Vr Mapping
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ON-LINE REFERENCE DOCUMENTATION CARDINAL SYSTEMS, LLC 386-439-2525 www.cardinalsystems.net |
Exterior Orientation File Formats
Following is an overview and the requirements of the methods for importing orientations from aerial triangulation solutions. There are three ways to orient a model in the VrTwo Orientation Program (Vr2Ori). In all three methods the inner orientations are performed manually in Vr2Ori or automatically in Vr Image Utility. Care must be taken when importing orientations that parameters such as image (film) strip direction is the same the the VrTwo Orientation photo definitions that were used in aerial triangulation. Following is an overview of the three methods:
All three methods of orientations produce residual reports for each step of the orientation process. In some cases residuals will be shown for inner, relative and absolute orientations. These residuals must be checked after each step. High residuals indicate a problem with a parameter, such as image strip location or a problem with the input format. You should stop and correct any problems that cause high residuals before continuing.
Choosing an import method of Measurements or Exterior depends on the data available and personal preference. Following are some of the pros and cons of each method.
Following are the supported file formats for importing orientations using measurements from aerial triangulation:
JFK
ISAT
PATB
ISBBA
VrAt
(ASOP file) The JFK format is one of the few whose
coordinates may not be presented in microns or millimeters. In many cases they are in a machine
coordinate system. For this reason the
first four or eight points for each photograph are the fiducial measurements. When importing JFK measurements the inner
orientation is recomputed so the coordinates in the file may be converted to
millimeters. The order that the fiducial
points were read in aerial triangulation must be entered and it is suggested
that the USGS point number sequence be used when measuring these points in
aerial triangulation.
Example:
1 1 1 394005
394013
1 1 2
606000 606008
1 1 3
394000 606011
1 1 4
606004 394013
1 132761
435628 544371
1 132762
415034 522530
1 132763
456432 498834
1 1 1011 500711
602651
1 1 1012 500646
559562
1 1 1013 500501
553826
1 1 1021 586181
544371
1 1 1022 588259
522530
1 1 1023 584832
498834
1 1 374
564371 544390
1 1 375
584965 540962
1 1 801
562101 496860
1 1 802
556680 553263
Description:
Strip
number: 0 - 4 4 chars
Photo
number: 4 - 6 3
chars
Point
name: 7 - 11 5 chars
X: 12 - 19 8 chars
Y:
20 - 27 8 chars
The coordinates are normally represented in millimeters and there a two pair of measurements for each point. It is possible that the strip number and the photo number are encoded in the field after the photo_measurements keyword or the photo number only may be stored in this location. In any case the Vr Mapping software will prompt the user for the strip number location when using this format when needed.
Example:
begin photo_measurements
33304 strip_id
333 version 2.0
102 -88.223459 -54.48708 -88.21914 -54.485536 1 0
202 -88.22346 -54.486643 -88.219141 -54.485099 1 0
130 -90.547583 88.019566 -90.542839 88.016663 1 0
103 47.460939 -28.304471 47.46056 -28.30407 1 0
203 47.459191 -28.306224 47.458812 -28.305823 1 0
33030
-93.935157 -25.859113 -93.930286 -25.858331 1 0
33031 -100.47029 69.43473 -100.46501 69.43212 1
0
33033
-99.97721 69.843071 -99.971954 69.840451 1 0
33032
-99.925894 -77.858603 -99.921382 -77.857109 1 0
33034
-104.82956 -80.321189 -104.8249 -80.319784 1 0
33040
-0.55964746 -8.5576488 -0.55961614 -8.5573221 1
0
33041
-10.922536 90.767633 -10.92116 90.765257 1 0
33043
-6.903269 96.243403 -6.9018842 96.241167 1 0
33042 2.7350342 -69.753146 2.735623 -69.751729 1 0
33044 4.2095274 -69.864267 4.2100893 -69.86288 1 0
33050
71.912829 9.8773264 71.913098 9.8771497 1 0
33051
81.140142 83.422012 81.142934 83.422727 1 0
33052
81.649493 -76.860884 81.652592 -76.862506 1 0
6001 53.335374 -22.283994 53.335054 -22.283749 1 0
6002 60.035923 -19.217072 60.035789 -19.216948 1 0
6003 88.107365 -18.523815 88.109033 -18.524119 1 0
6004 93.966025 -18.909729 93.968263 -18.910138 1 0
6005 95.200412 -13.861172 95.202697 -13.861531 1 0
6006 83.691161 -13.863357 83.69238 -13.863561 1 0
6007 68.450912 -14.366451 68.451108 -14.366464 1 0
6008 61.215586 -17.45878 61.215476 -17.458685 1 0
6009 53.595521 -14.765279 53.595114 -14.765122 1 0
6010 71.401473 -11.362814 71.401802 -11.362872 1 0
6011 86.704885 -4.9812579 86.706267 -4.9814476 1 0
6012 71.737042 5.1825883 71.737305 5.1824424 1 0
6013 75.166358 -25.993112 75.167144 -25.993234 1 0
6014 93.554794 -30.308202 93.557233 -30.308791 1 0
6015 69.879982 -35.217456 69.880641 -35.217514 1 0
end photo_measurements
Description:
Field 1 -
Point name
Field 2 X coordinate
Field 3 Y coordinate
Field 4 X coordinate
Field 5 Y coordinate
(.ptb) This is the most common file format for point measurements and most all aerial triangulation programs can output this format. The coordinates in a PATB file may be in micros or millimeters. The easiest way to determine the units is to look at the focal length in the second field on each photo name record. A focal length similar to 153352.0 will indicate microns while a focal length similar to 153.352 in indicate millimeters. The coordinates in the example below are in microns.
