// 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)
}
// 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)
}