TUFLOW HR Output: Difference between revisions
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[[File:breakline_h_intp_output.png|480px]]<br>
[[File:HR_thin_brk_off.png|480px]]<br>
'''HR Thin Z Line Output Adjustment == OFF'''
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Any further questions please email TUFLOW support: [mailto:support@tuflow.com?Subject=TUFLOW%201D%20gates%20help support@tuflow.com]
<font color="blue"><tt>HR Thin Z Line Output Adjustment </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>{OFF} | ON CELL SIDES | ON ALIGNMENT</tt></font>
* “OFF”: the default option, does not apply any water level adjustment.
* “ON CELL SIDES”: two water levels, rather than one, are stored at cell corners selected by thin breaklines. These water levels are used to interpolate HR water levels on either side of thin breaklines. This option produces a sudden drop in water level across the breakline as illustrated in the figure below, noting the sudden drop follows the 2D cell faces where the breakline is applied.
* “ON ALIGNMENT”: As an extension to the “ON CELL SIDES” option, this method moves and aligns the 2D cell corner vertices to the original alignment of the breakline for producing HR water level and depth. The arrows in the figure below show how vertices of the TIN are moved to align with the breakline. This can produce substantially improved high-resolution mapping along thin breaklines with substantial drops in water levels, especially for larger 2D cell sizes. Note that the cell corners are NOT shifted for the hydraulic calculations.
[[File:HR_thin_brk_on.png|480px]] [[File:HR_thin_brk_on_adj.png|480px]]<br>
'''HR Thin Z Line Output Adjustment == ON CELL SIDES (left) and ON ALIGNMENT (right)'''
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.
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