/****************************************************************************** * $Id: ogrs57datasource.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  S-57 Translator * Purpose:  Implements OGRS57DataSource class * 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_s57.h"#include "cpl_conv.h"#include "cpl_string.h"CPL_CVSID("$Id: ogrs57datasource.cpp 10646 2007-01-18 02:38:10Z warmerdam $");/************************************************************************//*                          OGRS57DataSource()                          *//************************************************************************/OGRS57DataSource::OGRS57DataSource(){    nLayers = 0;    papoLayers = NULL;    nModules = 0;    papoModules = NULL;    poWriter = NULL;    pszName = NULL;    poSpatialRef = new OGRSpatialReference();    poSpatialRef->SetWellKnownGeogCS( "WGS84" );        bExtentsSet = FALSE;/* -------------------------------------------------------------------- *//*      Allow initialization of options from the environment.           *//* -------------------------------------------------------------------- */    papszOptions = NULL;    if( CPLGetConfigOption("OGR_S57_OPTIONS",NULL) != NULL )    {        papszOptions =             CSLTokenizeStringComplex( CPLGetConfigOption("OGR_S57_OPTIONS",""),                                      ",", FALSE, FALSE );    }}/************************************************************************//*                         ~OGRS57DataSource()                          *//************************************************************************/OGRS57DataSource::~OGRS57DataSource(){    int         i;    for( i = 0; i < nLayers; i++ )        delete papoLayers[i];    CPLFree( papoLayers );    for( i = 0; i < nModules; i++ )        delete papoModules[i];    CPLFree( papoModules );    CPLFree( pszName );    CSLDestroy( papszOptions );    poSpatialRef->Release();    if( poWriter != NULL )    {        poWriter->Close();        delete poWriter;    }}/************************************************************************//*                           SetOptionList()                            *//************************************************************************/void OGRS57DataSource::SetOptionList( char ** papszNewOptions ){    CSLDestroy( papszOptions );    papszOptions = CSLDuplicate( papszNewOptions );}/************************************************************************//*                             GetOption()                              *//************************************************************************/const char *OGRS57DataSource::GetOption( const char * pszOption ){    return CSLFetchNameValue( papszOptions, pszOption );}/************************************************************************//*                           TestCapability()                           *//************************************************************************/int OGRS57DataSource::TestCapability( const char * ){    return FALSE;}/************************************************************************//*                                Open()                                *//************************************************************************/int OGRS57DataSource::Open( const char * pszFilename, int bTestOpen ){    int         iModule;        pszName = CPLStrdup( pszFilename );    /* -------------------------------------------------------------------- *//*      Check a few bits of the header to see if it looks like an       *//*      S57 file (really, if it looks like an ISO8211 file).            *//* -------------------------------------------------------------------- */    if( bTestOpen )    {        FILE    *fp;        char    pachLeader[10];        fp = VSIFOpenL( pszFilename, "rb" );        if( fp == NULL )            return FALSE;                if( VSIFReadL( pachLeader, 1, 10, fp ) != 10            || (pachLeader[5] != '1' && pachLeader[5] != '2'                && pachLeader[5] != '3' )            || pachLeader[6] != 'L'            || (pachLeader[8] != '1' && pachLeader[8] != ' ') )        {            VSIFCloseL( fp );            return FALSE;        }        VSIFCloseL( fp );    }/* -------------------------------------------------------------------- *//*      Setup reader options.                                           *//* -------------------------------------------------------------------- */    char **papszReaderOptions = NULL;    S57Reader   *poModule;    poModule = new S57Reader( pszFilename );    papszReaderOptions = CSLSetNameValue(papszReaderOptions,                                          S57O_LNAM_REFS, "ON" );    if( GetOption(S57O_UPDATES) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_UPDATES,                              GetOption(S57O_UPDATES));                                                  if( GetOption(S57O_SPLIT_MULTIPOINT) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_SPLIT_MULTIPOINT,                             GetOption(S57O_SPLIT_MULTIPOINT) );                                                  if( GetOption(S57O_ADD_SOUNDG_DEPTH) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_ADD_SOUNDG_DEPTH,                             GetOption(S57O_ADD_SOUNDG_DEPTH));                                                  if( GetOption(S57O_PRESERVE_EMPTY_NUMBERS) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_PRESERVE_EMPTY_NUMBERS,                             GetOption(S57O_PRESERVE_EMPTY_NUMBERS) );                                                  if( GetOption(S57O_RETURN_PRIMITIVES) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_RETURN_PRIMITIVES,                             GetOption(S57O_RETURN_PRIMITIVES) );                                                  if( GetOption(S57O_RETURN_LINKAGES) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_RETURN_LINKAGES,                             GetOption(S57O_RETURN_LINKAGES) );                                                  if( GetOption(S57O_RETURN_DSID) != NULL )        papszReaderOptions =             CSLSetNameValue( papszReaderOptions, S57O_RETURN_DSID,                             GetOption(S57O_RETURN_DSID) );                                                  poModule->SetOptions( papszReaderOptions );    CSLDestroy( papszReaderOptions );/* -------------------------------------------------------------------- *//*      Try opening.                                                    *//*                                                                      *//*      Eventually this should check for catalogs, and if found         *//*      instantiate a whole series of modules.                          *//* -------------------------------------------------------------------- */    if( !poModule->Open( bTestOpen ) )    {        delete poModule;        return FALSE;    }    nModules = 1;    papoModules = (S57Reader **) CPLMalloc(sizeof(void*));    papoModules[0] = poModule;    /* -------------------------------------------------------------------- *//*      Add the header layers if they are called for.                   *//* -------------------------------------------------------------------- */    if( GetOption( S57O_RETURN_DSID ) == NULL         || CSLTestBoolean(GetOption( S57O_RETURN_DSID )) )    {        OGRFeatureDefn  *poDefn;        poDefn = S57GenerateDSIDFeatureDefn();        AddLayer( new OGRS57Layer( this, poDefn ) );    }/* -------------------------------------------------------------------- *//*      Add the primitive layers if they are called for.                *//* -------------------------------------------------------------------- */    if( GetOption( S57O_RETURN_PRIMITIVES ) != NULL )    {        OGRFeatureDefn  *poDefn;        poDefn = S57GenerateVectorPrimitiveFeatureDefn( RCNM_VI, poModule->GetOptionFlags());        AddLayer( new OGRS57Layer( this, poDefn ) );        poDefn = S57GenerateVectorPrimitiveFeatureDefn( RCNM_VC, poModule->GetOptionFlags());        AddLayer( new OGRS57Layer( this, poDefn ) );        poDefn = S57GenerateVectorPrimitiveFeatureDefn( RCNM_VE, poModule->GetOptionFlags());