fracture verify-file command


fracture verify-file keyword

Primary keywords:

file    format    property-file

Verify a DFN file. Before importing fractures from a DFN file, one should use the fracture verify-file command to check the validity/characteristics of the fractures represented in the file. The following quantities are displayed:

  • error information while reading the DFN file;
  • the number of fractures in the file;
  • the minimum/maximum spatial range of the fractures;
  • the minimum/average/maximum fracture {length in 2D; area in 3D}; and
  • the DFN center.

This tool can be very useful when identifying invalid fractures, as well as the appropriate offset/scaling to be used with the imported fractures.

file s

Specify the DFN file to verify.

format keyword

Specify the file format. If no format is specified, then the file extension of the name specified with the file keyword is used to determine the file format. A ‘.dat’ file extension is assumed to be in the itasca format, a ‘.flab’ file extension is assumed to be in the fishlab format, and a ‘.fab’ file extension is assumed to be in the fracman format.


The itasca format is as specified in DFN-Related File Formats, and is the default format.

fishlab (3D ONLY)

The fishlab format is the flowplane format used in FISHLab.


The fracman format follows the FracMan ASCII output format.

property-file s

Indicate the property file to be queried. See DFN-Related File Formats for a definition of the property file format.

Usage Example

The following example illustrates how the fracture verify-file command is used to pre-parse a DFN file. It will print useful fracture statistics from the DFN file, including:

  • the number of properties,
  • the number of fractures,
  • the size of the containing domain in \(x\), \(y\) and \(z\) directions,
  • the range of fracture areas, that can be converted into equivalent diameters, and
  • the fracture center.

Files are generated with the example of the fracture export command.

model new
model domain extent -4 4
;Verify fractures in a file - see the associated information in the console
fracture verify-file 'example.dat' format itasca ...
         property-file 'example_prop.dat'
program return   

See Also: fracture export | fracture import