Example:
01
153352.000 0
10010 -6620.441 2659.528 0
10012 -2315.185 -87815.725 0
10011 2189.424 90393.601 0
10022 97584.696 -89972.479
0
10020 95414.200 28553.299 0
HV23A 92335.855 80252.801 0
-99
02
153352.000 0
10010 -101528.830 6362.794 0
10012 -97161.205 -83840.714 0
10011 -92053.394 94683.069 0
10022 2627.953 -85568.158 0
10030 95457.685 -34333.063 0
10031 94577.448 89272.723 0
10032 82389.838 -100853.220 0
10020 1994.823 32149.234 0
HV23A -1128.292 84051.952 0
-99
NOTE:
There is no strip designation in the PATB file
The 0 after the focal length on the photo
record can be a 1
The 4th field on the coordinate is
optional
Photo names may be numbers or names
Point
names may be numbers or names
Each
photo is terminated with a point name of -99
(.icr) This is another common
file format for point measurements and most all aerial triangulation programs
can output this format. The coordinates
in a
Example:
2 13 0 0 152.673 .000 .000
2 13 33 0
-70.745 72.775 .000
2 13 108 0 11.430 40.554 .000
2 13 176 0
-45.256 -100.547 .000
2 13 1051 0
-67.553 -96.527 .000
2 13 1061 0 15.520
-105.421 .000
2 13 2121 0
-71.696 75.076 .000
2 13 2122 0
-68.741 -7.373 .000
2 13 2123 0
-67.538 -96.541 .000
2 13 2131 0 11.149 98.604 .000
2 13 2132 0 -2.860 27.499 .000
2 13 2133 0 15.510
-105.424 .000
2 13 4082 0
-70.560 -19.258 .000
2 12 0 0 152.673 .000 .000
2 12 21 0
-69.577 -80.242 .000
2 12 33 0 5.606 78.743 .000
2 12 108 0 88.496 46.671 .000
2 12 176 0 33.294
-93.886 .000
2 12 1041 0
-63.319 -73.209 .000
2 12 1051 0 11.074
-90.166 .000
2 12 1061 0 93.484
-98.102 .000
2 12 2111 0
-74.637 83.657 .000
2 12 2112 0
-73.999 -3.280 .000
2 12 2121 0 4.586 81.071 .000
2 12 2122 0 8.614 -1.932 .000
2 12 2123 0 11.089
-90.180 .000
2 12 2131 0 87.788
105.447 .000
2 12 2132 0 74.303 33.448 .000
2 12 2133 0 93.474
-98.105 .000
2 12 4082 0 7.016
-13.799 .000
Definition:
Field 1 Strip number
Field 2 Photo number
Field 3 Point Number (0 Means the focal length is
in the X field)
Field 4 Not used
Field 5 X coordinate
Field 6 Y coordinate
Field 7 Not used
This format is commonly used by SoftPlotter.
