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Module:Chord edo approximation: Difference between revisions

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Pailiaq (talk | contribs)
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Pailiaq (talk | contribs)
421 edits
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-- ===== CONFIGURATION VARIABLES =====
-- ===== CONFIGURATION VARIABLES =====
local DEFAULT_ERROR_BASE = 5         -- Base tolerance %
local DEFAULT_ERROR_BASE = 5
local DEFAULT_ERROR_PER_INTERVAL = 10 -- Added per interval above root
local DEFAULT_ERROR_PER_INTERVAL = 10
local DEFAULT_MIN_EDO = 5
local DEFAULT_MIN_EDO = 5
local DEFAULT_MAX_EDO = 60
local DEFAULT_MAX_EDO = 60
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     local chord_str = args.chord or args[1]
     local chord_str = args.chord or args[1]
     local chord_name = args.chord_name
     local chord_name = args.chord_name
     local max_total_error = tonumber(args.max_total_error) -- may be nil; computed below if not provided
     local max_total_error = tonumber(args.max_total_error)
     local min_edo = tonumber(args.min_edo) or DEFAULT_MIN_EDO
     local min_edo = tonumber(args.min_edo) or DEFAULT_MIN_EDO
     local max_edo = tonumber(args.max_edo) or DEFAULT_MAX_EDO
     local max_edo = tonumber(args.max_edo) or DEFAULT_MAX_EDO
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     end
     end


    -- Dynamic default tolerance: scales with chord size — 5 + 10·(notes - 1)
    -- So dyad=15%, triad=25%, tetrad=35%, pentad=45%, etc.
     if not max_total_error then
     if not max_total_error then
         max_total_error = DEFAULT_ERROR_BASE + DEFAULT_ERROR_PER_INTERVAL * (#notes - 1)
         max_total_error = DEFAULT_ERROR_BASE + DEFAULT_ERROR_PER_INTERVAL * (#notes - 1)
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         return "No edos found within total relative error tolerance of " .. max_total_error .. "%"
         return "No edos found within total relative error tolerance of " .. max_total_error .. "%"
     end
     end
    -- Build JI play button: raw cents, no EDO involved
    local ji_cents_parts = {"0"}
    for _, c in ipairs(intervals_cents) do
        table.insert(ji_cents_parts, string.format("%.4f", c))
    end
    local ji_cents_data = table.concat(ji_cents_parts, ",")
    local ji_play_btn = string.format(
        '<span class="edo-chord-play ji" data-cents="%s" title="Play %s in just intonation" role="button" tabindex="0">▶</span>',
        ji_cents_data, chord_str)


     local output = {}
     local output = {}
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     local caption_main
     local caption_main
     if display_name ~= chord_str then
     if display_name ~= chord_str then
         caption_main = string.format("Edo&nbsp;approximations&nbsp;for&nbsp;%s&nbsp;(%s)", display_name, chord_str)
         caption_main = string.format("Edo&nbsp;approximations&nbsp;for&nbsp;%s&nbsp;(%s)&nbsp;%s", display_name, chord_str, ji_play_btn)
     else
     else
         caption_main = string.format("Edo&nbsp;approximations&nbsp;for&nbsp;%s", display_name)
         caption_main = string.format("Edo&nbsp;approximations&nbsp;for&nbsp;%s&nbsp;%s", display_name, ji_play_btn)
     end
     end


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