package main import "github.com/fogleman/gg" func main() { dc := gg.NewContext(1000, 1000) dc.DrawCircle(350, 500, 300) dc.Clip() dc.DrawCircle(650, 500, 300) dc.Clip() dc.DrawRectangle(0, 0, 1000, 1000) dc.SetRGB(0, 0, 0) dc.Fill() dc.SavePNG("out.png") }