TUFLOW Check Files: Difference between revisions

Depending on the size of the model, the check files may contain a large amount of data, for example the _grd_check file may contain thousands or millions of cells. As a modeller you probably won't inspect each cell to ensure that the data is value, however you may want to view this for the entire model. Thematic mapping or styling the input layers can be used in your GIS software to do this.

Some tips are given below for a range of GIS platforms, however, the functionality is likely to be available in almost all GIS platforms:<br>

* [[MapInfo_Style_Check_Files | MapInfo style check files]]

=Check File Types=

The check files are separated into 2D and 1D check files. The output location for these is controlled by commands in the .tcf and .ecf as described above. Not all check file types will be output for all models, if a model has no 2D Z Shape (2d_zsh) format topography modifiers then the _zsh_zpt check file type will not be output by TUFLOW. A list of the check file types is provided below. For more information on each of these please click on the page link.<br>

!colspan="2" | Raster Check Files

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|[[Check_Files_2d_DEM_Z | _DEM_Z]]|| A DEM of the final ground/bathymetry elevations, including those from any 1D WLL mesh. The file is given a DEM_Z extension, and can be readily opened by most GIS and other GUIs. The default size of the grid cells is half the smallest 2D cell size. This can be changed using the <font color="blue"><tt>Grid Output Cell Size </tt></font> <font color="red"><tt>==</tt></font> command. To exclude writing this file, include “DEM_Z” in the Write Check Files EXCLUDE list. The <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font> command can be used to control the format of the file. <br>

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! colspan="2" | Vector Check Files

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|[[Check_Files_2d_bg_uvpt_check | _bg_uvpt_check]]|| Contains information on adjustments to the ZU/ZV cell sides as modified by <font color="blue"><tt>Read GIS BG Shape</tt></font> <font color="red"><tt> ==</tt></font> command.

| [[Check_Files_2d_sac | _sac_check]]|| GIS layer of the lowest cell selected for <font color="blue"><tt>Read GIS SA</tt></font> inputs, and cells selected if using <font color="blue"><tt>Read GIS SA PITS</tt></font>.

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| [[Check_Files_2d_uvpt | _uvpt_check]]|| GIS layer containing the initial velocities, roughness value, FLC, WrF, FC lid depth and FC BD factor at the U and V points. For materials that vary Manning’s n with depth, the Manning_n attribute contains the Manning’s n value at the higher depth.

| [[Check_Files_2d_vzsh | _vzsh_check]]|| Contains information on Zpts that have been modified by <font color="blue"><tt>Read GIS Variable Z Shape </tt></font> <font color="red"><tt>==</tt></font> commands.

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| [[Check_Files_2d_zpt | _zpt_check]]|| GIS layer of the final 2D Zpts. Represents the final Zpts including all modifications from the .tgc file, and any flow constrictions in the .tcf file.<br>

Can also be written at different stages within a .tgc file (see the <font color="blue"><tt>Write GIS Zpts</tt></font> command). The file contains all modifications to the 2D Zpts at the point in the .tgc file that it is written. This allows checking of the elevations at different stages of building the topography.

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! colspan="2" | Vector Check Files

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Any generated pit channels are shown as a small channel flowing from north to south into the pit node. The upstream pit channel node that is generated is also shown. The length of the pit channel is controlled by <font color="blue"><tt>Pit Channel Offset </tt></font> <font color="red"><tt>==</tt></font> command.

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The _WLLo_check layers are written for ESTRY 1D domains, whereas the _xWLLo_check layers are written for external 1D domains, such as Flood Modeller or XP-SWMM.

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The _WLLp_check layers are written for ESTRY 1D domains, whereas the _xWLLp_check layers are written for external 1D domains, such as Flood Modeller or XP-SWMM.

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!colspan="2" | Vector Check Files

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In the _1d_to_2d_check layer, all SX cells connected to the same 1D node are grouped together as one object, and the Lowest_ZC_2D value is the lowest 2D cell ZC value of all the cells connected to the 1D node. For the _1d_to_2d_check_R layer, it’s not possible to group the cells as one object, each cell is separate, when clicking on the SX cells, note that the value is still the lowest ZC of all 2D cells, not of the individual cell. For 2D HX links, the value is the ZC value of the individual cell.

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!colspan="2" | Vector Check Files

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