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style.lua
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style.lua
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-- ----------------------------------------------------------------------------
-- style.lua
--
-- Copyright (C) 2018-2024 Andy Townsend
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
-- ----------------------------------------------------------------------------
-- Code common to several projects is in "shared_lua.lua".
-- That file is in this repository, but needs to be available on the standard
-- lua path when this script is invoked. The "update_render.sh" script does
-- this by:
-- cp /home/${local_filesystem_user}/src/SomeoneElse-style/shared_lua.lua -
-- /usr/local/share/lua/5.3/
-- ----------------------------------------------------------------------------
require "shared_lua"
polygon_keys = { 'boundary', 'building', 'landcover', 'landuse', 'amenity', 'harbour', 'historic', 'leisure',
'man_made', 'military', 'natural', 'office', 'place', 'power',
'public_transport', 'seamark:type', 'shop', 'sport', 'tourism', 'waterway',
'wetland', 'water', 'aeroway' }
generic_keys = {'access','addr:housename','addr:housenumber','addr:interpolation','admin_level','advertising','aerialway','aeroway','amenity','area','area:highway','barrier',
'bicycle','brand','bridge','bridleway','booth','boundary','building', 'canoe', 'capital','construction','covered','culvert','cutting','denomination','departures_board','designation','disused','disused:highway','disused:man_made','disused:military','disused:shop','ele',
'embankment','emergency','entrance','foot','flood_prone','generation:source','geological','golf','government',
'harbour','hazard_prone','hazard_type','highway','historic','horse','hours','information','intermittent',
'junction','landcover','landuse','layer','leisure','lcn_ref','lock','locked',
'man_made','marker','military','motor_car','name','natural','ncn_milepost','office','oneway','operator','opening_hours:covid19','outlet','passenger_information_display','pipeline','pitch','place','playground','poi','population','power','power_source','public_transport',
'railway','railway:historic','ref','religion','rescue_equipment','route',
'school','seamark:type','seamark:rescue_station:category','service','shop','sport','surface',
'toll','tourism','tower:type', 'tracktype','training','tunnel','water','waterway',
'wetland', 'whitewater', 'width','wood','type', 'zoo' }
function add_z_order(keyvalues)
z_order = 0
if (keyvalues["layer"] ~= nil and tonumber(keyvalues["layer"])) then
z_order = 10*keyvalues["layer"]
end
zordering_tags = {{ 'railway', nil, 5, 1}, { 'boundary', 'administrative', 0, 1},
{ 'bridge', 'yes', 10, 0 }, { 'bridge', 'true', 10, 0 }, { 'bridge', 1, 10, 0 },
{ 'tunnel', 'yes', -10, 0}, { 'tunnel', 'true', -10, 0}, { 'tunnel', 1, -10, 0},
{ 'highway', 'road', 2, 0 },
{ 'highway', 'unclassified', 3, 0 }, { 'highway', 'unclassified_sidewalk', 3, 0 }, { 'highway', 'unclassified_verge', 3, 0 }, { 'highway', 'unclassified_ford', 3, 0 },
{ 'highway', 'living_street', 3, 0 }, { 'highway', 'living_street_sidewalk', 3, 0 }, { 'highway', 'living_street_verge', 3, 0 }, { 'highway', 'living_street_ford', 3, 0 },
{ 'highway', 'residential', 3, 0 },
{ 'highway', 'tertiary_link', 4, 0}, { 'highway', 'tertiary', 4, 0}, { 'highway', 'tertiary_sidewalk', 4, 0}, { 'highway', 'tertiary_verge', 4, 0},
{ 'highway', 'secondary_link', 6, 1}, { 'highway', 'secondary', 6, 1}, { 'highway', 'secondary_sidewalk', 6, 1}, { 'highway', 'secondary_verge', 6, 1},
{ 'highway', 'primary_link', 7, 1}, { 'highway', 'primary', 7, 1},{ 'highway', 'primary_sidewalk', 7, 1},{ 'highway', 'primary_verge', 7, 1},
{ 'highway', 'trunk_link', 8, 1}, { 'highway', 'trunk', 8, 1},
{ 'highway', 'motorway_link', 9, 1}, { 'highway', 'motorway', 9, 1},
{ 'highway', 'ldpnwn', 91, 1}, { 'highway', 'ldpncn', 91, 1}, { 'highway', 'ldpmtb', 91, 1}, { 'highway', 'ldpnhn', 91, 1},
}
for i,k in ipairs(zordering_tags) do
if ((k[2] and keyvalues[k[1]] == k[2]) or (k[2] == nil and keyvalues[k[1]] ~= nil)) then
if (k[4] == 1) then
roads = 1
end
z_order = z_order + k[3]
end
end
keyvalues["z_order"] = z_order
return keyvalues, roads
end
function filter_tags_generic(keyvalues, nokeys)
-- ----------------------------------------------------------------------------
-- local table for parameter passing
-- ----------------------------------------------------------------------------
local t = {}
filter = 0
tagcount = 0
if nokeys == 0 then
filter = 1
return filter, keyvalues
end
delete_tags = { 'FIXME', 'note', 'source' }
for i,k in ipairs(delete_tags) do
keyvalues[k] = nil
end
for k,v in pairs(keyvalues) do
for i, k2 in ipairs(generic_keys) do if k2 == k then tagcount = tagcount + 1; end end
end
if tagcount == 0 then
filter = 1
end
-- ----------------------------------------------------------------------------
-- Invalid layer values - change them to something plausible.
