public void Id2RowColTest()
{
ExtentRectangle rTest1 = new ExtentRectangle(5, 6, -1, 1, 100, 50);
CollectionAssert.AreEqual(rTest1.Id2RowCol(52), new int[2] {
2, 3
});
CollectionAssert.AreEqual(rTest1.Id2RowCol(0), new int[2] {
1, 1
});
CollectionAssert.AreEqual(rTest1.Id2RowCol(1), new int[2] {
1, 2
});
CollectionAssert.AreEqual(rTest1.Id2RowCol(100), new int[2] {
3, 1
});
CollectionAssert.AreEqual(rTest1.Id2RowCol(4999), new int[2] {
100, 50
});
}
protected override void ChunkOp(List <T[]> data, List <T[]> outBuffers)
{
/** Don't forget the numbering scheme:
* 0 1 2 or 0 1 2 3 4
* 3 4 5 5 6 7 8 9
* 6 7 8 10 11 12 13 14
* 15 16 17 18 19
* 20 21 22 23 24
*/
// Initialize the Window properly
WindowExtent.Left = ChunkExtent.Left - ChunkExtent.CellWidth;
WindowExtent.Top = ChunkExtent.Top - ChunkExtent.CellHeight;
// First time around we need to set up the cache properly and force the look-ahead forward
if (_chunkCache.Count == 0)
{
firstTime(data);
}
// When we get to the end of the file we need to pad with nodata values at the bottom
//else if (ChunkExtent.Top > OriginalOpBottom)
else if ((ChunkExtent.Top * ChunkExtent.CellHeight) >= (OriginalOpBottom * ChunkExtent.CellHeight))
{
IdxIncrement();
_chunkCache[Row2CacheId(BufferLength)] = NoDataChunkList();
}
else
{
// Put our data into the right place in the rolling cache
IdxIncrement();
_chunkCache[Row2CacheId(BufferLength)] = data.Clone <T[]>();
}
// Loop over the cells in the Chunk (line)
for (int id = 0; id < data[0].GetLength(0); id++)
{
bool containsNodata = false;
// Now loop over cells in the window
for (int wId = 0; wId < BufferCellNum; wId++)
{
// Get the rowcol translation of this window id
int[] winRowCol = WindowExtent.Id2RowCol(wId);
// The row of the window tells us which cache to use
int cacheNum = Row2CacheId(winRowCol[0]);
// This is the column ID of the cache column in window coordinates
int wid2cid = id + (winRowCol[1] - 1) - BufferCells;
// Now loop over all the data values (number of rasters)
for (int dId = 0; dId < data.Count; dId++)
{
// Edge cases to the left and right of the chunk data become nodata
// (top and bottom are handled by pre-filling the cache)
if (wid2cid < 0 || wid2cid >= ChunkExtent.Cols)
{
dWindow[dId][wId] = inNodataVals[dId];
}
else
{
dWindow[dId][wId] = _chunkCache[cacheNum][dId][wid2cid];
}
// This is done to save us checking later. We can decide whether to use
// This information or not.
if (dWindow[dId][wId].Equals(inNodataVals[dId]))
{
containsNodata = true;
}
}
}
// DEBUG TEST
//dWindow[0].Make2DArray(BufferLength, BufferLength).DebugPrintGrid(OpNodataVal);
#if DEBUG
num_calcs++;
#endif
WindowOp(dWindow, outBuffers, id, containsNodata);
// Move the window by one cell to the right
WindowExtent.Left += ChunkExtent.CellWidth;
}
}