gmlfeatureclass.cpp

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

/**********************************************************************
 * $Id: gmlfeatureclass.cpp,v 1.5 2003/09/11 20:01:21 warmerda Exp $
 *
 * Project:  GML Reader
 * Purpose:  Implementation of GMLFeatureClass.
 * Author:   Frank Warmerdam, [e-mail]
 *
 **********************************************************************
 * Copyright (c) 2002, 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.
 **********************************************************************
 *
 * $Log: gmlfeatureclass.cpp,v $
 * Revision 1.5  2003/09/11 20:01:21  warmerda
 * removed unused variable
 *
 * Revision 1.4  2003/05/21 03:48:35  warmerda
 * Expand tabs
 *
 * Revision 1.3  2002/03/06 20:07:35  warmerda
 * added tracking of extents, feature count and extrainfo
 *
 * Revision 1.2  2002/01/24 17:37:33  warmerda
 * added to/from XML support
 *
 * Revision 1.1  2002/01/04 19:46:30  warmerda
 * New
 *
 *
 **********************************************************************/

#include "gmlreader.h"
#include "cpl_conv.h"

/************************************************************************/
/*                          GMLFeatureClass()                           */
/************************************************************************/

GMLFeatureClass::GMLFeatureClass( const char *pszName )

{
    m_pszName = CPLStrdup( pszName );
    m_pszElementName = NULL;
    m_pszGeometryElement = NULL;
    m_nPropertyCount = 0;
    m_papoProperty = NULL;
    m_bSchemaLocked = FALSE;

    m_pszExtraInfo = NULL;
    m_bHaveExtents = FALSE;
    m_nFeatureCount = -1; // unknown
}

/************************************************************************/
/*                          ~GMLFeatureClass()                          */
/************************************************************************/

GMLFeatureClass::~GMLFeatureClass()

{
    CPLFree( m_pszName );
    CPLFree( m_pszElementName );
    CPLFree( m_pszGeometryElement );

    for( int i = 0; i < m_nPropertyCount; i++ )
        delete m_papoProperty[i];
    CPLFree( m_papoProperty );
}

/************************************************************************/
/*                           GetProperty(int)                           */
/************************************************************************/

GMLPropertyDefn *GMLFeatureClass::GetProperty( int iIndex ) const

{
    if( iIndex < 0 || iIndex >= m_nPropertyCount )
        return NULL;
    else
        return m_papoProperty[iIndex];
}

/************************************************************************/
/*                          GetPropertyIndex()                          */
/************************************************************************/

int GMLFeatureClass::GetPropertyIndex( const char *pszName ) const

{
    for( int i = 0; i < m_nPropertyCount; i++ )
        if( EQUAL(pszName,m_papoProperty[i]->GetName()) )
            return i;

    return -1;
}

/************************************************************************/
/*                            AddProperty()                             */
/************************************************************************/

int GMLFeatureClass::AddProperty( GMLPropertyDefn *poDefn )

{
    CPLAssert( GetProperty(poDefn->GetName()) == NULL );

    m_nPropertyCount++;
    m_papoProperty = (GMLPropertyDefn **)
        CPLRealloc( m_papoProperty, sizeof(void*) * m_nPropertyCount );

    m_papoProperty[m_nPropertyCount-1] = poDefn;

    return m_nPropertyCount-1;
}

/************************************************************************/
/*                           SetElementName()                           */
/************************************************************************/

void GMLFeatureClass::SetElementName( const char *pszElementName )

{
    CPLFree( m_pszElementName );
    m_pszElementName = CPLStrdup( pszElementName );
}

/************************************************************************/
/*                           GetElementName()                           */
/************************************************************************/

const char *GMLFeatureClass::GetElementName() const

{
    if( m_pszElementName == NULL )
        return m_pszName;
    else
        return m_pszElementName;
}

/************************************************************************/
/*                         SetGeometryElement()                         */
/************************************************************************/

void GMLFeatureClass::SetGeometryElement( const char *pszElement )

{
    CPLFree( m_pszGeometryElement );
    m_pszGeometryElement = CPLStrdup( pszElement );
}

/************************************************************************/
/*                          GetFeatureCount()                           */
/************************************************************************/

int GMLFeatureClass::GetFeatureCount()

{
    return m_nFeatureCount;
}

/************************************************************************/
/*                          SetFeatureCount()                           */
/************************************************************************/

void GMLFeatureClass::SetFeatureCount( int nNewCount )

{
    m_nFeatureCount = nNewCount;
}

/************************************************************************/
/*                            GetExtraInfo()                            */
/************************************************************************/

const char *GMLFeatureClass::GetExtraInfo()

{
    return m_pszExtraInfo;
}

/************************************************************************/
/*                            SetExtraInfo()                            */
/************************************************************************/

void GMLFeatureClass::SetExtraInfo( const char *pszExtraInfo )

{
    CPLFree( m_pszExtraInfo );
    m_pszExtraInfo = NULL;

    if( pszExtraInfo != NULL )
        m_pszExtraInfo = CPLStrdup( pszExtraInfo );
}

/************************************************************************/
/*                             SetExtents()                             */
/************************************************************************/

void GMLFeatureClass::SetExtents( double dfXMin, double dfXMax, 
                                  double dfYMin, double dfYMax )

{
    m_dfXMin = dfXMin;
    m_dfXMax = dfXMax;
    m_dfYMin = dfYMin;
    m_dfYMax = dfYMax;

    m_bHaveExtents = TRUE;
}

/************************************************************************/
/*                             GetExtents()                             */
/************************************************************************/

int GMLFeatureClass::GetExtents( double *pdfXMin, double *pdfXMax, 
                                 double *pdfYMin, double *pdfYMax )