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Changed draw_sound_frequency_2d #5

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Merged
press-stuart merged 1 commit into from
Apr 6, 2025
Merged

Changed draw_sound_frequency_2d #5

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62 changes: 8 additions & 54 deletions src/bundles/plotly/functions.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -5,11 +5,11 @@

import context from 'js-slang/context';
import Plotly, { type Data, type Layout } from 'plotly.js-dist';
import { list_to_vector } from 'js-slang/dist/stdlib/list';
import { type Sound } from '../sound/types';
import type {
TimeSamples,
FrequencySample,
FrequencySamples,
FrequencyList,
} from '../sound_fft/types';
import { generatePlot } from './curve_functions';
import {
Expand Down Expand Up @@ -468,67 +468,21 @@ export const draw_sound_2d = (sound: Sound) => {
}
};

/**
* Visualizes time-domain samples of a sound on a 2d line graph
* @param samples the time-domain samples of a sound to be visualized on plotly
*/
export const draw_sound_time_samples_2d = (samples: TimeSamples) => {
const FS: number = 44100; // Output sample rate

const x_s: number[] = [];
const y_s: number[] = [];
const len: number = samples.length;

for (let i = 0; i < len; i += 1) {
x_s.push(i / FS);
y_s.push(samples[i]);
}

const plotlyData: Data = {
x: x_s,
y: y_s
};
const plot = new CurvePlot(
draw_new_curve,
{
...plotlyData,
type: 'scattergl',
mode: 'lines',
line: { width: 0.5 }
} as Data,
{
xaxis: {
type: 'linear',
title: 'Time',
anchor: 'y',
position: 0,
rangeslider: { visible: true }
},
yaxis: {
type: 'linear',
visible: false
},
bargap: 0.2,
barmode: 'stack'
}
);
if (drawnPlots) drawnPlots.push(plot);
};

/**
* Visualizes frequency-domain samples of a sound on a 2d line graph
* @param samples the frequency-domain samples of a sound to be visualized on plotly
* @param frequencies the frequency-domain samples of a sound to be visualized on plotly
*/
export const draw_sound_frequency_samples_2d = (samples: FrequencySamples) => {
export const draw_sound_frequency_2d = (frequencies: FrequencyList) => {
const FS: number = 44100; // Output sample rate

const x_s: number[] = [];
const y_s: number[] = [];
const len: number = samples.length;
const frequencies_arr: FrequencySample[] = list_to_vector(frequencies);
const len: number = frequencies_arr.length;

for (let i = 0; i < len / 2; i += 1) {
for (let i = 0; i < len; i += 1) {
const bin_freq: number = i * FS / len;
const sample: FrequencySample = samples[i];
const sample: FrequencySample = frequencies_arr[i];
const magnitude: number = get_magnitude(sample);

x_s.push(bin_freq);
Expand Down
3 changes: 1 addition & 2 deletions src/bundles/plotly/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,5 @@ export {
draw_points_2d,
draw_points_3d,
draw_sound_2d,
draw_sound_time_samples_2d,
draw_sound_frequency_samples_2d
draw_sound_frequency_2d
} from './functions';