/****************************************************************************** * $Id: ogravclayer.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  OGR * Purpose:  Implements OGRAVCLayer class.  This is the base class for E00 *           and binary coverage layer implementations.  It provides some base *           layer operations, and methods for transforming between OGR  *           features, and the in memory structures of the AVC library. * Author:   Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 2002, Frank Warmerdam <warmerdam@pobox.com> * * 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_avc.h"#include "cpl_conv.h"#include "cpl_string.h"CPL_CVSID("$Id: ogravclayer.cpp 10646 2007-01-18 02:38:10Z warmerdam $");/************************************************************************//*                           OGRAVCLayer()                           *//************************************************************************/OGRAVCLayer::OGRAVCLayer( AVCFileType eSectionTypeIn,                           OGRAVCDataSource *poDSIn ){    eSectionType = eSectionTypeIn;        poFeatureDefn = NULL;    poDS = poDSIn;}/************************************************************************//*                          ~OGRAVCLayer()                           *//************************************************************************/OGRAVCLayer::~OGRAVCLayer(){    if( m_nFeaturesRead > 0 && poFeatureDefn != NULL )    {        CPLDebug( "AVC", "%d features read on layer '%s'.",                  (int) m_nFeaturesRead,                   poFeatureDefn->GetName() );    }    if( poFeatureDefn != NULL )        poFeatureDefn->Release();}/************************************************************************//*                           TestCapability()                           *//************************************************************************/int OGRAVCLayer::TestCapability( const char * pszCap ){    return FALSE;}/************************************************************************//*                           GetSpatialRef()                            *//************************************************************************/OGRSpatialReference *OGRAVCLayer::GetSpatialRef(){    return poDS->GetSpatialRef();}/************************************************************************//*                       SetupFeatureDefinition()                       *//************************************************************************/int OGRAVCLayer::SetupFeatureDefinition( const char *pszName ){    switch( eSectionType )    {      case AVCFileARC:        {            poFeatureDefn = new OGRFeatureDefn( pszName );            poFeatureDefn->Reference();            poFeatureDefn->SetGeomType( wkbLineString );            OGRFieldDefn	oUserId( "UserId", OFTInteger );            OGRFieldDefn	oFNode( "FNODE_", OFTInteger );            OGRFieldDefn	oTNode( "TNODE_", OFTInteger );            OGRFieldDefn	oLPoly( "LPOLY_", OFTInteger );            OGRFieldDefn	oRPoly( "RPOLY_", OFTInteger );            poFeatureDefn->AddFieldDefn( &oUserId );            poFeatureDefn->AddFieldDefn( &oFNode );            poFeatureDefn->AddFieldDefn( &oTNode );            poFeatureDefn->AddFieldDefn( &oLPoly );            poFeatureDefn->AddFieldDefn( &oRPoly );        }        return TRUE;      case AVCFilePAL:      case AVCFileRPL:        {            poFeatureDefn = new OGRFeatureDefn( pszName );            poFeatureDefn->Reference();            poFeatureDefn->SetGeomType( wkbPolygon );            OGRFieldDefn	oArcIds( "ArcIds", OFTIntegerList );            poFeatureDefn->AddFieldDefn( &oArcIds );        }        return TRUE;      case AVCFileCNT:        {            poFeatureDefn = new OGRFeatureDefn( pszName );            poFeatureDefn->Reference();            poFeatureDefn->SetGeomType( wkbPoint );            OGRFieldDefn	oLabelIds( "LabelIds", OFTIntegerList );            poFeatureDefn->AddFieldDefn( &oLabelIds );        }        return TRUE;      case AVCFileLAB:        {            poFeatureDefn = new OGRFeatureDefn( pszName );            poFeatureDefn->Reference();            poFeatureDefn->SetGeomType( wkbPoint );            OGRFieldDefn	oValueId( "ValueId", OFTInteger );            poFeatureDefn->AddFieldDefn( &oValueId );            OGRFieldDefn	oPolyId( "PolyId", OFTInteger );            poFeatureDefn->AddFieldDefn( &oPolyId );        }        return TRUE;      case AVCFileTXT:      case AVCFileTX6:        {            poFeatureDefn = new OGRFeatureDefn( pszName );            poFeatureDefn->Reference();            poFeatureDefn->SetGeomType( wkbPoint );            OGRFieldDefn	oUserId( "UserId", OFTInteger );            poFeatureDefn->AddFieldDefn( &oUserId );            OGRFieldDefn	oText( "Text", OFTString );            poFeatureDefn->AddFieldDefn( &oText );            OGRFieldDefn	oHeight( "Height", OFTReal );            poFeatureDefn->AddFieldDefn( &oHeight );            OGRFieldDefn	oLevel( "Level", OFTInteger );            poFeatureDefn->AddFieldDefn( &oLevel );        }        return TRUE;      default:        poFeatureDefn = NULL;        return FALSE;    }}/************************************************************************//*                          TranslateFeature()                          *//*                                                                      *//*      Translate the AVC structure for a feature to the the            *//*      corresponding OGR definition.  