[gdal-dev] RPC transform

[Livneh Yehiyam]

Hi
I have a question about the RPC transform implemented in gdal_rpc.cpp.
If a dem file is specified in the transform options (RPC_DEM) the file is sampled to retrieve the elevation of the transformed point.
In the case where the dem file is a DTED file (which defines AREA_OR_POINT to POINT), shouldn't the pixel/line values in the dem file be offset by half a pixel to get the correct height?

Thanks
Yehiyam


________________________________________

This message (including any attachments) issued by RAFAEL- ADVANCED DEFENSE SYSTEMS LTD. (hereinafter "RAFAEL") contains confidential information intended for a specific individual and purpose, may constitute information that is privileged or confidential or otherwise protected from disclosure. If you are not the intended recipient, you should contact us immediately and thereafter delete this message from your system. You are hereby notified that any disclosure, copying, dissemination, distribution or forwarding of this message, or the taking of any action based on it, is strictly prohibited. If you have received this e-mail in error, please notify us immediately by e-mail mailto:lawraf at rafael.co.il and completely delete or destroy any and all electronic or other copies of the original message and any attachments thereof.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20130116/3ef284e4/attachment-0001.html>