-- ----------------------------------------------------------------------------
keyvalues["layer"] = fix_invalid_layer_values( keyvalues["layer"], keyvalues["bridge"], keyvalues["embankment"] )
-- ----------------------------------------------------------------------------
-- Treat "was:" as "disused:"
-- ----------------------------------------------------------------------------
if (( keyvalues["was:amenity"] ~= nil ) and
( keyvalues["disused:amenity"] == nil )) then
keyvalues["disused:amenity"] = keyvalues["was:amenity"]
end
if (( keyvalues["was:waterway"] ~= nil ) and
( keyvalues["disused:waterway"] == nil )) then
keyvalues["disused:waterway"] = keyvalues["was:waterway"]
end
if (( keyvalues["was:railway"] ~= nil ) and
( keyvalues["disused:railway"] == nil )) then
keyvalues["disused:railway"] = keyvalues["was:railway"]
end
if (( keyvalues["was:aeroway"] ~= nil ) and
( keyvalues["disused:aeroway"] == nil )) then
keyvalues["disused:aeroway"] = keyvalues["was:aeroway"]
end
if (( keyvalues["was:landuse"] ~= nil ) and
( keyvalues["disused:landuse"] == nil )) then
keyvalues["disused:landuse"] = keyvalues["was:landuse"]
end
if (( keyvalues["was:shop"] ~= nil ) and
( keyvalues["disused:shop"] == nil )) then
keyvalues["disused:shop"] = keyvalues["was:shop"]
end
-- ----------------------------------------------------------------------------
-- Treat "closed:" as "disused:" in some cases too.
-- ----------------------------------------------------------------------------
if (( keyvalues["closed:amenity"] ~= nil ) and
( keyvalues["disused:amenity"] == nil )) then
keyvalues["disused:amenity"] = keyvalues["closed:amenity"]
end
if (( keyvalues["closed:shop"] ~= nil ) and
( keyvalues["disused:shop"] == nil )) then
keyvalues["disused:shop"] = keyvalues["closed:shop"]
end
-- ----------------------------------------------------------------------------
-- Treat "status=abandoned" as "disused=yes"
-- ----------------------------------------------------------------------------
if ( keyvalues["status"] == "abandoned" ) then
keyvalues["disused"] = "yes"
end
-- ----------------------------------------------------------------------------
-- Designation processing
--
-- The "standard" stylesheet contains rules for different sorts of tracks
-- (tracktype), but doesn't contain rules for English/Welsh rights of way
-- designations.
--
-- The changes here do the following:
-- 1) Render any non-designated footway, bridleway, cycleway or track as "path"
-- (grey dashes in the "standard" style)
-- 2) Render anything designated as "public_footpath" as a "footway" (dotted
-- salmon)
-- 3) Render anything designated as "public_bridleway" as a "bridleway" (dotted
-- green).
-- 4) Render anything designated as "restricted_byway" as something a bit like
-- a bridleway, but with different dashes. Likewise "public_right_of_way".
-- 5) Render anything designated as "byway_open_to_all_traffic" as something
-- like a track (dashed brown)
-- 6) Render anything designated as "unclassified_county_road" or a
-- misspelling also like a track, but longer dashed brown.
--
-- These changes do mean that the the resulting database isn't any use for
-- anything other than rendering, but they do allow designations to be
-- displayed without any stylesheet changes.
-- ----------------------------------------------------------------------------
keyvalues["tracktype"] = nil
-- ----------------------------------------------------------------------------
-- Before processing footways, turn certain corridors into footways
--
-- Note that https://wiki.openstreetmap.org/wiki/Key:indoor defines
-- indoor=corridor as a closed way. highway=corridor is not documented there
-- but is used for corridors. We'll only process layer or level 0 (or nil)
-- ----------------------------------------------------------------------------
keyvalues["highway"] = fix_corridors( keyvalues["highway"], keyvalues["layer"], keyvalues["level"] )
-- ----------------------------------------------------------------------------
-- If there are different names on each side of the street, we create one name
-- containing both.
-- If "name" does not exist but "name:en" does, use that.
-- ----------------------------------------------------------------------------
keyvalues["name"] = set_name_left_right_en( keyvalues["name"], keyvalues["name:left"], keyvalues["name:right"], keyvalues["name:en"] )
-- ----------------------------------------------------------------------------
-- Move refs to consider as "official" to official_ref
-- ----------------------------------------------------------------------------
keyvalues["official_ref"] = set_official_ref( keyvalues["official_ref"], keyvalues["highway_authority_ref"], keyvalues["highway_ref"], keyvalues["admin_ref"], keyvalues["admin:ref"], keyvalues["loc_ref"], keyvalues["ref"] )
-- ----------------------------------------------------------------------------
-- Consolidate some rare highway types into ones we can display.
