I have some shapefiles of the world from Natural Earth at WGS84. I would like to convert them to the Miller Projection. I have ogr2ogr, but I'm not sure what the parameters for this conversion should be, or if this conversion can be done with it.
Because the eastern part of Russia crosses the 180° meridian, you have to cut your shapefile there. I have written a tutorial for cutting at any meridian to use the Natural Earth shapefiles here:
The clipping polygon for your case is:
Nr;WKT 1;POLYGON ((180.1 90, 179.9 90, 179.9 -90, 180.1 -90, 180.1 90))
giving you this result with EPSG:53003 (the spherical version of the Miller projection):
If this works in QGIS, it works as well with pure ogr2ogr:
ogr2ogr -clipsrclayer D:\Karten\shp\Projektionen\180deg.txt -t_srs EPSG:53003 D:\Karten\shp\Projektionen\ne-miller.shp D:\Karten\shp\NaturalEarth\ne_110m_admin_0_countries.shp