Pre Geolgy File Creation in ArcView

Pre Geology File Creation in EVS

NOTE: Most applications that use pregeology files are only available when running EVS-PRO or MVS.

The following section will show you how to build an EVS Pregeology file (.pgf) with the extension. To see the format for a PGF file or a tutorial on how to use the Pre-Geology Module click here: $image\shortcut.jpg$ Pre Geology File Format

From the EVS pull-down choose Select Tables to get the following:

$image\get_dbf.jpg$

Choose the following settings and hit OK (note, you must choose the Input Table before you can set the field to field links (relationships):

$image\link_fields_pgf.jpg$

Next: from the pull down menu choose "Create PGF File":

$image\blank_pgf.jpg$

At this point, you have two ways of specifying a pre-geology file. You can load an existing file that will be used when you launch an application (in which case you could have skipped the "Select Tables" step), or you can specify the fields of your database to be used to create a pre-geology file as below:

$image\populate_pgf.jpg$

In this example the material property field is named Material (but in your database it may be something like soil type, grain size, etc.). When you hit OK it will give you a file browser and allow you to name and specify the folder for your pre-geology file. Accept or change the file name and location and hit OK.

Note: the default naming is evs#.pgf where # will start at "1" and count up as you write new files to the same folder.

$image\pgf_file.jpg$

The example file we’ve created above is a very small simplistic pre-geology file. Let’s load an existing pre-geology file to create a more interesting example for the workbook.

$image\pgf_file_panel.jpg$

At this point you can select "Launch Application" from the EVS pull down menu---or continue to create other data files (.CSV, .GMF, or .PGF). When you select "Launch Application"

it will only show you those applications that are available to you based on the data files that you have specified or created. (Remember that this entire product consists of an ArcView and ArcGIS extension that is compatible with all versions of EVS and MVS, but provides enhanced functionality for the higher versions.)

$image\app_launch_pgf.jpg$

You should see the following in the Viewer window after selecting Az El and clicking the 210 button in the bottom right hand corner of the Az El panel and change scale factor to 0.8:

$image\app_view_pgf.jpg$

At this point, you could use make_geo_hierarchy to construct a hierarchical model and save the resulting .GEO or .GMF file.