Example:
**
ISBBA image coordinate data ***
***
***
file name D:/12762-1grant//block/12762-1.ISBBA/IMAGE.DAT
***
***
data source SoftPlotter 4.0
***
1
1-1c
1012 3.075 -23.137
58 -24.894 -56.993
1021 -95.234 -46.531
1011 -0.870 -73.799
53 -105.578 -39.682
59 -16.912 -4.766
1022 -96.304 5.440
51 -77.204 37.841
57 -72.808 -40.258
1013 0.552 38.587
1023 -94.155 51.627
-99
1-2c
58 67.540 -53.370
1022 -5.451
10.793
1023 -3.503 58.069
57 18.059 -35.766
1021 -5.013 -41.768
52 -34.854 -7.483
1013 95.717 44.240
1012 97.223 -19.365
1032 -91.183 -1.213
53 -15.630
-34.736
1011 92.172 -70.744
51 13.978 43.814
1031 -83.426 -45.247
50 -34.060 40.378
1033 -83.017 54.921
59 76.639 -0.355
-99
1-3c
1023 93.011 62.148
1022 91.285 13.377
52 59.645 -5.671
1021 91.032 -40.537
53 79.846 -33.432
51 111.354 47.565
1033 8.644 58.189
1032 0.153 0.268
1031 9.797 -44.792
50 60.523 43.597
-99
-999
Definition
Field 1 Photo name or point name (-99 = End of
photo -999 = End of job)
Field 2 X coordinate
Field 3 Y coordinate
This format is commonly used by SOCET SET
1_3
2_2_11 19.5207 -64.5603
0 N
1_3
2_3_13 34.4873 -119.0402
0 N
1_3
2_1_8 10.6301 -37.6484
0 M
1_3
2_1_14 -20.0428 -46.0351
0 M
1_3
2_1_5 -94.9184 -13.1161
0 N
1_3
2_1_17 -105.2247 -112.9695
0 N
1_4
1_3-3 -71.7986 -88.6343
0 M
1_4
1_4-3 2.6107 -86.6616
0 M
1_4
1_5-3 87.4736 -87.6902
0 M
1_4
4326 -7.5582 27.0686
0 M
1_4
4327 24.3368 -63.3050
0 M
1_4
4329 -51.9367 -56.5482
0 M
1_4
4335 -104.6063 -69.5853
0 M
1_4
1_2_4 -105.4197 117.1721
0 N
1_4
1_2_5 -67.8985 100.3433
0 M
1_4
1_2_6 -74.6294 107.7340
0 M
Field Descriptions:
1 - Photo name
2 - Point name
3 - X coordinate
4 - Y coordinate
5 - ??
6 - Measure flag M=Measured N=Not Measured
D=Disregard
(.prj) This file is written from the MATCH-AT aerial triangulation program. Typically this single file contains information to import Interior Orientations, orientations from measurements and orientations from exterior orientations. Following is an example of the format for the measurement area of the project file. Each photograph in the project file contains a $PHOTO record which indicates the start of photograph parameters. The measurement section of each $PHOTO starts with the $PHOTO POINTS : record.
NOTE: The MATCH-AT project also contains the measurements for interior orientations which can be read by the VrTwo Orientation program.
$PHOTO_POINTS :
101 7.26132 70.06186 1.00 1 { * }
104 1.35889 -63.66409 1.00 1 { * }
9001
-0.26552 -80.54105 1.00 2 { * }
9002 3.64609 -0.74474 1.00 2 { * }
9003
-1.46410 81.74808 1.00 2 { * }
9004
87.16268 81.69672 1.00 2 { * }
9005
87.91409 -3.76749 1.00 2 { * }
9006
89.27521 -81.72300 1.00 2 { * }
$END_POINTS
Field
Descriptions:
1
Point name
2
X photo coordinate
3
Y photo coordinate
(.vat) This file may be written from the Cardinal Systems Vr Air Trig program (VrAt). Coordinate units may be in microns or millimeters and the point names may be output as names or numbers.
