这篇文章主要介绍了go制作一个gif动态图的相关资料,需要的朋友可以参考下
如题，关键不是图怎么样，而是说，go可以拿来实现动态图验证码，加上go支持cgi、fcgi，完全可以做个exe拿去增补现有的服务器么。
ball.go
package main import ( "github.com/hydra13142/cube" "github.com/hydra13142/geom" "github.com/hydra13142/paint" "image" "image/color/palette" "image/gif" "math" "os" ) var ( pln *cube.Plain unx cube.Vector uny cube.Vector ) const ( H = 18 W = 36 ) func init() { pln, _ = cube.NewPlain(cube.Point{}, cube.Vector{4, 4, 3}) uny = cube.FromTo(cube.Point{}, pln.VerticalPoint(cube.Point{0, 0, 10})).Unit() unx = cube.OuterProduct(uny, cube.Vector{4, 4, 3}).Unit() } func main() { var x [H + 1][W]cube.Point var y [H + 1][W]geom.Point dz := math.Pi / H dxy := math.Pi * 2 / W for i := 0; i <= H; i++ { az := float64(i)*dz - math.Pi/2 r := 140 * math.Cos(az) z := 140 * math.Sin(az) for j := 0; j woniu.go
package main import ( "github.com/hydra13142/cube" "github.com/hydra13142/geom" "github.com/hydra13142/paint" "image" "image/color/palette" "image/gif" "math" "os" ) var ( pln *cube.Plain unx, uny cube.Vector ) const ( H = 18 W = 96 ) func init() { pln, _ = cube.NewPlain(cube.Point{}, cube.Vector{2, 2, 1}) uny = cube.FromTo(cube.Point{}, pln.VerticalPoint(cube.Point{0, 0, 10})).Unit() unx = cube.OuterProduct(uny, cube.Vector{2, 2, 1}).Unit() } func main() { var x [H + 1][W]cube.Point var y [H + 1][W]geom.Point dz := math.Pi / H dxy := math.Pi * 4 / W for i := 0; i <= H; i++ { az := float64(i)*dz - math.Pi/2 r := 300 * math.Cos(az) z := 100 * math.Sin(az) for j := 0; j rotate.go
package main import ( "github.com/hydra13142/cube" "github.com/hydra13142/geom" "github.com/hydra13142/paint" "image" "image/color/palette" "image/gif" "math" "os" ) var ( pln *cube.Plain unx, uny cube.Vector ) const ( H = 9 W = 36 ) func init() { pln, _ = cube.NewPlain(cube.Point{}, cube.Vector{4, 4, 3}) uny = cube.FromTo(cube.Point{}, pln.VerticalPoint(cube.Point{0, 0, 10})).Unit() unx = cube.OuterProduct(uny, cube.Vector{4, 4, 3}).Unit() } func main() { var x [H*W + 1]cube.Point var y [H*W + 1]geom.Point dxy := (math.Pi * 2) / W dz := math.Pi / H for i := 0; i <= H*W; i++ { az := float64(i)*dz/W - math.Pi/2 r := 140 * math.Cos(az) z := 140 * math.Sin(az) axy := float64(i) * dxy x[i] = cube.Point{math.Cos(axy) * r, math.Sin(axy) * r, z} } pics := make([]*image.Paletted, 0, 20) img := paint.Image{ FR: paint.Green, BG: paint.White, } stp := math.Pi * 2 / (W * 3) delay := make([]int, 0, 3*W) for t := 0; t <3*W; t++ { img.Image = image.NewPaletted(image.Rect(0, 0, 300, 300), palette.Plan9) for i := 0; i <= H*W; i++ { ox := cube.FromTo(cube.Point{}, x[i]) y[i] = geom.Point{cube.InnerProduct(ox, unx), cube.InnerProduct(ox, uny)} a, b := x[i].X, x[i].Z x[i].X = a*math.Cos(stp) - b*math.Sin(stp) x[i].Z = b*math.Cos(stp) + a*math.Sin(stp) } img.Line( 150+int(y[0].X), 150-int(y[0].Y), 150+int(y[H*W].X), 150-int(y[H*W].Y), ) for i := 0; i 以上就是本文的全部内容了，希望大家能够喜欢。
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