The "crsdata" web service provides meta data about a CRS.

A typical URL is: http://myserver.mycompany.com:8080/INTGeoServer/json/crsdata?json={"crsCode":"4326"}

The following parameters are available:

crsCode: the CRS code of the desired CRS. This is a required parameter.

Here is an example response. This response has been formatted to improve readability.

{

"crsCode":4326,

"crsName":"WGS 84",

"deprecated":false,

"scope":"Horizontal component of 3D system. Used by the GPS satellite navigation system and for NATO military geodetic surveying.",

"remarks":"",

"areaOfUse":"World.",

"crsType":"geographic",

"displayMode":3,

"areaOfUseBBox":{

"northLat":90.0,

"southLat":-90.0,

"westLon":-180.0,

"eastLon":180.0

},

"hasAreaOfUse":false,

"wkt":"GEOGCS[\"WGS 84\",

DATUM[\"World Geodetic System 1984\",

SPHEROID[\"WGS 84\", 6378137.0, 298.257223563,

AUTHORITY[\"EPSG\",\"7030\"]],

AUTHORITY[\"EPSG\",\"6326\"]],

PRIMEM[\"Greenwich\", 0.0,

AUTHORITY[\"EPSG\",\"8901\"]],

UNIT[\"degree\", 0.017453292519943295],

AXIS[\"Geodetic latitude\", NORTH],

AXIS[\"Geodetic longitude\", EAST],

AUTHORITY[\"EPSG\",\"4326\"]]"

}

The crsCode entry is the CRS code that was requested.

The crsName entry is the name of the CRS.

The deprecated entry is true if this CRS has been deprecated for any number of reasons. It can be useful to examine deprecated CRS to see what changes have been made on the fixed version.

The scope entry gives information about the CRS and how it is used. For example, if it is used by GPS satellites, or if it was used for a geodetic survey.

The remarks entry shows any additional remarks about the CRS. Usually this is blank, however it can contain information such as the company that created it, the reason for creating it, etc.

The areaOfUse entry is a short description describing where the CRS is.

The crsType entry is what kind of CRS this is. The values can be: any, projected, geographic, vertical, local, or composite.

The displayMode entry is the display mode that is used for the CRS type. The values are integers, where IJ corresponds to 1, XY corresponds to 2, lat-long corresponds to 3, and unknown corresponds to -1.

The areaOfUseBBox entry contains the following four entries which define the area of use in latitude and longitude values.

The northLat entry is the northern latitude for the area of use.

The southLat entry is the southern latitude for the area of use.

The westLon entry is the western longitude for the area of use.

The eastLon entry is the eastern longitude for the area of use.

The hasAreaOfUse entry always returns false. This attribute is reserved for future versions of INTGeoServer.

The wkt entry is the well known text representation of the CRS. More information can be found here.