List of Ellipsoid Datum Parameter Sets.
To display the current list contained in datums.h press here.
Used by the DIFF programs create_dem_par and coord_trans to support the Ellipsoid Datum Parameter definition.
Each line of the list contains the following parameters
(corresponding to the structure DATUM defined in
typedef_DIFF.h:
| Structure Elements | Example | Definition |
| name[80] | United Kingdom National | name of datum |
| ellips_num | 1 | ellipsoid number (as defined in ellipsoids.h) |
| dx,dy,dz | 370.30, -111.06, 431.17 | offset in meters to WGS-84 |
| scale | 0.0 | NOTE: (1+scale) is the datum scaling factor |
| alpha,beta,gamma | 0.0, 0.0, 0.0 | rotation angles about the x,y,z axis of WGS84 coordinate system relative to local datum (arc-seconds) |
| country | United Kingdom, England, Great Britain | country or countries where it applies |
| ex,ey,ez | 0.0, 0.0, 0.0 | errors in meters for dx, dy, dz |
| count | 0 | number of points used to determine error |
SEE ALSO
Users Guide, ellipsoids.h, projection_params.h, typedef_ISP.h, typedef_DIFF.h .
© Copyrights for Documentation, Users Guide and Reference Manual by Gamma Remote Sensing, 2003.
UW, CW, TS, last change 20-Feb-2003.