Difference between revisions of "Tutorial M10 002 GIS Inputs QGIS"

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(Created page with "= Introduction = QGIS is used to create, import and view input data.<br> <br> = Method = Increment the dambreak layer from Part 1 to change time trigger into water level tri...")
 
 
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Increment the dambreak layer from Part 1 to change time trigger into water level trigger: <br>
 
Increment the dambreak layer from Part 1 to change time trigger into water level trigger: <br>
 
<ol>
 
<ol>
<li>Navigate to the '''Module_10\model\gis''' folder and open the 2d_vzsh_M10_dambreak_001_R in QGIS.
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<li>Navigate to the '''Module_10\model\gis''' folder and open the '''2d_vzsh_M10_dambreak_001_R.shp''' in QGIS.
<li>Select the 2d_vzsh_M10_dambreak_001_R layer in the Layers panel.  
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<li>Select the '''2d_vzsh_M10_dambreak_001_R''' layer in the Layers panel.  
 
<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>The tool automatically renames the '2d_vzsh_M10_dambreak_'''001'''_R' to '2d_vzsh_M10_dambreak_'''002'''_R'.
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<li>The tool automatically renames the '''2d_vzsh_M10_dambreak_''001''_R''' to '''2d_vzsh_M10_dambreak_''002''_R'''.
 
<li>Select to remove the source layer from the workspace.  
 
<li>Select to remove the source layer from the workspace.  
 
<li>Click 'OK'.<br>
 
<li>Click 'OK'.<br>
<li>The tool removes the source layer from the Layers panel and the 2d_vzsh_M10_dambreak_002_R appears:<br>
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<li>The tool removes the source layer from the Layers panel and the '''2d_vzsh_M10_dambreak_002_R''' appears:<br>
 
<br>
 
<br>
[[File:Animation M10 002 GIS 01.gif]]<br>
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{{Video|name=Animation_M10_002_GIS_01.mp4|width=1230}}<br>
 
<br>
 
<br>
<li>Right click on the '2d_vzsh_M10_dambreak_002_R' layer to toggle on Editing.  
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<li>Right click on the '''2d_vzsh_M10_dambreak_002_R''' layer to toggle on Editing.  
 
<li>Click on the 'Identify Features' tool and click on the polygon.
 
<li>Click on the 'Identify Features' tool and click on the polygon.
 
<li>Update the following attributes:
 
<li>Update the following attributes:
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<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>
[[File:Animation M10 002 GIS 02.gif]]<br>
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{{Video|name=Animation_M10_002_GIS_02.mp4|width=1230}}<br>
 
<br>
 
<br>
  
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<li>In the Run ID box write 'M10_dambreak_002'.
 
<li>In the Run ID box write 'M10_dambreak_002'.
 
<li>Tick the 'Points' Geometry Type and hit 'OK'. The 2d_vzsh layer appears in the Layers panel.  <br>
 
<li>Tick the 'Points' Geometry Type and hit 'OK'. The 2d_vzsh layer appears in the Layers panel.  <br>
<li>Right click on the ‘2d_zsh_M10_dambreak_002_P’ and toggle on Editing.
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<li>Right click on the '''2d_zsh_M10_dambreak_002_P''' and toggle on Editing.
 
<li>Select 'Add Point Feature'.
 
<li>Select 'Add Point Feature'.
 
<li>Digitise a point within the dam upstream of the location of the dam break. <br>
 
<li>Digitise a point within the dam upstream of the location of the dam break. <br>
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<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>
[[File:Animation M10 002 GIS 03.gif]]<br>
+
{{Video|name=Animation_M10_002_GIS_03.mp4|width=1230}}<br>
 
<br>
 
<br>
 
</ol>
 
</ol>

Latest revision as of 11:12, 15 August 2023

Introduction

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

Method

Increment the dambreak layer from Part 1 to change time trigger into water level trigger:

  1. Navigate to the Module_10\model\gis folder and open the 2d_vzsh_M10_dambreak_001_R.shp in QGIS.
  2. Select the 2d_vzsh_M10_dambreak_001_R layer in the Layers panel.
  3. Click on the ‘Increment Selected Layer’ symbol from the TUFLOW Plugin toolbar.
  4. The tool automatically renames the 2d_vzsh_M10_dambreak_001_R to 2d_vzsh_M10_dambreak_002_R.
  5. Select to remove the source layer from the workspace.
  6. Click 'OK'.
  7. The tool removes the source layer from the Layers panel and the 2d_vzsh_M10_dambreak_002_R appears:



  8. Right click on the 2d_vzsh_M10_dambreak_002_R layer to toggle on Editing.
  9. Click on the 'Identify Features' tool and click on the polygon.
  10. Update the following attributes:
    • Trigger_1: WL_Trigger
    • Trigger_Value: 60
    • Period: 0.5
  11. Click 'OK' and turn off editing to save the edits.



Create a point to set the location of the water level trigger:

  1. Click on the ‘Import Empty File’ symbol from the TUFLOW Plugin toolbar.
  2. Select '2d_vzsh' from the Empty Type list.
  3. In the Run ID box write 'M10_dambreak_002'.
  4. Tick the 'Points' Geometry Type and hit 'OK'. The 2d_vzsh layer appears in the Layers panel.
  5. Right click on the 2d_zsh_M10_dambreak_002_P and toggle on Editing.
  6. Select 'Add Point Feature'.
  7. Digitise a point within the dam upstream of the location of the dam break.
  8. An attributes dialog displays, enter the following attributes:
    • Shape_Option: TRIGGER
    • Trigger_1: WL_Trigger
  9. Click 'OK' and turn off editing to save the edits.



Conclusion

  • A 2d_vzsh region layer was modified to simulate a dambreak based on water level at specific point.
  • A 2d_vzsh point layer was created to set the location of the water level trigger.


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