C++ (Cpp) OGRESRIJSONGetGeometryType Examples

Example #1

File: ogresrijsonreader.cpp Project: koordinates/gdal

void OGRESRIJSONReader::ReadLayers( OGRGeoJSONDataSource* poDS,
                                    GeoJSONSourceType eSourceType )
{
    CPLAssert( nullptr == poLayer_ );

    if( nullptr == poGJObject_ )
    {
        CPLDebug( "ESRIJSON",
                  "Missing parsed ESRIJSON data. Forgot to call Parse()?" );
        return;
    }

    OGRSpatialReference* poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );

    const char* pszName = "ESRIJSON";
    if( eSourceType == eGeoJSONSourceFile )
    {
        pszName = poDS->GetDescription();
        if( STARTS_WITH_CI(pszName, "ESRIJSON:") )
            pszName += strlen("ESRIJSON:");
        pszName = CPLGetBasename(pszName);
    }

    auto eGeomType = OGRESRIJSONGetGeometryType(poGJObject_);
    if( eGeomType == wkbNone && poSRS != nullptr )
    {
        eGeomType = wkbUnknown;
    }

    poLayer_ = new OGRGeoJSONLayer( pszName, poSRS,
                                    eGeomType,
                                    poDS, nullptr );
    if( poSRS != nullptr )
        poSRS->Release();

    if( !GenerateLayerDefn() )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Layer schema generation failed." );

        delete poLayer_;
        return;
    }

    OGRGeoJSONLayer *poThisLayer = ReadFeatureCollection( poGJObject_ );
    if( poThisLayer == nullptr )
    {
        delete poLayer_;
        return;
    }

    CPLErrorReset();

    poLayer_->DetectGeometryType();
    poDS->AddLayer(poLayer_);
}

Example #2

File: ogresrijsonreader.cpp Project: afarnham/gdal

OGRGeoJSONLayer* OGRESRIJSONReader::ReadLayer( const char* pszName,
                                                OGRGeoJSONDataSource* poDS )
{
    CPLAssert( NULL == poLayer_ );

    if( NULL == poGJObject_ )
    {
        CPLDebug( "ESRIJSON",
                  "Missing parset ESRIJSON data. Forgot to call Parse()?" );
        return NULL;
    }
        
    poLayer_ = new OGRGeoJSONLayer( pszName, NULL,
                                    OGRESRIJSONGetGeometryType(poGJObject_),
                                    poDS );

    if( !GenerateLayerDefn() )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
            "Layer schema generation failed." );

        delete poLayer_;
        return NULL;
    }

    OGRGeoJSONLayer* poThisLayer = NULL;
    poThisLayer = ReadFeatureCollection( poGJObject_ );
    if (poThisLayer == NULL)
    {
        delete poLayer_;
        return NULL;
    }

    OGRSpatialReference* poSRS = NULL;
    poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );
    if (poSRS != NULL )
    {
        poLayer_->SetSpatialRef( poSRS );
        delete poSRS;
    }

    return poLayer_;
}

Example #3

File: ogresrijsonreader.cpp Project: garnertb/gdal

void OGRESRIJSONReader::ReadLayers( OGRGeoJSONDataSource* poDS )
{
    CPLAssert( NULL == poLayer_ );

    if( NULL == poGJObject_ )
    {
        CPLDebug( "ESRIJSON",
                  "Missing parset ESRIJSON data. Forgot to call Parse()?" );
        return;
    }

    OGRSpatialReference* poSRS = NULL;
    poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );

    poLayer_ = new OGRGeoJSONLayer( OGRGeoJSONLayer::DefaultName, poSRS,
                                    OGRESRIJSONGetGeometryType(poGJObject_),
                                    poDS );
    if( poSRS != NULL )
        poSRS->Release();

    if( !GenerateLayerDefn() )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
            "Layer schema generation failed." );

        delete poLayer_;
        return;
    }

    OGRGeoJSONLayer* poThisLayer = NULL;
    poThisLayer = ReadFeatureCollection( poGJObject_ );
    if (poThisLayer == NULL)
    {
        delete poLayer_;
        return;
    }

    CPLErrorReset();

    poDS->AddLayer(poLayer_);
}