Yin and yang: Difference between revisions
Go solution
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</pre>
=={{header|Go}}==
There are some emerging third-party 2D graphics libraries for Go; meanwhile, here is an SVG solution using only standard libraries.
<lang go>package main
import (
"fmt"
"os"
"template"
)
var tmpl = `<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<symbol id="yy" viewBox="0 0 200 200">
<circle stroke="black" stroke-width="2" fill="white"
cx="100" cy="100" r="99" />
<path fill="black"
d="M100 100 a49 49 0 0 0 0 -98
v-1 a99 99 0 0 1 0 198
v-1 a49 49 0 0 1 0 -98" />
<circle fill="black" cx="100" cy="51" r="17" />
<circle fill="white" cx="100" cy="149" r="17" />
</symbol>
{{range .}}<use xlink:href="#yy"
x="{{.X}}" y="{{.Y}}" width="{{.Sz}}" height="{{.Sz}}"/>
{{end}}</svg>
`
// structure specifies position and size to draw symbol
type xysz struct {
X, Y, Sz int
}
// example data to specify drawing the symbol twice,
// with different position and size.
var yys = []xysz{
{20, 20, 100},
{140, 30, 60},
}
func main() {
xt := template.New("")
template.Must(xt.Parse(tmpl))
f, err := os.Create("yy.svg")
if err != nil {
fmt.Println(err)
return
}
if err := xt.Execute(f, yys); err != nil {
fmt.Println(err)
}
f.Close()
}</lang>
=={{header|Haskell}}==
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