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sdtsinfo

Information about SDTS data set

Syntax

info = sdtsinfo(filename)

Description

info = sdtsinfo(filename) returns a structure whose fields contain information about the contents of a SDTS data set.

filename is a string that specifies the name of the SDTS catalog directory file, such as 7783CATD.DDF. The filename can also include the directory name. If filename does not include the directory, then it must be in the current directory or in a directory on the MATLAB® path. If sdtsinfo cannot find the SDTS catalog file, it returns an error.

If any of the other files in the data set as specified by the catalog file is missing, a warning message is returned. Subsequent calls to read data from the file might also fail.

Field Descriptions

The info structure contains the following fields:

Filename

String containing the name of the catalog directory file of the SDTS transfer set

Title

String containing the name of the data set

ProfileID

String containing the Profile Identifier, e.g., 'SRPE: SDTS RASTER PROFILE and EXTENSIONS'

ProfileVersion

String containing the Profile Version Identifier, e.g., 'VER 1.1 1998 01'

MapDate

String specifying the date associated with the cartographic information contained in the data set

DataCreationDate

String specifying the creation date of the data set

HorizontalDatum

String representing the horizontal datum to which the data is referenced

MapRefSystem

String describing the projection and reference system used: 'GEO', 'SPCS', 'UTM', 'UPS', or ''

ZoneNumber

Scalar value representing the zone number

XResolution

Scalar value representing the X component of the horizontal coordinate resolution

YResolution

Scalar value representing the Y component of the horizontal coordinate resolution

NumberOfRows

Scalar value representing the number of rows of the DEM

NumberOfCols

Scalar value representing the number of columns of the DEM

HorizontalUnits

String specifying the units used for the horizontal coordinate values

VerticalUnits

String specifying the units used for the vertical coordinate values

MinElevation

Scalar value of the minimum elevation value for the data set

MaxElevation

Scalar value of the maximum elevation value for the data set

Examples

info = sdtsinfo('9129CATD.DDF');

See Also

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