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This raster file contains the final material ID values used in the model,. itIt includes both 2D areas of the model and also 1D sections which utilise the 1D Water Level Line (1D mapping) functionality. If not using the material land use functionality (e.g. "<font color="blue"><tt>Set CnM </tt></font> <font color="red"><tt>==</tt></font><tt> 0.035</tt>"), this file may contain zero values. <br>
'''Note:''' If the material land use functionality is not used (e.g. the legacy command: "<font color="blue"><tt>Set CnM </tt></font> <font color="red"><tt>==</tt></font><tt> 0.035</tt>"), this file may contain zero values. <br>
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Output grid formats currently supported by TUFLOW include theGeoTIFF ESRI ASCII grid formatgrids (.asctif), binary grids (.flt) and geodeticESRI gridsASCII grid format (.tifasc). The .tcfpreferred commandformat <fontcan color="blue"><tt>Gridbe Formatset </tt></font>in <fontthe color="red"><tt>==</tt></font><tt>TUFLOW ASC</tt>Control File (.tcf) orusing: <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> FLT</tt>TIF or| <fontFLT color="blue"><tt>Grid Format| ASC</tt></font>. <fontThe color="red"><tt>==</tt></font><tt>default TIF</tt>output canformat beis usedTIF. toAll setof thethese preferredformats outputare format.widely recognised The(QGIS, defaultMapInfo, outputArcMap, formatSMS is TIFetc). The [[ASC_to_ASC#2023-03-AA_.28and_later.29 | asc_to_asc utility]] can be used to convert between ASC and TIF formats (in both directions).<br>
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Both of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc). The cell size of the DEM_M check file (and all raster outputs from TUFLOW) can be set with the .tcf command:<br>
<font color="blue"><tt>Grid Output Cell Size </tt></font> <font color="red"><tt>==</tt></font><tt> <cell size in metres or feetgrid_cell_size></tt><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 the cell side points the [[Check_Files_2d_uvpt | 2d_uvpt]] check file can be used. The _uvpt_check file is more suited to viewing the values at individual cells. Whilst the DEM_M can be used to quickly check large areas.<br> ▼
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▲This raster is aaligned north-south aligned raster and, so minor interpolation is required to display the TUFLOW model on this grid. To view the exact values at the cell side points , use the [[Check_Files_2d_uvpt | 2d_uvpt]] check file , can be used. The _uvpt_check filewhich is more suitedsuitable tofor viewing the values at individual cells. Whilst the DEM_M canis beuseful used tofor quickly checkchecking large areas.<br>
The DEM_M check file can be styled in your GIS software and you can also perform grid calculation between simulations.
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In the image below theThe DEM_M check file iscan shownbe forstyled thein theGIS spatialsoftware distributionand ofused thefor landgrid-based usecomparisons between simulations.<br>
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The image below shows the spatial distribution of land use represented in the DEM_M check file. The layer has been styled based on the material ID values.<br>
[[File:Check Files dem M 01.jpg]]<br>
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[[File:2d_DEM_M_check_01a.png]]<br>
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