[ gpsdrive ] noaa charts 11466_1

Chris h chris123 at magma.ca
Thu Nov 20 04:51:31 AKST 2008


On Thursday 20 November 2008 07:11:55 Chris h wrote:
> Greets:
>
> Downloaded the chart and updates from NOAA service
> http://www.nauticalcharts.noaa.gov/index.html

Not sure whats going on here as gdalinfo reports:
-----------------------------------------------------------------------
Driver: BSB/Maptech BSB Nautical Charts
Files: 11466_1.KAP
Size is 8732, 12349
Coordinate System is `'
GCP Projection = GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 
84",6378137,298.257223563,AUTHORITY["EPSG",7030]],TOWGS84
[0,0,0,0,0,0,0],AUTHORITY["EPSG",6326]],PRIMEM["Greenwich",0,AUTHORITY["EPSG",8901]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG",9108]],AXIS["Lat",NORTH],AXIS["Long",EAST],AUTHORITY["EPSG",4326]]
GCP[  0]: Id=GCP_1, Info=
          (3407,11331) -> (-80.3331027778,25.5836972222,0)
GCP[  1]: Id=GCP_2, Info=
          (3407,1638) -> (-80.3331027778,26.2837027778,0)
GCP[  2]: Id=GCP_3, Info=
          (8416,1638) -> (-79.9330972222,26.2837027778,0)
GCP[  3]: Id=GCP_4, Info=
          (8416,11331) -> (-79.9330972222,25.5836972222,0)
GCP[  4]: Id=GCP_5, Info=
          (7578,11331) -> (-79.9999944444,25.5836972222,0)
GCP[  5]: Id=GCP_6, Info=
          (7578,10185) -> (-79.9999944444,25.666675,0)
GCP[  6]: Id=GCP_7, Info=
          (7578,7881) -> (-79.9999944444,25.8333361111,0)
GCP[  7]: Id=GCP_8, Info=
          (7578,5573) -> (-79.9999944444,26,0)
GCP[  8]: Id=GCP_9, Info=
          (7578,3262) -> (-79.9999944444,26.1666805556,0)
GCP[  9]: Id=GCP_10, Info=
          (7578,1638) -> (-79.9999944444,26.2837027778,0)
GCP[ 10]: Id=GCP_11, Info=
          (5491,11331) -> (-80.16665,25.5836972222,0)
GCP[ 11]: Id=GCP_12, Info=
          (5491,10185) -> (-80.16665,25.666675,0)
GCP[ 12]: Id=GCP_13, Info=
          (5491,7881) -> (-80.16665,25.8333361111,0)
GCP[ 13]: Id=GCP_14, Info=
          (5491,5573) -> (-80.16665,26,0)
GCP[ 14]: Id=GCP_15, Info=
          (5491,3262) -> (-80.16665,26.1666805556,0)
GCP[ 15]: Id=GCP_16, Info=
          (5491,1638) -> (-80.16665,26.2837027778,0)
GCP[ 16]: Id=GCP_17, Info=
          (8416,10185) -> (-79.9330972222,25.666675,0)
GCP[ 17]: Id=GCP_18, Info=
          (3407,10185) -> (-80.3331027778,25.666675,0)
GCP[ 18]: Id=GCP_19, Info=
          (8416,7881) -> (-79.9330972222,25.8333361111,0)
GCP[ 19]: Id=GCP_20, Info=
          (3407,7881) -> (-80.3331027778,25.8333361111,0)
GCP[ 20]: Id=GCP_21, Info=
          (8416,5573) -> (-79.9330972222,26,0)
GCP[ 21]: Id=GCP_22, Info=
          (3407,5573) -> (-80.3331027778,26,0)
GCP[ 22]: Id=GCP_23, Info=
          (8416,3262) -> (-79.9330972222,26.1666805556,0)
GCP[ 23]: Id=GCP_24, Info=
          (3407,3262) -> (-80.3331027778,26.1666805556,0)
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0,12349.0)
Upper Right ( 8732.0,    0.0)
Lower Right ( 8732.0,12349.0)
Center      ( 4366.0, 6174.5)
Band 1 Block=8732x1 Type=Byte, ColorInterp=Palette
  Color Table (RGB with 13 entries)
    0: 0,0,0,255
    1: 255,255,255,255
    2: 244,232,193,255
    3: 239,216,163,255
    4: 214,219,201,255
    5: 191,255,191,255
    6: 170,216,229,255
    7: 145,145,145,255
    8: 114,114,114,255
    9: 150,176,155,255
   10: 94,153,193,255
   11: 219,73,150,255
   12: 209,221,239,255
--------------------------------------eof-------------

and NOAA's chartreprojector 
see: http://www.csc.noaa.gov/digitalcoast/tools/chartre.html (for BSB only)
reports the following:
-----------------------------------------------
Header information 
for /home/chris123/Desktop/noaa_12200_1/11466/BSB_ROOT/11466/11466_1.KAP
Chart Name: JUPITER INLET TO FOWEY ROCKS
North Bound [deg]: 26d 24' 5.7"
South Bound [deg]: 25d 30' 35.8"
West Bound [deg]: -80d 36' 18.6"
East Bound [deg]: -79d 54' 28.4"
Rows,Columns: 8732,12349
Scale: 1/80000
Projection: MERCATOR
Horizontal Datum: NAD83
Projection Param: 25.933
Approx X pix size[m]: 8.00
Approx Y pix size[m]: 8.00
--------------------------------------------

So clearly the charts should work fine. Will start with re-installing qgis to 
see if I can get that to work first. Then move back to gpsdrive. Using gdal 
version svn 1.6 to do the translations.


-- 
/ch


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