Provided by: proj-bin_4.9.2-2_amd64 bug


       cs2cs - cartographic coordinate system filter


       cs2cs [ -eEfIlrstvwW [ args ] ] [ +opts[=arg] ]
             [ +to [+opts[=arg]] ] file[s]


       Cs2cs  performs  transformation between the source and destination cartographic coordinate
       system on a set of  input  points.   The  coordinate  system  transformation  can  include
       translation  between  projected  and  geographic coordinates as well as the application of
       datum shifts.

       The following control parameters can appear in any order:

       -I     method to specify inverse translation, convert from +to coordinate  system  to  the
              primary coordinate system defined.

       -ta    A specifies a character employed as the first character to denote a control line to
              be passed through without processing.  This option applicable to ascii input  only.
              (# is the default value).

       -e string
              String  is  an  arbitrary  string  to be output if an error is detected during data
              transformations.  The default value is: *\t*.  Note  that  if  the  -b,  -i  or  -o
              options  are  employed,  an  error  is  returned  as HUGE_VAL value for both return

       -E     causes the input coordinates to be copied to the output line prior to printing  the
              converted values.

              List  projection  identifiers  with  -l, -lp or -lP (expanded) that can be selected
              with +proj.  -l=id gives expanded description of  projection  id.   List  ellipsoid
              identifiers  with  -le,  that can be selected with +ellps, -lu list of cartesian to
              meter conversion factors that can be selected with +units or  -ld  list  of  datums
              that can be selected with +datum.

       -r     This options reverses the order of the expected input from longitude-latitude or x-
              y to latitude-longitude or y-x.

       -s     This options reverses the order of the output from x-y or longitude-latitude to y-x
              or latitude-longitude.

       -f format
              Format  is  a  printf  format string to control the form of the output values.  For
              inverse projections, the output will be in degrees when this  option  is  employed.
              If  a format is specified for inverse projection the output data will be in decimal
              degrees.  The default format is "%.2f" for forward projection and DMS for inverse.

              N is the number of significant fractional digits to employ for seconds output (when
              the  option is not specified, -w3 is assumed).  When -W is employed the fields will
              be constant width and with leading zeroes.

       -v     causes a listing of cartographic control parameters tested  for  and  used  by  the
              program to be printed prior to input data.

       The  +args run-line arguments are associated with cartographic parameters and usage varies
       with projection and for a complete description see Cartographic Projection Procedures  for
       the UNIX Environment—A User's Manual and supplementary documentation for Release 4.

       The  cs2cs  program  requires two coordinate system definitions.  The first (or primary is
       defined based on all projection parameters not appearing  after  the  +to  argument.   All
       projection  parameters  appearing  after the +to argument are considered the definition of
       the second coordinate system.   If  there  is  no  second  coordinate  system  defined,  a
       geographic  coordinate  system  based  on the datum and ellipsoid of the source coordinate
       system is assumed.  Note that the source and destination coordinate  system  can  both  be
       projections, both be geographic, or one of each and may have the same or different datums.

       Additional  projection control parameters may be contained in two auxiliary control files:
       the first is optionally referenced  with  the  +init=file:id  and  the  second  is  always
       processed  after  the name of the projection has been established from either the run-line
       or the contents of +init file.  The environment parameter PROJ_LIB establishes the default
       directory for a file reference without an absolute path.  This is also used for supporting
       files like datum shift files.

       One or more files (processed in left to right order) specify the  source  of  data  to  be
       transformed.  A - will specify the location of processing standard input.  If no files are
       specified, the input is assumed to be from stdin.  For input data the two data values must
       be  in the first two white space separated fields and when both input and output are ASCII
       all trailing portions of the input line are appended to the output line.

       Input geographic data (longitude and latitude) must be in DMS or  decimal  degrees  format
       and  input  cartesian  data  must  be in units consistent with the ellipsoid major axis or
       sphere radius units.  Output geographic coordinates will normally be in DMS format (use -f
       %.12f for decimal degrees with 12 decimal places), while projected (cartesian) coordinates
       will be in linear (meter, feet) units.


       The following script
             cs2cs +proj=latlong +datum=NAD83
                   +to +proj=utm +zone=10 +datum=NAD27 -r <<EOF
             45d15'33.1"   111.5W
             45d15.551666667N   -111d30
             +45.25919444444    111d30'000w
       will transform the input NAD83 geographic coordinates into NAD27 coordinates  in  the  UTM
       projection  with  zone  10 selected.  The geographic values of this example are equivalent
       and meant as examples of various forms of DMS input.  The x-y output data will  appear  as
       three lines of:
             1402285.99      5076292.42 0.000


       Cartographic  Projection  Procedures  for  the UNIX Environment—A User's Manual, (Evenden,
       1990, Open-file report 90-284).
       Map Projections Used by the U. S. Geological Survey (Snyder, 1984, USGS Bulletin 1532).
       Map Projections—A Working Manual (Snyder, 1988, USGS Prof. Paper 1395).
       An Album of Map Projections (Snyder & Voxland, 1989, USGS Prof. Paper 1453).


                                       2000/03/21 Rel. 4.4                                PROJ(1)