Golang Size示例

示例#1

文件： diagonals.go 项目： insionng/tinygraphs

// HalfDiagonals is the handler for /isogrids/labs/halfdiagonals
// builds a half diagonal (each diagonal goes to the middle of the square) grid.
func HalfDiagonals(w http.ResponseWriter, r *http.Request) {

	bg, fg := extract.ExtraColors(r)
	size := extract.Size(r)
	write.ImageSVG(w)
	isogrids.HalfDiagonals(w, "", bg, fg, size)
}

示例#2

文件： randomMirror.go 项目： insionng/tinygraphs

// RandomMirror handler for "/labs/isogrids/random-mirror"
// generates a random grid image symetric in the middle of the image.
func RandomMirror(w http.ResponseWriter, r *http.Request) {
	size := extract.Size(r)
	colors := extract.Colors(r)
	prob := extract.Probability(r, 1/float64(len(colors)))

	write.ImageSVG(w)
	isogrids.RandomMirror(w, colors, size, prob)
}

示例#3

文件： random.go 项目： insionng/tinygraphs

// Random handler for /isogrids/random.
// Generates a random isogrid image.
func Random(w http.ResponseWriter, r *http.Request) {

	colors := extract.Colors(r)
	prob := extract.Probability(r, 1/float64(len(colors)))

	size := extract.Size(r)
	lines := extract.Lines(r)
	write.ImageSVG(w)
	isogrids.Random(w, colors, size, size, lines, prob)
}

示例#4

文件： random.go 项目： insionng/tinygraphs

// Random handler for "/squares/random"
// generates a random 6 by 6 grid image.
func Random(w http.ResponseWriter, r *http.Request) {
	size := extract.Size(r)
	colors := extract.Colors(r)

	prob := extract.Probability(r, 1/float64(len(colors)))

	if f := extract.Format(r); f == format.JPEG {
		m := image.NewRGBA(image.Rect(0, 0, size, size))
		squares.RandomGrid(m, colors, 6, prob)
		var img image.Image = m
		write.ImageJPEG(w, &img)
	} else if f == format.SVG {
		write.ImageSVG(w)
		squares.RandomGridSVG(w, colors, size, size, 6, prob)
	}
}

示例#5

文件： isogrids.go 项目： insionng/tinygraphs

// Isogrids is the handler for /isogrids/:key
// builds a 10x10 grid with alternate colors based on the string passed in the url.
func Isogrids(w http.ResponseWriter, r *http.Request) {
	var err error
	var key string
	if key, err = route.Context.Get(r, "key"); err != nil {
		log.Println("Unable to get 'key' value: ", err)
		key = ""
	}

	h := md5.New()
	io.WriteString(h, key)
	key = fmt.Sprintf("%x", h.Sum(nil)[:])

	colors := extract.Colors(r)
	size := extract.Size(r)
	lines := extract.Lines(r)

	write.ImageSVG(w)
	isogrids.Isogrids(w, key, colors, size, lines)
}

示例#6

文件： spaceinvaders.go 项目： insionng/tinygraphs

// SpaceInvaders handler for /spaceinvaders/:key
func SpaceInvaders(w http.ResponseWriter, r *http.Request) {
	var err error
	var key string
	if key, err = route.Context.Get(r, "key"); err != nil {
		log.Println("Unable to get 'key' value: ", err)
		key = ""
	}

	h := md5.New()
	io.WriteString(h, key)
	key = fmt.Sprintf("%x", h.Sum(nil)[:])

	colors := extract.Colors(r)
	size := extract.Size(r)

	if Cache.IsCached(&w, r, key, colors, size) {
		w.WriteHeader(http.StatusNotModified)
		return
	}

	write.ImageSVG(w)
	spaceinvaders.SpaceInvaders(w, key, colors, size)
}

示例#7

文件： hexa.go 项目： insionng/tinygraphs

// Hexa is the handler for /isogrids/hexa/:key
// builds an hexagon with alternate colors.
func Hexa(w http.ResponseWriter, r *http.Request) {
	var err error
	size := extract.Size(r)

	var key string
	if key, _ = route.Context.Get(r, "key"); err != nil {
		key = ""
	}
	h := md5.New()
	io.WriteString(h, key)
	key = fmt.Sprintf("%x", h.Sum(nil)[:])

	lines := extract.Hexalines(r)
	colors := extract.Colors(r)

	if Cache.IsCached(&w, r, key, colors, size) {
		w.WriteHeader(http.StatusNotModified)
		return
	}

	write.ImageSVG(w)
	isogrids.Hexa(w, key, colors, size, lines)
}

示例#8

文件： checkerboard.go 项目： insionng/tinygraphs

// Checkerboard is the handler for /checkerboard
// build a 6x6 checkerboard with alternate black and white colors.
func Checkerboard(w http.ResponseWriter, r *http.Request) {
	size := extract.Size(r)
	theme := extract.Theme(r)
	colorMap := colors.MapOfColorThemes()

	var c1, c2 color.RGBA
	if val, ok := colorMap[theme]; ok {
		c1 = val[0]
		c2 = val[1]
	} else {
		c1 = colorMap["base"][0]
		c2 = colorMap["base"][1]
	}
	if f := extract.Format(r); f == format.JPEG {
		m := image.NewRGBA(image.Rect(0, 0, size, size))
		squares.Grid(m, c1, c2)
		var img image.Image = m
		write.ImageJPEG(w, &img)
	} else if f == format.SVG {
		write.ImageSVG(w)
		squares.GridSVG(w, c1, c2, size)
	}
}

示例#9

文件： square.go 项目： insionng/tinygraphs

// Square handler for /squares/:key
// builds a 6 by 6 grid with alternate colors based the key passed in the url.
func Square(w http.ResponseWriter, r *http.Request) {
	var err error
	var key string
	if key, err = route.Context.Get(r, "key"); err != nil {
		log.Println("Unable to get 'key' value: ", err)
		key = ""
	}

	theme := extract.Theme(r)

	h := md5.New()
	io.WriteString(h, key)
	key = fmt.Sprintf("%x", h.Sum(nil)[:])

	e := `"` + theme + key + `"`
	w.Header().Set("Etag", e)
	w.Header().Set("Cache-Control", "max-age=2592000") // 30 days
	if match := r.Header.Get("If-None-Match"); match != "" {
		if strings.Contains(match, e) {
			w.WriteHeader(http.StatusNotModified)
			return
		}
	}

	colors := extract.Colors(r)
	size := extract.Size(r)

	if f := extract.Format(r); f == format.JPEG {
		m := image.NewRGBA(image.Rect(0, 0, size, size))
		squares.Image(m, key, colors)
		var img image.Image = m
		write.ImageJPEG(w, &img)
	} else if f == format.SVG {
		write.ImageSVG(w)
		squares.SVG(w, key, colors, size)
	}
}