Difference between revisions of "Tutorial M10 001 GIS Inputs QGIS"
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(Created page with "= Introduction = QGIS is used to create, import and view input data.<br> <br> = TUFLOW Project Re-Configuration = Re-configure the TUFLOW project to use and save empty files...") |
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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: | + | [[File:M10_SHP_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 = | ||
Navigate to the '''Module_10\Tutorial_Data''' folder. Copy the below GIS files into the '''Module_10\TUFLOW\model\gis''' folder: | Navigate to the '''Module_10\Tutorial_Data''' folder. Copy the below GIS files into the '''Module_10\TUFLOW\model\gis''' folder: | ||
− | :*2d_zsh_M10_damwall_001_L | + | :*'''2d_zsh_M10_damwall_001_L''' |
− | :*2d_vzsh_M10_dambreak_001_R | + | :*'''2d_vzsh_M10_dambreak_001_R''' |
− | :*2d_iwl_M10_001_R | + | :*'''2d_iwl_M10_001_R''' |
− | :*2d_sa_M10_inflow_001_R | + | :*'''2d_sa_M10_inflow_001_R''' |
Investigate the supplied files: | Investigate the supplied files: | ||
Line 29: | Line 29: | ||
:*Select Layer > Add layer > Add Vector Layer and navigate to the '''Module_10\TUFLOW\model\gis''' folder. <br> | :*Select Layer > Add layer > Add Vector Layer and navigate to the '''Module_10\TUFLOW\model\gis''' folder. <br> | ||
<li>The 2d_zsh line layer represents the dam wall: | <li>The 2d_zsh line layer represents the dam wall: | ||
− | :*A ‘Z’ attribute of 65 is specified, the elevations are set to | + | :*A ‘Z’ attribute of 65 is specified, the elevations are set to 65 metres along the length of the line. |
:*The line has the same Shape_Width as the cell size, this is a thick breakline modifying whole cells. | :*The line has the same Shape_Width as the cell size, this is a thick breakline modifying whole cells. | ||
<br> | <br> | ||
− | + | {{Video|name=Animation_M10_001_GIS_01a.mp4|width=1238}}<br> | |
<br> | <br> | ||
<li>The 2d_vzsh polygon layer represents the location of the dam break: | <li>The 2d_vzsh polygon layer represents the location of the dam break: | ||
Line 38: | Line 38: | ||
:*Trigger_Value sets the simulation time in hours that the dam break is to commence. A value of 1 indicates the dam break begins at 1 hour. | :*Trigger_Value sets the simulation time in hours that the dam break is to commence. A value of 1 indicates the dam break begins at 1 hour. | ||
:*Period sets the time in hours over which the change in elevation occurs. A value of 0.25 sets a period of 15 minutes replicating the break. | :*Period sets the time in hours over which the change in elevation occurs. A value of 0.25 sets a period of 15 minutes replicating the break. | ||
− | For more information, | + | For more information, refer to the <u>[https://docs.tuflow.com/classic-hpc/manual/latest/ TUFLOW Manual]</u>.<br> |
<br> | <br> | ||
− | + | {{Video|name=Animation_M10_001_GIS_02.mp4|width=1238}}<br> | |
<br> | <br> | ||
− | <li>The 2d_iwl polygon layer represents the initial water level of the dam | + | <li>The 2d_iwl polygon layer represents the initial water level of the dam as 59m at all cells within the polygon.<br> |
− | |||
− | |||
<br> | <br> | ||
− | + | {{Video|name=Animation_M10_001_GIS_03.mp4|width=1238}}<br> | |
<br> | <br> | ||
− | <li>The 2d_sa layer replaces the 2d_bc QT type. A 2d_sa inflow is typically more stable in situations of fast model changes, for example, dam breaks. <br> | + | <li>The 2d_sa layer replaces the 2d_bc QT type introduced in <u>[[Tutorial_M01 | Module 1]]</u>. A 2d_sa inflow is typically more stable in situations of fast model changes, for example, dam breaks. <br> |
+ | <li>Select the '''2d_sa_M10_inflow_001_R''' in the Layers panel and use the 'Apply TUFLOW Styles to Current Layer' tool.<br> | ||
<br> | <br> | ||
− | + | {{Video|name=Animation_M10_001_GIS_04.mp4|width=1238}}<br> | |
<br> | <br> | ||
</ol> | </ol> | ||
− | Increment the 2d_bc layer from | + | Increment the 2d_bc layer from Module 01 and remove the upstream inflow: |
− | <ol><li>Navigate to the '''Module_10\model\gis''' folder and open the 2d_bc_M01_001_L in QGIS. | + | <ol><li>Navigate to the '''Module_10\model\gis''' folder and open the '''2d_bc_M01_001_L.shp''' in QGIS. |
