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Introduction

QGIS is used to import the check files and review the grid cell sizes.

TUFLOW Project Re-Configuration

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

Go to Plugins > TUFLOW > Editing > Configure / Create TUFLOW Project.
Change the folder which contains TUFLOW to the Module_08 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.
Click 'OK' and save the QGIS workspace by selecting Project > Save As.
Set the QGIS workspace projection to EPSG:32760, see Set the Projection.

This tutorial introduces:

Review the check files:

Open the files, either:
1. In File Explorer, navigate to the Module_08\TUFLOW\check folder, drag and drop the M08_5m_001_Check.gpkg into the QGIS workspace and select the layers (hold Ctrl to select multiple), or
2. Within the QGIS Browser Panel, navigate to Module_08\TUFLOW\check\M08_5m_001_Check.gpkg and double click on the layers to open them.
Use the 'Apply TUFLOW Styles to Open Layers'.
The grd_check is the 2D grid defined by the 2d_code layer and contains a region object for each cell. It is useful to understand how the model is orientated, the cell size in relation to the hydraulic features and where certain calculations occur in the model. In this tutorial, the grid is orientated to align with the downstream road.
Compare the cells, inspect how the smaller cell size picks up topographic features compared with the larger cell size.

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