Read MI Table Links == <.mif/.mid_file> 50
Read Materials File == 51
Relative Resistance == [ {RELATIVE} | MATERIAL ] 51
S Channel Approach == [ PRE 2004-06-AA ] 51
Storage Above Structure Obvert == [ {CHANNEL WIDTH} | ] 51
Trim XZ Profiles == [ ON | {OFF} ] 52
XS Database == 52
[ BG | CS | NA | VG ].... ! Fixed Field Flags 60
BG Data == 60
CS Data == 60
NA Data == 61
VG Data == 61
Read MI IWL == <.mif/.mid_file> 69
Set IWL == 69
BC Database == <.csv_file> 77
BC Event Name == 77
BC Event Text == 78
EB Data == 78
Read MI BC == <.mif/.mid_file> 78
Cell Size == 9
Grid Size (N,M) == , 9
Grid Size (X,Y) == , 9
Orientation == , 9
Orientation Angle == 10
Origin == , 10
Read MI Location == <.mif/.mid_file> 10
Read TGA == <.tga_file> 18
Read TGF == <.tgf_file> 18
External Bndy == , , , 27
Read MI [ MAT | IWL | CnM | FRIC | WrF | FLC ] == 28
Read MI Code [ {} | BC ] == 28
Read MID [ CODE | MAT | IWL | CnM | FRIC | WrF | FLC ] == 28
Read MID Grid == 29
Set [ CODE | MAT | IWL | CnM | FRIC | WrF ] == 29
Write MI Domain == <.mif/.mid_file> 29
Write MI Grid == <.mif/.mid_file> 29
Allow Dangling Z Lines == [ ON | {OFF} ] 38
Default Land Z == 38
Interpolate ZC [ {} | ALL ] [ {} | LOWER ] 38
Interpolate [ ZHC | ZUVC ] [ {} | ALL ] [ {} | AFTER ] 39
Pause When Polyline Does Not Find Zpt == [ ON | {OFF} ] 39
Read MI Z Line [ {} | RIDGE or MAX | GULLY or MIN | HX ] [ {} | CC ] [ {} | THICK ] [ {} | ADD ] == 40
Read MI Zpts [ {} | ADD | MAX | MIN ] == 41
Read MID Zpts [ {} | ADD | MAX | MIN ] == 41
Set Zpt == 42
Write MI Zpts == 42
ZC == MIN(ZU,ZV) 42
Read File == 51
Stop 51
BC Database == <.csv_file> 9
BC Event Name == 9
BC Event Text == 10
Global Rainfall Area Factor == [ {1.0} | ] 10
Global Rainfall BC == 10
Global Rainfall Continuing Loss == [ {0} | ] 10
Global Rainfall Initial Loss == [ {0} | ] 10
Read MI BC == <.mif/.mid_file> 10
Read MI SA [ {} | Rainfall ] == <.mif/.mid_file> 11
Unused HX and SX Connections == [ {ERROR} | WARNING ] 11
External Bndy == , , ,
(Optional)
Now a largely redundant command as TUFLOW automatically assigns boundary codes to cells based on the GIS boundary condition layer (see Section 3.17.7). The command assigns external boundary codes (code = 2) from cell (n1,m1) to cell (n2,m2). Note n is the nth row and m is the mth column from the lower left hand corner.
Read MI [ MAT | IWL | CnM | FRIC | WrF | FLC ] ==
Read MI Code [ {} | BC ] ==
(Optional)
Reads the code, material, IWL, CnM, fric, WrF or FLC values from a GIS layer exported as .mif/.mid files. Except for the “Read MI Code BC” combination, the first attribute (column) in the file must be the value of the code, material ID, initial water level, bed resistance value, ripple height, weir factor or form loss coefficient values attached to the GIS objects. Any other attribute columns are ignored.
For “Read MI Code BC”, code values are extracted from objects in a 2d_bc layer that have a Type attribute of “CD”. The code value is taken from the f attribute. See Table 4 .24 in Section 3.17.7.
