[Gdal-dev] HFA Driver behavior when spill file is present

[Ozy Sjahputera]

Hi All,

I just noticed a strange behavior of GDAL HFA driver.  Suppose you have 
an HFA file that is over 2GB in size.  This causes the creation of the 
spill (.ige) file. When you try to use Create() in GDALDriver class 
using the same name of the existing HFA file, instead of overwriting the 
pre-existing file GDAL simply appends more data to the spill file.  So 
you will end up with larger .ige file.  If I have a repeat process that 
uses the same filename, the .ige grows along with the process and it 
eats up the disk space unnecessarily, unless I specifically remove the 
old HFA file before creating a new one.

Is there a way for me to just overwrite the old HFA image file when I 
create a new one? 

Thanks.


Ozy