-- ----------------------------------------------------------------------------
keyvalues["highway"] = process_golf_tracks( keyvalues["highway"], keyvalues["golf"] )
-- ----------------------------------------------------------------------------
-- "Sabristas" sometimes add dubious names to motorway junctions. Don't show
-- them if they're not signed.
-- ----------------------------------------------------------------------------
keyvalues["name"] = suppress_unsigned_motorway_junctions( keyvalues["name"], keyvalues["highway"], keyvalues["name:signed"], keyvalues["name:absent"], keyvalues["unsigned"] )
-- ----------------------------------------------------------------------------
-- Move unsigned road refs to the name, in brackets.
-- ----------------------------------------------------------------------------
t = { keyvalues["name"], keyvalues["highway"], keyvalues["name:signed"], keyvalues["name:absent"], keyvalues["official_ref"], keyvalues["ref"], keyvalues["ref:signed"], keyvalues["unsigned"] }
suppress_unsigned_road_refs( t )
keyvalues["name"] = t[1]
keyvalues["highway"] = t[2]
keyvalues["name:signed"] = t[3]
keyvalues["name:absent"] = t[4]
keyvalues["official_ref"] = t[5]
keyvalues["ref"] = t[6]
keyvalues["ref:signed"] = t[7]
keyvalues["unsigned"] = t[8]
-- ----------------------------------------------------------------------------
-- Show natural=bracken as scrub
-- ----------------------------------------------------------------------------
if ( keyvalues["natural"] == "bracken" ) then
keyvalues["natural"] = "scrub"
end
-- ----------------------------------------------------------------------------
-- Show natural=col as natural=saddle
-- ----------------------------------------------------------------------------
if ( keyvalues["natural"] == "col" ) then
keyvalues["natural"] = "saddle"
end
-- ----------------------------------------------------------------------------
-- Render old names on farmland etc.
-- ----------------------------------------------------------------------------
if ((( keyvalues["landuse"] == "farmland" ) or
( keyvalues["natural"] == "grassland" ) or
( keyvalues["natural"] == "scrub" )) and
( keyvalues["name"] == nil ) and
( keyvalues["old_name"] ~= nil )) then
keyvalues["name"] = "(" .. keyvalues["old_name"] .. ")"
keyvalues["old_name"] = nil
end
-- ----------------------------------------------------------------------------
-- If "visibility" is set but "trail_visibility" is not, use "visibility".
-- ----------------------------------------------------------------------------
if (( keyvalues["visibility"] ~= nil ) and
( keyvalues["trail_visibility"] == nil )) then
keyvalues["trail_visibility"] = keyvalues["visibility"]
end
-- ----------------------------------------------------------------------------
-- Rationalise the various trail_visibility values into 3 sets
-- (no value) Implied good trail visibility.
--
-- intermediate Less trail visibility. Shown with wider gaps in dotted line
-- bad Even less trail visibility. Shown with wider gaps or not shown
-- (depending on designation).
--
-- "trail_visibility=unknown" is treated as "good" since it's been mapped
-- from aerial imagery. It's not explicitly referenced below.
--
-- "trail_visibility=low" is treated as "intermediate" based on looking at
-- the use in OSM.
--
-- Also treat "overgrown=yes" as "intermediate". A discussion on talk-gb was
-- largely inconclusive, but "overgrown" is the "most renderable" way to deal
-- with things like this. A later suggestion "foot:physical=no" is also
-- included.
--
-- "informal=yes" was less common in the UK (but is becoming more so).
-- ----------------------------------------------------------------------------
if (( keyvalues["trail_visibility"] == "no" ) or
( keyvalues["trail_visibility"] == "none" ) or
( keyvalues["trail_visibility"] == "nil" ) or
( keyvalues["trail_visibility"] == "horrible" ) or
( keyvalues["trail_visibility"] == "very_bad" ) or
( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "poor" ) or
( keyvalues["foot:physical"] == "no" )) then
keyvalues["trail_visibility"] = "bad"
end
if (( keyvalues["trail_visibility"] == "intermediate" ) or
( keyvalues["trail_visibility"] == "intermittent" ) or
( keyvalues["trail_visibility"] == "indistinct" ) or
( keyvalues["trail_visibility"] == "medium" ) or
( keyvalues["trail_visibility"] == "low" ) or
( keyvalues["overgrown"] == "yes" ) or
( keyvalues["obstacle"] == "vegetation" ) or
(( keyvalues["trail_visibility"] == nil ) and
( keyvalues["informal"] == "yes" ))) then
keyvalues["trail_visibility"] = "intermediate"
end
-- ----------------------------------------------------------------------------
-- If we have an est_width but no width, use the est_width
-- ----------------------------------------------------------------------------
if (( keyvalues["width"] == nil ) and
( keyvalues["est_width"] ~= nil )) then
keyvalues["width"] = keyvalues["est_width"]
end
-- ----------------------------------------------------------------------------
-- highway=scramble is used very occasionally
--
-- If sac_scale is unset, set it to "demanding_alpine_hiking" here so that
-- e.g. "badpathnarrow" is set lower down.
