Hi List, I have a reprojectiion tool which creates GeoTIFFs with NoData = NaN. I'm creating couple of GeoTIFFs with partially overlapping areas where GeoTIFF1 has NaNs in a region and GeoTIFF2 has proper values in the same overlapping region and viceversa (GeoTIFF2 has some NaN area while GeoTIFF1 has valid pixels for same area). I have built a VRT on top of them and then translated into a single GeoTIFF. However, the result has NaN in those regions. I was hoping that the area containing NaNs would have been ignored instead, in favor of proper values from the other file. Is there any flag, properties or suggestions to make it working?
If I configure the reprojection tool to write NoData = -9999 and then use gdalbuildvrt -srcnodata -9999, things are working fine. So I'm just wondering if the same can be achieved dealing with NaN instead of custom values. Please, let me know. Cheers, Daniele -- == GeoServer Professional Services from the experts! Visit http://goo.gl/it488V for more information. == Ing. Daniele Romagnoli Senior Software Engineer GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 1660272 http://www.geo-solutions.it http://twitter.com/geosolutions_it ------------------------------------------------------- *AVVERTENZE AI SENSI DEL D.Lgs. 196/2003* Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003. The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.
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