Major restructure and rewrite of docs.

A section on "Using PROJ.4" has been introduced giving a introduction
on how to use PROJ.4. The Parameters section has been removed and the
content reworked into other sections. Additionally the order of chapters
has been changed to provide a more complete and readable experience for
users of the documentation.

1 files changed, 0 insertions, 145 deletions

diff --git a/docs/source/apps/cs2cs.rst b/docs/source/apps/cs2cs.rst
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-.. _cs2cs:
-
-================================================================================
-cs2cs
-================================================================================
-
-
-.. Index:: cs2cs
-
-``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.
-
-
-Synopsis
-********
-
-::
-
-       cs2cs [ -eEfIlrstvwW [ args ] ] [ +opts[=arg] ] [ +to [+opts[=arg]] ] file[s]
-
-Description
-***********
-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 values.
-
-       -E     causes the input coordinates to be copied to the output line prior to printing  the
-              converted values.
-
-       -l[p|P|=|e|u|d]id
-              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 deci-
-              mal  degrees. The default format is "%.2f" for forward projection and DMS for
-              inverse.
-
-       -[w|W]n
-              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. Usage varies with
-projection and for a complete description consult the `projection pages <../projections/index.html>`_
-
-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.
-
-
-Example
-*******
-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
-     EOF
-
-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
-
-