—
Continuation: TABLE N° 2
TRIANGULATED STRIPS WITH THE INSTRUMENTAL METHOD
e
10
No |
Flight
| direction
Survey
purpose
Country Organization : m
| map scale
| | a) | Photo- Camera |
| total area | Cameras | graphic | calibra- |
| | material tion |
| CANADA | study purpo-|R.C. 8 [film
| [ses If = 15,3 | in the |
| |NRC1abo-
| lratories|
| lat least!
| lone year |
| |
| study purpo-
ses | |
| |
study purpo-|Fairchild |
ses IT 11 | |
|f = 15,30] |
| |
| | : |
| | |
|
| |
HL s | Sh
| | | | 3 E
| | |
FINLAND | 1 : 500 |RMK film |Are che-
| ] : 2.000 [15-23 | lc ked in|
| | | |Springs by |
| | RMK HS lice field]
| 110-18 | | photogra-|
| | | |phy |
| |R.C. 8 | |
| 115-23 | |
| (1 1,5-18
| | |
|
| |
| 1 : 10.000 |
| 1:100.000 | |
| |
| | |
| | |
| | |
| |
|
|
|. Ne he oos
| : |
FRANCE | Societé Francai- |1 : 5.000 RC 7 lultra - fiat
| se de Stéréoto- |1 : 2.000 if = 10 plates
pographie 11.3800 km? |
4.600 km |
|
| | |
| | |
| |
| |
|
|
Flight
altitude
and
| —
|Calibrated 6.000 m
19.000 m
6.000 m
14.500 m
E-W
Bridging
Ground control points E a TETE EE
Plotting instruments
| | m — : € 3 als L3 .
P Overlap | Auxiliary. Ground Total | Position of Plotting Preli- À pesait Operators De Bolt
| Photo and | odii s tre number |. tr ka m. WE i nds and Bridging SE
A juip- |character- | control points Type instru minary istics : absolute
| cae Sp ments | istics for in the strip ments tests of Norkins method orientation
length | strips rooms shifts of models
|
| 1240 km |A.P.R. |hilly [Control points first order |Periodically Optical mechani- A.P.R.
| | Oblique| | lare at the beginning calibrated cal orientation
| | Iphoto:-| land at the end of
| graphs Ithe strip only.
| |
| | |
1910 km APR. . | idem
| | Oblique hilly
| | iphoto-
| | |graphs |
155 km |A.P.R. |mountai- At the beginning |
| | | [nous very at the end for z and
| | | [rugged x determination.
| | | One point in the
| | | | |center for y adjust-
| | ment
| |
11:4.000 [60 Statoscope| For map 1 :20.000 triangel Cl. 8 Glass gride ] operat.|
|1 : 18.000 |40 km ‘horizon | 1-2 points in the points si-|C. 5 2-4 times in 2 operat.| Empirical relati-
| | camera | lend of the strip, in|gnalized the year |ve orientation
| | addition one point
| | | on every third fifth |
| | | | | photograph. A. 7 with Aircondi-|2 operat.
| | | | Map 1: 10.000 E.K. 2 A. tioned
| | ] : 20.000
| 1-2 points every 100
km? (one point e-
| very five models)
| | |
| |
11 : 30.000 | | Every model has 2 shifts
| | six levelled control
1 : 46.000 | | | | points. For large
| | | scale there is one
| | horizontal point per
| | 2-4 models and 6-8
| | levelled points peritriangel
| model points, si-
| map 1 : 100.000 gnalized
| 2-4 points every 100 ground de-
| km? tails
| : 22.000 | A. 7 Grid test bz 0
1 : 15.000
Bridging characteristies
Use a.
of data Time
from required
auxiliary | for model |
{equipments |
|
4-6 models
in a day
(1,6
12,0
|hours per
model
|
|
|
|
|
|
1 hour
No of |
repe-
titions |
Adjustment of |
A. distortion
B. recfration
C. film |
| shrinkage
|
| | : :
IA. Correction| Both numerical and graphical
| methods are used.
plates
Adjustment
Planimetry
Altimetry
of strips
Qeached
precision
Mean errors
IC. by f varia-|Linear and second degree con- |from infra-
tion
|
A. Compensa-|The machine
|transferred to|
|
|
|
| i . |
| ting plates coordinates are |
|
|
|
| with
|parabolie cur-
‘map coordina-|
tes by using|
| horizontal con- |
trol points on|
both ends of|
the strip. The|
adjustment,
is made gra-
phically
help of
ves
|
| A. Compensa-|Graphic methods
ting plates |
|
|
|
formal transformation
Use of data Use Use of
from | of other : E
sh | ; Tests
auxiliary | electronic | equip- | x
: Z
equipments| computers | ment y
| A.P.R. yes Checked on a-|-- 64 m |+ 5,6 m
data bout 100 plani- + 9,5 m
|metric and 23
red photo- | elevation
|graphy | |points
| {
| | |
| |106 planime-|23- 7,05 m |+ 2,5 m
| tric |-- 0,0 m
| | 73 elevation
| | | |points
| | | |
| Î
| | | | 8 planime-- + 28m + 2,2 m
| | |tric + 2,4 m
1126 elevation
|points
T
|1 : 40.000
|+ 25m + 2,5
: 30.000 photo scale
lim 110m
+ 1,5 m
photo scale
m
1.0 m
