On Wed, Oct 28, 2009 at 11:46 AM, Steve Ratcliffe <steve@parabola.me.uk> wrote:
Is it possible to set options like "route" or "transparent" on a per-family or per-tile basis? E.g. I'd like to have routing for the OSM layer, but not the contour line layers. The contour line layers must be transparent, but not the OSM layers.
All those options are properties of the individual tile, and so yes you can combine maps that were created with different options together.
You can't change them during the combining step though, if that is what you were asking.
But is it possible to take an existing image file and set its --transparent value or --draw-priority after it has been generated? I recently had some 3rd party contours that weren't transparent along with a map that had the wrong --draw-priority relative to the contours. I tried to fix it up with mkgmap but couldn't.