-- If it is already set, use the already-set value.
--
-- Somewhat related, if "scramble=yes" is set and "trail_visibility" isn't,
-- set "trail_visibility==intermediate" so that e.g. "badpathnarrow" is set.
-- ----------------------------------------------------------------------------
if ( keyvalues["highway"] == "scramble" ) then
keyvalues["highway"] = "path"
if ( keyvalues["sac_scale"] == nil ) then
keyvalues["sac_scale"] = "demanding_alpine_hiking"
end
end
if (( keyvalues["highway"] ~= nil ) and
( keyvalues["scramble"] == "yes" ) and
( keyvalues["sac_scale"] == nil ) and
( keyvalues["trail_visibility"] == nil )) then
keyvalues["trail_visibility"] = "intermediate"
end
-- ----------------------------------------------------------------------------
-- Suppress non-designated very low-visibility paths
-- Various low-visibility trail_visibility values have been set to "bad" above
-- to suppress from normal display.
-- The "bridge" check (on trail_visibility, not sac_scale) is because if
-- there's really a bridge there, surely you can see it?
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] ~= nil ) and
( keyvalues["designation"] == nil ) and
( keyvalues["trail_visibility"] == "bad" )) then
if ((( tonumber(keyvalues["width"]) or 0 ) >= 2 ) or
( keyvalues["width"] == "2 m" ) or
( keyvalues["width"] == "2.5 m" ) or
( keyvalues["width"] == "3 m" ) or
( keyvalues["width"] == "4 m" )) then
if ( keyvalues["bridge"] == nil ) then
keyvalues["highway"] = "badpathwide"
else
keyvalues["highway"] = "intpathwide"
end
else
if ( keyvalues["bridge"] == nil ) then
keyvalues["highway"] = "badpathnarrow"
else
keyvalues["highway"] = "intpathnarrow"
end
end
end
-- ----------------------------------------------------------------------------
-- Various low-visibility trail_visibility values have been set to "bad" above.
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] ~= nil ) and
( keyvalues["ladder"] == "yes" )) then
keyvalues["highway"] = "steps"
keyvalues["ladder"] = nil
end
-- ----------------------------------------------------------------------------
-- Where a wide width is specified on a normally narrow path, render as wider
--
-- Note that "steps" and "footwaysteps" are unchanged by the
-- pathwide / path choice below:
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] == "footway" ) or
( keyvalues["highway"] == "bridleway" ) or
( keyvalues["highway"] == "cycleway" ) or
( keyvalues["highway"] == "path" )) then
if ((( tonumber(keyvalues["width"]) or 0 ) >= 2 ) or
( keyvalues["width"] == "2 m" ) or
( keyvalues["width"] == "2.5 m" ) or
( keyvalues["width"] == "3 m" ) or
( keyvalues["width"] == "4 m" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intpathwide"
else
keyvalues["highway"] = "pathwide"
end
else
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intpathnarrow"
else
keyvalues["highway"] = "pathnarrow"
end
end
end
-- ----------------------------------------------------------------------------
-- Where a narrow width is specified on a normally wide track, render as
-- narrower
-- ----------------------------------------------------------------------------
if ( keyvalues["highway"] == "track" ) then
if ( keyvalues["width"] == nil ) then
keyvalues["width"] = "2"
end
if ((( tonumber(keyvalues["width"]) or 0 ) >= 2 ) or
( keyvalues["width"] == "2 m" ) or
( keyvalues["width"] == "2.5 m" ) or
( keyvalues["width"] == "2.5m" ) or
( keyvalues["width"] == "3 m" ) or
( keyvalues["width"] == "3 metres" ) or
( keyvalues["width"] == "3.5 m" ) or
( keyvalues["width"] == "4 m" ) or
( keyvalues["width"] == "5m" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intpathwide"
else
keyvalues["highway"] = "pathwide"
end
else
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intpathnarrow"
else
keyvalues["highway"] = "pathnarrow"
end
end
end
-- ----------------------------------------------------------------------------
-- Suppress some "demanding" paths. UK examples with sac_scale:
-- alpine_hiking:
-- http://www.openstreetmap.org/way/168426583 Crib Goch, Snowdon
-- demanding_mountain_hiking:
-- http://www.openstreetmap.org/way/114871124 Near Tryfan
-- difficult_alpine_hiking:
-- http://www.openstreetmap.org/way/334306672 Jack's Rake, Pavey Ark
-- ----------------------------------------------------------------------------
if (( keyvalues["designation"] == nil ) and
(( keyvalues["sac_scale"] == "demanding_alpine_hiking" ) or
( keyvalues["sac_scale"] == "difficult_alpine_hiking" ))) then
if ((( tonumber(keyvalues["width"]) or 0 ) >= 2 ) or
( keyvalues["width"] == "2 m" ) or
( keyvalues["width"] == "2.5 m" ) or
( keyvalues["width"] == "3 m" ) or
( keyvalues["width"] == "4 m" )) then
keyvalues["highway"] = "badpathwide"
else
keyvalues["highway"] = "badpathnarrow"
end
end
-- ----------------------------------------------------------------------------
-- The OSM Carto derivative that I'm using still tries to second-guess paths
-- as footway or cycleway. We don't want to do this - set "designated" to
-- "yes"
--
-- First - lose "access=designated", which is meaningless.