Any cell falling within/on an object is assigned the object’s value. The object may be a region (polygon), line or point. For CODE, MAT, IWL, CnM and FRIC the cell centre must fall within the region, or if the object is a point, the point must fall within the cell. For WrF and FLC the mid-sides of the cell are used rather than the cell centre.
Note:_This_command_is_not_yet_available_for_specifying_IWL_from_the_.tcf_file._However,_the_Read_MID_command_may_be_used_in_the_.tcf_file.'>Note: This command is not yet available for specifying IWL from the .tcf file. However, the Read MID command may be used in the .tcf file.
WrF values can vary throughout the model. A value of zero (0) turns the weir function OFF at BOTH the u and v points of a cell (ie. right and upper sides). The WrF values are multiplied by the general weir factor specified in the .tcf file.
This command is similar to the Read MID command, but is preferred as the GIS layer is read directly, offering better efficiency and quality control.
Read MID [ CODE | MAT | IWL | CnM | FRIC | WrF | FLC ] ==
(Optional)
Reads the code, material, IWL, CnM, fric, WrF or FLC values from a .mid or similarly formatted file. The first three columns in the file must be "n, m, " n and m are the row, column and is the value of the grid code, material type, initial water level, bed resistance value, ripple height, weir factor or form loss coefficient. Any columns after the third are ignored.
Note: An IWL .mid file can also be read from the .tcf file (see Section A.8). This is preferable if the initial water levels vary from simulation to simulation as it removes the necessity to create a new .tgc file each time the initial water levels change.
WrF values can vary throughout the model. A value of zero (0) turns the weir function OFF at BOTH the u and v points of a cell (ie. right and upper sides). The WrF values are multiplied by the general weir factor specified in the .tcf file.
Read MID Grid ==
(Optional)
Reads in a text file, which must be of the same format as the first four data columns of the .mid file produced by the Write MI Grid or Write Check Files command. The file could also be created by a text editor or in Excel .csv format.
Only the first four data items on each row are read in free-field comma-delimited format. These four fields must be n, m, Code, Material as defined in Section 3.11.1. Note: the Grid_Ref and ZC attributes created by the Write MI Grid command, and any other additional columns are ignored.
Note: This command is now largely redundant with the use of the Read MI commands.
Set [ CODE | MAT | IWL | CnM | FRIC | WrF ] ==
(Optional)
Sets the cell code, material, initial water level, bed resistance value, ripple height or weir factor value over the entire grid. Used for initialising grid values.
Material value is a Bed Material ID used for defining a Manning’s n (see Section A.5)
Note there is an equivalent IWL command in the .tcf file that is often preferred as the IWL may vary from simulation to simulation.
CnM is a Chezy C, Manning’s n or Manning’s M value.
WrF is the Weir calibration factor (this value is multiplied by the general weir factor specified in the .tcf file). A value of zero disables the weir application unless overridden by subsequent commands that assign WrF values.
Write MI Domain == <.mif/.mid_file>
(Optional)
Creates 2d_dom.mif and .mid files containing a rectangular region representing the extent of the 2D domain. Useful for cross-checking the 2D domain’s extent in the GIS rather than generating a large 2d_grd file using Write MI Grid. Incorporated in Build 2005-05-AN.
A 2d_dom layer is also created using Write Check Files, however, it will contain a rectangular region for all 2D domains.
Write MI Grid == <.mif/.mid_file>
(Optional)
Creates .mif and .mid files representing the 2D domain’s grid based on the dimensions, origin and orientation. The grid is a mesh of square polygons.
All information relating to grid cells as defined by any previous commands is included.
Tip: As a first step, use this command on its own to produce an empty grid from which to manipulate in the GIS and read back in using the Read MID Grid command.
Tip: Use this command to check that the grid’s data (code, material, etc.) is setup correctly by writing to temporary mif/mid files, and importing and viewing in the GIS.
Note: This command is now largely redundant with the use of the Read MI commands, ie. there is no need to generate a 2d_grd layer using this command for input purposes.
A 2d_grd layer is also created using Write Check Files, however, it will contain the active cells of all 2D domains.
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