Example:
# VrTwo Air Trig Measurement Export File
# FileName:
E:\Jobs\ManAtControl\ManAt.vat
# Units :
Millimeters
# Date :
30-Jul-2004 20:00:54
#
Pho 2013 152.6730
Pnt 02131 11.1487 98.6042
Pnt 02132 -2.8599 27.4994
Pnt 02133 15.5102
-105.4237
Pnt 02121 -71.6956 75.0761
Pnt 02122
-68.7412 -7.3727
Pnt 02123 -67.5377 -96.5406
Pnt 33 -70.7452 72.7753
Pnt 4082 -70.5599 -19.2580
Pnt 108 11.4295 40.5537
Pnt 01061 15.5199
-105.4212
Pnt 01051 -67.5527
-96.5268
Pnt 176 -45.2563
-100.5470
End
Pho 2012 152.6730
Pnt 02121 4.5857 81.0707
Pnt 02122 8.6144 -1.9320
Pnt 02123 11.0894 -90.1799
Pnt 02111 -74.6367 83.6569
Pnt 02112 -73.9989 -3.2800
Pnt 02131 87.7877 105.4474
Pnt 02132 74.3027 33.4480
Pnt 02133 93.4742 -98.1047
Pnt 33 5.6058 78.7429
Pnt 4082 7.0155
-13.7986
Pnt 108 88.4956 46.6711
Pnt 01041 -63.3187 -73.2092
Pnt 01051 11.0745 -90.1661
Pnt 21 -69.5766 -80.2417
Pnt 01061 93.4839 -98.1022
Pnt 176
33.2945 -93.8862
End
Description:
Field
1 Keyword
Pho Photo
name record
Pnt Point
record
End End of photo record
Field
2 Photo number/name or Point number/name
Field
3 X coordinate or focal length
Filed
4 Y coordinate
Following are the supported file formats for importing orientations using exterior orientations from aerial triangulation:
Applanix
PATB
JFK
AeroSys
ISAT EO file
BINGO
ISAT photo file
(.opm) Each photo consists of two records.
Example:
1
3 1 1847839.844
727097.439 5176.269 .152673E+03
1
3 1 -.2471 -.9274
-.9588
2
10 1 1847877.219
731502.554 5155.066 .152673E+03
2
10 1 1.3715 -.5810
-5.0702
1
4 1 1850122.336
726831.159 5151.653 .152673E+03
1
4 1 .1069 .3669
-2.8769
2
11 1 1850502.820
731357.482 5167.058 .152673E+03
2
11 1 .7268 -.1776
-5.9014
1
5 1 1852361.929
726573.614 5114.480 .152673E+03
1
5 1 .3401 .6811
-4.0090
2
12 1 1852741.687
731250.353 5158.552 .152673E+03
2 12
1 .1342 .0886
-5.6188
1
6 1 1854698.052
726385.497 5100.644 .152673E+03
1
6 1 1.1706 .0001
-3.5862
2
13 1 1854955.754
731158.172 5148.728 .152673E+03
2
13 1
1.1115 .1982 -5.1572
Description:
Record 1:
StripNumber PhotoNumber CameraNumber X Y
Z FocalLength
Record 2:
StripNumber PhotoNumber CameraNumber
Omega Phi Kappa
Focal Length
Angular units are in gons (400 gons in a circle).
(.txt) This data is normally from the Applanix POS AV which is specifically designed for direct georeferencing of airborne sensor data.
Example:
V04-0002
1-4 44 316874.922102 1362855.429 384127.781 3709.728 0.94063
-0.23136 143.22672 38.72129092
-76.82291895
1-3 45 316882.731476 1364562.264 382832.892 3750.831 0.23227
-0.38762 142.48098 38.71772614
-76.81694558
1-2 46 316890.538878 1366292.052 381515.545 3718.110 1.16006
0.18896 142.38096 38.71409925
-76.81089252
1-1
47 316898.346788 1368056.631 380175.348 3726.714 0.52973
0.13071 143.47279 38.71040911
-76.80471832
Description:
Id# Event
Time Easting Northing
OrthometricHeight Omega
Phi Kappa Lat
Long
Position in US Survey Feet
Angular units are in Degrees
Latitude and longitude are
in degrees
There are 11 fields
(.ptb) This is the most common
file format for exterior orientations.
One advantage of this format is the x, y and z rotations are expressed
as a 2x3 matrix. Its up to the
importing application to apply these as Omega, Phi and Kappa. In some applications these need to be
computed differently. There are two
forms of this rotation matrix which are
Example:
624 1 536576.24017 351204.09808 1825.68406
0.999936589007 0.002767531961 -0.010915985152
-0.002541494792 0.999783188939
0.020666782968
0.010970814428 -0.020637729547
0.999726825363
Description:
Record 1:
PhotoName Number
X Y Z
Record 2:
Matrix00
Matrix01 Matrix02 Matrix10
Matrix11
Record 3:
Matrix12
Matrix20 Matrix21 Matrix22
NOTE: On record 1 the PhotoName
field may include the strip number and the photo number.
(ASOP) Each photograph consists of two records.
