Hi WanMil,
I haven't tried yet but it seems to be a good idea.
Why is the sea density map and the usual density map merged before trimming occurs? My uneducated guess is that it is better to merge after trimming because the areas that could be trimmed should not be left in the tiles only by having some coastline parts. Trimming occurs after the calculation of the tiles, so it would be difficult to use the data at this stage. I did not fully understand why coastline data is added to an otherwise empty area, so I thought it is better to start with something and ask for comments.
Wouldn't it be better if the sea density map is delivered with splitter? It won't change very much over time and I guess a 90% correct density map would be sufficient. This makes it easier and probably quicker because you don't have to give a path to the precompiled sea files...
Well, good point. I didn't notice that we are talking about more or less constant data. Anyway, this optimization can be done when the usage of the data is correct. Gerd