canvas実験用
var cv = document.getElementById('cvtest'); var g = cv.getContext('2d'); var sqrt = Math.sqrt; function to_ism(x,y){ var q = sqrt(2)/2 return [(x-y)*2*q, (x+y)*q] }
テスト用
var cv = document.getElementById('cvtest'); var g = cv.getContext('2d'); var sqrt = Math.sqrt; function to_ism(x,y){ var q = sqrt(2)/2 return [(x-y)*2*q, (x+y)*q] }
テスト用