Thanks Chris,

On Nov 10, 2011, at 3:09 PM, Chris Marshall wrote:

> Maybe this img2tif utility is relevant?
> http://home.gdal.org/projects/imagine/hfa_index.html


I am already using gdal to directly read the .img files, so that is not an 
issue. The reason I want to read those files in PDL is so I can do query and 
analysis more than what gdal can do. For example, gdal can query the value at a 
location (a specific x,y location), but I'd like to query an area (a polygon), 
and create summary stats for that area. I thinking PDL can give me more 
flexibility.

 
> 
> Otherwise, you can cook up a way to read the files from
> the file format information (if it is available).  Another possibility
> is to use another program to convert the files to something that
> is already directly readable in PDL.


I'd rather not. In other words, I already have ERDAS files, and can read them 
directly with gdal without further manipulation. I'd rather not inject an extra 
step in between. Besides the burden of an extra step, I would probably lose 
information when converting it from Imagine to something like tiff.


> 
> --Chris
> 
> On Thu, Nov 10, 2011 at 3:36 PM, Puneet Kishor <[email protected]> wrote:
>> Is there a way I can read in .img files from ERDAS using PDL?
>> 
>> --
>> Puneet Kishor
>> 
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