Example:
7 17
-153.672
.0110250 .0019448 .5957646
674222.6243 157773.6886 3567.8489
7 18
-153.672
.0043957 .0055597 .6030570
676023.9183 158952.3540 3560.7434
7 19
-153.672
.0161876 .0102126 .6075526
677847.2048 160154.7148 3553.8859
7 20
-153.672
.0012838 .0043296
.5857654 679688.1069
161333.1414 3545.1678
7 21
-153.672
.0115458 .0102823 .5996792
681493.1207 162501.6403 3537.0296
-9999-9999 .000
.0000000 .0000000 .0000000 .0000 .0000 .0000
Description:
Record
1:
Strip#
Photo# FocalLength
Record
2:
Omega Phi Kappa
X Y Z
Omega, Phi and Kappa are in radians.
(.orn) A nice, straightforward exterior orientation format from the AeroSys aerial triangulation program. Each photograph is represented by a single record and consists of seven fields.
Example:
7_7
-2.6597385 1.6103960 357.7080606 2125691.498 318349.957 12772.757
7_8
-3.0342212 1.1245021 0.5449938 2133020.447 318454.700 12695.503
7_9
-4.8047193 0.8845449 358.2169991 2140224.146 318583.495 12644.638
Description:
PhotoName Omega
Phi Kappa X
Y Z
Omega, Phi and Kappa are in degrees.
(.txt) A nice, straightforward exterior orientation format from the Zi ISAT aerial triangulation program. Each photograph is represented by a single record and consists of seven or eight fields. There are two formats supported for the representation of the strip number and the photo number. The first format allows the strip number and the photo number to be embedded into the first field. The second format allows the strip number and photo number to be as separate fields. The import software will prompt the user for the format used. The user may need to view the ISAT EO file to determine the format.
Examples:
Format 1 The strip number and photo number are embedded into the first field. The import software will prompt the user for the photo name format to so the strip and photo numbers may be parsed from the first field.
031_0001
5667886.688208
3579941.997080 7159.144314 0.285997
0.728775 92.988155
031_0002
5667844.561584
3581335.968222 7163.901070 0.298336
0.408295 93.116062
031_0003
5667799.305835
3582724.728548 7161.813480 0.238260
0.485285 93.070630
031_0004
5667756.411109 3584089.983826 7160.137499 0.171293 0.479130 93.034557
031_0005
5667700.712945
3585487.054886 7160.211317 0.168707
0.839874 93.051858
031_0006
5667640.201801
3586888.124670 7163.379174 0.122775
0.590436 93.081764
031_0007
5667578.982333
3588241.886039 7157.674675 0.291043
0.615208 93.047606
Format 2 The strip number and photo number are the first two fields and are separate fields.
1
01 633705.956334 1017713.325913 3541.001341 -0.702746 -0.000747 100.680568
1
02 633496.207135
1018781.760240 3538.289389 -0.894707 0.495368 100.684087
1
03 633304.373459
1019850.278542 3532.097127 -1.088651 0.897845 99.434971
1
04 633117.825673
1020921.151394 3523.881157 -1.231190 0.642604 99.145017
1
05 632925.579523
1021991.113322 3524.220192 -1.255064 0.768036 99.022190
2
01 633468.547313
1020918.384979 3549.197971 -1.224473 -0.268553 106.302039
2
02 633165.820739
1021965.957745 3539.301372 -1.149814 -0.751714 106.807604
2
03 632851.492305
1023006.306754 3521.964589 -1.193166
-0.430256 106.634191
2
04 632527.832675
1024042.597472 3515.093004 -1.156498 -0.188606 105.367713
2
05 632210.803841
1025078.541290 3516.157405 -1.076264 0.333229 106.172133
2
06 631900.424338
1026119.587659 3519.847944 -0.929761 0.595129 105.864054
2
07 631588.675331
1027162.319801 3519.625081 -0.924996 0.529891 105.556226
2
08 631275.629956
1028201.401227 3521.137015 -0.770315 0.640636 105.468230
2
09 630968.182960
1029245.315282 3516.320396 -0.853725 0.934265 105.387964
2
10 630675.032675
1030294.244445 3529.544602 -0.767745 1.037869 105.198169
2 11
630368.161149 1031336.989654
3542.560870 -0.527731 0.712043 105.122843
Description:
Strip#
Photo# X Y
Z Omega Phi
Kappa
Omega, Phi and Kappa are in Degrees
(.dat) A nice, straightforward exterior orientation format. The strip and photo number are encoded into the second field on each record.
