private RowInfo[] createRowInfos() throws IOException {
final ISINGrid grid = this.grid;
final RowInfo[] binLines = new RowInfo[sceneHeight];
final Variable idxVariable =
ncFile.getRootGroup().findGroup("Level-3_Binned_Data").findVariable("BinList");
final Structure idxStructure = (Structure) idxVariable;
final Variable idx = idxStructure.findVariable("bin_num");
final int[] idxValues;
synchronized (ncFile) {
idxValues = (int[]) idx.read().getStorage();
}
if (bins == null) {
bins = idxValues; // (int[]) idxVariable.read().copyTo1DJavaArray();
}
final Point gridPoint = new Point();
int lastBinIndex = -1;
int lastRowIndex = -1;
int lineOffset = 0;
int lineLength = 0;
for (int i = 0; i < idxValues.length; i++) {
final int binIndex = idxValues[i];
if (binIndex < lastBinIndex) {
throw new IOException(
"Unrecognized level-3 format. Bins numbers expected to appear in ascending order.");
}
lastBinIndex = binIndex;
grid.getGridPoint(binIndex, gridPoint);
final int rowIndex = gridPoint.y;
if (rowIndex != lastRowIndex) {
if (lineLength > 0) {
binLines[lastRowIndex] = new RowInfo(lineOffset, lineLength);
}
lineOffset = i;
lineLength = 0;
}
lineLength++;
lastRowIndex = rowIndex;
}
if (lineLength > 0) {
binLines[lastRowIndex] = new RowInfo(lineOffset, lineLength);
}
return binLines;
}
