normalize method
Implementation
TileIdentity normalize() {
final maxX = pow(2, z).toInt();
if (x >= 0 && x < maxX) {
return this;
}
var normalizedX = x;
while (normalizedX >= maxX) {
normalizedX -= maxX;
}
while (normalizedX < 0) {
normalizedX += maxX;
}
return TileIdentity(z, normalizedX, y);
}