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Tweak LFO script

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* thin automation to prevent too dense events
* add icon (cosine wave)
This commit is contained in:
Robin Gareus 2019-11-17 14:51:33 +01:00
parent 8e8249b595
commit 81d8f0faa7
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1 changed files with 16 additions and 0 deletions
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16
scripts/lfo_automation.lua
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@ -160,6 +160,9 @@ function factory (unused_params)
end end
end end
-- remove dense events
al:thin (20) -- threashold of area below curve
-- TODO: display the modified automation lane in the time line in order to make the change visible! -- TODO: display the modified automation lane in the time line in order to make the change visible!
-- Save undo -- Save undo
@ -171,3 +174,16 @@ function factory (unused_params)
collectgarbage() collectgarbage()
end end
end end
function icon (params) return function (ctx, width, height, fg)
local wh = math.min (width, height) * .5
local x0 = math.ceil (wh * .2)
local x1 = math.floor (wh * 1.8)
ctx:set_line_width (1)
ctx:set_source_rgba (ARDOUR.LuaAPI.color_to_rgba (fg))
ctx:move_to (x0, wh * 1.5)
for x = x0, x1 do
ctx:line_to (x, wh + math.cos (3 * math.pi * (x-x0) / (x1-x0)) * wh * .5)
end
ctx:stroke ()
end end