The image was written in pug and can be compiled using the pug command line interface.

mixin wave-pattern
  - var width = attributes.width;
  - var height = width/2;
  - var stroke_width = attributes['stroke-width'] ? attributes['stroke-width'] : 1;
  - var lines = attributes['lines-per-circle'] ? attributes['lines-per-circle'] : 1;
  - var fill = attributes.fill ? attributes.fill : 'white';
  - var stroke =  attributes.stroke ? attributes.stroke : 'red'
  - var stoke_gap_width = attributes['stroke-gap-width'] ? attributes['stroke-gap-width'] : stroke_width*2;
  mixin wave-pattern__circle
    - var r = width/2 - stroke_width/2;
    - var n = 0;
    while n <= lines
      - var this_r = r-(n*stoke_gap_width);
      if this_r > 0
        circle(cx=attributes.cx, cy=attributes.cy, r=r-(n*stoke_gap_width), stroke-width=stroke_width, stroke=stroke, fill=fill)
      - n++;
  - var offset = .5;
  pattern(id=attributes.id, width=width, height=height, patternunits='userSpaceOnUse')
    +wave-pattern__circle(cx=width/2, cy=0)
    +wave-pattern__circle(cx=0, cy=height*offset)
    +wave-pattern__circle(cx=width, cy=height*offset)
    +wave-pattern__circle(cx=width/2, cy=height)
    +wave-pattern__circle(cx=0, cy=height*offset+height)
    +wave-pattern__circle(cx=width, cy=height*offset+height)

- var width = 1600;
- var height = 1200;

svg(width=width, height=height, xmlns='http://www.w3.org/2000/svg' viewbox="0 0 " + width + " " + height)
  defs
    +wave-pattern#waves(width='300', lines-per-circle="6", stroke-width="5", stroke-gap-width="20" stroke='green')
  
  rect(x=0, y=0, height=height, width=width, fill="url(#waves)")

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https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue