/****************************************************************************** * $Id: tigerkeyfeatures.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  TIGER/Line Translator * Purpose:  Implements TigerKeyFeatures, providing access to .RT9 files. * Author:   Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 1999, Frank Warmerdam * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ****************************************************************************/#include "ogr_tiger.h"#include "cpl_conv.h"CPL_CVSID("$Id: tigerkeyfeatures.cpp 10646 2007-01-18 02:38:10Z warmerdam $");#define FILE_CODE "9"static TigerFieldInfo rt9_fields[] = {  // fieldname    fmt  type  OFTType      beg  end  len  bDefine bSet bWrite  { "MODULE",     ' ', ' ', OFTString,     0,   0,   8,       1,   0,     0 },  { "FILE",       'L', 'N', OFTString,     6,  10,   5,       1,   1,     1 },  { "STATE",      'L', 'N', OFTInteger,    6,   7,   2,       1,   1,     1 },  { "COUNTY",     'L', 'N', OFTInteger,    8,  10,   3,       1,   1,     1 },  { "CENID",      'L', 'A', OFTString,    11,  15,   5,       1,   1,     1 },  { "POLYID",     'R', 'N', OFTInteger,   16,  25,  10,       1,   1,     1 },  { "SOURCE",     'L', 'A', OFTString,    26,  26,   1,       1,   1,     1 },  { "CFCC",       'L', 'A', OFTString,    27,  29,   3,       1,   1,     1 },  { "KGLNAME",    'L', 'A', OFTString,    30,  59,  30,       1,   1,     1 },  { "KGLADD",     'R', 'A', OFTString,    60,  70,  11,       1,   1,     1 },  { "KGLZIP",     'L', 'N', OFTInteger,   71,  75,   5,       1,   1,     1 },  { "KGLZIP4",    'L', 'N', OFTInteger,   76,  79,   4,       1,   1,     1 },  { "FEAT",       'R', 'N', OFTInteger,   80,  87,   8,       1,   1,     1 }};static TigerRecordInfo rt9_info =  {    rt9_fields,    sizeof(rt9_fields) / sizeof(TigerFieldInfo),    88  };/************************************************************************//*                         TigerKeyFeatures()                         *//************************************************************************/TigerKeyFeatures::TigerKeyFeatures( OGRTigerDataSource * poDSIn,                                  const char * pszPrototypeModule ){    OGRFieldDefn        oField("",OFTInteger);    poDS = poDSIn;    poFeatureDefn = new OGRFeatureDefn( "KeyFeatures" );    poFeatureDefn->Reference();    poFeatureDefn->SetGeomType( wkbNone );    psRT9Info = &rt9_info;    /* -------------------------------------------------------------------- */    /*      Fields from type 9 record.                                      */    /* -------------------------------------------------------------------- */    AddFieldDefns( psRT9Info, poFeatureDefn );}/************************************************************************//*                        ~TigerKeyFeatures()                         *//************************************************************************/TigerKeyFeatures::~TigerKeyFeatures(){}/************************************************************************//*                             SetModule()                              *//************************************************************************/int TigerKeyFeatures::SetModule( const char * pszModule ){    if( !OpenFile( pszModule, FILE_CODE ) )        return FALSE;    EstablishFeatureCount();        return TRUE;}/************************************************************************//*                             GetFeature()                             *//************************************************************************/OGRFeature *TigerKeyFeatures::GetFeature( int nRecordId ){    char        achRecord[OGR_TIGER_RECBUF_LEN];    if( nRecordId < 0 || nRecordId >= nFeatures )    {        CPLError( CE_Failure, CPLE_FileIO,                  "Request for out-of-range feature %d of %s9",                  nRecordId, pszModule );        return NULL;    }    /* -------------------------------------------------------------------- */    /*      Read the raw record data from the file.                         */    /* -------------------------------------------------------------------- */    if( fpPrimary == NULL )        return NULL;    if( VSIFSeek( fpPrimary, nRecordId * nRecordLength, SEEK_SET ) != 0 )    {        CPLError( CE_Failure, CPLE_FileIO,                  "Failed to seek to %d of %s9",                  nRecordId * nRecordLength, pszModule );        return NULL;    }    if( VSIFRead( achRecord, psRT9Info->nRecordLength, 1, fpPrimary ) != 1 )    {        CPLError( CE_Failure, CPLE_FileIO,                  "Failed to read record %d of %s9",                  nRecordId, pszModule );        return NULL;    }    /* -------------------------------------------------------------------- */    /*      Set fields.                                                     */    /* -------------------------------------------------------------------- */    OGRFeature  *poFeature = new OGRFeature( poFeatureDefn );    SetFields( psRT9Info, poFeature, achRecord );    return poFeature;}/************************************************************************//*                           CreateFeature()                            *//************************************************************************/OGRErr TigerKeyFeatures::CreateFeature( OGRFeature *poFeature ){    char        szRecord[OGR_TIGER_RECBUF_LEN];    if( !SetWriteModule( FILE_CODE, psRT9Info->nRecordLength+2, poFeature ) )        return OGRERR_FAILURE;    memset( szRecord, ' ', psRT9Info->nRecordLength );    WriteFields( psRT9Info, poFeature, szRecord );    WriteRecord( szRecord, psRT9Info->nRecordLength, FILE_CODE );    return OGRERR_NONE;}