local mf = require('Module:Mapframe')
-- Defaults
local DEFAULT_FRAME_WIDTH = "260"
local DEFAULT_FRAME_HEIGHT = "260"
local DEFAULT_ZOOM = "15"
local DEFAULT_GEOMASK_STROKE_WIDTH = "1"
local DEFAULT_GEOMASK_STROKE_COLOR = "#777777"
local DEFAULT_GEOMASK_FILL = "#888888"
local DEFAULT_SHAPE_STROKE_WIDTH = "3"
local DEFAULT_SHAPE_STROKE_COLOR = "#FF0000"
local DEFAULT_SHAPE_FILL = "#606060"
local DEFAULT_LINE_STROKE_WIDTH = "5"
local DEFAULT_LINE_STROKE_COLOR = "#FF0000"
local DEFAULT_MARKER_COLOR = "#5E74F3"
-- Trim whitespace from args, and remove empty args
function trimArgs(argsTable)
local cleanArgs = {}
for key, val in pairs(argsTable) do
if type(val) == 'string' then
val = val:match('^%s*(.-)%s*$')
if val ~= '' then
cleanArgs[key] = val
end
else
cleanArgs[key] = val
end
end
return cleanArgs
end
function getBestStatement(item_id, property_id)
if not(item_id) or not(mw.wikibase.isValidEntityId(item_id)) or not(mw.wikibase.entityExists(item_id)) then
return false
end
local statements = mw.wikibase.getBestStatements(item_id, property_id)
if not statements or #statements == 0 then
return false
end
local hasNoValue = ( statements[1].mainsnak and statements[1].mainsnak.snaktype == 'novalue' )
if hasNoValue then
return false
end
return statements[1]
end
function hasWikidataProperty(item_id, property_id)
return getBestStatement(item_id, property_id) and true or false
end
function getStatementValue(statement)
return statement and statement.mainsnak and statement.mainsnak.datavalue and statement.mainsnak.datavalue.value or nil
end
function relatedEntity(item_id, property_id)
local value = getStatementValue( getBestStatement(item_id, property_id) )
return value and value.id or false
end
function idType(id)
if not id then
return nil
elseif mw.ustring.match(id, "[Pp]%d+") then
return "property"
elseif mw.ustring.match(id, "[Qq]%d+") then
return "item"
else
return nil
end
end
function getZoom(value, unit)
local length_km
if unit == 'km' then
length_km = tonumber(value)
elseif unit == 'mi' then
length_km = tonumber(value)*1.609344
elseif unit == 'km2' then
length_km = math.sqrt(tonumber(value))
elseif unit == 'mi2' then
length_km = math.sqrt(tonumber(value))*1.609344
end
-- max for zoom 2 is 6400km, for zoom 3 is 3200km, for zoom 4 is 1600km, etc
local zoom = math.floor(8 - (math.log10(length_km) - 2)/(math.log10(2)))
-- limit to values below 17
zoom = math.min(17, zoom)
-- take off 1 when calculated from area, to account for unusual shapes
if unit == 'km2' or unit == 'mi2' then
zoom = zoom - 1
end
-- minimum value is 1
return math.max(1, zoom)
end
local p = {}
p.main = function(frame)
local parent = frame.getParent(frame)
local parentArgs = parent.args
local mapframe = p._main(parentArgs)
return frame:preprocess(mapframe)
end
p._main = function(_config)
-- `config` is the args passed to this module
local config = trimArgs(_config)
-- Use wikidata by default
local useWikidata = true
-- Do not use wikidata when coords are specified, unless explicitly set
if config.coord then
useWikidata = config.wikidata and true or false
end
-- Require wikidata item, or specified coords
local wikidataId = config.id or mw.wikibase.getEntityIdForCurrentPage()
if not(wikidataId) and not(config.coord) then
return ''
end
-- Require coords (specified or from wikidata), so that map will be centred somewhere
-- (P625 = coordinate location)
local hasCoordinates = hasWikidataProperty(wikidataId, 'P625') or config.coordinates or config.coord
if not hasCoordinates then
return ''
end
-- `args` is the arguments which will be passed to the mapframe module
local args = {}
-- Some defaults/overrides for infobox presentation
args.display = "inline"
args.frame = "yes"
args.plain = "yes"
args["frame-width"] = config["frame-width"] or DEFAULT_FRAME_WIDTH
args["frame-height"] = config["frame-height"] or DEFAULT_FRAME_HEIGHT
args["frame-align"] = "center"
