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TUFLOW HR Output: Difference between revisions

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Note the this feature (at present) only works for thin breaklines in Z Shape (2d_zsh) layers. Thick/wide breaklines raises more than 1 rows of cell centres and 2 rows of cell faces, and thus do not experience similar HR interpolation issue.
 
=Showing Face ElevationElevations in HR_Z_DEM_Z_HR Check File =
When modelling breaklines in TUFLOW, thin breaklines modify the cell face elevations but do not modify the cell storages (see Section 7.2.6.2). When outputting the high-resolution outputs, the user can setchoose whether the cell face elevations are included using the following .tcf command.
 
<font color="blue"><tt>HR Grid Output Use Face Elevations </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>{ON} | OFF</tt></font>
 
The* “ON” (default is ON, to): use face elevations toin indicate[[Check_Files_2d_DEM_Z_HR | _DEM_Z_HR]] check file. This option accurately shows the cell faces thatwhere water can be hydraulically blocked. However, when cell faces are angled with the thin breakline, this can create 'pockets' of lower elevations in the check file that does not exist in reality.
* “OFF”: Face elevations are not used in [[Check_Files_2d_DEM_Z_HR | _DEM_Z_HR]] check file. This is an useful option for report writing, as 'clean' high resolution DEM images can be generated reflecting all geometry updates except for the Thin Breakline updates at cell faces.
 
[[File:HR_Z_Use_Face_Elevations_ON.PNG|480px]] [[File:HR_Z_Use_Face_Elevations_OFF.PNG|480px]]<br>
'''HR Grid Output Use Face Elevations == ON (left) and OFF (right)'''
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