Tutorial M04 002 Check Files QGIS GPKG: Difference between revisions
Jump to navigation
Jump to search
Content deleted Content added
| Line 5: | Line 5: | ||
= Method = |
= Method = |
||
This tutorial introduces: |
This tutorial introduces: |
||
:*[[Check_Files_2d_DEM_Z | _DEM_Z]] |
|||
:*[[Check_Files_2d_zsh_zpt | _zsh_zpt_check_P]] |
|||
:*[[Check_Files_2d_bg_uvpt_check | _bg_uvpt_check_P]] |
:*[[Check_Files_2d_bg_uvpt_check | _bg_uvpt_check_P]] |
||
| Line 12: | Line 10: | ||
<ol> |
<ol> |
||
<li>Open the files, either: |
<li>Open the files, either: |
||
:*Within the QGIS Browser Panel, navigate to '''Module_04\TUFLOW\check\M04_5m_002_Check.gpkg''' and double click the following |
:*Within the QGIS Browser Panel, navigate to '''Module_04\TUFLOW\check\M04_5m_002_Check.gpkg''' and double click the following layer, or |
||
::*'''M04_5m_002_zsh_zpt_check_P''' |
|||
::*'''M04_5m_002_bg_uvpt_check_P''' |
::*'''M04_5m_002_bg_uvpt_check_P''' |
||
:*In File Explorer, navigate to the '''Module_04\TUFLOW\check''' folder, drag and drop the '''M04_5m_002_Check.gpkg''' into the QGIS workspace and select the |
:*In File Explorer, navigate to the '''Module_04\TUFLOW\check''' folder, drag and drop the '''M04_5m_002_Check.gpkg''' into the QGIS workspace and select the layer above. |
||
<li>Navigate to the '''Module_04\TUFLOW\check''' folder and open the '''M04_5m_002_DEM_Z.tif''' layer into QGIS. |
|||
<li>Use the 'Apply TUFLOW Styles to Open Layers'. |
<li>Use the 'Apply TUFLOW Styles to Open Layers'. |
||
<li>Use the 'Apply GPKG Layer Names'. |
<li>Use the 'Apply GPKG Layer Names'. |
||
| ⚫ | |||
<li>The DEM_Z grid shows the final elevations used for the model calculations. Change the styling and inspect the area of the embankment is lowered. See <u>[[Tutorial_M02_001_Check_Files_QGIS_GPKG | Module 2]]</u> for more information on how to review topographic modifications. Note: The DEM_Z appears different to the input DEM as the resolution of the DEM_Z is coarser (2.5m) than the input file (0.5m).<br> |
|||
<li>The zsh_zpt_check file displays the elevation points changed by Z shape topographic update and the TUFLOW styling provides an indication of the elevation difference.<br> |
|||
<br> |
|||
{{Video|name=Animation_M04_GPKG_Check_01.mp4|width=1280}}<br> |
|||
<br> |
|||
| ⚫ | |||
<br> |
<br> |
||
{{Video|name=Animation_M04_GPKG_Check_02.mp4|width=1280}} |
{{Video|name=Animation_M04_GPKG_Check_02.mp4|width=1280}} |
||
Revision as of 11:56, 4 February 2025
Introduction
QGIS is used to import the check files and review the topographic modification cutting through the embankment, and the 2d bridge.
Method
This tutorial introduces:
Review the check files:
- Open the files, either:
- Within the QGIS Browser Panel, navigate to Module_04\TUFLOW\check\M04_5m_002_Check.gpkg and double click the following layer, or
- M04_5m_002_bg_uvpt_check_P
- In File Explorer, navigate to the Module_04\TUFLOW\check folder, drag and drop the M04_5m_002_Check.gpkg into the QGIS workspace and select the layer above.
- Use the 'Apply TUFLOW Styles to Open Layers'.
- Use the 'Apply GPKG Layer Names'.
- The bg_uvpt_check file shows the Zpts where the 2d_bg is applied as a thin line. Only the cell sides have the flow constriction applied. The attribute table shows the values specified in the 2d_bg and the final elevation of the invert level after applying the Z shape.
Conclusion
- The DEM_Z and zsh_zpt_check file was used to ensure the cut through was correctly applied to allow flow through the embankment.
- The lfcsh_uvpt_check was viewed showing the form losses and blockages applied to the thin line.
| Up |
|---|
 Back to Module 4 Main Page
|