Difference between revisions of "Tutorial M10 001 Check Files QGIS GPKG"
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= Introduction = | = Introduction = | ||
QGIS is used to import the check files and review the dam break.<br> | QGIS is used to import the check files and review the dam break.<br> | ||
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<li>The zsh_zpt_check file contains the Zpts modified by the 2d_zsh layers with updated elevation, change in elevation and source layer. The Shape_Width attribute is specified the same as the cell size, a thick breakline is used with entire cells being modified. The TUFLOW style colour codes the symbols based on the amount raised, or lowered. <br> | <li>The zsh_zpt_check file contains the Zpts modified by the 2d_zsh layers with updated elevation, change in elevation and source layer. The Shape_Width attribute is specified the same as the cell size, a thick breakline is used with entire cells being modified. The TUFLOW style colour codes the symbols based on the amount raised, or lowered. <br> | ||
<br> | <br> | ||
| − | + | {{Video|name=Animation_M10_GPKG_001_Check_01.mp4|width=1238}}<br> | |
<br> | <br> | ||
<li>The vzsh_zpt_check file contains information on the elevation points that change over time, elevation change, final elevation and trigger conditions.<br> | <li>The vzsh_zpt_check file contains information on the elevation points that change over time, elevation change, final elevation and trigger conditions.<br> | ||
<li>The sh_obj_check file displays the TIN triangles created by TUFLOW during the model initialisation and is useful to review for all merge polygons.<br> | <li>The sh_obj_check file displays the TIN triangles created by TUFLOW during the model initialisation and is useful to review for all merge polygons.<br> | ||
<br> | <br> | ||
| − | + | {{Video|name=Animation_M10_GPKG_001_Check_02.mp4|width=1238}}<br> | |
<br> | <br> | ||
<li>The grd_check is the 2D grid defined by the 2d_code layer and contains a region object for each cell with attributes, e.g. the IWL. <br> | <li>The grd_check is the 2D grid defined by the 2d_code layer and contains a region object for each cell with attributes, e.g. the IWL. <br> | ||
<br> | <br> | ||
| − | + | {{Video|name=Animation_M10_GPKG_001_Check_03.mp4|width=1238}}<br> | |
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<li>The sac_check contains information on the lowest cells for each SA boundary region. The upstream 2d_bc QT inflow was replaced with a 2d_sa inflow. | <li>The sac_check contains information on the lowest cells for each SA boundary region. The upstream 2d_bc QT inflow was replaced with a 2d_sa inflow. | ||
<li>The bcc_check contains information on the 2D boundaries, it shows the cells conveying water out of the model selected by the 2d_bc HQ type boundary (based on a slope).<br> | <li>The bcc_check contains information on the 2D boundaries, it shows the cells conveying water out of the model selected by the 2d_bc HQ type boundary (based on a slope).<br> | ||
<br> | <br> | ||
| − | + | {{Video|name=Animation_M10_GPKG_001_Check_04.mp4|width=1238}}<br> | |
</ol> | </ol> | ||
<br> | <br> | ||
Latest revision as of 13:48, 14 August 2023
Introduction
QGIS is used to import the check files and review the dam break.
Method
This tutorial introduces:
Review the check files:
- Open the files, either:
- Within the QGIS Browser Panel, navigate to Module_10\TUFLOW\check\M10_5m_001_Check.gpkg and double click the following layers, or
- M10_5m_001_zsh_zpt_check_P
- M10_5m_001_vzsh_zpt_check_P
- M10_5m_001_sh_obj_check_R
- M10_5m_001_grd_check_R
- M10_5m_001_bcc_check_R
- M10_5m_001_sac_check_R
- In File Explorer, navigate to the Module_10\TUFLOW\check folder, drag and drop the M10_5m_001_Check.gpkg into the QGIS workspace and select the layers above (hold Ctrl to select multiple).
- Navigate to the Module_10\TUFLOW\check folder and open the M10_5m_001_DEM_Z.tif layer into QGIS.
- Use the 'Apply TUFLOW Styles to Open Layers'.
- Use the 'Apply GPKG Layer Names'.
- The DEM_Z grid shows the final elevations (at time 0) used for the model calculations. The elevation changes due to the dambreak are inspected in the Results section.
- The zsh_zpt_check file contains the Zpts modified by the 2d_zsh layers with updated elevation, change in elevation and source layer. The Shape_Width attribute is specified the same as the cell size, a thick breakline is used with entire cells being modified. The TUFLOW style colour codes the symbols based on the amount raised, or lowered.
- The vzsh_zpt_check file contains information on the elevation points that change over time, elevation change, final elevation and trigger conditions.
- The sh_obj_check file displays the TIN triangles created by TUFLOW during the model initialisation and is useful to review for all merge polygons.
- The grd_check is the 2D grid defined by the 2d_code layer and contains a region object for each cell with attributes, e.g. the IWL.
- The sac_check contains information on the lowest cells for each SA boundary region. The upstream 2d_bc QT inflow was replaced with a 2d_sa inflow.
- The bcc_check contains information on the 2D boundaries, it shows the cells conveying water out of the model selected by the 2d_bc HQ type boundary (based on a slope).
Conclusion
- The topographic modifications representing the dam wall, dam break and initial water level were inspected.
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