-- ----------------------------------------------------------------------------
if ( keyvalues["access"] == "designated" ) then
keyvalues["access"] = nil
end
if ( keyvalues["foot"] == "designated" ) then
keyvalues["foot"] = "yes"
end
if ( keyvalues["bicycle"] == "designated" ) then
keyvalues["bicycle"] = "yes"
end
if ( keyvalues["horse"] == "designated" ) then
keyvalues["horse"] = "yes"
end
-- ----------------------------------------------------------------------------
-- Handle dodgy access tags. Note that this doesn't affect my "designation"
-- processing, but may be used by the main style, as "foot", "bicycle" and
-- "horse" are all in as columns.
-- ----------------------------------------------------------------------------
if (keyvalues["access:foot"] == "yes") then
keyvalues["access:foot"] = nil
keyvalues["foot"] = "yes"
end
if (keyvalues["access:bicycle"] == "yes") then
keyvalues["access:bicycle"] = nil
keyvalues["bicycle"] = "yes"
end
if (keyvalues["access:horse"] == "yes") then
keyvalues["access:horse"] = nil
keyvalues["horse"] = "yes"
end
-- ----------------------------------------------------------------------------
-- On footpaths, if foot=no set access=no
--
-- Tracks etc. that aren't narrow won't be "pathnarrow" at this stage, and we
-- shouldn't set "access" based on "foot"
--
-- Things that are narrow but have a designation will either not be private to
-- foot traffic or should be picked up by the TRO etc. handling below.
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] == "pathnarrow" ) and
(( keyvalues["foot"] == "private" ) or
( keyvalues["foot"] == "no" )) and
(( keyvalues["bicycle"] == nil ) or
( keyvalues["bicycle"] == "private" ) or
( keyvalues["bicycle"] == "no" )) and
(( keyvalues["horse"] == nil ) or
( keyvalues["horse"] == "private" ) or
( keyvalues["horse"] == "no" ))) then
keyvalues["access"] = "no"
end
-- ----------------------------------------------------------------------------
-- When handling TROs etc. we test for "no", not private, hence this change:
-- ----------------------------------------------------------------------------
if ( keyvalues["access"] == "private" ) then
keyvalues["access"] = "no"
end
if ( keyvalues["foot"] == "private" ) then
keyvalues["foot"] = "no"
end
if ( keyvalues["bicycle"] == "private" ) then
keyvalues["bicycle"] = "no"
end
if ( keyvalues["horse"] == "private" ) then
keyvalues["horse"] = "no"
end
-- ----------------------------------------------------------------------------
-- Here we apply the track grade rendering to road designations:
-- unpaved roads unpaved
-- narrow unclassigned_county_road ucrnarrow
-- wide unclassigned_county_road ucrwide
-- narrow BOAT boatnarrow
-- wide BOAT boatwide
-- narrow restricted byway rbynarrow
-- wide restricted byway rbywide
--
-- prow_ref is appended in brackets if present.
