Sunflower fractal: Difference between revisions
→{{header|jq}}
Line 413:
(The number displayed is the size of the generated file.)
=={{header|jq}}==
{{works with|jq}}
'''Works with gojq, the Go implementation of jq'''
<lang jq># SVG headers
def svg(size):
"<svg xmlns='http://www.w3.org/2000/svg' width='\(size)'",
"height='\(size)' style='stroke:gold'>",
"<rect width='100%' height='100%' fill='black'/>";
# emit the "<circle />" elements
def sunflower(size):
def rnd: 100*.|round/100;
(5 * size) as $seeds
| ((1|atan) * 4) as $pi
| 1.61803398875 as $phi
| range(1; 1 + $seeds) as $i
| {}
| .r = 2 * pow($i; $phi)/$seeds
| .theta = 2 * $pi * $phi * $i
| .x = .r * (.theta|sin) + size/2
| .y = .r * (.theta|cos) + size/2
| .radius = ($i|sqrt)/13
| "<circle cx='\(.x|rnd)' cy='\(.y|rnd)' r='\(.radius|rnd)' />" ;
def end_svg:
"</svg>";
svg(600),
sunflower(600),
end_svg</lang>
=={{header|Julia}}==
| |||