ogrociwritablelayer.cpp

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

/******************************************************************************
 * $Id: ogrociwritablelayer.cpp,v 1.4 2003/09/17 16:36:34 warmerda Exp $
 *
 * Project:  Oracle Spatial Driver
 * Purpose:  Implementation of the OGROCIWritableLayer class.  This provides
 *           some services for converting OGRGeometries into Oracle structures
 *           that is shared between OGROCITableLayer and OGROCILoaderLayer.
 * Author:   Frank Warmerdam, [e-mail]
 *
 ******************************************************************************
 * Copyright (c) 2002, 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: ogrociwritablelayer.cpp,v $
 * Revision 1.4  2003/09/17 16:36:34  warmerda
 * fixed setting of dimension for point objects
 *
 * Revision 1.3  2003/08/05 01:59:09  warmerda
 * Default unsized string fields to 2047 instead of 4000 to avoid problem reading
 * fields of width 2048 or more as reported by Ned.
 *
 * Revision 1.2  2003/05/21 03:54:01  warmerda
 * expand tabs
 *
 * Revision 1.1  2003/04/04 06:17:47  warmerda
 * New
 *
 */

#include "ogr_oci.h"
#include "cpl_conv.h"
#include "cpl_string.h"

CPL_CVSID("$Id: ogrociwritablelayer.cpp,v 1.4 2003/09/17 16:36:34 warmerda Exp $");

/************************************************************************/
/*                        OGROCIWritableLayer()                         */
/************************************************************************/

OGROCIWritableLayer::OGROCIWritableLayer()

{
    nDimension = 3;
    nSRID = -1;

    nOrdinalCount = 0;
    nOrdinalMax = 0;
    padfOrdinals = NULL;

    nElemInfoCount = 0;
    nElemInfoMax = 0;
    panElemInfo = NULL;

    bLaunderColumnNames = TRUE;
    bTruncationReported = FALSE;
    nSRID = -1;
    poSRS = NULL;

    papszOptions = NULL;
}

/************************************************************************/
/*                        ~OGROCIWritableLayer()                        */
/************************************************************************/

OGROCIWritableLayer::~OGROCIWritableLayer()

{
    CPLFree( padfOrdinals );
    CPLFree( panElemInfo );

    CSLDestroy( papszOptions );
}

/************************************************************************/
/*                            PushOrdinal()                             */
/************************************************************************/

void OGROCIWritableLayer::PushOrdinal( double dfOrd )

{
    if( nOrdinalCount == nOrdinalMax )
    {
        nOrdinalMax = nOrdinalMax * 2 + 100;
        padfOrdinals = (double *) CPLRealloc(padfOrdinals, 
                                             sizeof(double) * nOrdinalMax);
    }
    
    padfOrdinals[nOrdinalCount++] = dfOrd;
}

/************************************************************************/
/*                            PushElemInfo()                            */
/************************************************************************/

void OGROCIWritableLayer::PushElemInfo( int nOffset, int nEType, int nInterp )

{
    if( nElemInfoCount+3 >= nElemInfoMax )
    {
        nElemInfoMax = nElemInfoMax * 2 + 100;
        panElemInfo = (int *) CPLRealloc(panElemInfo,sizeof(int)*nElemInfoMax);
    }
    
    panElemInfo[nElemInfoCount++] = nOffset;
    panElemInfo[nElemInfoCount++] = nEType;
    panElemInfo[nElemInfoCount++] = nInterp;
}

/************************************************************************/
/*                       TranslateElementGroup()                        */
/*                                                                      */
/*      Append one or more element groups to the existing element       */
/*      info and ordinates lists for the passed geometry.               */
/************************************************************************/

OGRErr 
OGROCIWritableLayer::TranslateElementGroup( OGRGeometry *poGeometry )

{
    switch( wkbFlatten(poGeometry->getGeometryType()) )
    {
      case wkbPoint:
      {
          OGRPoint *poPoint = (OGRPoint *) poGeometry;

          PushElemInfo( nOrdinalCount+1, 1, 1 );

          PushOrdinal( poPoint->getX() );
          PushOrdinal( poPoint->getY() );
          if( nDimension == 3 )
              PushOrdinal( poPoint->getZ() );

          return OGRERR_NONE;
      }

      case wkbLineString:
      {
          OGRLineString *poLine = (OGRLineString *) poGeometry;
          int  iVert;
          
          PushElemInfo( nOrdinalCount+1, 2, 1 );

          for( iVert = 0; iVert < poLine->getNumPoints(); iVert++ )
          {
              PushOrdinal( poLine->getX(iVert) );
              PushOrdinal( poLine->getY(iVert) );
              if( nDimension == 3 )
                  PushOrdinal( poLine->getZ(iVert) );
          }
          return OGRERR_NONE;
      }

      case wkbPolygon:
      {
          OGRPolygon *poPoly = (OGRPolygon *) poGeometry;
          int iRing;

          for( iRing = -1; iRing < poPoly->getNumInteriorRings(); iRing++ )
          {
              OGRLinearRing *poRing;
              int            iVert;

              if( iRing == -1 )
                  poRing = poPoly->getExteriorRing();
              else
                  poRing = poPoly->getInteriorRing(iRing);

              if( iRing == -1 )
                  PushElemInfo( nOrdinalCount+1, 1003, 1 );
              else
                  PushElemInfo( nOrdinalCount+1, 2003, 1 );

              if( (iRing == -1 && poRing->isClockwise())
                  || (iRing != -1 && !poRing->isClockwise()) )
              {
                  for( iVert = poRing->getNumPoints()-1; iVert >= 0; iVert-- )
                  {
                      PushOrdinal( poRing->getX(iVert) );
                      PushOrdinal( poRing->getY(iVert) );
                      if( nDimension == 3 )
                          PushOrdinal( poRing->getZ(iVert) );
                  }
              }
              else
              {
                  for( iVert = 0; iVert < poRing->getNumPoints(); iVert++ )
                  {
                      PushOrdinal( poRing->getX(iVert) );
                      PushOrdinal( poRing->getY(iVert) );
                      if( nDimension == 3 )
                          PushOrdinal( poRing->getZ(iVert) );
                  }
              }
          }

          return OGRERR_NONE;
      }

      default:
      {
          return OGRERR_FAILURE;
      }
    }
}

/************************************************************************/
/*                          ReportTruncation()                          */
/************************************************************************/

void OGROCIWritableLayer::ReportTruncation( OGRFieldDefn * psFldDefn )

{
    if( bTruncationReported )
        return;

    CPLError( CE_Warning, CPLE_AppDefined,
              "The value for the field %s is being truncated to fit the\n"
              "declared width/precision of the field.  No more truncations\n"
              "for table %s will be reported.", 
              psFldDefn->GetNameRef(), poFeatureDefn->GetName() );

    bTruncationReported = TRUE;
}

/************************************************************************/
/*                             SetOptions()                             */
/*                                                                      */
/*      Set layer creation or other options.                            */
/************************************************************************/

void OGROCIWritableLayer::SetOptions( char **papszOptionsIn )

{
    CSLDestroy( papszOptions );
    papszOptions = CSLDuplicate( papszOptionsIn );
}