Packbit compression

May 9, 2011 at 5:01 PM
I am trying to load a GEOTiff produced by the FAA but am having trouble.  The image I am trying to load is in a zip file located at http://aeronav.faa.com/enroute/05-05-2011/ENR_L17.zip

For some reason, the image seems to load fine, but it never displays, just an hourglass.  The FAA changed the way it created this file.  Is there a setting in the MapWinGIS.Image that will help?

               Dim img As New MapWinGIS.Image
               img.UseTransparencyColor = False
               img.Open(LocalDir & "\" & FileName, MapWinGIS.ImageType.USE_FILE_EXTENSION)
               '
               myChart.RemoveAllLayers()
               myChart.DoubleBuffer = True
               myChart.CursorMode = MapWinGIS.tkCursorMode.cmPan
               _ChartLayoutS(theChart).ChartHandle = myChart.AddLayer(img, True)