_import_empty_2d_sa_01a.png]]<br>

<li>In Windows File Explorer, navigate to the '''TUFLOW_SWMM_Module_03\Tutorial_Data''' folder. Drag and drop the '''Urban_Hydrology.gpkg''' into QGIS.

<li>When prompted by QGIS, select '''TUFLOW_Subcatchments'''. Click 'Add Layers'.

<li>Use the 'Select Features' tool to highlight the four regions included in '''TUFLOW_Subcatchments'''.

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

<li>Make the '''2d_sa_TS03_001_R''' 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.