It is assumed that the passed    *//*      in feature is of a type matching the section type               *//*      established by SetupFeatureDefinition().                        *//************************************************************************/OGRFeature *OGRAVCLayer::TranslateFeature( void *pAVCFeature ){    m_nFeaturesRead++;    switch( eSectionType )    {/* ==================================================================== *//*      ARC                                                             *//* ==================================================================== */      case AVCFileARC:      {          AVCArc *psArc = (AVCArc *) pAVCFeature;/* -------------------------------------------------------------------- *//*      Create feature.                                                 *//* -------------------------------------------------------------------- */          OGRFeature *poOGRFeature = new OGRFeature( GetLayerDefn() );          poOGRFeature->SetFID( psArc->nArcId );/* -------------------------------------------------------------------- *//*      Apply the line geometry.                                        *//* -------------------------------------------------------------------- */          OGRLineString *poLine = new OGRLineString();          poLine->setNumPoints( psArc->numVertices );          for( int iVert = 0; iVert < psArc->numVertices; iVert++ )              poLine->setPoint( iVert,                                 psArc->pasVertices[iVert].x,                                 psArc->pasVertices[iVert].y );          poOGRFeature->SetGeometryDirectly( poLine );/* -------------------------------------------------------------------- *//*      Apply attributes.                                               *//* -------------------------------------------------------------------- */          poOGRFeature->SetField( 0, psArc->nUserId );          poOGRFeature->SetField( 1, psArc->nFNode );          poOGRFeature->SetField( 2, psArc->nTNode );          poOGRFeature->SetField( 3, psArc->nLPoly );          poOGRFeature->SetField( 4, psArc->nRPoly );          return poOGRFeature;      }/* ==================================================================== *//*      PAL (Polygon)                                                   *//*      RPL (Region)                                                    *//* ==================================================================== */      case AVCFilePAL:      case AVCFileRPL:      {          AVCPal *psPAL = (AVCPal *) pAVCFeature;/* -------------------------------------------------------------------- *//*      Create feature.                                                 *//* -------------------------------------------------------------------- */          OGRFeature *poOGRFeature = new OGRFeature( GetLayerDefn() );          poOGRFeature->SetFID( psPAL->nPolyId );/* -------------------------------------------------------------------- *//*      Apply attributes.                                               *//* -------------------------------------------------------------------- */          // Setup ArcId list.           int	       *panArcs, i;          panArcs = (int *) CPLMalloc(sizeof(int) * psPAL->numArcs );          for( i = 0; i < psPAL->numArcs; i++ )              panArcs[i] = psPAL->pasArcs[i].nArcId;          poOGRFeature->SetField( 0, psPAL->numArcs, panArcs );          CPLFree( panArcs );          return poOGRFeature;      }/* ==================================================================== *//*      CNT (Centroid)                                                  *//* ==================================================================== */      case AVCFileCNT:      {          AVCCnt *psCNT = (AVCCnt *) pAVCFeature;/* -------------------------------------------------------------------- *//*      Create feature.                                                 *//* -------------------------------------------------------------------- */          OGRFeature *poOGRFeature = new OGRFeature( GetLayerDefn() );          poOGRFeature->SetFID( psCNT->nPolyId );/* -------------------------------------------------------------------- *//*      Apply Geometry                                                  *//* -------------------------------------------------------------------- */          poOGRFeature->SetGeometryDirectly(               new OGRPoint( psCNT->sCoord.x, psCNT->sCoord.y ) );/* -------------------------------------------------------------------- *//*      Apply attributes.                                               *//* -------------------------------------------------------------------- */          poOGRFeature->SetField( 0, psCNT->numLabels, psCNT->panLabelIds );          return poOGRFeature;      }/* ==================================================================== *//*      LAB (Label)                                                     *//* ==================================================================== */      case AVCFileLAB:      {          AVCLab *psLAB = (AVCLab *) pAVCFeature;