6CRZBNMMLPKM7TAJ7HDX4XJR2DKBWOS72Q65QMBO2KSWQADWJPGAC
5AMZXFS5GBD6DS64Q5RTY55U7LQDMDW776UHZK4HQPPXWSMO3MAQC
6AXPZL5PQMW5P6BPRTGWO3AOWAU5OC33UYBY3TVOHUVQXCRVVTPQC
let xr = (x as f64) / (width as f64) * 2. * PI;
let xr = ((x as f64) / (width as f64) + 0.15) * 2. * PI;