args["frame-coord"] = config["frame-coordinates"] or config["frame-coord"] or ""
-- Note: config["coordinates"] or config["coord"] should not be used for the alignment of the frame;
-- see talk page ( https://en.wikipedia.org/wiki/Special:Diff/876492931 )
-- deprecated lat and long parameters
args["frame-lat"] = config["frame-lat"] or config["frame-latitude"] or ""
args["frame-long"] = config["frame-long"] or config["frame-longitude"] or ""
-- Calculate zoom from length or area (converted to km or km2)
if config.length_km then
args.zoom = getZoom(config.length_km, 'km')
elseif config.length_mi then
args.zoom = getZoom(config.length_mi, 'mi')
elseif config.area_km2 then
args.zoom = getZoom(config.area_km2, 'km2')
elseif config.area_mi2 then
args.zoom = getZoom(config.area_mi2, 'mi2')
else
args.zoom = config.zoom or DEFAULT_ZOOM
end
-- Conditionals: whether point, geomask should be shown
local hasOsmRelationId = hasWikidataProperty(wikidataId, 'P402') -- P402 is OSM relation ID
local shouldShowPointMarker = not(hasOsmRelationId) or (config.marker and config.marker ~= 'none') or (config.coordinates or config.coord)
local maskItem
local maskType = idType(config.geomask)
if maskType == 'item' then
maskItem = config.geomask
elseif maskType == "property" then
maskItem = relatedEntity(wikidataId, config.geomask)
end
-- Keep track of arg numbering
local argNumber = ''
local function incrementArgNumber()
if argNumber == '' then
argNumber = 2
else
argNumber = argNumber + 1
end
end
-- Geomask
if maskItem then
args["type"..argNumber] = "shape-inverse"
args["id"..argNumber] = maskItem
args["stroke-width"..argNumber] = config["geomask-stroke-width"] or DEFAULT_GEOMASK_STROKE_WIDTH
args["stroke-color"..argNumber] = config["geomask-stroke-color"] or config["geomask-stroke-colour"] or DEFAULT_GEOMASK_STROKE_COLOR
args["fill"..argNumber] = config["geomask-fill"] or DEFAULT_GEOMASK_FILL
-- Recalculate zoom based on mask area, if available, and not set in config
if not config.zoom then
local maskArea = getStatementValue( getBestStatement(maskItem, 'P2046') )
if maskArea and maskArea.amount then
if maskArea.unit == 'http://www.wikidata.org/entity/Q712226' then -- square kilometre
args.zoom = getZoom(maskArea.amount, 'km2')
elseif maskArea.unit == 'http://www.wikidata.org/entity/Q232291' then -- square mile
args.zoom = getZoom(maskArea.amount, 'mi2')
end
end
end
incrementArgNumber()
end
-- Shape
if useWikidata then
args["type"..argNumber] = "shape"
if config.id then args["id"..argNumber] = config.id end
args["stroke-width"..argNumber] = config["shape-stroke-width"] or config["stroke-width"] or DEFAULT_SHAPE_STROKE_WIDTH
args["stroke-color"..argNumber] = config["shape-stroke-color"] or config["shape-stroke-colour"] or config["stroke-color"] or config["stroke-colour"] or DEFAULT_SHAPE_STROKE_COLOR
args["fill"..argNumber] = config["shape-fill"] or DEFAULT_SHAPE_FILL
incrementArgNumber()
end
-- Line
if useWikidata then
args["type"..argNumber] = "line"
if config.id then args["id"..argNumber] = config.id end
args["stroke-width"..argNumber] = config["line-stroke-width"] or config["stroke-width"] or DEFAULT_LINE_STROKE_WIDTH
args["stroke-color"..argNumber] = config["line-stroke-color"] or config["line-stroke-colour"] or config["stroke-color"] or config["stroke-colour"] or DEFAULT_LINE_STROKE_COLOR
incrementArgNumber()
end
-- Point
if shouldShowPointMarker then
args["type"..argNumber] = "point"
if config.id then args["id"..argNumber] = config.id end
if config.coord then args["coord"..argNumber] = config.coord end
if config.marker then args["marker"..argNumber] = config.marker end
args["marker-color"..argNumber] = config["marker-color"] or config["marker-colour"] or DEFAULT_MARKER_COLOR
incrementArgNumber()
end
local mapframe = mf._main(args)
local tracking = hasOsmRelationId and '' or ''
return mapframe .. tracking
end
return p
