Tutorial M07 GIS Inputs QGIS

Introduction

QGIS is used to create, import and view input data.

TUFLOW Project Re-Configuration

Re-configure the TUFLOW project to use and save empty files to the correct folder:

1. Go to Plugins > TUFLOW > Editing > Configure / Create TUFLOW Project.
2. Change the folder which contains TUFLOW to the Module_07 folder. This is the only change required, the model folder structure and template empty files are supplied from previous model.
   Note: The 'results' and 'check' folder get automatically created when the TUFLOW model is run.
   
3. Click 'OK' and save the QGIS workspace by selecting Project > Save As.
   
   
   
   
4. Set the QGIS workspace projection to EPSG:32760, see Set the Projection.

Method

Navigate to the Module_07\TUFLOW\model\gis folder:

• Drag and drop the 2d_code_M01_001_R.shp file into the workspace, or
• Select Layer > Add layer > Add Vector Layer and navigate to the Module_07\TUFLOW\model\gis folder.
• Use the 'Apply TUFLOW Styles to Open Layers'.

Create quadtree nesting layer:

1. Click on the ‘Import Empty File’ symbol from the TUFLOW Plugin toolbar.
2. Select '2d_qnl' from the Empty Type list.
3. In the Run ID box write 'M07_001'.
4. Tick the 'Regions' Geometry Type and hit 'OK'. The 2d_qnl (quadtree nesting layer) file appears in the Layers panel.
5. Right click on the '2d_qnl_M07_001_R' and toggle on Editing.
6. Select 'Add Polygon Feature' and digitise a polygon around the creek.
7. Terminate the polygon by right clicking and write '2' into the 'Nest_Level' attribute.
8. Turn off editing to save the edits.
   
   
   
   

Conclusion

• A 2d_qnl layer was digitised surrounding the creek.

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