Vulcan : Survey : Appendix A : File Information : Vulcan Field Survey File

File Information

Vulcan Field Survey File

**** Vulcan Format File - Ver:1.2 (Feb 09)
BEGH
JOB  SET AZ
DATE 17/10/08
SVYR GARY MAASS 
INST TCRP120x+
SERL 1
ANG  DEGS
SRCE Leica
ONBG TRUE
VERS 1.0
ENDH
**** Start of Data
*1234 12 1234567890123456 12 1234567890123456 12 1234567890123456 12 1234567890123456 12 12345678 12 1234567890123456790
**** Control Points
STN  ID              100 E          1000.000 N          2000.000 RL           10.000             CO STN                 
**** TPS Setup - Set Azimuth
STN  ID              100 E          1000.000 N          2000.000 RL           10.000             CO STN
OCC  ID              100 HI            1.650 SC     1.0000000000 TY      Set Azimuth
SS   ID              101 HA         189.4740 VA          89.5132 SD            6.207 TH    0.000 CO 
SS   ID             2000 HA          95.4739 VA          81.0122 SD            2.688 TH    0.000 CO 
SS   ID             2001 HA         123.0551 VA          81.3857 SD            2.895 TH    0.000 CO 
SS   ID             2002 HA         165.0241 VA          86.2228 SD            6.153 TH    0.000 CO 
SS   ID             2003 HA         220.5753 VA          85.1051 SD            9.913 TH    0.000 CO 
SS   ID             2004 HA         232.3202 VA          85.3758 SD            7.510 TH    0.000 CO 
SS   ID             2005 HA         307.3025 VA          83.4655 SD            5.659 TH    0.000 CO 
**** -------------------------------------------------------------------------------------------------------------
**** CHECK SHOT          STN             100 TIME          13:22
****                     BS              101 TH            0.000 Prism Leica Circ Prism
****          Calculated HA         189.4740 HD            6.207 RL            1.665
****            Measured HA         189.4739 HD            6.207 RL            1.665
****         Differences HA           0.0001 HD            0.000 RL           -0.000
**** -------------------------------------------------------------------------------------------------------------
**** TPS Setup - Known Backsight
STN  ID              101 E           998.944 N          1993.884 RL           11.665             CO  
STN  ID              100 E          1000.000 N          2000.000 RL           10.000             CO STN             
OCC  ID              101 HI            0.000 SC     1.0000000000 TY  Known Backsight
BS   ID              100 HA           9.4740 VA          90.0633 SD            6.206 TH    1.650 CO STN
SS   ID             3000 HA          32.1747 VA          86.3828 SD            6.931 TH    0.000 CO 
SS   ID             3001 HA          37.1215 VA          85.5538 SD            5.731 TH    0.000 CO 
SS   ID             3002 HA          85.5656 VA          81.5805 SD            2.673 TH    0.000 CO 
SS   ID             3003 HA         256.0533 VA          81.3913 SD            5.642 TH    0.000 CO 
SS   ID             3004 HA         287.4210 VA          83.4844 SD            5.160 TH    0.000 CO 
SS   ID             3005 HA         340.2125 VA          86.3634 SD           10.152 TH    0.000 CO 
**** -------------------------------------------------------------------------------------------------------------
**** CHECK SHOT          STN             101 TIME          13:30
****                     BS              100 TH            1.650 Prism Leica Circ Prism
****          Calculated HA           9.4740 HD            6.207 RL           -1.665
****            Measured HA           9.4740 HD            6.207 RL           -1.662
****         Differences HA           0.0001 HD           -0.000 RL           -0.003
**** -------------------------------------------------------------------------------------------------------------
**** TPS Setup - Resection
**** ID             2000 HA           74.193 VA           77.183 SD            1.853 TH    0.000 CO 
**** ID             2001 HA          118.213 VA           76.306 SD            1.751 TH    0.000 CO 
**** ID             2003 HA          227.444 VA           85.163 SD           10.001 TH    0.000 CO 
**** ID             2005 HA          307.556 VA           84.561 SD            6.828 TH    0.000 CO 
**** ID             2000 dHz    0.00068 dE    -0.0005 dN    -0.0002 dH     0.0015 Used 3D
**** ID             2001 dHz   -0.00549 dE     0.0002 dN     0.0004 dH     0.0014 Used 3D
**** ID             2003 dHz   -0.00038 dE    -0.0001 dN    -0.0004 dH    -0.0021 Used 3D
**** ID             2005 dHz    0.00110 dE     0.0004 dN     0.0001 dH    -0.0008 Used 3D
STN  ID              111 E          1000.902 N          1999.244 RL           10.161             CO 
OCC  ID              111 HI            1.500 SC                  TY        Resection
SS   ID             4000 HA          74.1932 VA          77.1825 SD            1.853 TH    0.000 CO 
SS   ID             4001 HA         118.2131 VA          76.3103 SD            1.751 TH    0.000 CO 
SS   ID             4002 HA         172.2941 VA          85.5208 SD            5.233 TH    0.000 CO 
SS   ID             4003 HA         227.4446 VA          85.1625 SD           10.001 TH    0.000 CO 
SS   ID             4004 HA         240.5714 VA          85.5402 SD            7.851 TH    0.000 CO 
SS   ID             4005 HA         307.5602 VA          84.5601 SD            6.829 TH    0.000 CO

