>>>>>>>>>>>>>>> add below to ogrfeature.cpp (I put after DumpReadable)

/************************************************************************/
/*                            Summary()                                 */
/************************************************************************/

static void
SumGeom( OGRGeometry * poGeometry, FILE * fpOut )
{
    OGRLineString *poLine;
    OGRPolygon *poPoly;
    OGRLinearRing *poRing;
    OGRGeometryCollection *poColl;
    if( poGeometry != NULL )
    {
        fprintf( fpOut, "%s ", poGeometry->getGeometryName() );
        switch( poGeometry->getGeometryType() )
        {
          case wkbUnknown:
          case wkbNone:
            break;
          case wkbPoint:
          case wkbPoint25D:
            break;
          case wkbLineString:
          case wkbLineString25D:
            poLine = (OGRLineString*)poGeometry;
            fprintf( fpOut, "%d points\n", poLine->getNumPoints() );
            break;
          case wkbPolygon:
          case wkbPolygon25D:
            poPoly = (OGRPolygon*)poGeometry;
            poRing = poPoly->getExteriorRing();
            fprintf( fpOut, "%d points, %d inner rings\n",
                    poRing->getNumPoints(), poPoly->getNumInteriorRings() );
            break;
          case wkbMultiPoint:
          case wkbMultiPoint25D:
          case wkbMultiLineString:
          case wkbMultiLineString25D:
          case wkbMultiPolygon:
          case wkbMultiPolygon25D:
          case wkbGeometryCollection:
          case wkbGeometryCollection25D:
            poColl = (OGRGeometryCollection*)poGeometry;
            fprintf( fpOut, "%d geometries:\n", poColl->getNumGeometries() );
            for ( int ig = 0; ig < poColl->getNumGeometries(); ig++)
            {
                fprintf( fpOut, "  ");
                OGRGeometry * poChild = (OGRGeometry*)poColl->getGeometryRef(ig);
                SumGeom( poChild, fpOut );
            }
            break;
          case wkbLinearRing:
            break;
        }
        fprintf( fpOut, "\n" );
    }
}

/**
 * Summarize this feature in a human readable form.
 *
 * @param fpOut the stream to write to, such as stdout.  If NULL stdout will
 * be used. 
 */
void OGRFeature::Summary( FILE * fpOut , int bField )

{
    if( fpOut == NULL )
        fpOut = stdout;

    fprintf( fpOut, "OGRFeature(%s):%ld\n", poDefn->GetName(), GetFID() );

    if ( bField )
    {
        for( int iField = 0; iField < GetFieldCount(); iField++ )
        {
            OGRFieldDefn    *poFDefn = poDefn->GetFieldDefn(iField);

            fprintf( fpOut, "  %s (%s) = ",
                     poFDefn->GetNameRef(),
                     OGRFieldDefn::GetFieldTypeName(poFDefn->GetType()) );

            if( IsFieldSet( iField ) )
                fprintf( fpOut, "%s\n", GetFieldAsString( iField ) );
            else
                fprintf( fpOut, "(null)\n" );
        }
    }

    SumGeom( poGeometry, fpOut );
    
}

>>>>>>>>>>>>>>> add below to ogr_feature.h (I put after DumpReadable)

    void                Summary( FILE *, int bField );


>>>>>>>>>>>>>>> supporting changes in ogrinfo.cpp
41,42d40
< int     bBrief = FALSE; // RME addition for geom summary
< int     bField = FALSE; // RME addition for geom summary
129,140d126
<         /* RME extension */
<         else if( EQUAL(papszArgv[iArg],"-br") 
<                  || EQUAL(papszArgv[iArg],"-brief")  )
<         {
<             bBrief = TRUE;
<         }
<         /* RME extension */
<         else if( EQUAL(papszArgv[iArg],"-fi") 
<                  || EQUAL(papszArgv[iArg],"-fields")  )
<         {
<             bField = TRUE;
<         }
304c290
<             "               [-sql statement] [-al] [-so] [-br] [-fi] [--formats]\n"
---
>             "               [-sql statement] [-al] [-so] [--formats]\n"
390,394c376
<             /* RME extension */
<             if (bBrief)
<                 poFeature->Summary( NULL, bField );
<             else
<                 poFeature->DumpReadable( NULL );
---
>             poFeature->DumpReadable( NULL );