The following is a description of and the documentation 
for the programs contained in survey.bin


   proj - Open, Create or Delete a project file.
   pont - Create a point (Northing and Easting)
  psort - Sort the data directory.
   plst - List points by project prefix, numeric suffix, both or all points.
   pedt - Edit the Northing and/or Easting of a saved point.
   pdel - Delete a saved point.
   brds - Compute bearing and distance between two saved points.
   trvs - Compute coordinates of an open or closed traverse, closure
          and adjust.  If the closed traverse option is chosen, the program
          computes the area and graphs the adjusted traverse.
   area - Computes area enclosed by saved coordinates in ft^2 and
          acres and graphs the figure.
  sshot - Computes and saves the coordinate of a point at a known
          distance and angle from two saved points.
   isct - Computes and saves the coordinate of the point(s) at the
          intersection of two elements (either a line, circle or
          distance). 
  defla - Computes deflection angles and chords of a circular curve. 
az/->br - Converts azimuth to bearing.
br/->az - Converts bearing to azimuth.
 r/->dc - Converts radius to degree of curvature.
 dc/->r - Converts degree of curvature to radius.
   angl - Computes angle to the right, foresight distance and backsight
          distance from three saved points.
 aaaaaa - Angle to the right, saved from the angl program.
 dddddd - Foresight distance, saved from the angl program.




Instructions:

The programs are saved in binary format.  You must set your HP48 to receive
in binary mode.  Use the RECN command to receive the survey.bin programs
under the name 'survey' (lowercase letters important!)

Executing BYTES on 'survey' gives #16868d  21176.5 bytes

Before running the programs make sure that you set flags  
 -3 (numeric evaluation) -55 (last args not saved) 
 -60 (alpha lock with one press of the alpha key)

To execute a program press the menu button below the screen label. 
All programs, except Dc/->R and R/->Dc, prompt for data.  Dc/->R and R/->Dc 
take arguments from the stack (Dc=degree of curvature R=radius).

All stored point prefixes must be in capital letters (all program
variables are in lowercase letters).

If you enter a point name for a point that is not saved, the program
will ask if you want to create the point and then continue the program. 
You do not have to leave the program to enter points.

Press ATTN twice to exit the pont and pedt programs (once to remove prefix,
twice to terminate the program).

Use the up or down arrow keys to move between the Northing and Easting
data fields in the pont and pedt programs.

Press left arrow key to see the graphed figure created in the area and
trav (closed traverse option) programs.

Letters in (_) are to be entered at the prompt to execute the option.

When prompted for a bearing quadrant note that the choices given are 
the four numbers at the corners of the numeric keypad (i.e., 9=NE, 7=NW).

To get an ascii ordered list of points you must run the psort program,
otherwise points are listed in the order they appear in the data directory.

DISCLAIMER : I have not worked out all of the bugs in the programs.  
             I can't guarantee the programs give correct answers. 
             
I have used most of the programs at work and at school and they have worked 
well for me.

If you have ANY questions, suggestions or comments about my programs please 
e-mail me at
___________________________________________________________________________
 Dan Coyle                                 Georgia Institute of Technology
 Civil Eng. co-op                           Federal Highway Administration 
 
 gt7530a@prism.gatech.edu                       January-March, July-August
 dcoyle@gmuvax.gmu.edu                      April-June, September-December
___________________________________________________________________________

or send mail to   Dan Coyle
                  P.O. Box 37530
                  Georgia Tech Station
                  Atlanta, GA 30332