Tutorial M04 GIS Inputs QGIS GPKG: Difference between revisions

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Created page with "<span style="color:#FF0000"> <font size = 18>Page Under Construction</font> </span> = Introduction = QGIS is used to create, import and view input data.<br> <br> = TUFLOW Pro..."
 
 
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<span style="color:#FF0000">
<font size = 18>Page Under Construction</font>
⚫
</span>
= Introduction =
= Introduction =
QGIS is used to create, import and view input data.<br>
QGIS is used to create, import and view input data.<br>
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<li>Click 'OK' and save the QGIS workspace by selecting Project > Save As.<br>
<li>Click 'OK' and save the QGIS workspace by selecting Project > Save As.<br>
<br>
<br>
[[File:M04_SHP_ConfigureProject.PNG]]<br><br>
[[File:M04_GPKG_ConfigureProject.PNG]]<br><br>
<li>Set the QGIS workspace projection to EPSG:32760, see <u>[https://wiki.tuflow.com/index.php?title=Tutorial_Site_Familiarisation_QGIS#Set_the_Projection Set the Projection]</u>.
<li>Set the QGIS workspace projection to EPSG:32760, see <u>[https://wiki.tuflow.com/index.php?title=Tutorial_Site_Familiarisation_QGIS#Set_the_Projection Set the Projection]</u>.
</ol>
</ol>
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= Method =
= Method =
Set up the GeoPackage Database:
⚫
Navigate to the '''Module_04\Tutorial_Data''' folder. Copy and save all the below layers into the '''Module_04\TUFLOW\model\gis''' folder: <br>
<ol>
⚫
:*2d_lfcsh_M04_bridge_001_L
<li>Navigate to the '''Module_04\TUFLOW\model\gis''' folder. Save a copy of '''M02_001.gpkg''' as '''M04_001.gpkg'''.
⚫
:*2d_po_M04_001_L
<li>Within the QGIS Browser Panel, right click on 'Favorites' and select 'Add a Directory...'.
⚫
:*2d_po_M04_001_P
<li>Navigate to the '''Module_04''' folder and select it.
⚫
:*2d_zsh_M02_cut_002_R
⚫
</ol>
⚫
Within the QGIS Browser Panel, navigate to the '''Module_04\Tutorial_Data''' folder. Drag and drop the following layers into the '''Module_04\TUFLOW\model\gis\M04_001.gpkg''': <br>
⚫
:*'''2d_lfcsh_M04_bridge_001_L'''
⚫
:*'''2d_po_M04_001_L'''
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:*'''2d_po_M04_001_P'''
⚫
:*'''2d_zsh_M02_cut_002_R'''


Investigate the supplied files:
Investigate the supplied files:
<ol>
<ol>
<li>Open the files, either: <br>
<li>Open the files, either: <br>
:*Within the QGIS Browser Panel, navigate to '''M04_001.gpkg''' and double click the layers, or
:*Drag and drop the .shp files into the QGIS workspace, or
:*In File Explorer, drag and drop the '''M04_001.gpkg''' into the QGIS workspace and select the layers (hold Ctrl to select multiple).
:*Select Layer > Add layer > Add Vector Layer and navigate to the '''Module_04\TUFLOW\model\gis''' folder.
<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_zsh file cuts through the road embankment, see <u>[[Tutorial_M02 | Module 2]]</u> for more information.<br>
<li>The 2d_lfcsh represents the bridge in 2D, it has layers of varying blockage and form loss for piers, bridge deck and railings. The layers of the bridge structure are defined as:<br>
<li>The 2d_lfcsh represents the bridge in 2D, it has layers of varying blockage and form loss for piers, bridge deck and railings. The layers of the bridge structure are defined as:<br>
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:*Layer 3: The bridge rails.
:*Layer 3: The bridge rails.
:*Layer 4: Flow above the rails (assumed to be unimpeded).
:*Layer 4: Flow above the rails (assumed to be unimpeded).
See Table 6-21 of the <u>[https://downloads.tuflow.com/_archive/TUFLOW/Releases/2018-03/TUFLOW%20Manual.2018-03.pdf 2018 TUFLOW Manual]</u> for more information on the attributes.<br>
Refer to the <u>[https://docs.tuflow.com/classic-hpc/manual/latest/ TUFLOW Manual]</u> for more information on the attributes.<br>
<br>
<br>
{{Video|name=Animation_M04_GPKG_GIS_01.mp4|width=1232}}<br>
[[File:Animation M04 GIS 01b.gif]]<br>
<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 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’.
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:*Label = Bridge
:*Label = Bridge
<br>
<br>
{{Video|name=Animation_M04_GPKG_GIS_02.mp4|width=1232}}<br>
[[File:Animation M04 GIS 02a.gif]]<br>
</ol>
</ol>
<br>
<br>

Latest revision as of 17:53, 11 June 2025

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_04 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

Set up the GeoPackage Database:

  1. Navigate to the Module_04\TUFLOW\model\gis folder. Save a copy of M02_001.gpkg as M04_001.gpkg.
  2. Within the QGIS Browser Panel, right click on 'Favorites' and select 'Add a Directory...'.
  3. Navigate to the Module_04 folder and select it.

Within the QGIS Browser Panel, navigate to the Module_04\Tutorial_Data folder. Drag and drop the following layers into the Module_04\TUFLOW\model\gis\M04_001.gpkg:

  • 2d_lfcsh_M04_bridge_001_L
  • 2d_po_M04_001_L
  • 2d_po_M04_001_P
  • 2d_zsh_M02_cut_002_R

Investigate the supplied files:

  1. Open the files, either:
    • Within the QGIS Browser Panel, navigate to M04_001.gpkg and double click the layers, or
    • In File Explorer, drag and drop the M04_001.gpkg into the QGIS workspace and select the layers (hold Ctrl to select multiple).
  2. Use the ‘Apply TUFLOW Styles to Open Layers’.
  3. The 2d_zsh file cuts through the road embankment, see Module 2 for more information.
  4. The 2d_lfcsh represents the bridge in 2D, it has layers of varying blockage and form loss for piers, bridge deck and railings. The layers of the bridge structure are defined as:

    • Layer 1: Beneath the bridge deck.
    • Layer 2: The bridge deck.
    • Layer 3: The bridge rails.
    • Layer 4: Flow above the rails (assumed to be unimpeded).

    Refer to the TUFLOW Manual for more information on the attributes.



  5. 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’.
  6. The 2d_po line is snapped to the 2d_lfcsh from left to right looking downstream and has the following attributes:
    • Type = QS (structure flow)
    • Label = Bridge
  7. The 2d_po points are digitised upstream and downstream of the 2d_lfcsh and have the following attributes:
    • Type = HU (water level upstream) and HD (water level downstream)
    • Label = Bridge



Conclusion

  • The 2d_lfcsh 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.


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