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Tutorial M04 002 GIS Inputs QGIS GPKG: Difference between revisions

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Set up the GeoPackage Database:
<ol>
<li>Navigate to the '''Module_04\TUFLOW\model\gis''' folder. Save a copy of '''M02_001M04_001.gpkg''' as '''M04_002.gpkg'''.
<li>Within the QGIS Browser Panel, right click on 'Favorites' and select 'Add a Directory...'.
<li>Navigate to the '''Module_04''' folder and select it.
</ol>
Within the QGIS Browser Panel, navigate to the '''Module_04\Tutorial_Data''' folder. Drag and drop the following layerslayer into the '''Module_04\TUFLOW\model\gis\M04_002.gpkg''': <br>
:*'''2d_bg_M04_002_L'''
:*'''2d_po_M04_001_L'''
:*'''2d_po_M04_001_P'''
:*'''2d_zsh_M02_cut_002_R'''
 
Investigate the supplied files:
<ol>
<li>Open the files'''2d_bg_M04_002_L''' file, either: <br>
:*Within the QGIS Browser Panel, navigate to '''M04_002.gpkg''' and double click the layerslayer, or
:*In File Explorer, drag and drop the '''M04_002.gpkg''' into the QGIS workspace and select the layerslayer (hold Ctrl to select multiple).
<li>Use the ‘Apply TUFLOW Styles to Open Layers’.
<li>The 2d_zsh file cuts through the road embankment, see <u>[[Tutorial_M02 | Module 2]]</u> for more information.<br>
<li>The 2d_bg represents the bridge in 2D, it has layers of varying blockage and form loss for the “pier layer” and the “super structure layer”, which consists of the “deck layer” and the “rail layer”. <br>
Refer to the <u>[https://docs.tuflow.com/classic-hpc/manual/2023-032025.1/TwoD-Domains-1.html#bg-layer-4 TUFLOW Manual]</u> for more information on the attributes of the 2d_bg layer.<br>
<br>
{{Video|name=Animation_M04_GPKG_GIS_01Tutorial M04 002 GIS Inputs QGIS GPKG draft_2a.mp4|width=12321350}}<br>
 
<br>
<li>The 2d_po files include a structure group output for the 2D bridge. The 'Label' attribute links the 2d_po line to the 2d_po points by the same attribute ‘Bridge’.
<li>The 2d_po line is snapped to the 2d_lfcsh from left to right looking downstream and has the following attributes: <br>
:*Type = QS (structure flow)
:*Label = Bridge
<li> The 2d_po points are digitised upstream and downstream of the 2d_lfcsh and have the following attributes: <br>
:*Type = HU (water level upstream) and HD (water level downstream)
:*Label = Bridge
<br>
{{Video|name=Animation_M04_GPKG_GIS_02.mp4|width=1232}}<br>
</ol>
<br>
 
= Conclusion =
:*The 2d_lfcsh2d_bg layer was supplied for use as a 2D bridge.
:*The 2d_po structure group layers were added to output additional hydraulic information of the 2D bridge.
<br>
{{Tips Navigation
|uplink=[[Tutorial_M04#GIS_InputsGIS_Inputs_2| Back to Module 4 Main Page]]
}}
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