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Created page with "<ol> =Introduction= This utility performs a variety of operations on the TUFLOW 2D outputs. Valid formats are .xmdf (as of utility version 2012-10-AC) and .dat files. This page..." |
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<u>Description</u><br>
This can be used to compare two datasets. If a third files is specified, the third file is used as the output file. The output filename can also be specified with the -out option. The output is the first results minus the second result file.<br>
A special wet/dry algorithm is used. If water level results are not specified (_h.dat or -typeH), the algorithm opens these files, as well as opens the .2dm file associated with the results files, and uses the water levels and ZH Zpt values (for 2D cells) and elevations at the WLL triangle corners to determine whether a node (corner of an mesh element) is wet or dry. This allows two special values to be output in the event that a node is dry in one results file and wet in the other or vice versa. A value of
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The -t option can be used to carry out the difference at a particular time (rather than all times). The most common time is to take the difference at the flood peak, ie. specify t99999.<br>
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