[Proj] Latest copy of manual up
Roger Oberholtzer
roger at opq.se
Fri Oct 3 04:16:26 EDT 2008
On Thu, 2008-10-02 at 17:40 -0400, Gerald I. Evenden wrote:
> Check out:
>
> http://members.verizon.net/~gerald.evenden/proj4/manual.pdf
>
> See! I did upload if by this weekend. :-)
>
I am not sure of the statements on page 46 about ktmerc being used in
Sweden. The current official method used in Sweden in SWEREF99, which is
described here:
http://www.lantmateriet.se/templates/LMV_Page.aspx?id=4219
I use:
"+proj=tmerc +ellps=GRS80 "
"+k=0.9996 +x_0=500000 +y_0=0 +lon_0=15.0 +lat_0=0.0 "
"+towgs84=0,0,0,0,0,0,0 "
"+no_defs"
I have tested this with the control points provided in the link above.
The 'Ref.' line is what the northing easting should be. The Calc line is
what I get with the library. Looks really good.
SWEREF99 TM Test:
WGS84: Latitude: 55°00’N Longitude: 12°45’E
Altitude: 0.00000000
Ref. Easting: 356083.438 Northing: 6097106.672
Calc. Easting: 356083.438 Northing: 6097106.672 0.000
meters from ref.
WGS84: Latitude: 55°00’N Longitude: 14°15’E
Altitude: 0.00000000
Ref. Easting: 452024.069 Northing: 6095048.642
Calc. Easting: 452024.069 Northing: 6095048.642 0.000
meters from ref.
WGS84: Latitude: 57°00’N Longitude: 12°45’E
Altitude: 0.00000000
Ref. Easting: 363331.554 Northing: 6319636.937
Calc. Easting: 363331.554 Northing: 6319636.937 0.000
meters from ref.
WGS84: Latitude: 57°00’N Longitude: 19°30’E
Altitude: 0.00000000
Ref. Easting: 773251.054 Northing: 6326392.707
Calc. Easting: 773251.054 Northing: 6326392.707 0.000
meters from ref.
WGS84: Latitude: 59°00’N Longitude: 11°15’E
Altitude: 0.00000000
Ref. Easting: 284626.066 Northing: 6546096.724
Calc. Easting: 284626.066 Northing: 6546096.724 0.000
meters from ref.
WGS84: Latitude: 59°00’N Longitude: 19°30’E
Altitude: 0.00000000
Ref. Easting: 758410.519 Northing: 6548757.206
Calc. Easting: 758410.519 Northing: 6548757.206 0.000
meters from ref.
WGS84: Latitude: 61°00’N Longitude: 12°45’E
Altitude: 0.00000000
Ref. Easting: 378323.440 Northing: 6764877.311
Calc. Easting: 378323.440 Northing: 6764877.311 0.001
meters from ref.
WGS84: Latitude: 61°00’N Longitude: 18°45’E
Altitude: 0.00000000
Ref. Easting: 702745.127 Northing: 6768593.345
Calc. Easting: 702745.127 Northing: 6768593.345 0.000
meters from ref.
WGS84: Latitude: 63°00’N Longitude: 12°00’E
Altitude: 0.00000000
Ref. Easting: 348083.148 Northing: 6989134.048
Calc. Easting: 348083.148 Northing: 6989134.048 0.001
meters from ref.
WGS84: Latitude: 63°00’N Longitude: 19°30’E
Altitude: 0.00000000
Ref. Easting: 727798.671 Northing: 6993565.630
Calc. Easting: 727798.671 Northing: 6993565.630 0.000
meters from ref.
WGS84: Latitude: 65°00’N Longitude: 13°30’E
Altitude: 0.00000000
Ref. Easting: 429270.201 Northing: 7209293.753
Calc. Easting: 429270.201 Northing: 7209293.753 0.000
meters from ref.
WGS84: Latitude: 65°00’N Longitude: 21°45’E
Altitude: 0.00000000
Ref. Easting: 817833.405 Northing: 7225449.115
Calc. Easting: 817833.405 Northing: 7225449.115 0.000
meters from ref.
WGS84: Latitude: 67°00’N Longitude: 16°30’E
Altitude: 0.00000000
Ref. Easting: 565398.458 Northing: 7432168.174
Calc. Easting: 565398.458 Northing: 7432168.174 0.000
meters from ref.
WGS84: Latitude: 67°00’N Longitude: 24°00’E
Altitude: 0.00000000
Ref. Easting: 891298.142 Northing: 7459745.672
Calc. Easting: 891298.142 Northing: 7459745.673 0.001
meters from ref.
WGS84: Latitude: 69°00’N Longitude: 21°00’E
Altitude: 0.00000000
Ref. Easting: 739639.195 Northing: 7666089.698
Calc. Easting: 739639.195 Northing: 7666089.698 0.000
meters from ref.
According to http://www.lantmateriet.se/templates/LMV_Page.aspx?id=4766,
the older RT90 also used Transverse Mercator.
--
Roger Oberholtzer
OPQ Systems / Ramböll RST
Ramböll Sverige AB
Kapellgränd 7
P.O. Box 4205
SE-102 65 Stockholm, Sweden
Office: Int +46 8-615 60 20
Mobile: Int +46 70-815 1696
And remember:
It is RSofT and there is always something under construction.
It is like talking about large city with all constructions finished.
Not impossible, but very unlikely.
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