User's guide of Proceessing Modflow 5.0

Processing Modflow 163
Use the Search and Modify dialog box (Fig. 3.61), if you want to automatically modify part of
the cell data or if you want to create solid fill plots based on the cell data. The items of the dialog
box are described below:
< The Trace Table: You define a search range and its attributes in an active row of the table.
A row is active when the Active flag is checked. The search range is given by the minimum
(lower limit) and the maximum (upper limit). The color in the Color column will be
assigned to the finite-difference cells that have a value located within the search range.
You can automatically assign regularly-spaced search ranges to each active row by
clicking on one of the headers Minimim or Maximum, then enter a minimum and a
maximum value to a Search Level dialog box.
The colors can be automatically assigned so you will get a gradational change from one
color to another. To do this, click the header Color of the table and assign a minimum color
and a maximum color to a Color Spectrum dialog box. To change the color individually,
click on the colored cell (a button appears), then click on the button and select a color
from a Color dialog box.
According to the user-specified value (in the Value column) and the operation option (in
the Options column), you can easily modify the cell values. The available operations are
listed below:
- Display Only: No operation takes place.
- Replace: The cell values are replaced by the user-specified value.
- Add: The user-specified value is added to the cell values.
- Multiply: The cell values are multiplied by the user-specified value.
< Parameter drop-down box: For particular packages, in which a cell has more than one
value (e.g., the River package of MODFLOW), this drop-down box contains the available
parameter type(s). Choose the parameter type for which the Search and Modify operation
will apply.
< Ignore Inactive Cells: If it is checked, the Search and Modify operation will only be applied
to active cells.
< Maps: You may display background maps (DXF or Line Map) by using the Maps Options
dialog box. See section 3.9 for details.
< Save... and Load...: The entries in the Trace Table can be saved or loaded in trace files.
The format of the trace file is given in Appendix 2.
3.8 The Value Menu