iMOD User Manual version 4.4 (html)

6.3Map Info

The functionality Map Info will display information about the selected map. Select the menu option Map and then choose Info Map to open the corresponding window.

Map Info window:


Current visible

This group displays the current extent of the graphical window. It shows the minimum and maximum x- and y coordinates and the delta-x and delta-y values (all in meters).


This dropdown menu shows all the files that are opened in the iMOD Manager. Click this menu to select the file for which the information should be displayed.


This string field shows the full pathname of the selected map.


Map Information
The functionality depends on the selected type of map (IDF, MDF and GEN) and is as follows:
  • IDF
    Select this option to open the IDF Edit Table window, see section Section 6.7.3;

  • MDF
    Select this option to open the MDF Files Sorter window, see section Section 6.5;

  • GEN
    Select this option to open the Content of Associated Datafile window, see section Section 6.11.1.

  • Alias:

    This string field shows the alias of the selected map. This name will be used in the iMOD Manager as well and offers the possibility to clarify identical file names. Any modification will be saved only whenever the Rename button will be clicked.


    Click this button to rename the entered Alias.

    Additional Information

    This field shows any additional information that is attached to the selected IDF. For other file types, this field will be showing the string: “No additional information found”.


    Click this button to edit the additional information in a regular text editor, e.g. Notepad. Whenever any modifications are saved from Notepad, iMOD will write the renewed additional information in the IDF file, automatically.

    Map Size

    This string will show the number of rows and columns in an IDF or IPF-file.


    This field shows for the whole map the minimum and maximum values for the x- and y coordinates and their total delta-x and total delta-y values (all in meters).

    Adjust Lower
    Left Corner

    Click this button to allow editing of the lower left corner of the IDF file. Click this button (rename to Save Adjustments) again to save the modification in the IDF file, iMOD will adjust the upper right corner accordingly.


    For equidistant IDF-files, it shows the width and height of the rows and columns, respectively. For non-equidistant IDF-files, it shows the minimum and maximum dimensions in both directions (all in meters).


    These will show the internal TOP and BOT values for IDF-files for so called voxel-IDF file. These are used to present the IDF as a horizontal layer in the Profile Tool and/or 33D Tool using the TOP and BOT values for the upper- and lower interface. If the values are greyed out, these values are not present in the current selected IDF file.


    Click this button to edit the TOP and BOT values. Once those values differ (TOP\(>\)BOT), the IDF-file will be treated as a voxel (see Section 9.5) in the 3D Tool and the Profile Tool.

    Adjusting TOP and BOT values:



    Click this button to save the adjustments for TOP and BOT.

    Voxel representation:

    Example of an IDF with concentration values displayed in 3D without TOP and BOT values. The IDF concentration values (0-70 mg/l) are used for positioning the cells on the Z axis. The legend is based on the concentration values.
    Example of the above concentrations IDF displayed in 3D with TOP and BOT values. The IDF-top and IDF-bottom values (-20 to -22 m NAP) are used for positioning the cells on the Z axis. The legend is based on the concentration values.
    target="_blank" >pictures/Ch-imod-files/IDF-concentrations-3D-type-voxel.png
    Displays the minimum and maximum data values of the IDF or IPF-file and the difference between them

    Shown Value:

    The minimum, maximum and difference between them of the current values plotted on the graphical canvas. This values represents the current statistics of data presented.


    Click this button to get the statistics of the selected IDF-file.

    Statistics window:


    Compute Statistics for:

    Select one of the files from the dropdown menu to compute statistics for.


    Click this button to (re)compute the statistics of the IDF-file.


    Click this button to get a graph of the percentiles of the IDF-file.

    Increase of

    Enter a value for the increment of the computed percentiles.

    Help ...

    Click this button to start the Help functionality.


    Click this button to close the Statistics window.


    Click this button the adjust the NoDataValue, type of Precision or internal Transformation.



    Click this button to store the adjustments into the IDF.


    Click this button to cancel any adjustments.

    NoData Value:

    This field shows the NoDataValue of the IDF-file.


    Select a type of precision for IDF files. By default IDF files are saved in single precision (4 bytes per real/integer number). To maintain a level of accuracy in the representation of number, it could be desirable to change the single- to double precision (8 bytes per real/integer number). Bear in mind that the entire IDF file becomes double in size if switched to double precision.


    Select a type of transformation for the values in the IDF. The data will be transformed internally. The available options are:

    • m \(\rightarrow \) cm: transforms meters into centimeters;

    • cm \(\rightarrow \) m: transforms centimeters into meter;

    • m \(\rightarrow \) mm: transforms meters into millimeters;

      mm \(\rightarrow \) m: transforms millimeters into meters;

      m3/day \(\rightarrow \) mm/day: transforms cubic meter per day into millimeters per day;

    • mm/day \(\rightarrow \) m3/day: transforms millimeters per day into cubic meters per day

    Create/Show Metadata …

    Click this button to display the metadata (.MET) file that might be associated to the selected map. For the example, iMOD will try to open the file HEAD_20050501_L1.MET. If the file does not exist, iMOD will create the file. This function is strongly discouraged for IDF files, use the Edit button to add additional info to an IDF file instead.

    Help …

    Click this button to start the iMOD Help Functionality.


    Hides the iMOD Manager. The iMOD Manager can be displayed again by choosing the menu option View and then choose the option iMOD Manager.