OSM-3D-Integrated-DEM

Integrated DEM Style

All landuse, natural, vegetaion and other areas are displayed together with the Digital Elevation Model (DEM). The DEM is computed by the OSM-3D DEMTileGenerator process and stored as multiple tile sets in the W3DS data base. Due to the complexity of the DEM computation, the tiles are not generated on demand, but always retrieved from the W3DS data base, which is updated periodically. The sizes of the DEM tiles correspond with the tile sizes as defined by the OSM tile cache. That is, level 0 is covering the whole world, a level 16 tile represents just a small portion of approx. 611x611 meters, which can be shown at larger scales. With each level, the tile size is divided by 2 and the number is quadrupled. Currently, level 7 through level 16 are being processed. All map features that represent physical structures of the earth surface and that can be described by a distinctive surface structure, are rendered as part of the DEM. This applies also to linear features such as the road network, paths, railways, waterways, and such. In this case, a geometrical buffer (Hausdorff distance around the lines) is applied to them in order to display them as part of the DEM. The buffer width increases with the tile size, since otherwise, these features would quickly disappear in the distance if only the "original", i.e. estimated real width would be taken.

The following table summarizes all land coverage, natural, and road features that are currently extracted from OSM and served by the W3DS. The values in the Buffer / Tile Level columns indicate whether or not the feature is selected for the specific tile level. Zero values mean that the feature is selected although no buffer is applied, since it's a polygon feature. Positive values describe the buffer width in meters (to both sides of the line, thus the actual feature width is twice this value).

Key	Value	Element	Color	Buffer / Tile Level
				16	15	14	13	12	11	10	9	8	7	6	5	4	3	2
Natural
natural	coastline			0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
natural	beach			0	0	0	0	0	0
natural	cliff			0	0	0	0	0	0
natural	wetland			0	0	0	0	0	0
natural	marsh			0	0	0	0	0	0
natural	mud			0	0	0	0	0	0
natural	scree			0	0	0	0	0	0
natural	fell			0	0	0	0	0	0	0	0	0	0	0	0	0	0
natural	glacier			0	0	0	0	0	0	0	0	0	0	0	0	0	0
natural	heath			0	0	0	0	0	0	0	0	0	0	0	0	0	0
natural	scrub			0	0	0	0	0	0	0	0	0	0	0
natural	water			0	0	0	0	0	0	0	0
natural	land			0	0	0	0	0
Landuse
landuse	allotments			0	0	0
landuse	cemetery			0	0	0	0	0
landuse	commercial			0	0	0	0	0	0	0	0	0	0
landuse	farm			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	farmland			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	farmyard			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	grass			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	greenfield			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	recreation_ground			0	0	0	0	0	0	0	0	0	0
landuse	vineyard			0	0	0	0	0	0	0	0	0	0
landuse	forest			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	industrial			0	0	0	0	0	0	0	0	0	0
landuse	meadow			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	quarry			0	0	0	0	0	0	0	0	0	0
landuse	residential			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	retail			0	0	0	0	0	0	0	0	0	0
landuse	village_green			0	0	0	0	0	0	0	0	0	0
landuse	wood			0	0	0	0	0	0	0	0	0	0	0	0	0	0
landuse	railway			0	0	0	0	0	0
landuse	construction			0	0	0	0	0
landuse	landfill			0	0	0	0	0
landuse	brownfield			0	0	0	0	0
Leisure
leisure	park			0	0	0	0	0	0	0	0	0	0	0
leisure	water_park			0	0	0	0
Waterway
waterway	riverbank			0	0	0	0	0	0	0	0
waterway	river			10	15	22,5	33,75	50,625	75,9375	113,90625	170,859375
waterway	canal			15	22,5	33,75	50,625	75,9375	113,90625	170,859375
waterway	stream			5	7,5	11,25	16,875
Place
place	island			0	0	0	0	0	0	0
Aeroway
aeroway	taxiway			18,5	18,5	18,5	18,5	18,5
aeroway	runway			30	30	30	30	30	30
Highway
highway	motorway			14,25	14,25	21,375	32,0625	48,09375	72,140625	108,2109375	162,3164063	243,4746094
highway	motorway_link			6,0375	6,0375	9,05625	13,584375	20,3765625	30,56484375
highway	trunk			11,25	11,25	16,875	25,3125	37,96875	56,953125	85,4296875	128,1445313	192,2167969
highway	trunk_link			6,0375	6,0375	9,05625	13,584375	20,3765625	30,56484375
highway	primary			9,6	9,6	14,4	21,6	32,4
highway	primary_link			3,9	3,9	5,85	8,775
highway	secondary			6	6	9	13,5
highway	secondary_link			3,75	3,75	5,625	8,4375
highway	tertiary			5,625	5,625	8,4375
highway	unclassified			4,5	4,5
highway	residential			5,625	5,625	8,4375
highway	living_street			4,5	4,5
highway	service			4,5	4,5
highway	track			3	4,5
highway	pedestrian			6	6
highway	path			3	4,5
highway	cycleway			2	3
highway	footway			1,5	2,25
Railway
railway	rail			3	4,5	6,75	10,125	15,1875

This table is a wiki template with a default description in English. Editable here.