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| # see in action: https://codepen.io/rotten77/pen/GRyZopJ | |
| import math | |
| import random | |
| def smooth_array(input_array, output_length): | |
| import numpy as np | |
| points = np.arange(len(input_array)) | |
| values = np.array(input_array) | |
| x = np.linspace(0, len(input_array)-1, num=output_length) | |
| output_array = np.interp(x, points, values) | |
| return output_array | |
| scale = 6 | |
| resolution = 600 | |
| offset = 18 | |
| color = '#000' | |
| width = '2px' | |
| waves = [ | |
| [0, 5, 7, 6 , 8, 0], | |
| [0, 5, 2, 0, -3, 0], | |
| [0, 1, -7, -10, -12, 0], | |
| [0, -2, -8, -16, -24, 0], | |
| [0, -5, -12, -28, -30, 0], | |
| [0, -5, -18, -32, -36, 0], | |
| [0, -5, -12, -28, -30, 0], | |
| [0, 1, -4, -12, -24, 0], | |
| [0, 1, 2, -3, -10, 0], | |
| [0, 2, 1, 0, -2, 0], | |
| [0, 3, 4, 2, 2, 0], | |
| [0, 5, 7, 6 , 8, 0], | |
| [0, 2, 3, 1 , -1, 0], | |
| [0, -14, -8, -3 , -2, 0], | |
| [0, -18, -9, -4 , -3, 0], | |
| [0, -7, -2, -1 , 1, 0], | |
| [0, 1, 3, 4 , 7, 0], | |
| [0, 5, 7, 6 , 8, 0], | |
| ] | |
| path_result = "" | |
| max_y = 0 | |
| offset_current = math.ceil(offset/2) | |
| for wave in waves: | |
| path = [] | |
| y_values = smooth_array(wave, resolution) | |
| y_prev = 0 | |
| for i in range(0, resolution): | |
| half_scale = math.ceil(scale/2) | |
| wave_scale = random.randint(-1*half_scale, half_scale) | |
| y = offset_current + wave_scale + round(y_values[i]) | |
| if y == y_prev: | |
| y = y - wave_scale | |
| path.append(f'{("M" if i == 0 else "L")} {i} {y}') | |
| y_prev = y | |
| if y>max_y: | |
| max_y = y | |
| print() | |
| path_result += f'\n <path d="{" ".join(path)}" stroke="{color}" stroke-width="{width}" fill="none" vector-effect="non-scaling-stroke" />' | |
| offset_current += offset | |
| result = """ | |
| <html> | |
| <style> | |
| html, body { | |
| width:100%; | |
| height:100%; | |
| margin: 0; | |
| padding: 0;} | |
| body { | |
| background-color: #000; | |
| } | |
| @keyframes wave_fadeout { | |
| from {stroke: #fff} | |
| to {stroke: #888} | |
| } | |
| svg { | |
| position:fixed; | |
| top:0; | |
| left:0; | |
| overflow:hidden; | |
| width:100%; | |
| height:100%; | |
| overflow:hidden; | |
| z-index:10; | |
| } | |
| path { | |
| stroke: #888; | |
| width:100%; | |
| } | |
| path:hover { | |
| stroke: #fff | |
| } | |
| path:not(:hover) { | |
| animation-name: wave_fadeout; | |
| animation-duration: 2s; | |
| } | |
| </style> | |
| <body> | |
| """ | |
| result += f'\n<svg viewBox="0 0 {resolution} {math.ceil(max_y/offset)*offset}" preserveAspectRatio="none">' | |
| result +=path_result | |
| result += '\n</svg></body></html>' | |
| file = open("waves.html", "w+") | |
| file.write(result) | |
| file.close() |
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