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mapnik: please render natural=cliff for ways #895

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openstreetmap-trac opened this issue Jul 23, 2021 · 5 comments
Closed

mapnik: please render natural=cliff for ways #895

openstreetmap-trac opened this issue Jul 23, 2021 · 5 comments

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@openstreetmap-trac
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Reporter: robx
[Submitted to the original trac issue database at 9.45am, Monday, 12th May 2008]

People have been tagging cliffs as ways using natural=cliff. As far as I can tell, this is not currently rendered.

By convention, the top of the cliff is on the left side.

Proposed rendering styles from http://wiki.openstreetmap.org/index.php/Tag:natural%3Dcliff include:

  • a dotted line
  • a solid line with strokes on the downward side
  • two parallel lines, the downward side broken
@openstreetmap-trac
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Author: tom[at]compton.nu
[Added to the original trac issue at 9.49am, Monday, 12th May 2008]

Assigning to Steve - he will probably appreciate it if you have details of a location in the UK that has been tagged in this way so he can test things.

@openstreetmap-trac
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Author: erik[at]tiq.com
[Added to the original trac issue at 12.27am, Saturday, 17th May 2008]

I have some in Stockholm, no coastlines though, it would be cool with the sawtoothed layout.

http://openstreetmap.org/edit?lat=59.3168&lon=18.0438&zoom=15

@openstreetmap-trac
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Author: steve8[at]mdx.ac.uk
[Added to the original trac issue at 9.42pm, Wednesday, 21st May 2008]

Added as grey line with ticks. Downslope is to the left of the direction of the way

@openstreetmap-trac
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Author: emj
[Added to the original trac issue at 1.47am, Saturday, 31st May 2008]

Replying to [comment:3 steve8[at]mdx.ac.uk]:

Downslope is to the left of the direction of the way

I'm pretty sure the ticks are rendered on the right hand side of the way, so the downslope must also be on the right.

http://openstreetmap.org/?lat=59.31561&lon=18.04524&zoom=17&layers=B00FF

@openstreetmap-trac
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Author: steve8[at]mdx.ac.uk
[Added to the original trac issue at 1.24pm, Saturday, 31st May 2008]

Correct. Render implemented the wrong way round first and had to be changed over. However, in your example one of the two lower cliffs appears to be rendering wrong as its direction arrow goes the other way. Incidentally there is a man_made=embankment option that renders, which has shorter ticks and comes in a couple of zooms later. Consider using that.

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