Barcode2DMatrix.fromXY constructor

Barcode2DMatrix.fromXY(
  1. int width,
  2. int height,
  3. double ratio,
  4. bool isDark(
    1. int x,
    2. int y
    ),
)

Implementation

factory Barcode2DMatrix.fromXY(
  int width,
  int height,
  double ratio,
  bool Function(int x, int y) isDark,
) => Barcode2DMatrix(
  width,
  height,
  ratio,
  Iterable<bool>.generate(width * height, (int p) {
    final int x = p % height;
    final int y = p ~/ height;
    return isDark(y, x);
  }),
);