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] == "unclassified" ) and
(( keyvalues["surface"] == "unpaved" ) or
( keyvalues["surface"] == "gravel" ))) then
keyvalues["highway"] = "unpaved"
end
if ((( keyvalues["highway"] == "residential" ) or
( keyvalues["highway"] == "service" )) and
(( keyvalues["surface"] == "unpaved" ) or
( keyvalues["surface"] == "gravel" ))) then
keyvalues["highway"] = "track"
end
if (( keyvalues["designation"] == "unclassified_county_road" ) or
( keyvalues["designation"] == "unclassified_country_road" ) or
( keyvalues["designation"] == "unclassified_highway" ) or
( keyvalues["designation"] == "unclassified_road" ) or
( keyvalues["designation"] == "unmade_road" ) or
( keyvalues["designation"] == "public_highway" ) or
( keyvalues["designation"] == "unclassified_highway;public_footpath" ) or
( keyvalues["designation"] == "unmade_road" ) or
( keyvalues["designation"] == "adopted" ) or
( keyvalues["designation"] == "unclassified_highway;public_bridleway" ) or
( keyvalues["designation"] == "adopted highway" ) or
( keyvalues["designation"] == "adopted_highway" ) or
( keyvalues["designation"] == "unclassified_highway;byway_open_to_all_traffic" ) or
( keyvalues["designation"] == "adopted_highway;public_footpath" ) or
( keyvalues["designation"] == "tertiary_highway" ) or
( keyvalues["designation"] == "public_road" ) or
( keyvalues["designation"] == "quiet_lane;unclassified_highway" ) or
( keyvalues["designation"] == "unclassified_highway;quiet_lane" )) then
if (( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "pathnarrow" )) then
keyvalues["highway"] = "ucrnarrow"
else
if (( keyvalues["highway"] == "service" ) or
( keyvalues["highway"] == "road" ) or
( keyvalues["highway"] == "track" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "pathwide" )) then
keyvalues["highway"] = "ucrwide"
end
end
if ( keyvalues["prow_ref"] ~= nil ) then
if ( keyvalues["name"] == nil ) then
keyvalues["name"] = "(" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
else
keyvalues["name"] = keyvalues["name"] .. " (" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
end
end
end
if (( keyvalues["designation"] == "byway_open_to_all_traffic" ) or
( keyvalues["designation"] == "public_byway" ) or
( keyvalues["designation"] == "byway" ) or
( keyvalues["designation"] == "carriageway" )) then
if (( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "pathnarrow" )) then
keyvalues["highway"] = "boatnarrow"
keyvalues["designation"] = "byway_open_to_all_traffic"
else
if (( keyvalues["highway"] == "service" ) or
( keyvalues["highway"] == "road" ) or
( keyvalues["highway"] == "track" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "pathwide" )) then
keyvalues["highway"] = "boatwide"
keyvalues["designation"] = "byway_open_to_all_traffic"
end
end
if ( keyvalues["prow_ref"] ~= nil ) then
if ( keyvalues["name"] == nil ) then
keyvalues["name"] = "(" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
else
keyvalues["name"] = keyvalues["name"] .. " (" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
end
end
end
-- ----------------------------------------------------------------------------
-- Note that a designated restricted_byway up some steps would be rendered
-- as a restricted_byway. I've never seen one though.
-- There is special processing for "public footpath" and "public_bridleway"
-- steps (see below) and non-designated steps are rendered as is by the
-- stylesheet.
-- ----------------------------------------------------------------------------
if (( keyvalues["designation"] == "restricted_byway" ) or
( keyvalues["designation"] == "public_right_of_way" ) or
( keyvalues["designation"] == "unclassified_highway;restricted_byway" ) or
( keyvalues["designation"] == "unknown_byway" ) or
( keyvalues["designation"] == "public_way" ) or
( keyvalues["designation"] == "tertiary_highway;restricted_byway" ) or
( keyvalues["designation"] == "orpa" ) or
( keyvalues["designation"] == "restricted_byway;quiet_lane" )) then
if (( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "pathnarrow" )) then
keyvalues["highway"] = "rbynarrow"
keyvalues["designation"] = "restricted_byway"
else
if (( keyvalues["highway"] == "service" ) or
( keyvalues["highway"] == "road" ) or
( keyvalues["highway"] == "track" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "pathwide" )) then
keyvalues["highway"] = "rbywide"
keyvalues["designation"] = "restricted_byway"
end
end
if ( keyvalues["prow_ref"] ~= nil ) then
if ( keyvalues["name"] == nil ) then
keyvalues["name"] = "(" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
else
keyvalues["name"] = keyvalues["name"] .. " (" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
end
end
end
-- ----------------------------------------------------------------------------
-- When a value is changed we get called again. That's why there's a check
-- for "bridlewaysteps" below "before the only place that it can be set".
-- ----------------------------------------------------------------------------
if (( keyvalues["designation"] == "public_bridleway" ) or
( keyvalues["designation"] == "bridleway" ) or
( keyvalues["designation"] == "tertiary_highway;public_bridleway" ) or
( keyvalues["designation"] == "public_bridleway;public_cycleway" ) or
( keyvalues["designation"] == "public_cycleway;public_bridleway" ) or
( keyvalues["designation"] == "public_bridleway;public_footpath" )) then
if (( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "pathnarrow" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intbridlewaynarrow"
else
keyvalues["highway"] = "bridlewaynarrow"
end
else
if (( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "bridlewaysteps" )) then
keyvalues["highway"] = "bridlewaysteps"
else
if (( keyvalues["highway"] == "service" ) or
( keyvalues["highway"] == "road" ) or
( keyvalues["highway"] == "track" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "pathwide" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intbridlewaywide"
else
keyvalues["highway"] = "bridlewaywide"
end
end
end
end
if ( keyvalues["prow_ref"] ~= nil ) then
if ( keyvalues["name"] == nil ) then
keyvalues["name"] = "(" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
else
keyvalues["name"] = keyvalues["name"] .. " (" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
end
end
end
-- ----------------------------------------------------------------------------
-- When a value is changed we get called again. That's why there's a check
-- for "footwaysteps" below "before the only place that it can be set".
