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gdal2mb's Introduction

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Requirements

Usage

If GeoTIFFs are in projections other than EPSG:900913 (as many are), run gdalwarp first:

gdalwarp -t_srs EPSG:900913 raster.tiff raster_merc.tiff

Run python gdal2tiles.py -h for usage instructions.

Description

This is a variation of the gdal2tiles script that supports MapBox mbtiles SQLite tilesets as an output option. It has the same requirements as the original script - notably an installation of GDAL.

Usage of this command is

python gdal2tiles.py raster_merc.tiff raster_merc.mbtiles

The resultant .mbtiles file can be used in Maps on a Stick and elsewhere.

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gdal2mb's Issues

gdal2tiles.py data input issue

Hello,

I'm trying to make a MBTILES file from the MOLA topography data of Mars. To avoid any confusion related to the smaller size of Mars I stripped the original data from it's projection information and assigned the WGS 1984 geographical projection to the data (the data extent is lon: -180 to 180, and lat: -88 to 88).
Next I made a mercator projected raster: gdalwarp -t_srs EPSG:900913 raster.tiff raster_merc.tiff
And then I ran your gdal2tiles.py script.

The problem is that I get the following 0/0/0 PNG: http://www.iivision.com/temp/mb2xyz.php?file=mola&code=0/0/0. The PHP in the URL streams the MBTILES file, see stamen/modestmaps-js#49.

When I open the raster_merc.tif data in QGIS I get a similar type of image (width and height not the same). Do you have any idea how I can get a mercator projected image which will perfectly fill the 0/0/0 PNG?

Thanks in advance,

Jelmer

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