-
- Gps Gis
- Gps Gis
1- GPS , WGS-84 (). Helmert-1906 International-1924 Clarke 1880 .
2- GPS WGS-84 , GPS .
:
** Google Earth WGS-84 ( ) EarthCAD V1 KML Google Earth WGS-84 DXF .
:
EarthCAD V1 Google Earth KML WGS-84 DXF UTM of WGS-84 .
EarthCAD V1 :
http://www.arab-eng.org/vb/t93465.html
:
** GPS () WGS-84 , WGS-84 , WGS-84 WGS-84 , 200 Sessions . WGS-84 .
WGS-84
( ) , WGS-84 ( ) , ParaMaker 2.0 WGS-84 .
GPS , .
ParaMaker 1.0
- ParaMaker 2.0 :
* X, Y, Z .
* .Lat. , Lon. , h ( ).
: Lat. = Latitude , Lon. = Longitude , h. = Ellipsoidal Height

2- :
WGS-84 Helmert-1906 , P1 , P2 , P3 .
3- ( )
Text Files .
4- :
* WGS-84 [ WGS_PLh.txt ] :

* Helmert-1906 [ HLM_XYZ.txt ] :
* * Comment Line .
* Fields Separator Space .
* :
* System 1 (From Source)
* System 2 (To Destination)
* :
* System 1 (From Source)
* System 2 (To Destination)
.
...
* 1 8
2 5 Ellipsoid :

[ Calculate Transformation Parameters ]
:

- Text :
1 : , [ Parameters.txt ] .
2 : [Residuals.txt ] X , Y , Z ( ) .
3 : [ Accuracy.txt ]
.
[Residuals.txt ] [ Accuracy.txt ] .
.
[ Parameters.txt ] :
:
* .
* .
* .
* .
* .
X , Y , Z , ( ) Least Squares Weights .
[Residuals.txt ]

* ( ) .
* X P3 .
*
...
[ Accuracy.txt ]

* .
* X P3
:

...
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