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The SRTM 0 Contour Line does not fit in general with the OSM costal lines (see fig. 3). Fig. 3: OSM data overlaid over the SRTM N53E007.hgt image (north sea coast) and the resulting contour line (contour line elevation = 0m, blue pixels = value 0m). OpenDEM - The portal for sharing Free Digital Elevation Models and XYZ height datasets.
Mar 19, 2018 · I am trying to create contour maps in OSM with scales of 1:50,000 and 1:250,000 using 30-meter NASA SRTM data from here. Examples of what I'm trying to achieve can be seen on LINZ NZ Contours 1:50k and NZ Contours 1:250k pages: Using methods strongly based on the OSM Contours page, I've managed to manipulate the SRTM data to render as follows:
- Colour Coding and Shading
- Elevation Contour Lines
- OSM Maps Showing Relief
- Existing Software
- Interesting Articles and Examples
colorized by altitude (as seen in example on top right)shaded relief (levels of gray), just to indicate relative slopes, mountain ridges, not absolute height.See Srtm2Osm; e.g.: See also 1. wikipedia:Cartographic relief depiction. 2. Isohypse Binary File - a description of a new binary format for storing isohypses(contour lines) in files
The cycle map shows contour lines on slippy map tiles, re-rendered at regular intervals. Technical set-up is described on the Contourspage.Mapnik based maps usually import contours using various tools, see ContoursSrtm2Osm converts SRTM data to OSM xml, which can be rendered using Osmarender, Tiles@home, Maperitive and MkgmapOsmAnd can display relief maps on Android devices via a paid pluginOct 2, 2024 · Use gdal_contour to generate shapefiles. For the cycle map, we want to render the 10m, 50m and 100m contours separately, so for every .zip file we'll generate 3 shapefiles. The gdal_contour command is along the lines of: gdal_contour -i 10 -snodata 32767 -a height N54W001.tif N54W001c10.shp.
SRTM: Coverage of the World from North 60° - South 58° Viewfinders Panorama s: Enhanced datasets for mountain areas on base of public domain datasets (look at the website of this great project for all the data sources).
Mar 30, 2015 · # Contour lines node,way contour text linear way contour_ext text linear way ele text linear Append the SRTM data into the database with the command osm2pgsql --append --slim -d gis srtm-data.pbf Add the following XML text in the file /etc/mapnik-osm-carto-data/osm.xml , after the landcover-line Layer (around line 720 in the file).
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Does SRTM 0 contour line fit with OSM costal lines?
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Jul 22, 2024 · Introduction. Srtm2Osm tool uses Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) to generate elevation contours (isohypses) of a selected terrain. The tool writes contours as OSM ways into an OSM file. This then enables rendering of the terrain using Osmarender XSLT transformations or other OSM renderers.