− | <li>Select the 2d_bc_M01_001_L layer in the Layers panel. | + | <li>Select the '''2d_bc_M01_001_L''' layer in the Layers panel. |
+ | <li>Use the 'Apply TUFLOW Styles to Current Layer' tool. | ||
<li>Click on the ‘Increment Selected Layer’ symbol from the TUFLOW Plugin toolbar. | <li>Click on the ‘Increment Selected Layer’ symbol from the TUFLOW Plugin toolbar. | ||
<li>Update the 'Output Layer Name' to '''2d_bc_M10_001_L.shp'''. | <li>Update the 'Output Layer Name' to '''2d_bc_M10_001_L.shp'''. | ||
<li>Click 'OK'.<br> | <li>Click 'OK'.<br> | ||
− | <li>The tool removes the source layer from the Layers panel and the 2d_bc_M10_001_L appears. | + | <li>The tool removes the source layer from the Layers panel and the '''2d_bc_M10_001_L''' appears. |
− | <li>Right click on the '2d_bc_M10_001_L' layer to toggle on Editing. | + | <li>Right click on the '''2d_bc_M10_001_L''' layer to toggle on Editing. |
− | <li>Zoom | + | <li>Zoom to the upstream inflow, select and delete the line. |
<li>Click 'OK' and turn off editing to save the edits.<br> | <li>Click 'OK' and turn off editing to save the edits.<br> | ||
<br> | <br> | ||
− | + | {{Video|name=Animation_M10_001_GIS_05.mp4|width=1238}}<br> | |
</ol> | </ol> | ||
<br> | <br> |
Latest revision as of 10:01, 23 September 2024
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:
- Go to Plugins > TUFLOW > Editing > Configure / Create TUFLOW Project.
- Change the folder which contains TUFLOW to the Module_10 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.
Method
Navigate to the Module_10\Tutorial_Data folder. Copy the below GIS files into the Module_10\TUFLOW\model\gis folder:
- 2d_zsh_M10_damwall_001_L
- 2d_vzsh_M10_dambreak_001_R
- 2d_iwl_M10_001_R
- 2d_sa_M10_inflow_001_R
Investigate the supplied files:
- Open the files, either:
- Drag and drop all .shp files into the QGIS workspace, or
- Select Layer > Add layer > Add Vector Layer and navigate to the Module_10\TUFLOW\model\gis folder.
- The 2d_zsh line layer represents the dam wall:
- A ‘Z’ attribute of 65 is specified, the elevations are set to 65 metres along the length of the line.
- The line has the same Shape_Width as the cell size, this is a thick breakline modifying whole cells.
- The 2d_vzsh polygon layer represents the location of the dam break:
- Shape_Width_or_dMax set to less than zero indicates that the vertices along the perimeter of the polygon are used to interpolate elevations.
- Trigger_Value sets the simulation time in hours that the dam break is to commence. A value of 1 indicates the dam break begins at 1 hour.
- Period sets the time in hours over which the change in elevation occurs. A value of 0.25 sets a period of 15 minutes replicating the break.
- The 2d_iwl polygon layer represents the initial water level of the dam as 59m at all cells within the polygon.
- The 2d_sa layer replaces the 2d_bc QT type introduced in Module 1. A 2d_sa inflow is typically more stable in situations of fast model changes, for example, dam breaks.
- Select the 2d_sa_M10_inflow_001_R in the Layers panel and use the 'Apply TUFLOW Styles to Current Layer' tool.
Increment the 2d_bc layer from Module 01 and remove the upstream inflow:
- Navigate to the Module_10\model\gis folder and open the 2d_bc_M01_001_L.shp in QGIS.
- Select the 2d_bc_M01_001_L layer in the Layers panel.
- Use the 'Apply TUFLOW Styles to Current Layer' tool.
- Click on the ‘Increment Selected Layer’ symbol from the TUFLOW Plugin toolbar.
- Update the 'Output Layer Name' to 2d_bc_M10_001_L.shp.
- Click 'OK'.
- The tool removes the source layer from the Layers panel and the 2d_bc_M10_001_L appears.
- Right click on the 2d_bc_M10_001_L layer to toggle on Editing.
- Zoom to the upstream inflow, select and delete the line.
- Click 'OK' and turn off editing to save the edits.
Conclusion
- A 2d_zsh layer was checked to enforce a dam wall in the model.
- A 2d_vzsh layer was inspected to simulate a break in the dam wall.
- A 2d_iwl layer was reviewed setting the initial water level within the dam upstream of the dam wall.
- The original upstream inflow was removed from the model, replaced by a source area boundary.
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