mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-12-25 06:26:42 +01:00
42 lines
No EOL
1.1 KiB
Text
42 lines
No EOL
1.1 KiB
Text
function Node_FFT(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
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name = "FFT";
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setDimension(96, 72);
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inputs[0] = nodeValue_Float("Data", self, [])
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.setArrayDepth(1)
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.setVisible(true, true);
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inputs[1] = nodeValue_Enum_Scroll("Preprocess Function", self, 0, [ "None", "Hann" ]);
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outputs[0] = nodeValue_Output("Array", self, VALUE_TYPE.float, [])
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.setArrayDepth(1);
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static processData = function(_outSurf, _data, _output_index, _array_index) {
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var _dat = _data[0];
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var _pre = _data[1];
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var _cmp = [];
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var N = array_length(_dat);
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for( var i = 0; i < N; i++ ) {
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var val = _dat[i];
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if(_pre == 1) val = 0.5 * (1 - cos(2 * pi * i / (N - 1)));
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_cmp[i] = new Complex(val);
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}
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var _res = FFT(_cmp);
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var _r = array_create(array_length(_res));
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for( var i = 0, n = array_length(_res); i < n; i++ )
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_r[i] = sqrt(sqr(_res[i].re) + sqr(_res[i].im));
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return _r;
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}
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static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) {
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var bbox = drawGetBbox(xx, yy, _s);
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draw_sprite_fit(s_node_FFT, 0, bbox.xc, bbox.yc, bbox.w, bbox.h);
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}
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} |