private void SetDataProviderByFile(string fname, params string[] options)
{
try
{
_dataProvider = GeoDataDriver.Open(fname, enumDataProviderAccess.ReadOnly, options) as IRasterDataProvider;
_dataProviderCopy = GeoDataDriver.Open(fname, enumDataProviderAccess.ReadOnly, options) as IRasterDataProvider;
CheckDataProvider();
_width = _dataProviderCopy.Width;
_heigth = _dataProviderCopy.Height;
_bandCount = _dataProviderCopy.BandCount;
_readPixelHelper = new ReadPixelHelper(_dataProviderCopy);
}
catch (Exception ex)
{
throw new CreateDataProviderFailedByFileName(fname, ex);
}
if (_dataProvider == null)
{
throw new CreateDataProviderFailedByFileName(fname);
}
}
public void Dispose()
{
if (_readPixelHelper != null)
{
_readPixelHelper.Dispose();
_readPixelHelper = null;
}
if (_tileBitmapProvider != null)
{
_tileBitmapProvider.Dispose();
_tileBitmapProvider = null;
}
if (_bitmap != null)
{
_bitmap.Dispose();
_bitmap = null;
}
if (_dataProviderCopy != null)
{
IUpdateCoordEnvelope u = _dataProviderCopy as IUpdateCoordEnvelope;
if (u != null)
{
u.IsStoreHeaderChanged = false;
}
_dataProviderCopy.Dispose();
_dataProviderCopy = null;
}
if (_dataProvider != null)
{
_dataProvider.Dispose();
_dataProvider = null;
}
if (_firstBitmap != null)
{
_firstBitmap.Dispose();
_firstBitmap = null;
}
_envelope = null;
_canvas = null;
}
