xenial (1) osgearth_backfill.1.gz

NAME

       osgearth_backfill - specialty tool for post-processing TMS datasets

SYNOPSIS

       osgearth_backfill tms.xml [--bounds xmin ymin xmax ymax | --min-level level | --max-level level | --db-
                         options options]

DESCRIPTION

       osgearth_backfill is a specialty tool that is  used  to  post-process  TMS  datasets.  Some  web  mapping
       services  use  completely  different  datasets  at  different zoom levels. For example, they may use NASA
       BlueMarble imagery until they reach level 4, then abruptly switch to LANDSAT data. This is  fine  for  2D
       slippy  map  visualization but can be visually distracting when viewed in 3D because neighboring tiles at
       different LODs look completely different.

       osgearth_backfill lets you generate a TMS dataset like you normally would (using osgearth_package(1),  or
       another  tool)  and  then  "backfill" lower levels of detail from a specified higher level of detail. For
       example, you can specify a max level of 10 and LODs 0-9 will be regenerated based on the  data  found  in
       level 10.

OPTIONS

       tms.xml
              Path to the tms.xml file

       --bounds xmin ymin xmax ymax
              bounds to backfill (in map coordinates; default=entire map)

       --min-level level
              The minimum level to stop backfilling to. (default=0)

       --max-level level
              The level to start backfilling from. (default=inf)

       --db-options options
              db options string to pass to the image writer in quotes (e.g., "JPEG_QUALITY 60")

                                                24 November 2015                            osgearth_backfill(1)