D-36 
'k 
5) Choose “DO- Dissolved Oxygen” as the parameter. 
6) Click the DATA IMPORT button to display the DATA IMPORT screen. 
7) Click Get File Name button and select the “C:\Vol3D\BD0970701.D3D” data 
file. The file name, start and end dates, number of observations, file date, parameter, 
code, and title should appear in the Data Import screen. If not, you selected an incor¬ 
rect file. 
8) Click the INTERPOLATE button to display the INTERPOLATE screen. The 
input file should read “C:\Vol3D\BD0970701.D3D”, the output file should read 
“C:\Vol3D\BD0970701.esf\ Bathy file should read “cbay8.bth”, and metadata file 
should read “C:\Vol3D\BD0970701.met”. 
9) Click the “Run Interpolation” button to create the standard *.est file or click the 
“Also Create TXT File” to create a “filename”.txt file that can be imported into 
Arc/Info or ArcView as a table. The text Arc View file will be approximately 2.3 mb 
in size. 
10) If you created an interpolated .est file, you can view the results by clicking the 
GRAPHICS button to display the GRAPHICS screen. If you created a .txt file to 
load into an ArcView table, you can quit the Interpolator program and continue 
working with the output file in ArcView. 
11) At the GRAPHICS screen, the Interpolated file should read 
“C:\Vol3DVBD0970701.est”. Click the Interpolated File button to load titles and 
dates for the graphic. 
12) The Bathymetry file should read “cbay8.bth”, the Logo File 1 should read 
“Acbpotiny.bmp”, the Logo File 3 should read “Aaro.bmp”, the Categories File 
should read “.\DO.mg”. Click the Categories File button to load the categories for 
the graphic. The Boundary File should read “Ashore_18.bnd”, the output Graphics 
File name should read “CAVol3D\BDb970701.bmp”. The titles and legends were 
loaded by pushing the Interpolated File and Categories File buttons. The background 
color of the boundary file is set by clicking the small grey box to the right of the 
Boundary File name. Click “Plot Points” ON if you want to display the location of 
the monitoring stations. Click “Plot Data Regions” ON if you wish to see the Data 
Region polygons. Choose “Minimum” if you wish to display the minimum color 
value (where minimum is the worst case, such as dissolved oxygen), or choose 
“Maximum” if you wish to display the maximum color value (where maximum is 
the worst case, such as temperature), or choose the “Top/West” edge or 
“Bottom/Easf ’ edge to display the desired side. 
Titles, categories, colors, and legends can be modified on this screen and will be 
reflected in the resulting drawing. Clicking the “DRAW” button will draw the image 
in a graphics window. The graphics window can be saved to a file or printed. This 
version of the Interpolator does not allow graphical editing. The saved “file¬ 
name”.bmp file can be edited in a commercial graphics editing package, such as 
Lview Pro or Corel Draw. The .bmp file can be converted to gif or jpeg format for 
publication on the web. 
appendix d 
User Guide and Documentation for the Chesapeake Bay Interpolator 
