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؇ǩ`ܽ


  󤯤ͬ ㏊ #09
ԼB
Μy귽
؇·
؇ǩ`ηN
؇ǩ`izǤߤ




      󤯤ͬ ㏊ #09
ԼB
?         iߣ`  
?   ޤ
?h   ǰ
?š   ϵ   ץ
?ӛ

󤯤㏊ؤβμӤϽؤ Ŀ

         󤯤ͬ ㏊ #09
Μy귽
?褤
?褤ȫǤϤʤܞ塣
?ܞΥѥ`
  뾶
  O뾶
 ӛĤΥѥ`xʤ
                      2
           ? 뾶 ?
 x ? 1 ? ?      ?
           ? O뾶 ?

             󤯤ͬ ㏊ #09
Μy귽
?ϤϻܞǤϤʤ
 ȱF롣
?Υѥ`
  L뾶 P뾶
                    ̰뾶
  ƽ     ƽ ? 1 ?
                    L뾶
 xʤȱƽʤvS
 x ? 2ƽ - ƽ 2


          󤯤ͬ ㏊ #09
Μy귽
ηN Ĥʤ
                         L뾶               ƽ


  ٥å                   6,377,397.155m   1:299.152 813

   GRS80                  6,378,137m      1:298.257 222 101
Geodetic Reference System


  WGS84                   6,378.137m      1:298.257 223 563
 World Geodetic System




                            󤯤ͬ ㏊ #09
Μy귽
λäαF
?ϱϾ        
?|ϽU            
?gλ϶ȷ롣
  ȣ ֣
  ֣ 룽      
  P

      󤯤ͬ ㏊ #09
Μy귽
?ϵ
 嚰ͬǤ⾕?U
 ΂ω
  Ժ   

ձyϵ ձyϵ 
yϵ ձyϵ    ȤΉQ

      󤯤ͬ ㏊ #09
Μy귽
??UȤʾϡԪˤ
 ϵ٤
?ɫZΤ
                 ϵ                           
            Tokyo Datum                        ٥å
                ITRF94                         GRS80
 (International Terrestrial Reference Frame)

                WGS84                          WGS84
 ձyϵ                           Tokyo Datum
 ձyϵ2000                        ITRF94
                         󤯤ͬ ㏊ #09
؇·
?؇ǤαF
 ȤƽDZF顢
 ¤ΣĤΤɤ줫_ˤʤ롣
  x L ?e?λ Ƕ
?؇·
 󤭤 ϵy˷롣
  F?Ͳ?λ

      󤯤ͬ ㏊ #09
؇·
?؏
  ()        ؏        Ĥʇ
    Ͳ      λ       륫ȥ
                           Ͳ
    F      e         ܥ̇
    λ      x         ƥ쥪
?οĩ`
 ˥å؇ǥо > PJ_Japan
 http://www.nijix.com/lab/free.html

              󤯤ͬ ㏊ #09
؇·
?Ͳ(䣺An Album of Map Projections)




             󤯤ͬ ㏊ #09
؇·
?ܥ̇(䣺An Album of Map Projections)




              󤯤ͬ ㏊ #09
؇·
?ƥ쥪(䣺An Album of Map Projections)




              󤯤ͬ ㏊ #09
؇ǩ`ηN
?󤭤֤¤Σ
 饹`ǩ`          
   ؇?lд桢
    󥿩`ͥåϤε؇`ӥ
 ٥`ǩ`       
   ߶?åǩ`


       󤯤ͬ ㏊ #09
؇ǩ`ηN
?饹`ǩ`
Ժ ؇20/5/2.5
CD-ROM 1ö 7,500(TIFF)
؇2.5ˤĤƤWebE
  ä ؇E`ӥ
  http://watchizu.gsi.go.jp/
  ӹݩ`
  http://portal.cyberjapan.jp/


              󤯤ͬ ㏊ #09
؇ǩ`ηN
?٥`ǩ`
  Ժ ؇5m/50m/250må(˸)<SEM,TEM>
  Ժ ؇500(t)
  CD-ROM 1ö 7,500
  UgbIʡ ASTER-GDEM<1,GeoTIFF>
  http://www.gdem.aster.ersdac.or.jp/
  NASA SRTM30/3/1<30/3/1,DEM> SWBD<1,Shape>
  http://www2.jpl.nasa.gov/srtm/
  NGDC ETOPO2v2(2,DEM)
  http://www.ngdc.noaa.gov/mgg/global/etopo2.html
  NGA DTED level0(30,DTED)
  http://geoengine.nga.mil/muse-cgi-bin/rast_roam.cgi


                󤯤ͬ ㏊ #09
؇ǩ`ηN
?؇ǩ`Õrע
 ǩ`ϵע
 ǩ`ͶӰע
 ȻǤ͡
 ǩ`ؤע
 Ժ        Έ
    ک`ؤΒdˤФꡣ

      󤯤ͬ ㏊ #09
؇ǩ`izǤߤ
ǰizΤϴäꤹΤǥ饤֥
?GeoTIFFʽ
 libgeotiff - X/MIT
 http://trac.osgeo.org/geotiff/
?Shapeʽ
 shapelib - X/MIT, LGPL
 http://shapelib.maptools.org/
?DEM/SEM/GeoTIFFʽ
 GDAL - X/MIT
 http://www.gdal.org/


           󤯤ͬ ㏊ #09
ο
ǩ`ϥɥ֥å
    ؔⷨ ձ؇󥿩`
 ISBN 978-4889460469

An Album of Map Projections
          U.S Geological Survey
 ISBN       978-0160033681

yϵˉQ
    w 
 ISBN 978-4889410143

                   󤯤ͬ ㏊ #09

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