Hi, Is there some good reason for not creating a BigTIFF image and go over 4 GB limit? Gdal should do it automatically but sometimes it may need -co BIGTIFF=YES option. But naturally the 1 pixel border should have a more general solution. Have you tried to increase image size of both halfs by one pixel so they overlat at the seam?
-Jukka Rahkonen- Adam Ratcliffe wrote: > I ran into a problem when warping my merged SRTM data that the output image was greater than the 4GB GeoTIFF file size limit. To overcome this problem I generated 2 output images, one for the North Island of New Zealand and the other for the South Island. I did this using the - te option to gdalwarp to specify the extents of the output file, color relief and hillshade images were generated from these warped images. > Problem is I'm seeing a dark band where the 2 sets of images meet, this can be seen in this screenshot: http://test.geosmart.co.nz/images/map-border.png Looking at the hillshade image there appears to be a black 1px border around the image. > Could this be the source of the problem? Has anybody else seen and found a resolution for the issue? > Cheers > Adam Ratcliffe Software Developer GeoSmart PO Box 101001 29 Apollo Drive, Mairangi Bay, Auckland, NZ Ph: +64 9 9668757 Fx: +64 9 966 8721 Email: [email protected] Web: www.GeoSmart.co.nz _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
