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99 lines
4 KiB
C++
99 lines
4 KiB
C++
/******************************************************************************
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* $Id: sdtsxref.cpp 10645 2007-01-18 02:22:39Z warmerdam $
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*
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* Project: SDTS Translator
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* Purpose: Implementation of SDTS_XREF class for reading XREF module.
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* Author: Frank Warmerdam, warmerdam@pobox.com
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*
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******************************************************************************
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* Copyright (c) 1999, Frank Warmerdam
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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****************************************************************************/
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#include "sdts_al.h"
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CPL_CVSID("$Id: sdtsxref.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
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/************************************************************************/
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/* SDTS_XREF() */
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/************************************************************************/
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SDTS_XREF::SDTS_XREF()
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{
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pszSystemName = CPLStrdup( "" );
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pszDatum = CPLStrdup( "" );
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nZone = 0;
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}
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/************************************************************************/
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/* ~SDTS_XREF() */
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/************************************************************************/
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SDTS_XREF::~SDTS_XREF()
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{
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CPLFree( pszSystemName );
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CPLFree( pszDatum );
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}
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/************************************************************************/
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/* Read() */
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/* */
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/* Read the named file to initialize this structure. */
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/************************************************************************/
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int SDTS_XREF::Read( const char * pszFilename )
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{
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DDFModule oXREFFile;
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DDFRecord *poRecord;
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/* -------------------------------------------------------------------- */
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/* Open the file, and read the header. */
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/* -------------------------------------------------------------------- */
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if( !oXREFFile.Open( pszFilename ) )
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return FALSE;
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/* -------------------------------------------------------------------- */
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/* Read the first record, and verify that this is an XREF record. */
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/* -------------------------------------------------------------------- */
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poRecord = oXREFFile.ReadRecord();
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if( poRecord == NULL )
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return FALSE;
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if( poRecord->GetStringSubfield( "XREF", 0, "MODN", 0 ) == NULL )
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return FALSE;
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/* -------------------------------------------------------------------- */
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/* Read fields of interest. */
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/* -------------------------------------------------------------------- */
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CPLFree( pszSystemName );
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pszSystemName =
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CPLStrdup( poRecord->GetStringSubfield( "XREF", 0, "RSNM", 0 ) );
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CPLFree( pszDatum );
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pszDatum =
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CPLStrdup( poRecord->GetStringSubfield( "XREF", 0, "HDAT", 0 ) );
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nZone = poRecord->GetIntSubfield( "XREF", 0, "ZONE", 0 );
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return TRUE;
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}
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