Xenharmonic Wiki

Module:Mediants: Difference between revisions

← Older editNewer edit →
Ganaram inukshuk (talk | contribs)
autopatrolled, emailconfirmed
6,211 edits
m Comments, testing
Ganaram inukshuk (talk | contribs)
autopatrolled, emailconfirmed
6,211 edits
Changed code to accept initial ratios in an array
Line 1: Line 1:
local mos = require("Module:MOS")
local mos = require("Module:MOS") -- For testing
local utils = require("Module:Utils") -- For testing
local p = {}
local p = {}


-- Module for finding mediants, either by search depth or by search function.
-- Module for finding mediants, either by search depth or by search function.


function p.find_mediants_by_depth(start_ratio_1, start_ratio_2, depth)
function p.find_mediants_by_depth(init_ratios, depth)
local start_ratio_1 = start_ratio_1 or {1, 1}
local init_ratios = init_ratios or {{1,1}, {1,0}}
local start_ratio_2 = start_ratio_2 or {1, 0}
local depth = depth or 5
local depth = depth or 5
local ratios = { start_ratio_1, start_ratio_2 }
local ratios = {}
for i = 1, #init_ratios do
table.insert(ratios, init_ratios[i])
end
for i = 1, depth do
for i = 1, depth do
Line 56: Line 59:
end
end


function p.find_mediants_by_filter(start_ratio_1, start_ratio_2, filter, filter_arg)
function p.find_mediants_by_filter(init_ratios, filter, filter_arg)
local start_ratio_1 = start_ratio_1 or {1, 1}
local init_ratios = init_ratios or {{1,1}, {1,0}}
local start_ratio_2 = start_ratio_2 or {1, 0}
local ratios = { start_ratio_1, start_ratio_2 }
local ratios = {}
for i = 1, #init_ratios do
table.insert(ratios, init_ratios[i])
end
local new_ratios_added = true
local new_ratios_added = true
Line 83: Line 88:
local func = p.int_limit_filter
local func = p.int_limit_filter
local ratios = p.find_mediants_by_filter({1,1}, {1,0}, func, 15)
local ratios = p.find_mediants_by_filter({{1,1}, {1,0}}, func, 12)
ratios = p.find_mediants_by_depth({{1,1}, {1,0}}, 5)
local generators = {}
local generators = {}
for i = 1, #ratios do
for i = 1, #ratios do
local input_mos = mos.new(5,2)
local input_mos = mos.new(5,2)
local gen = mos.bright_gen_to_cents(input_mos, ratios[i])
local gen = mos.bright_gen_to_cents(input_mos, ratios[i])
local edo = ratios[i][1] * 5 + ratios[i][2] * 2
local gcd = utils._gcd(ratios[i][1], ratios[i][2])
local new_string = string.format("%s:%s\t%sedo\t%.3f", ratios[i][1], ratios[i][2], edo, gen)
local edo = (ratios[i][1] * 5 + ratios[i][2] * 2)/gcd
local new_string = string.format("%s:%s\t%sedo\t%.3f", ratios[i][1]/gcd, ratios[i][2]/gcd, edo, gen)
table.insert(generators, new_string)
table.insert(generators, new_string)
end
end
Retrieved from "https://en.xen.wiki/w/Module:Mediants"