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TUFLOW CATCH Tutorial M01 Project Initialisation QGIS: Difference between revisions

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== Introduction ==
QGIS is used to configure the TUFLOW CATCH project with the TUFLOW CATCH plugin. For installation, see <u>[[TUFLOW_CATCH_QGIS_PluginTUFLOW_CATCH_Tutorial_Introduction#Software_Requirements | TUFLOW CATCH QGISTutorial PluginIntroduction]]</u>.
 
There are three steps to set up the TUFLOW CATCH project:
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<li>Define the QGIS Project Coordinate Reference System (CRS).
<li>Use the TUFLOW CATCH plugin to create the model folder structure and to write empty GIS files for model inputs.
<li>Set up and save the QGIS workspace to contain the DEM of the site.
</ol>
 
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<li>Click ‘Apply’ and ‘OK’.
<li>Ensure that the projection is set correctly by viewing the bottom right hand corner of the workspace. It should read ‘EPSG:32760’.
<br><br>▼
{{Video|name=animation_TC1_initialisation_01a.mp4|width=1236}}<br>
</ol>
▲<br>
 
== TUFLOW CATCH Plugin ==
Create the TUFLOW CATCH project:
<ol>
<li> Go to Processing > Toolbox from the top drop down menu optionoptions to open the Processing Toolbox.
<li> Go to TUFLOW Catch in the processing tool list and select <font color=red>create page?</font> 'Create TUFLOW Catch Project'. This opens the dialog shown below.
:*Project Name: '''TC01'''
:*Project Folder: Click '...', and navigate to the '''TUFLOW_CATCH_Module_01\Modelling''' folder.
:*Project CRS: Click the drop down menu and select 'Project CRS: EPSG:32760 - WGS 84 / UTM zone 60S’.
:*TUFLOW HPC Executable: Click '...', and navigate to the '''exe\TUFLOW\20252026.0.20''' folder. Select '''TUFLOW_iSP_w64.exe'''.
:*TUFLOW FV Executable: Click '...', and navigate to the '''exe\TUFLOWFV\20252026.0.0''' folder. Select '''TUFLOWFV.exe'''.
:*Default GIS Format: Click the drop down menu and select 'SHP'.
:*Tick on 'Create Empty Files', 'Create Folder Structure' and 'Setup Control File Templates'
<li>*Control ClickFile 'Run'Templates: andExpand athe DOS'Advanced consoleParameters' windowsection. willClick open'...', Thisand createstick theon: TUFLOW CATCH folderControl structurefile (.tcc), theBatch projectionfile files,(.bat) theand emptyESTRY GISControl filesfile and(.ecf). templateEnsure controlall other files. are ticked off.
 
<li> Once the tool has finished, click 'Close'.<br>▼
<li> Click 'Run' and a console window will open. This creates the TUFLOW CATCH folder structure, the projection files, the empty GIS files and template control files.
▲<li> Once the tool has finished, click 'Close'.<br>
<br><br>
{{Video|name=animation_TC1_initialisation_02b.mp4|width=1236}}<br>
</ol>
 
The TUFLOW CATCH folder structure will now be set up in the '''TUFLOW_CATCH_Module_01\Modelling''' folder. The template files '''TC01_001.tcc''', '''Demonstration.bat''' and '''TC01_001.ecf''' will be in their respective folders. Note that the '''Modelling\TUFLOW''' folder still contains all files from <u>[[Tutorial_M06#Part_3_-_Rainfall_Control_File | TUFLOW Tutorial Module 6 (part 3).]]<br/u>.▼
 
{{Video|name=animation_TC1_initialisation_03a.mp4|width=1236}}<br>
 
== QGIS Workspace ==
Set up the QGIS workspace to contain the model elevation data, and save the workspace:
<ol>
<li>In Windows File Explorer, navigate to the '''TUFLOW\model\grid''' folder. Drag and drop the '''DEM.tif''' file into QGIS.
<li>Change the symbology of the DEM:
* In the QGIS Layers panel, right click the '''DEM''' file and select 'Properties'.
*From the Symbology tab, under 'Band Rendering' select the following options:
:*Render type: Singleband pseudocolor
:*Color ramp: Spectral
:*Color ramp: Invert Color Ramp
:*Mode: Equal Interval
*From the Transparency tab, set the Global Opacity to 75%.
*Click 'Apply' and 'OK'.
<br>
{{Video|name=animation_TC1_initialisation_04a.mp4|width=1236}}<br>
[[File:image of tool dialog]]<br>
<li>Create a hillshade of the DEM:
*Right click on the '''DEM''' file in the QGIS Layers Panel and select 'Duplicate Layer'.
*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'.
*From the Symbology tab, under 'Band Rendering' select the following options:
:*Render type: Hillshade
:*Z Factor: 3
*Click 'Apply' and 'OK'.
<br>
{{Video|name=animation_TC1_initialisation_05a.mp4|width=1236}}<br>
<li> Save the QGIS workspace:
*Go to Project > Save As.
*Navigate to the '''TUFLOW_CATCH_Module_01''' folder and save the workspace as '''TC01.qgz'''.
</ol>
 
<br>
▲The TUFLOW CATCH folder structure will now be set up in the '''TUFLOW_CATCH_Module_01\Modelling''' folder. Note that the '''Modelling\TUFLOW''' folder still contains all files from TUFLOW Tutorial Module 6 (part 3).<br>
{{Tips Navigation
{{Video|name=video showing tool output}}<br>
|uplink=[[TUFLOW_CATCH_Tutorial_M01#Project_Initialisation| Back to TUFLOW CATCH Tutorial 1]]
}}
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