Arrays.fill(padNaNs, Double.NaN);
final WritableRectIter iterator = RectIterFactory.createWritable(tiled, gridBounds);
if (!iterator.finishedLines()) try {
int y = gridBounds.y;
do {
iterator.startPixels();
if (!iterator.finishedPixels()) {
int x = gridBounds.x;
do {
point2D.x = x;
point2D.y = y;