91 строка
3.8 KiB
C++
91 строка
3.8 KiB
C++
/******************************************************************************
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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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/************************************************************************/
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/* SDTS_XREF() */
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/************************************************************************/
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SDTS_XREF::SDTS_XREF()
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: pszSystemName(CPLStrdup("")), pszDatum(CPLStrdup("")), nZone(0)
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{
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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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/* -------------------------------------------------------------------- */
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/* Open the file, and read the header. */
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/* -------------------------------------------------------------------- */
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DDFModule oXREFFile;
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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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DDFRecord *poRecord = oXREFFile.ReadRecord();
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if (poRecord == nullptr)
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return FALSE;
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if (poRecord->GetStringSubfield("XREF", 0, "MODN", 0) == nullptr)
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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 = 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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