[Geoserver-users] Raster reprojection issue EPSG:2154 -> EPSG:3857

2016-10-10 Thread François Van Der Biest
Hi everyone, We have a geoserver 2.8.3 instance running with jetty 9.2 / jre7 which fails to display a mosaic of tiff files without vertical artifacts when reprojecting from EPSG:2154 (Lambert 93) to EPSG:3857 I've setup a simple ol3-based viewer showing the behavior: https://ppige-npdc.fr/openda

Re: [Geoserver-users] Raster reprojection issue EPSG:2154 -> EPSG:3857

2016-10-10 Thread Andrea Aime
On Mon, Oct 10, 2016 at 4:24 PM, François Van Der Biest < francois.vanderbi...@camptocamp.com> wrote: > Hi everyone, > > We have a geoserver 2.8.3 instance running with jetty 9.2 / jre7 which > fails to display a mosaic of tiff files without vertical artifacts when > reprojecting from EPSG:2154 (L

Re: [Geoserver-users] Raster reprojection issue EPSG:2154 -> EPSG:3857

2016-10-10 Thread François Van Der Biest
Hi Andrea, Thanks for your answer. On Mon, Oct 10, 2016 at 5:14 PM, Andrea Aime wrote: > > I'd say, in the code, not in the data, but not sure where... could be the > resample operation. As you said, the issue happens only > when oversampling, if the raster is looked at its native resolution the