(This functionality is available with the Input / Output module)
This topic documents the operation codes that may be used when performing field surveys with Nikon equipment utilising the Nikon AP-700 survey data management, for later processing in the system.
Operation Codes for Nikon AP-700
Various field operations can be entered concatenated to the code. For added flexibility, the same field operations can be entered in a comment field.
Using the Nikon code field:
Each two character operation code is entered after the feature code, in the code field.
Each operation code MUST be preceded by a separator (this is the + character). More than one operation code can be entered against an observation.
Using the Nikon comment command:
The operation codes are entered after the observation.
Only ONE operation code can be entered per comment line.
Several operation codes can be entered for the same point by entering them in consecutive Nikon comments.
Following is a detailed definition of each operation code. Note that these operation codes apply to observations only. They can not be used for co-ordinates.
| Option | Op. Code Entry | Result |
| Description | DEddddd | The description entered (ddddd) is assigned to the current point. |
| Single Dimensioned Symbol | D1dim1 | The symbol associated with the feature code in the code table is dimensioned with the entered value (dim1). |
| Two Dimensional Symbol | D2dim1/dim2 or DTdim1/dim2 | The symbol associated with the feature code in the code table is dimensioned with the entered values (dim1 and dim2). Refer to the Code Table Point Attributes topic for an explanation of how dimensions 1 and 2 are applied to the symbol. |
| Temporary Feature Code | DCccccc | The symbol associated with the feature code entered (ccccc) is applied to the current point only. This operation must be followed by a D1 or D2 operation to take effect. |
| Arc by 3 points | AC | An arc is constructed using the previous point and the next two points as circumference points. |
| Circle by 3 points | C3 | A circle is constructed using the previous point and the next two points as circumference points. |
| Circle by centre and radius | CRxxxx | A circle is constructed using the previous point as centre and the radius entered (xxxx). |
| Circle by diameter points | CD | A circle is constructed using the current point and the next point as diameter points. |
| Circle by centre and radial point | CC | A circle is constructed using the current point as centre and the next point as a radial point. |
| Offset forward | OFxxxx | The last point is moved away from the instrument point by the distance entered (xxxx). |
| Offset back | OBxxxx | The last point is moved toward the instrument point by the distance entered (xxxx). |
| Offset left | OLxxxx | The last point is moved to the left (at right angles to the line from the instrument) by the distance entered (xxxx). |
| Offset right | ORxxxx | The last point is moved to the right (at right angles to the line from the instrument) by the distance entered (xxxx). |
| Offset up | OUxxxx | The last point is raised by the height difference entered (xxxx). |
| Offset down | ODxxxx | The last point is lowered by the height difference entered (xxxx). |
| Close string | SB | The current string is closed back to its beginning. |
| Start String from previous point | SR | A string just started is joined back to the previous point. |
| Start straight strings | SS | Strings starting from this point will be drawn as straight (not curved) until an SC comment is encountered. |
| Start Curved strings | SC | Strings starting from this point will be drawn as curved until an SS comment is encountered. |
| Remove elevation | RL | The elevation is removed from the current point. |
Note that the system does not perform the download of data from the Nikon equipment as this is carried out by Nikon software (NS-95 Database Utility). Hence, before the system can be used to process the downloaded Nikon file, it is necessary to open the file in a text editor and add the following record at the start.
Nikon AP-700
The following shows extracts from a Nikon raw data file with the required record added at the start, and also illustrating some of the operation codes.
Nikon AP-700
ST,1,PEGA,2,,1.625,123.3045
F1,2,,0.0000,90.0000,12:39:12
SS,3,1.500,116.946,162.1440,90.0000,12:40:50,CB01
SS,4,1.500,133.018,169.0951,90.0000,12:41:30,EF01
SS,5,1.500,104.623,152.4928,93.0702,12:41:48,EF02
SS,6,1.500,66.267,167.5305,93.0702,12:42:10,EF02+SC
SS,15,1.500,101.260,258.5448,93.0702,12:57:08,TREE00+DT14/1.2
SS,16,1.500,109.310,350.2356,92.1925,12:57:42,TREE00
CO,DT9/0.75
SS,21,1.400,29.717,142.4041,90.0000,16:07:54,STN00
CO,DEOLD PIN UNSTABLE CONDITION
SS,22,1.400,68.460,127.3526,90.0000,16:09:48,TREE00
CO,D215/2.5
MC,50,PSM50,5054.350,6958.160,90.123,PSM00
SS,50,1.500,68.595,127.3526,90.0000,16:15:18,PSM00
CO,DEMONUMENT IN RESERVE AREA