Values in Vulcan Field Survey files (.vff) are column formatted and begin with a 4 character record type followed by a space. Header records can either contain no value or a single value, while data records contain a series of tag and value pairs (depending on the record type). A comment record will have an asterisk (*) in the first column.

Header records
Record	Description	Note
BEGH	Begin header. Must be the first of the header records.	No value.
ENDH	End header. Must be the last header record.	No value.
JOB	Job name.
DATE	Date.
SVYR	Surveyor's name.
INST	Instrument name.
SERL	Instrument serial number.
ANG	Type of angle being recorded.	Either DEGS or GONS.
VERS	File version.
SRCE	Advisory record identifying what instrument type wrote the file.
ONBG	Set to TRUE if horizontal angles are adjusted to be bearings.

Data records

Record

Description

STN

Contains the coordinates of the station used in the pickup, For example, instrument, backsight, resected etc.

ID	Alpha	16	Station Name
E	Numeric	16.3	Easting
N	Numeric	16.3	Northing
RL	Numeric	16.3	Level

OCC

Defines the location of the instrument.

ID	Alpha	16	Station Name
IH	Numeric	16.3	Instrument Height
SC	Numeric	8.3	Line of scale factor for UTM reductions
TY	Numeric	8.3	Type of setup. The setup type is one of "Set Azimuth", "Known Backsight" or "Resection".

If the scale and setup type entries are missing, then the scale will be set to '1.0' and the "Known Backsight" setup type will be used.

Backsight record. This record should follow the OCC record, otherwise the survey is assumed on-bearing.

ID	Alpha	16	Station Name
HA	Angle	ddd.mmm.sss	Horizontal Angle
VA	Angle	ddd.mmm.sss	Vertical Angle
SD	Numeric	16.3	Slope Distance	TH	Numeric	16.3	Target Height

Single shot record (point of interest).

ID	Alpha	16	Station Name
HA	Angle	ddd.mmm.sss	Horizontal Angle
VA	Angle	ddd.mmm.sss	Vertical Angle
SD	Numeric	16.3	Slope Distance
TH	Numeric	16.3	Target Height
CODE	Alpha	16	Feature Code

Multiple shot record. This is a special record type that defines how to interpret the SS records that follow.

Numeric	16	Number of points
Alpha	16	Order of faces
Numeric	16	Number of rounds

The order of faces can be;

B'F' - back and foresight in face only
B'F'F"B" - back and foresight face 1, then fore/backsight face 2
B'F'B"F" - back and foresight face 1, then back/foresight face 2

This record is followed by a series of single shot (SS) records. The IDs from the first set of face 1 shots will define the actual point names.

CRD

Contains the coordinates of a point.

ID	Alpha	16	Point Name
E	Numeric	16.3	Easting
N	Numeric	16.3	Northing
RL	Numeric	16.3	Level
CODE	Alpha	16	Feature Code

OFF

Contains the offsets for the next SS record.

FDBD	Numeric	16.4	Fwd/Back (+/-)
RTLT	Numeric	16.4	Right/Left (+/-)
UPDN	Numeric	16.4	Up/Down (+/-)