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sdtsinfo

(To be removed) Information about SDTS data set

The sdtsinfo function will be removed in a future release. In most cases, use the georasterinfo function instead. For more information about replacement functionality, see Version History.

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 scalar or character vector that specifies the name of the SDTS catalog directory file, such as 7783CATD.DDF. The file name 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

Name of the catalog directory file of the SDTS transfer set, specified as a character vector.

Title

Name of the data set, specified as a character vector.

ProfileID

Profile Identifier, e.g., 'SRPE: SDTS RASTER PROFILE and EXTENSIONS', specified as a character vector.

ProfileVersion

Profile Version Identifier, e.g., 'VER 1.1 1998 01', specified as a character vector.

MapDate

Date associated with the cartographic information contained in the data set, specified as a character vector.

DataCreationDate

Creation date of the data set, specified as a character vector.

HorizontalDatum

Horizontal datum to which the data is referenced, specified as a character vector.

MapRefSystem

Projection and reference system used, specified as one of the following values: '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

Units used for the horizontal coordinate values, specified as a character vector.

VerticalUnits

Units used for the vertical coordinate values, specified as a character vector.

MinElevation

Scalar value of the minimum elevation value for the data set

MaxElevation

Scalar value of the maximum elevation value for the data set

Version History

Introduced before R2006a

expand all

R2024b: Errors on Linux platforms

On Linux® platforms, the sdtsinfo function has been removed. In most cases, you can replace the field values in the structure returned by the sdtsinfo function with property values stored in the RasterInfo object returned by the georasterinfo function.

This table shows how to update your code.

FieldRemovedRecommended Replacement
Filename 
info = sdtsinfo(filename);
info.Filename
 
info = georasterinfo(filename);
info.Filename
Title 
info = sdtsinfo(filename);
info.Title
 
info = georasterinfo(filename);
info.Metadata.TITLE
ProfileID 
info = sdtsinfo(filename);
info.ProfileID
No replacement.
ProfileVersion 
info = sdtsinfo(filename);
info.ProfileVersion
No replacement.
MapDate 
info = sdtsinfo(filename);
info.MapDate
No replacement.
DataCreationDate 
info = sdtsinfo(filename);
info.DataCreationDate
 
info = georasterinfo(filename);
info.Metadata.DATASET_CREATION_DATE
HorizontalDatum 
info = sdtsinfo(filename);
info.HorizontalDatum
 
info = georasterinfo(filename);
info.CoordinateReferenceSystem.GeographicCRS.Datum
MapRefSystem 
info = sdtsinfo(filename);
info.MapRefSystem

The well-known text (WKT) string representation of the coordinate reference system contains information about the projection and coordinate reference system.

info = georasterinfo(filename);
crs = info.CoordinateReferenceSystem;
wktstring(crs)

ZoneNumber 
info = sdtsinfo(filename);
info.ZoneNumber

If applicable, the WKT string representation of the coordinate reference system contains information about the zone number.

info = georasterinfo(filename);
crs = info.CoordinateReferenceSystem;
wktstring(crs)

XResolution 
info = sdtsinfo(filename);
info.XResolution
 
info = georasterinfo(filename);
info.RasterReference.CellExtentInWorldX
YResolution 
info = sdtsinfo(filename);
info.YResolution
 
info = georasterinfo(filename);
info.RasterReference.CellExtentInWorldY
NumberOfRows 
info = sdtsinfo(filename);
info.NumberOfRows
 
info = georasterinfo(filename);
info.RasterSize(1)
NumberOfCols 
info = sdtsinfo(filename);
info.NumberOfCols
 
info = georasterinfo(filename);
info.RasterSize(2)
HorizontalUnits 
info = sdtsinfo(filename);
info.HorizontalUnits
 
info = georasterinfo(filename);
info.CoordinateReferenceSystem.LengthUnit
VerticalUnits 
info = sdtsinfo(filename);
info.VerticalUnits
 
info = georasterinfo(filename);
info.CoordinateReferenceSystem.LengthUnit
MinElevation 
info = sdtsinfo(filename);
info.MinElevation
 
[Z,R] = readgeoraster(filename,"OutputType","double");
info = georasterinfo(filename);
m = info.MissingDataIndicator;
Z = standardizeMissing(Z,m);
min(Z,[],"all")
MaxElevation 
info = sdtsinfo(filename);
info.MaxElevation
 
[Z,R] = readgeoraster(filename,"OutputType","double");
info = georasterinfo(filename);
m = info.MissingDataIndicator;
Z = standardizeMissing(Z,m);
max(Z,[],"all")

See Also

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