///////////////////////////////////////////////////////////////////////////////
// Eine MapInfodatei öffnen
HRESULT CMiTabDatasource::OpenFile(const char *pszNewName, bool fUpdate, bool fTestOpen)
{
_ASSERTE(NULL != pszNewName);
if (NULL == pszNewName)
return E_POINTER;
mitab_handle hMIF = NULL;
#if defined(_READWRITE)
if (fUpdate)
hMIF = mitab_c_create(pszNewName, NULL, NULL, 0.0, 0.0, 0.0, 0.0);
else
#endif // defined(_READWRITE)
hMIF = mitab_c_open (pszNewName);
if (NULL == hMIF)
return S_FALSE;
// Extract the basename of the file.
COM_TRY {
// Create the layer object and add layer to data source layer list.
os_path path (pszNewName);
m_Layers.push_back (new CMiTabLayer(path.base().c_str(), hMIF, fUpdate));
} COM_CATCH;
return S_OK;
}
static void ReportFile( const char * pszFilename )
{
mitab_handle dataset;
int feature_id, num_fields;
dataset = mitab_c_open( pszFilename );
if( dataset == NULL )
{
printf( "mitab_c_open(%s) failed.\n%s\n",
pszFilename, mitab_c_getlasterrormsg() );
exit( 1 );
}
num_fields = mitab_c_get_field_count(dataset);
for( feature_id = mitab_c_next_feature_id(dataset,-1);
feature_id != -1;
feature_id = mitab_c_next_feature_id(dataset,feature_id) )
{
mitab_feature feature;
int feature_type, num_parts, partno, pointno, fieldno;
/* -------------------------------------------------------------------- */
/* Read next feature object */
/* -------------------------------------------------------------------- */
feature = mitab_c_read_feature( dataset, feature_id );
if( feature == NULL )
{
printf( "Failed to read feature %d.\n%s\n",
feature_id, mitab_c_getlasterrormsg() );
exit( 1 );
}
feature_type = mitab_c_get_type(feature);
num_parts = mitab_c_get_parts(feature);
printf( "Read feature %d: type=%d, num_parts=%d.\n",
feature_id, feature_type, num_parts );
/* -------------------------------------------------------------------- */
/* Dump the feature attributes... */
/* -------------------------------------------------------------------- */
for(fieldno = 0; fieldno < num_fields; fieldno++)
{
printf(" %s = %s\n",
mitab_c_get_field_name(dataset, fieldno),
mitab_c_get_field_as_string(feature, fieldno) );
}
/* -------------------------------------------------------------------- */
/* ... and coordinates. */
/* In real applications, we would probably want to handle each */
/* object type differently but we won't do it here. */
/* -------------------------------------------------------------------- */
for(partno = 0; partno < num_parts; partno++)
{
int num_points = mitab_c_get_vertex_count(feature, partno);
if (num_parts > 1)
printf(" Part no %d:\n", partno);
for(pointno = 0; pointno < num_points; pointno++)
{
double dX, dY;
dX = mitab_c_get_vertex_x(feature, partno, pointno);
dY = mitab_c_get_vertex_y(feature, partno, pointno);
printf(" %.16g %.16g\n", dX, dY);
}
}
mitab_c_destroy_feature( feature );
}
mitab_c_close( dataset );
}
