User's guide of Proceessing Modflow 5.0

198 Processing Modflow
and computer graphics techniques. Akin and Siemes (1988) and Davis (1973) provide necessary
mathematical background skills on the statistics and data analysis in geology.
Starting the Field Interpolator
The Field Interpolator runs independently from PMWIN. To start the program, select Field
Interpolator from the Tools menu of PMWIN or use the Start button on the task bar in
Windows. The available settings of the Field Interpolator (Fig. 5.1) are grouped under three
tabs - Files, Grid Position and Search/Gridding Method. These tabs are described below.
- Files:
5.2 The Field Interpolator
Fig. 5.1 The Field Interpolator dialog box
- PMWIN Model: If you have already opened a model within PMWIN and started the
Field Interpolator from the Tools menu, this field contains the model file name. If
"Open a model first" is shown, you must click and select an PMWIN-model from
a standard Open File dialog box. A PMWIN-model file always has the extension .PM5.
- Input File: An input file contains the measurement data and can be prepared with the
Digitizer or other software. Click to select an existing input file. An input file must
be saved in ASCII and have the following format:
N first line of the file; N is the number of data points;
X , Y , Z second line of the file
1 1 1
X , Y , Z third line of the file
2 2 2
.
X , Y , Z (i+1)-th line of the file
i i i
.
.
X , Y , Z last line of the file
N N N