[Gdal-dev] Tiff on the CD

[Ed McNierney]

I think you have two choices:

If you need to have the user run the software so the data is read from
CD, your performance won't be very fast anyway and I wouldn't worry
about overviews.

If you intend to have the user install the data from CD on to a hard
disk, make the creation of overviews part of the installation process.

	- Ed


Ed McNierney
President and Chief Mapmaker
TopoZone.com
ed at topozone.com


-----Original Message-----
From: Fu Chen [mailto:fchen at ne.rsgs.ac.cn] 
Sent: Friday, October 24, 2003 7:12 AM
To: gdal-dev at remotesensing.org
Subject: [Gdal-dev] Tiff on the CD

Hi!
I have a problem in my project. We have a lot of tiff images on CD or
DVD. So I can't build overviews on they to make they be browsed more
fluently in a viewer writed on GDAL. I wonder if there is a way that i
can build the overviews on my hard disk. When user wanna know the
information of whole image, RasterIO will find the data in harddisk. And
when the user want the detail, RasterIO will turn to the CD. I think it
will be much efficiently. But I know know whether it is possible to
implement it by GDAL.
Any idea?

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