Check Files 2d DEM Zmin: Difference between revisions
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Output grid formats currently supported by TUFLOW include GeoTIFF grids (.tif), binary grids (.flt) and ESRI ASCII grid format (.asc). The preferred format can be set in the TUFLOW Control File (.tcf) using: <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> TIF | FLT | ASC</tt>. The default output format is TIF. All of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc). The [[ASC_to_ASC#2023-03-AA_.28and_later.29 | asc_to_asc utility]] can be used to convert between ASC and TIF (in both directions).<br> |
Output grid formats currently supported by TUFLOW include GeoTIFF grids (.tif), binary grids (.flt) and ESRI ASCII grid format (.asc). The preferred format can be set in the TUFLOW Control File (.tcf) using: <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> TIF | FLT | ASC</tt>. The default output format is TIF. All of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc). The [[ASC_to_ASC#2023-03-AA_.28and_later.29 | asc_to_asc utility]] can be used to convert between ASC and TIF (in both directions).<br> |
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The cell size of the |
The cell size (resolution) of the DEM_Zmin check file (and all raster outputs from TUFLOW) can be set with the .tcf command: <font color="blue"><tt>Grid Output Cell Size </tt></font> <font color="red"><tt>==</tt></font><tt> <grid_cell_size></tt>. If this command is not set, the resolution defaults to: |
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* Half the smallest 2D cell size (TUFLOW Classic) |
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<font color="blue"><tt>Grid Output Cell Size </tt></font> <font color="red"><tt>==</tt></font><tt> <grid_cell_size></tt><br> |
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* Half the 2D cell size (TUFLOW HPC) |
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* Smallest 2D cell size (TUFLOW HPC with Quadtree) |
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This raster is a north-south aligned raster and so minor interpolation is required to display the TUFLOW model on this grid. To view the exact values at each point, use the [[Check_Files_2d_zpt | 2d_zpt]] check file, which is more suitable for viewing the values at individual zpts.<br> |
This raster is a north-south aligned raster and so minor interpolation is required to display the TUFLOW model on this grid. To view the exact values at each point, use the [[Check_Files_2d_zpt | 2d_zpt]] check file, which is more suitable for viewing the values at individual zpts.<br> |
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Latest revision as of 14:34, 23 February 2026
This file contains a raster based on the minimum Sub-Grid Sampling (SGS) elevations. This file is only produced when running a model with SGS.
Output grid formats currently supported by TUFLOW include GeoTIFF grids (.tif), binary grids (.flt) and ESRI ASCII grid format (.asc). The preferred format can be set in the TUFLOW Control File (.tcf) using: Grid Format == TIF | FLT | ASC. The default output format is TIF. All of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc). The asc_to_asc utility can be used to convert between ASC and TIF (in both directions).
The cell size (resolution) of the DEM_Zmin check file (and all raster outputs from TUFLOW) can be set with the .tcf command: Grid Output Cell Size == <grid_cell_size>. If this command is not set, the resolution defaults to:
- Half the smallest 2D cell size (TUFLOW Classic)
- Half the 2D cell size (TUFLOW HPC)
- Smallest 2D cell size (TUFLOW HPC with Quadtree)
This raster is a north-south aligned raster and so minor interpolation is required to display the TUFLOW model on this grid. To view the exact values at each point, use the 2d_zpt check file, which is more suitable for viewing the values at individual zpts.
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 TUFLOW Check Files
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