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peterhellberg/gfx-cubic-bezier-curve.go

Created March 1, 2020 19:06
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Cubic Bezier Curve using gfx
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gfx-cubic-bezier-curve.go
package main
import "github.com/peterhellberg/gfx"
var (
p = gfx.PaletteAmmo8
dst = gfx.NewImage(256, 256, p[1])
p0 = gfx.V(16, 192)
p1 = gfx.V(32, 8)
p2 = gfx.V(192, 244)
p3 = gfx.V(240, 128)
inc = 0.0009
)
func main() {
gfx.DrawLineBresenham(dst, p0, p1, p[0])
gfx.DrawLineBresenham(dst, p2, p3, p[0])
gfx.DrawCicleFast(dst, p0, 4, p[0])
gfx.DrawCicleFast(dst, p1, 4, p[0])
gfx.DrawCicleFast(dst, p2, 4, p[0])
gfx.DrawCicleFast(dst, p3, 4, p[0])
for i, v := range gfx.CubicBezierCurve(p0, p1, p2, p3, inc) {
gfx.SetVec(dst, v, p.At(float64(i)*inc))
}
gfx.SavePNG("/tmp/bezier.png", gfx.NewScaledImage(dst, 2))
}
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Ammo8 Arne16 Ink PICO8
cubic-bezier-curve-Ammo8 cubic-bezier-curve-Arne16 cubic-bezier-curve-Ink cubic-bezier-curve-PICO8

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