func main() {
flag.Parse()
ZellijTilings, reset = zellij.TileSkeleton(skeleton, tileSymmetry, false)
Frame := zellij.SkeletonFrame(skeleton)
symmetryCounts := make(map[string]int)
for T := range ZellijTilings {
symmetryGroup := zellij.DetectSymmetryGroup(T)
filename := fmt.Sprintf("%v-%v-%d", skeleton, symmetryGroup, symmetryCounts[symmetryGroup]+1)
symmetryCounts[symmetryGroup]++
save, err := os.Create(path.Join(dir, filename+".zellij"))
if err != nil {
panic("file error")
}
enc := json.NewEncoder(save)
enc.Encode([]*quadratic.Map{Frame, T})
save.Close()
image := cairo.NewSurface(path.Join(dir, "svg", filename+".svg"), 72*5, 72*5)
image.SetSourceRGB(0., 0., 0.)
image.SetLineWidth(.1)
image.Translate(72*2.5, 72*2.5)
image.Scale(4., 4.)
T.ColourFaces(image, zellij.PlainBrush)
image.Finish()
}
}
func RenderTiles(w http.ResponseWriter, req *http.Request) {
e := os.Remove("svg/test-surface.svg")
if e != nil {
os.Stderr.WriteString(e.String() + "\n")
}
if CurrentTiling == nil {
EmptySvg(w, req)
return
}
style := req.FormValue("style")
image := cairo.NewSurface("svg/test-surface.svg", 72*4, 72*4)
image.SetSourceRGB(0., 0., 0.)
image.SetLineWidth(.1)
image.Translate(72*2., 72*2.)
image.Scale(4., 4.)
if style == "edges" {
image.SetSourceRGBA(0., 0., 0., 1.)
CurrentTiling.DrawEdges(image)
} else if style == "plain" {
CurrentTiling.ColourFaces(image, zellij.OrangeBlueBrush)
} else {
CurrentTiling.ColourDebugFaces(image)
CurrentTiling.DrawDebugEdges(image)
}
image.Finish()
http.ServeFile(w, req, "svg/test-surface.svg")
}
func main() {
surface := cairo.NewSurface(cairo.FormatArgB32, 240, 80)
surface.SelectFontFace("serif", cairo.FontSlantNormal, cairo.FontWeightBold)
surface.SetFontSize(32.0)
surface.SetSourceRGB(0.0, 0.0, 1.0)
surface.MoveTo(10.0, 50.0)
surface.ShowText("Hello World")
surface.Finish()
surface.WriteToPNG("hello.png")
}
func EmbellishFrame(w http.ResponseWriter, req *http.Request) {
e := os.Remove("svg/embellishment.svg")
if e != nil {
os.Stderr.WriteString(e.String() + "\n")
}
frame := quadratic.NewMap()
jsonErr := json.NewDecoder(strings.NewReader(req.FormValue("frame"))).Decode(frame)
if jsonErr != nil {
os.Stderr.WriteString("json error: " + jsonErr.String() + "\n")
return
}
zig, err := zellij.Embellish(frame, MotifDatabase)
if err != nil {
os.Stderr.WriteString(err.String() + "\n")
return
}
fmt.Fprintf(os.Stderr, "embellishment has %v faces\n", zig.Faces.Len())
bx := zig.Verticies.At(0).(*quadratic.Vertex).Point
tx := zig.Verticies.At(0).(*quadratic.Vertex).Point
by := zig.Verticies.At(0).(*quadratic.Vertex).Point
ty := zig.Verticies.At(0).(*quadratic.Vertex).Point
for i := 1; i < zig.Verticies.Len(); i++ {
v := zig.Verticies.At(i).(*quadratic.Vertex).Point
if v.Y().Float64() < by.Y().Float64() {
by = v
} else if v.Y().Float64() > ty.Y().Float64() {
ty = v
}
if v.X().Float64() < bx.X().Float64() {
bx = v
} else if v.X().Float64() > tx.X().Float64() {
tx = v
}
}
xwidth := math.Floor(tx.X().Float64() - bx.X().Float64() + 20.0)
ywidth := math.Floor(ty.Y().Float64() - by.Y().Float64() + 20.0)
image := cairo.NewSurface("svg/embellishment.svg", xwidth*4, ywidth*4)
image.SetSourceRGB(0., 0., 0.)
image.SetLineWidth(.1)
image.Translate(-bx.X().Float64()*4.+40, -by.Y().Float64()*4.+40)
image.Scale(4., 4.)
zig.ColourFaces(image, zellij.OrangeBlueBrush)
image.Finish()
http.ServeFile(w, req, "svg/embellishment.svg")
}
func DrawSkel(w http.ResponseWriter, req *http.Request) {
e := os.Remove("svg/test-surface.svg")
if e != nil {
os.Stderr.WriteString(e.String() + "\n")
}
skeleton := req.FormValue("skeleton")
image := cairo.NewSurface("svg/test-surface.svg", 72*4, 72*4)
image.SetSourceRGB(0., 0., 0.)
image.SetLineWidth(.1)
image.Translate(72*2., 72*2.)
image.Scale(4., 4.)
skel, ok := zellij.SkeletonMap(skeleton)
if ok != nil {
os.Stderr.WriteString(ok.String() + "\n")
}
skel.DrawEdges(image)
image.Finish()
http.ServeFile(w, req, "svg/test-surface.svg")
}