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NAD2NAD(1) | General Commands Manual | NAD2NAD(1) |
NAME¶
nad2nad - North American Datum conversion filterSYNOPSIS¶
nad2nad [ -eEfihortwW [ args ] ] [ +args ] file[s]DESCRIPTION¶
Program nad2nad is a filter to convert data between North America Datum 1927 (NAD27) and North American Datum 1983. nad2nad can optionally process both State Plane Coordinate System (SPCS) and Universal Transverse Mercator (UTM) grid data as well as geographic data for both input and output. This can also be accomplished with the cs2cs program. The following control parameters can appear in any order:- -[i|o] keyword[,keyword]
- The -i and -o option expect keyword arguments which define various characteristics and processing modes of the respective input data. Usage allows multiple arguments to be included with a - operator when separated by commas. Datum conversion requires the data to be in geographic coordinates, but nad2nad will allow conversion of data to and from SPCS or UTM grid systems. The following are keywords and arguments recognized by both the -i and -o that will apply to respective input and output conversion of user data to internal geographic coordinates:
- 27|83
- datum of data
- utm=n
- UTM coordinates in meters for zone n
- spcs=n
- for data in SPCS coordinates, where n is state zone number.
- feet
- data units are in U.S. Surveyor's feet. This is allowed only when the spcs option been previously used. Default coordinates are in meters.
- bin
- for data in binary form.
- rev
- data in lat-lon order rather than default lon-lat order.
- hp=ss
- use high precision conversion zone ss. Certain States have ancillary correction tables to further refine the basic conus table. Ss key and States are:
FL Florida
MD Maryland
TN Tennessee
WI Wisconsin
WO Washington, Oregon and northern part of California.
- -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 -o bin option is employed, an error is output as HUGE_VAL for both values.
- -r region
- specifies which regional conversion table to employ which are identified by the following:
conus - conterminous 48 States
alaska - State of Alaska
hawaii - State of Hawaii
prvi - Puerto Rico and Virgin Islands
stgeorge - St. George Is, Alaska
stpaul - St. Paul Is, Alaska
stlrnc - St. Lawrence Is, Alaska
- -E
- Input coordinates are echoed to output before ouput values.
- -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.
- -[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.
SEE ALSO¶
cs2cs(1U), proj(1U),HOME PAGE¶
http://www.remotesensing.org/proj2000/03/21 Rel. 4.4 |