Before I start, if anyone considers this a duplicate, then that's fair enough, I'll not object, I do happen to think however that it's a question that I don't see a clear answer for either here or elsewhere.
What I need to do is to create a simple, flat set of tiles from a single large raster.
I'm aware that we have "gdal2tiles" in the os4gw toolset, but this insists on creating the simple features recommended folder structure which is not what I need to do.
I'm also aware that there are other tools (GDAL warp I think does it) that have the "Projection Window" option, allowing to extract only a given region, but for that to work I need to provide the geo co-ordinates on the command line, which means creating loops and increment things correctly, not a task that anyone working on windows really relishes 🙂
I'm prepared to write my own tool if I have to, using either C and/or C# and the GDAL Libraries, but before I go down this route, I thought I'd ask here.
Put simply, is there a tool, or an option in the existing tools I may have missed that allows me to say:
c:>tilethisimage size=256×256 bigmap.tif
and end up with
tile-0-0.tif
tile-1-0.tif
tile-2-0.tif
tile-3-0.tif
tile-4-0.tif
.
.
.
.
tile-0-20.tif
tile-1-20.tif
tile-2-20.tif
tile-3-20.tif
tile-4-20.tif
Or similar, in the current directory, without the complication of having to sort through folders, figure out zoom levels or anything else?
All I need is the larger image cut into tiles of the requested size, and with the correct geo-spatial reference data embedded in them. I don't need KML's, Virtual raster's, tab files, world files or anything else.
If it wasn't for the fact I needed to preserve the geo-spatial co-ordinate info and have those co-ordinates mapped correctly for the tile sizes, I would quite simply just use imagemagik to cut the image.
Best Answer
I think you could use the "gdal_retile.py" script:
http://gdal.org/gdal_retile.html
:)