Hi, I'm trying to build a map with different layers, but I guess something is wrong with the draw-priority parameter or the way i use it. 4 layers : - Layer 1 : Contour line. draw-priority=25 (the highest). Transparent Specific style (contour) - the style is just (actually): natural=coastline [0x15 resolution 12] I generate a gmapsupp.img file - Layer 2 : Personal data draw-priority=20 (a little less than layer 1). Transparent Specific style (perso) I generate a gmapsupp.img file - Layer 3 : Normal OSM map. draw-priority=10 (the highest). NO Transparency (of course) Specific style (perso) I generate a gmapsupp.img file - Layer 4 : Search map (with the road-name-pois parameter). draw-priority=1 (the lowest). No specific style. I generate a gmapsupp.img file So I should have : layer 1 (contour) : - - - - - - - - - - - - - - - - - - - layer 2 (personal : - - - - - - - - - - - - - - - - - - - layer 3 (normal) : ------------------------------------- layer 4 (search) : ------------------------------------- So, layers 1, 2 and 3 should be visible, not layer 4 as below a non transparent layer. Now, when I mix all those gmapsupp files (I rename all of them of course) plus the two .TYP files (PERSO and CONTOUR), I have different results depending the way I place them on the command line. 1) ex: mkgmap gmapsupp_layer1 gmapsupp_layer2 gmapsupp_layer3 gmapsupp_layer4 CONTOUR.TYP PERSO.TYP makes layer2 not visible. The map displayed seems to use a default style. 2) ex: mkgmap gmapsupp_layer4 gmapsupp_layer2 gmapsupp_layer1 gmapsupp_layer4 CONTOUR.TYP PERSO.TYP makes layer1 not visible. I don't know which style it uses, none of mine at least. 3) Now if I compile layer1 with my "perso" style and if I remove the CONTOUR.TYP file from the gmapsupp generated at the end of the process, my perso style is again not used, and I have always one of the layers, not displayed. Maybe I do something wrong here, but I do not understand from the tests I made and results I have how the draw-priority works. Francois P.S. I tried all possible orders, but I never got a good result. --