*
<___Photo_No.__><___Easting__><__Northing__><__Height_><___Phi__><__Omega_><__Kappa_><___Camera_No._>
ORIA 1_1 852893.468 684552.371
7067.864 0.3494 1.0546 -198.6821 1
ORIA 1_2 850824.533 684530.943
7071.312 0.7187 -1.4112
199.2191 1
ORIA 1_3 848733.011 684566.042
7074.635 0.1749 0.2428
199.4276 1
ORIA 1_4 846485.544 684602.141
7080.482 0.3974 -0.3179
198.8533 1
ORIA 1_5 844278.048 684627.307
7085.428 0.2825 0.6482 -199.6670 1
ORIA 1_6 841901.398 684609.550
7079.849 0.2207 1.3450 -198.6737 1
ORIA 1_7 839541.496 684565.046
7071.032 0.1814 -0.0088 -198.9776 1
ORIA 1_8 837231.334 684558.243
7052.136 0.9195 0.4672 -199.2141 1
ORIA 1_9 834982.746 684585.240
7068.398 0.7520 0.2598 -199.3627 1
ORIA 2_1 811577.608 680691.395
6979.592 0.2341 -0.4994
1.0181 1
ORIA 2_2 813918.739 680656.320
6992.619 0.7454 0.5083
1.1389 1
ORIA 2_3 816279.883 680619.385
6981.092 0.2130
-1.1934 2.3833 1
ORIA 2_4 818576.202 680646.701
6976.845 -0.1283 -1.3106
4.1881 1
ORIA 2_5 820853.737 680713.271
6974.089 0.5515 1.5602
1.6802 1
ORIA 2_6 823139.581 680702.804
6964.884 -0.7140 0.5245
1.4939 1
ORIA 2_7 825410.346 680666.215
6976.134 -0.2926 -0.3230
2.5644 1
ORIA 2_8 827776.013 680649.544
6980.163 -0.4536 -0.1735
3.1452 1
ORIA 2_9 830128.589 680653.406
6984.985 -0.3665 0.0649
3.7909 1
NOTE: The Bingo EO file is normally named
itera.dat
The angular
units of the rotation angles are gons (0-400)
(photo) This file is normally called photo and contains most parameters from the aerial triangulation process. The exterior orientations for each photo are stored in the photo_parameters and the EO_parameters keyword contains the six photo transformation values. It is possible that the strip number and the photo number are encoded in the field after the photo_parameters keyword or the photo number only may be stored in this location. In any case the Vr Mapping software will prompt the user for the strip number location when using this format.
begin photo_parameters 3_7 strip_id 3
camera_name: Dimac55mm
camera_orientation: 1
image_id: X:\P0702310_Goochland_County_VA\2_IMAGES\CIR\3_7.tif
GPS_TimeStamp: 136970.85
view_geometry: nadir
std_dev: 0.005000
EO_parameters: 11655866.98965532 3820131.645322843 11830.78862899709 -2.877770640188788 5.282889728689369 -110.0761757166757
GIVEN_parameters: 11655867.13035697 3820131.743683286 11830.79926086803 -2.878252793333804 5.283451192187271 -110.0756898781241
GIVEN_std_devs: 150 150
50 0.5 0.5 0.5
footprint: 11652984.831401 3825616.884040
11660094.406308 3822977.702328 11656634.363078 3813498.160367 11649524.788171
3816137.342079
active_elevation: 346.533960
DRIVE_type: collinearity
image_size: 7228
5428
sensor_id: -1
end photo_parameters
(.prj) This file is written from the MATCH-AT aerial triangulation program. Typically this single file contains information to import Interior Orientations, orientations from measurements and orientations from exterior orientations. Following is an example of the format for the exterior orientation area of the project file. Each photograph in the project file contains a $PHOTO record which indicates the start of photograph parameters. The exterior orientation section of each $PHOTO starts with the $EXT_ORI : record.
NOTE: The MATCH-AT project also contains the measurements for interior orientations which can be read by the VrTwo Orientation program.
$EXT_ORI : 08:09:13
04/09/2007
153.81000 314469.26800 200635.63600 7759.94900
0.999041307739 0.043313766030 -0.006354770206
-0.043402462035 0.998951636657 -0.014555202183
0.005717667476 0.014817060896 0.999873873539
Field
Descriptions:
Record
1 Field 1 Focal length
Record
1 Field 2 X coordinate
Record
1 Field 3 Y coordinate
Record
1 Field 4 Z coordinate
Records
2-4 3x3 non-transposed exterior orientation transformation matrix.