ENVIRPCRasterSpatialRef::ConvertMGRSToLonLat

The ConvertMGRSToLonLat method converts Military Grid Reference System (MGRS) coordinates to a set of geographic latitude/longitude coordinates within a Rational Polynomial Coefficient (RPC) spatial reference.

Example

See the example for ENVIStandardRasterSpatialRef::ConvertMGRSToLonLat. That example shows the pattern of using the ConvertMGRSToLonLat method, only you would replace the standard spatial reference with an RPC spatial reference.

Syntax

ENVIRPCRasterSpatialRef.ConvertMGRSToLonLat, MGRS, Lon, Lat [, MODE=integer]

Arguments

MGRS

A string with the MGRS coordinates. You can specify a scalar or a vector of MGRS values.

Lon

A named variable that contains the longitude coordinate

Lat

A named variable that contains the latitude coordinate

Keywords

ERROR

Set this keyword to a named variable that will contain any error message issued during execution of this routine. If no error occurs, the ERROR variable will be set to a null string (''). If an error occurs and the routine is a function, then the function result will be undefined.

When this keyword is not set and an error occurs, ENVI returns to the caller and execution halts. In this case, the error message is contained within !ERROR_STATE and can be caught using IDL's CATCH routine. See IDL Help for more information on !ERROR_STATE and CATCH.

See Manage Errors for more information on error handling in ENVI programming.

MODE

Set this keyword to one of the following integers to determine the format in describing a point on an MGRS grid:

0: Automatic (default)
1: All spheroids are treated the same as WGS-84
2: All spheroids are treated the same as Clarke 1866 or Bessel
10: Automatic; a longitude value of +180 is in Zone 1
11: All spheroids are treated the same as WGS-84; a longitude value of +180 is in Zone 1
12: All spheroids are treated the same as Clarke 1866 or Bessel; a longitude value of +180 is in Zone 1

Version History

ENVI 5.1

Introduced

API Version

4.2