User:Colin Marquardt/Hike & Bike Map v1

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Since 2009-01-16, I (User:Colin_Marquardt) am developing a Hike & Bike Map style (meant primarily for, you guessed it, hiking and biking).

I want to use the map as a test bed for stuff like:

  • rendering ways depending on their lanes=* tag
  • rendering peaks depending on their importance=* tag (see Elbsandsteingebirge)
  • osmc:symbol=* (see also Dresdner Heide)
  • maybe multiple fonts (some maps use more than a single font, to differentiate between feature groups), using white text with a dark halo
  • rendering areas with stretched out text
  • rendering lit=* as an overlay (a "By night" or "Street Lighting" map)

Technical references/acknowledgements (in no particular order):


  • There is a known problem with the expiry process on WikiMedia's Toolserver, so tiles are out of date. To force a re-rendering, switch off all overlays like the hillshading, then open a tile as an image (in Firefox, it's "View Image" in the context menu), and append "/dirty" to the image's URL. This will update 8x8 tiles at this zoom level. --Colin Marquardt 16:58, 15 April 2011 (BST)


importance=5.0	 or	importance=international	zoom=>3
importance=3.0	 or	importance=national	        zoom=>5
importance=1.0 	 or	importance=regional	        zoom=>8
importance=0.0 	 or	importance=urban		zoom=>11
importance=-1.0	 or	importance=suburban     	zoom=>13
importance=-2.0	 or     importance=local		zoom=>14


The tag "importance"

NOTE: this is not a formal proposal (yet).

We needed something to express the importance of a feature (lots of tagged peaks in the Elbsandsteingebirge our case, and they all look the same on the main map).

importance is a float point (a.k.a. real) value.

  • scale -5.0 to 5.0 (-5.0 = very unimportant; 5.0 = most important)
  • standard value is "not set" - no one decided on importance yet
  • an explicitly set value of 0.0 means the feature is average in a region(?)

Things to ask yourself when deciding on a value:

  • "Starting with which zoom level would this feature be shown on a world map?"
  • "How important is this feature compared to their neigbours in the the region, and how important is it absolutely on a global scale?"


How do we get a scale for natural=peak, i.e. an answer to the question "where does my peak here fit into your system"?

Some important peaks to think about:

  • Mount Everest (highest peak in the world)
  • Mont Blanc (highest peak in the Alps)
  • Matterhorn (very well known)
  • Zugspitze (highest peak in Germany)
  • Lilienstein, Sneznik (Hoher Schneeberg) (most prominent in the Elbsandsteingebirge)

For peaks, scientists usually speak about prominence, but importance is a more general term that can be used for other features as well so we chose that instead.

See also