39 lines
648 B
Go
39 lines
648 B
Go
package main
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import "github.com/fogleman/gg"
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func main() {
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const S = 1000
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dc := gg.NewContext(S, S)
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dc.SetRGB(1, 1, 1)
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dc.Clear()
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dc.Translate(S/2, S/2)
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dc.Scale(40, 40)
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var x0, y0, x1, y1, x2, y2, x3, y3 float64
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x0, y0 = -10, 0
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x1, y1 = -8, -8
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x2, y2 = 8, 8
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x3, y3 = 10, 0
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dc.MoveTo(x0, y0)
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dc.CubicTo(x1, y1, x2, y2, x3, y3)
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dc.SetRGBA(0, 0, 0, 0.2)
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dc.SetLineWidth(8)
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dc.FillPreserve()
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dc.SetRGB(0, 0, 0)
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dc.SetDash(16, 24)
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dc.Stroke()
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dc.MoveTo(x0, y0)
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dc.LineTo(x1, y1)
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dc.LineTo(x2, y2)
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dc.LineTo(x3, y3)
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dc.SetRGBA(1, 0, 0, 0.4)
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dc.SetLineWidth(2)
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dc.SetDash(4, 8, 1, 8)
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dc.Stroke()
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dc.SavePNG("out.png")
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}
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