ogrdgndriver.cpp

GIS系统支持库Geospatial Data Abstraction Library代码.GDAL is a translator library for raster geospatial dat

/******************************************************************************
 * $Id: ogrdgndriver.cpp,v 1.5 2003/05/21 03:42:01 warmerda Exp $
 *
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  Implements OGRDGNDriver class.
 * Author:   Frank Warmerdam, [e-mail]
 *
 ******************************************************************************
 * Copyright (c) 2000, Frank Warmerdam ([e-mail])
 *
 * 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.
 ******************************************************************************
 *
 * $Log: ogrdgndriver.cpp,v $
 * Revision 1.5  2003/05/21 03:42:01  warmerda
 * Expanded tabs
 *
 * Revision 1.4  2002/11/11 20:34:22  warmerda
 * added create support
 *
 * Revision 1.3  2001/07/18 04:55:16  warmerda
 * added CPL_CSVID
 *
 * Revision 1.2  2000/12/28 21:27:11  warmerda
 * updated email address
 *
 * Revision 1.1  2000/11/28 19:03:47  warmerda
 * New
 *
 */

#include "ogr_dgn.h"
#include "cpl_conv.h"

CPL_CVSID("$Id: ogrdgndriver.cpp,v 1.5 2003/05/21 03:42:01 warmerda Exp $");

/************************************************************************/
/*                          ~OGRDGNDriver()                             */
/************************************************************************/

OGRDGNDriver::~OGRDGNDriver()

{
}

/************************************************************************/
/*                              GetName()                               */
/************************************************************************/

const char *OGRDGNDriver::GetName()

{
    return "DGN";
}

/************************************************************************/
/*                                Open()                                */
/************************************************************************/

OGRDataSource *OGRDGNDriver::Open( const char * pszFilename, int bUpdate )

{
    OGRDGNDataSource    *poDS;

    poDS = new OGRDGNDataSource();

    if( !poDS->Open( pszFilename, TRUE, bUpdate )
        || poDS->GetLayerCount() == 0 )
    {
        delete poDS;
        return NULL;
    }
    else
        return poDS;
}

/************************************************************************/
/*                          CreateDataSource()                          */
/************************************************************************/

OGRDataSource *OGRDGNDriver::CreateDataSource( const char * pszName,
                                               char **papszOptions )

{
/* -------------------------------------------------------------------- */
/*      Return a new OGRDataSource()                                    */
/* -------------------------------------------------------------------- */
    OGRDGNDataSource    *poDS = NULL;

    poDS = new OGRDGNDataSource();
    
    if( !poDS->PreCreate( pszName, papszOptions ) )
    {
        delete poDS;
        return NULL;
    }
    else
        return poDS;
}

/************************************************************************/
/*                           TestCapability()                           */
/************************************************************************/

int OGRDGNDriver::TestCapability( const char * pszCap )

{
    if( EQUAL(pszCap,ODrCCreateDataSource) )
        return TRUE;
    else
        return FALSE;
}

/************************************************************************/
/*                          RegisterOGRDGN()                            */
/************************************************************************/

void RegisterOGRDGN()

{
    OGRSFDriverRegistrar::GetRegistrar()->RegisterDriver( new OGRDGNDriver );
}