--
-- Rights of way for people on foot are designated as:
-- England and Wales: public_footpath
-- Scotland: core_path (ish - more general acess rights exist)
-- Northern Ireland: public_footpath or PROW (actually "footpath" in law)
-- ----------------------------------------------------------------------------
if (( keyvalues["designation"] == "public_footpath" ) or
( keyvalues["designation"] == "core_path" ) or
( keyvalues["designation"] == "footpath" ) or
( keyvalues["designation"] == "public_footway" ) or
( keyvalues["designation"] == "public_footpath;permissive_bridleway" ) or
( keyvalues["designation"] == "public_footpath;public_cycleway" ) or
( keyvalues["designation"] == "PROW" ) or
( keyvalues["designation"] == "access_land" )) then
if (( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "pathnarrow" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intfootwaynarrow"
else
keyvalues["highway"] = "footwaynarrow"
end
else
if (( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "footwaysteps" )) then
keyvalues["highway"] = "footwaysteps"
else
if (( keyvalues["highway"] == "service" ) or
( keyvalues["highway"] == "road" ) or
( keyvalues["highway"] == "track" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "pathwide" )) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intfootwaywide"
else
keyvalues["highway"] = "footwaywide"
end
end
end
end
if ( keyvalues["prow_ref"] ~= nil ) then
if ( keyvalues["name"] == nil ) then
keyvalues["name"] = "(" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
else
keyvalues["name"] = keyvalues["name"] .. " (" .. keyvalues["prow_ref"] .. ")"
keyvalues["prow_ref"] = nil
end
end
end
-- ----------------------------------------------------------------------------
-- If something is still "track" by this point change it to pathwide.
-- ----------------------------------------------------------------------------
if ( keyvalues["highway"] == "track" ) then
if (( keyvalues["trail_visibility"] == "bad" ) or
( keyvalues["trail_visibility"] == "intermediate" )) then
keyvalues["highway"] = "intpathwide"
else
keyvalues["highway"] = "pathwide"
end
end
-- ----------------------------------------------------------------------------
-- Treat access=permit as access=no (which is what we have set "private" to
-- above).
-- ----------------------------------------------------------------------------
if (( keyvalues["access"] == "permit" ) or
( keyvalues["access"] == "agricultural" ) or
( keyvalues["access"] == "forestry" ) or
( keyvalues["access"] == "delivery" ) or
( keyvalues["access"] == "military" )) then
keyvalues["access"] = "no"
end
if ( keyvalues["access"] == "customers" ) then
keyvalues["access"] = "destination"
end
-- ----------------------------------------------------------------------------
-- Don't make driveways with a designation disappear.
-- ----------------------------------------------------------------------------
if (( keyvalues["service"] == "driveway" ) and
(( keyvalues["designation"] == "public_footpath" ) or
( keyvalues["designation"] == "public_bridleway" ) or
( keyvalues["designation"] == "restricted_byway" ) or
( keyvalues["designation"] == "byway_open_to_all_traffic" ) or
( keyvalues["designation"] == "unclassified_county_road" ) or
( keyvalues["designation"] == "unclassified_country_road" ) or
( keyvalues["designation"] == "unclassified_highway" ))) then
keyvalues["service"] = nil
end
-- ----------------------------------------------------------------------------
-- If motor_vehicle=no is set on a BOAT, it's probably a TRO, so display as
-- an RBY instead
-- ----------------------------------------------------------------------------
if (( keyvalues["highway"] == "boatwide" ) and
( keyvalues["motor_vehicle"] == "no" )) then
keyvalues["highway"] = "rbywide"
end
if (( keyvalues["highway"] == "boatnarrow" ) and
( keyvalues["motor_vehicle"] == "no" )) then
keyvalues["highway"] = "rbynarrow"
end
-- ----------------------------------------------------------------------------
-- Try and detect genuinely closed public footpaths, bridleways (not just those
-- closed to motor traffic etc.). Examples with "access=no/private" are
-- picked up below; we need to make sure that those that do not get an
-- access=private tag first.
-- ----------------------------------------------------------------------------
if (( keyvalues["access"] == nil ) and
(( keyvalues["designation"] == "public_footpath" ) or
( keyvalues["designation"] == "public_bridleway" ) or
( keyvalues["designation"] == "restricted_byway" ) or
( keyvalues["designation"] == "byway_open_to_all_traffic" ) or
( keyvalues["designation"] == "unclassified_county_road" ) or
( keyvalues["designation"] == "unclassified_country_road" ) or
( keyvalues["designation"] == "unclassified_highway" )) and
( keyvalues["foot"] == "no" )) then
keyvalues["access"] = "no"
end
-- ----------------------------------------------------------------------------
-- The extra information "and"ed with "public_footpath" below checks that
-- "It's access=private and designation=public_footpath, and ordinarily we'd
-- just remove the access=private tag as you ought to be able to walk there,
-- unless there isn't foot=yes/designated to say you can, or there is an
-- explicit foot=no".
