Module:Location map

local p = {}

local getArgs = require('Module:Arguments').getArgs

local function round(n, digits) local mult = math.pow(10, digits) return math.floor(n * mult + 0.5) / mult end

local function getMapParams(map, frame) local success, mapData = pcall(mw.loadData, 'Module:Location map/data/' .. map) if success then return function(name, params) if mapData[name] == nil then return '' elseif params then return mw.message.newRawMessage(mapData[name], unpack(params)):plain else return mapData[name] end end else local cache = {} return function(name, params) if params then return frame:expandTemplate{title = 'Location map ' .. map, args = { name, unpack(params) }} else if cache[name] == nil then cache[name] = frame:expandTemplate{title = 'Location map ' .. map, args = { name }} end return cache[name] end end end end

local function decdeg(degrees, minutes, seconds, hemisphere, digits, decimal) if degrees == nil then return tonumber(decimal) end decimal = (degrees or 0) + (minutes or 0)/60 + (seconds or 0)/3600 if hemisphere == 'W' or hemisphere == 'w' or hemisphere == 'S' or hemisphere == 's' then decimal = -decimal end if digits == nil then digits = 7 end return round(decimal, digits) end

function p.top(frame, args, map) if not args then args = getArgs(frame) end if not map then map = getMapParams(args[1], frame) end local width if args.width then width = mw.ustring.gsub(args.width, 'px', '') else width = round((args.default_width or 240) * (tonumber(map('defaultscale')) or 1), 0) end local retval = '' if args.float == 'center' then retval = retval .. ' '	end if args.caption then retval = retval .. '' else retval = retval .. ' ' end local image if args.AlternativeMap then image = args.AlternativeMap elseif args.relief and map('image1') ~= '' then image = map('image1') else image = map('image') end retval = retval .. ''	if args.overlay_image then retval = retval .. ' '	end return retval end

function p.bottom(frame, args, map) if not args then args = getArgs(frame) end if not map then map = getMapParams(args[1], frame) end local retval = '' retval = retval .. ' '	local caption = frame.args.caption or frame:getParent.args.caption if caption and not args.caption_undefined then retval = retval .. mw.text.trim(caption) else retval = retval .. (args.label or mw.title.getCurrentTitle.text) .. ' (' .. map('name') .. ')' end retval = retval .. '  '	if args.float == 'center' then retval = retval .. ' '	end return retval end

function p.container(frame, args, map) if not args then args = getArgs(frame) end if not map then map = getMapParams(args[1], frame) end return p.top(frame, args, map) .. (args.places or '') .. p.bottom(frame, args, map) end

local function markOuterDiv(x, y, content) return ' ' .. content .. ' ' end

local function markImageDiv(mark, marksize, label, link, alt, title) local retval = ''	if marksize ~= 0 then retval = retval .. ''	end return retval .. ' ' end

local function markLabelDiv(label, label_size, label_width, position, background, x) local retval = ' 70 and position ~= 'right') then -- specified left or autodetected to left		retval = retval .. 'left:-6.5em;text-align:right'	else -- specified right or autodetected to right		retval = retval .. 'left:0.5em;text-align:left'	end	retval = retval .. '">' .. label .. ' ' end

function p.mark(frame, args, map) if not args then args = getArgs(frame) end if not map then map = getMapParams(args[1], frame) end local x, y	if map('x') ~= '' then x = frame:callParserFunction('#expr', map('x', { decdeg(args.lat_deg, args.lat_min, args.lat_sec, args.lat_dir, nil, args.lat), decdeg(args.lon_deg, args.lon_min, args.lon_sec, args.lon_dir, nil, args.long) })) else local crosses180_correction = map('crosses180') ~= '' and args.lon_dir == 'W' and (-36000/(map('left') - map('right'))) or 0 x = round(crosses180_correction + 100 * (decdeg(args.lon_deg, args.lon_min, args.lon_sec, args.lon_dir, nil, args.long) - map('left')) / (map('right') - map('left')), 1) end if map('y') ~= '' then y = frame:callParserFunction('#expr', map('y', { decdeg(args.lat_deg, args.lat_min, args.lat_sec, args.lat_dir, nil, args.lat), decdeg(args.lon_deg, args.lon_min, args.lon_sec, args.lon_dir, nil, args.long) })) else y = round(100 * (map('top') - decdeg(args.lat_deg, args.lat_min, args.lat_sec, args.lat_dir, nil, args.lat) ) / (map('top') - map('bottom')), 1) end local mark = args.mark or map('mark') if mark == '' then mark = 'Red pog.svg' end local divContent = markImageDiv(mark, tonumber(args.marksize) or tonumber(map('marksize')) or 8, args.label or mw.title.getCurrentTitle.text, args.link or '', args.alt, args[2]) if args.label and args.position ~= 'none' then divContent = divContent .. markLabelDiv(args.label, args.label_size or 90, args.label_width or 6, args.position, args.background, x)	end return markOuterDiv(x, y, divContent) end

function p.main(frame, args, map) if not args then args = getArgs(frame) end if not args[1] then args[1] = 'World' end if not map then map = getMapParams(args[1], frame) end return p.top(frame, args, map) .. p.mark(frame, args, map) .. p.bottom(frame, args, map) end

return p