code::SdtsDem Class Reference

List of all members.

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Detailed Description

This class can read in a Digital Elevation Map (DEM) that is in the USGS' Standard Data Transfer Standard (SDTS) format.

The resulting DEM can be obtained as a LatLonGrid. Because no resampling or projection is actually done, this is useful only for areas the size of a USGS Quad; for larger areas, you may not like the error characteristic.

Author:

Lakshman

Version:

Id

code_SdtsDem.h,v 1.3 2009/06/02 20:17:37 lakshman Exp

Public Member Functions
	SdtsDem (const std::string &prefix)
	An example of the category file name is /tmp/co/1183CATD.DDF.
SmartPtr< DataType >	getData ()
	The data are approximated into a LatLonGrid.
SmartPtr< LatLonGrid >	getLatLonGrid ()

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Constructor & Destructor Documentation

code::SdtsDem::SdtsDem

(

const std::string &

prefix

)

An example of the category file name is /tmp/co/1183CATD.DDF.

You would then pass in /tmp/co/1183.

All the other files including the CEL0 files that are part of the transfer should be in the same directory.

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Member Function Documentation

SmartPtr< DataType > code::SdtsDem::getData

(

)

The data are approximated into a LatLonGrid.

If the data are originally in a meters grid, the grid values and the coverage of the grid are retained. No resampling is done, so there will be some association error.

Returns:

invalid pointer if no data was read.

SmartPtr< LatLonGrid > code::SdtsDem::getLatLonGrid

(

)

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