1GSHHS(1)                     Generic Mapping Tools                    GSHHS(1)
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NAME

6       gshhs - Extract ASCII listings from binary GSHHS or WDBII data files
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SYNOPSIS

9       gshhs binaryfile.b [ -L ] > asciifile.txt
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DESCRIPTION

12       gshhs reads the binary coastline (GSHHS) or political boundary or river
13       (WDBII) files and extracts an ASCII listing.  It automatically  handles
14       byte-swabbing  between  different architectures.  Optionally, only seg‐
15       ment header info can be displayed
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17       binaryfile.b
18              GSHHS or WDBII binary data file as distributed  with  the  GSHHS
19              data supplement.  Any of the 5 standard resolutions (full, high,
20              intermediate, low, crude) can be used.
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22       -L     Only outlut  a  listing  of  polygon  or  line  segment  headers
23              [default outputs headers and data records].
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EXAMPLES

26       To convert the entire intermediate GSHHS binary data to ASCII, run
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28       gshhs gshhs_i.b > gshhs_i.txt
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30       To  only  get  a  listing of the headers for the river data set at full
31       resolution, try
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33       gshhs wdb_rivers_f.b -L > riverlisting.txt
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BUGS

36       While the GSHHS data is organized as a  set  of  closed  polygons,  the
37       rivers and boundary data are just a set of line segments in no particu‐
38       lar order.  Thus, it is not possible to extract information  pertaining
39       to just one river or one country.
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SEE ALSO

42       GMT(1), gshhs_dp(1) gshhstograss(1)
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46GMT 4.3.1                         15 May 2008                         GSHHS(1)