[mapserver-users] convert projection from UTM to WGS84 using proj

Murat Beyhan beyhan at deprem.gov.tr
Wed May 16 04:41:39 EDT 2012


Dear friends, 
I'm sorry, I'm not good at GIS applications but I wondering about
conversion between various projection or datum of the data files.

data.shp data.shx data.dbf and data.prj files are available.

shpdump data.shp gives following

Shape:0 (ArcZ)  nVertices=4, nParts=1
  Bounds:(  513275.786, 4006041.761, 0, 0)
      to (  513345.812, 4006078.182, 0, 0)
     (  513275.786, 4006078.182, 0, 0) Ring
     (  513301.130, 4006064.906, 0, 0)
     (  513321.636, 4006053.249, 0, 0)
     (  513345.812, 4006041.761, 0, 0)
...





data.prj as follows

PROJCS["(UTM)Universal Transvers Merkator 3�",GEOGCS["EUROPEAN
1950",DATUM["European_Datum_1950",SPHEROID["International",6378388.00000000,297.00000000],
TOWGS84[-87.00000000,-98.00000000,-121.00000000,0.00000000,0.00000000,0.00000000,0.00000000]],
PRIMEM["Greenwich",0.00000000],UNIT["Degree",0.01745329],AUTHORITY["EPSG","4230"]],PROJECTION["TRANSVERSE_MERCATOR"],
PARAMETER["SCALE_FACTOR",1.00000000],PARAMETER["CENTRAL_MERIDIAN",36.00000000],PARAMETER["LATITUDE_OF_ORIGIN",0.00000000],
PARAMETER["FALSE_EASTING",500000.00000000],PARAMETER["FALSE_NORTHING",0.00000000],UNIT["meter",1.00000000]]


using these data How to convert a file which is created using
european_datum_1950 to WGS84 (World Geodetic System 1984)
or where I have to start to understand these method of applications
using PROJ4.
Thanks
muratB


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