-- ----------------------------------------------------------------------------
if ((( keyvalues["access"] == "no" ) or
( keyvalues["access"] == "destination" )) and
(((( keyvalues["designation"] == "public_footpath" ) or
( keyvalues["designation"] == "public_bridleway" ) or
( keyvalues["designation"] == "restricted_byway" ) or
( keyvalues["designation"] == "byway_open_to_all_traffic" ) or
( keyvalues["designation"] == "unclassified_county_road" ) or
( keyvalues["designation"] == "unclassified_country_road" ) or
( keyvalues["designation"] == "unclassified_highway" )) and
( keyvalues["foot"] ~= nil ) and
( keyvalues["foot"] ~= "no" )) or
((( keyvalues["highway"] == "pathnarrow" ) or
( keyvalues["highway"] == "pathwide" ) or
( keyvalues["highway"] == "intpathnarrow" ) or
( keyvalues["highway"] == "intpathwide" ) or
( keyvalues["highway"] == "service" )) and
(( keyvalues["foot"] == "permissive" ) or
( keyvalues["foot"] == "yes" ))))) then
keyvalues["access"] = nil
end
-- ----------------------------------------------------------------------------
-- Render national parks and AONBs as such no matter how they are tagged.
--
-- Any with "boundary=national_park" set already will be included and won't
-- be affected by this. Most national parks and AONBs in UK have
-- "protect_class=5", but also have one of the "designation" values below.
-- Many smaller nature reserves have other values for designation and are
-- ignored here.
--
-- Previously this section also had "protect_class=2" because IE ones had that
-- and not "boundary"="national_park", but that situation seems to have changed.
-- ----------------------------------------------------------------------------
if (( keyvalues["boundary"] == "protected_area" ) and
(( keyvalues["designation"] == "national_park" ) or
( keyvalues["designation"] == "area_of_outstanding_natural_beauty" ) or
( keyvalues["designation"] == "national_scenic_area" ))) then
keyvalues["boundary"] = "national_park"
keyvalues["protect_class"] = nil
end
-- ----------------------------------------------------------------------------
-- Access land is shown with a high-zoom yellow border (to contrast with the
-- high-zoom green border of nature reserves) and with a low-opacity
-- yellow fill at all zoom levels (to contrast with the low-opacity green fill
-- at low zoom levels of nature reserves.
-- ----------------------------------------------------------------------------
if (( keyvalues["designation"] == "access_land" ) and
(( keyvalues["boundary"] == nil ) or
( keyvalues["boundary"] == "protected_area" )) and
( keyvalues["highway"] == nil )) then
keyvalues["boundary"] = "access_land"
end
-- ----------------------------------------------------------------------------
-- Render certain protect classes and designations of protected areas as
-- nature_reserve:
-- protect_class==1 "... strictly set aside to protect ... " (all sorts)
-- protect_class==4 "Habitat/Species Management Area"
--
-- There are a few instances of "leisure" being set to something else already
-- ("common", "park", "golf_course", "dog_park"). We leave that if so.
--
-- This selection does not currently include:
-- protect_class==98 "intercontinental treaties..." (e.g. world heritage)
-- ----------------------------------------------------------------------------
if ((( keyvalues["boundary"] == "protected_area" ) and
(( keyvalues["protect_class"] == "1" ) or
( keyvalues["protect_class"] == "2" ) or
( keyvalues["protect_class"] == "4" ) or
( keyvalues["designation"] == "national_nature_reserve" ) or
( keyvalues["designation"] == "local_nature_reserve" ) or
( keyvalues["designation"] == "Nature Reserve" ) or
( keyvalues["designation"] == "Marine Conservation Zone" ))) and
( keyvalues["leisure"] == nil )) then
keyvalues["leisure"] = "nature_reserve"
end
-- ----------------------------------------------------------------------------
-- Show grass schoolyards as green
-- ----------------------------------------------------------------------------
if (( keyvalues["leisure"] == "schoolyard" ) and
( keyvalues["surface"] == "grass" )) then
keyvalues["landuse"] = "grass"
keyvalues["leisure"] = nil
keyvalues["surface"] = nil
end
-- ----------------------------------------------------------------------------
-- "Nature reserve" doesn't say anything about what's inside; but one UK OSMer
-- changed "landuse" to "surface" (changeset 98859964). This undoes that.
-- ----------------------------------------------------------------------------
if (( keyvalues["leisure"] == "nature_reserve" ) and
( keyvalues["surface"] == "grass" )) then
keyvalues["landuse"] = "grass"
keyvalues["surface"] = nil
end
-- ----------------------------------------------------------------------------
-- Treat landcover=grass as landuse=grass
-- Also landuse=college_court, flowerbed
-- ----------------------------------------------------------------------------
if (( keyvalues["landcover"] == "grass" ) or
( keyvalues["landuse"] == "college_court" ) or
( keyvalues["landuse"] == "flowerbed" )) then
keyvalues["landcover"] = nil
keyvalues["landuse"] = "grass"
end
-- ----------------------------------------------------------------------------
-- Treat natural=grass as landuse=grass
-- if there is no other more appropriate tag
-- ----------------------------------------------------------------------------
if (( keyvalues["natural"] == "grass" ) and
(( keyvalues["landuse"] == nil ) and
( keyvalues["leisure"] == nil ) and
( keyvalues["aeroway"] == nil ))) then
keyvalues["landuse"] = "grass"
end