Module:Coordinates

Documentation for this module may be created at Module:Coordinates/doc

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local p = {}

function p.coord(frame)
    local args = frame:getParent().args
    local lat = tonumber(args[1])
    local lon = tonumber(args[2])
    local display = args.display or args[3] or 'inline'
    local name = args.name or ''
    
    if not lat or not lon then
        return '<span class="error">Error: Invalid coordinates</span>'
    end
    
    -- Format coordinates for display
    local function formatCoord(value, isLat)
        local direction
        if isLat then
            direction = value >= 0 and "N" or "S"
        else
            direction = value >= 0 and "E" or "W"
        end
        value = math.abs(value)
        
        local degrees = math.floor(value)
        local minutes = (value - degrees) * 60
        
        return string.format("%d°%.4f′%s", degrees, minutes, direction)
    end
    
    local latStr = formatCoord(lat, true)
    local lonStr = formatCoord(lon, false)
    local displayText = latStr .. " " .. lonStr
    
    -- Create map links
    local googleMaps = string.format("https://www.google.com/maps?q=%f,%f", lat, lon)
    local osmLink = string.format("https://www.openstreetmap.org/?mlat=%f&mlon=%f&zoom=15", lat, lon)
    
    -- Build output
    local output = '<span class="geo">'
    output = output .. '<span class="plainlinks">'
    output = output .. '[' .. googleMaps .. ' ' .. displayText .. ']'
    output = output .. '</span>'
    output = output .. '</span>'
    
    -- Add microformat data
    output = output .. '<span style="display:none">'
    output = output .. '<span class="geo-dec" title="' .. lat .. '; ' .. lon .. '">' .. lat .. '; ' .. lon .. '</span>'
    output = output .. '</span>'
    
    -- Handle display parameter
    if display == 'title' or display == 'inline,title' then
        -- Add to page title (coordinates appear at top right)
        output = '<span id="coordinates">' .. output .. '</span>'
    end
    
    return output
end

return p