On Mon, Jun 6, 2011 at 1:12 PM, Thomas Lefort <[email protected]> wrote: > Hi, > > I would like to define a GeoTiff coordinate transformation by a set of > GCPs only. The intention is to publish the GeoTiff as a coverage in > GeoServer. > > However if I specify tie points only, GeoServer complains that I also > need to specify the scale tag, which then results in only one tie point > used, eg no inclination or shearing. Is this normal? Can't I use GCPs > alone for projection?
Nope, it is not supported at the moment. We're waiting for someone to implement or fund such functionality. > On the other hand I could define a transform, but the transformation is > rather limited compared to let say a set of 10 GCPs. I have rather > elongated areas, ie Satellite images covering several 10s of lats degrees. You can use gdalwarp and make it rectify the images out of the GCP, this way you get both good accuracy and the usage of a single transformation Cheers Andrea -- ------------------------------------------------------- Ing. Andrea Aime GeoSolutions S.A.S. Tech lead Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ------------------------------------------------------- ------------------------------------------------------------------------------ Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Discover what all the cheering's about. Get your free trial download today. http://p.sf.net/sfu/quest-dev2dev2 _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
