Module:Location map/sandbox2 explained

--

=-- Module:Location_map/sandbox2 - Map marker with autofixing--

=---- This version of Module:Location_map will autofix the-- parameters, to attempt to display a map marker even-- though the parameters might be invalid.--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) / multend

local function getMapParams(map, frame) if mw.title.new('Module:Location map/data/' .. map).exists then local mapData = mw.loadData('Module:Location map/data/' .. map) 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 else if cache[name]

nil then cache[name] = frame:expandTemplate end return cache[name] end end endend

local function decdeg(degrees, minutes, seconds, hemisphere, digits, decimal) if degrees

nil then local n = tonumber(decimal); if n

nil then n = tonumber(string.sub(decimal,1,-2)); end if n

nil then n = tonumber(string.sub(decimal,1,-3)); end return n 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 .. '

style="width:' .. (width + 2) .. 'px; ' if args.border

'none' then retval = retval .. 'border: none;' elseif args.border then retval = retval .. 'border-color:' .. args.border .. ';' end 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 retvalend

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 args.lon_deg

nil then local n = tonumber(args.long); if n

nil then if caption

nil then caption= end caption = caption .. " ^{[fix long=" ..args.long.. "]}" end end if args.lat_deg

nil then local n = tonumber(args.lat); if n

nil then if caption

nil then caption= end caption = caption .. " ^{[fix lat=" ..args.lat.. "]}" end end 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 retvalend

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

local function getX(longitude, latitude, lon_dir, left, right, top, bottom, crosses180, skew, lon_shift) local crosses180_correction = crosses180 and lon_dir

'W' and (-36000/(left - right)) or 0 if skew then local lat_ratio = (top - latitude)/(top - bottom) local skew_factor = (1 - skew) * lat_ratio + skew longitude = (longitude - 0.5 * (right + left) + lon_shift) * skew_factor + 0.5 * (right + left) - lon_shift end return round(crosses180_correction + 100 * (longitude - left) / (right - left), 1)end

local function getY(latitude, top, bottom) return round(100 * (top - latitude) / (top - bottom), 1)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, longitude, latitide longitude = decdeg(args.lon_deg, args.lon_min, args.lon_sec, args.lon_dir, nil, args.long) latitude = decdeg(args.lat_deg, args.lat_min, args.lat_sec, args.lat_dir, nil, args.lat) if map('x') ~= then x = frame:callParserFunction('#expr', map('x',)) else x = getX(longitude, latitude, args.lon_dir, map('left'), map('right'), map('top'), map('bottom'), map('crosses180') ~= , tonumber(args.skew or map('skew')), args.lon_shift or 0) end if map('y') ~= then y = frame:callParserFunction('#expr', map('y',)) else y = getY(latitude, map('top'), map('bottom')) 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