private static Box3d ReadBox3d(XElement e, string tagName)
{
return(Box3d.Parse(e.Element(tagName).Value.Trim()));
}
private static void Test(string dirname)
{
var metaFileName = Path.GetFullPath(@"meta.json");
var meta = JArray
.Parse(File.ReadAllText(metaFileName))
.Select(x => (
filename: (string)x["FileName"],
count: (long)x["Count"],
bounds: Box3d.Parse((string)x["Bounds"])
))
.ToArray()
;
var area = meta.Sum(x => x.bounds.Size.X * x.bounds.Size.Y) / 1000000.0;
WriteLine($"area: {area:N3} km²");
var bounds = new Box3d(meta.Select(x => x.bounds));
WriteLine($"bounds: {bounds}");
const double TILE_SIZE = 256.0;
var OFFSET = new V3d(0, 0, 50);
bounds = bounds + OFFSET;
if (bounds.Size.Z > TILE_SIZE)
{
throw new InvalidOperationException();
}
var bb = new Box3d((bounds.Min / 256).Floor * 256, (bounds.Max / 256).Ceiling * 256);
WriteLine($"bounds: {bb}");
var minIncl = new V2l(bb.Min.X / TILE_SIZE, bb.Min.Y / TILE_SIZE);
var maxExcl = new V2l(bb.Max.X / TILE_SIZE + 1, bb.Max.Y / TILE_SIZE + 1);
WriteLine($"a: {new Cell(minIncl.X, minIncl.Y, 0, 8).BoundingBox}");
WriteLine($"b: {new Cell(maxExcl.X, maxExcl.Y, 0, 8).BoundingBox}");
var maxCount = 0L;
var i = 0;
var importConfig = ParseConfig.Default.WithMaxChunkPointCount(16 * 1024 * 1024);
for (var cx = minIncl.X; cx < maxExcl.X; cx++)
{
for (var cy = minIncl.Y; cy < maxExcl.Y; cy++)
{
i++;
var localCell = new Cell(cx, cy, 0, 8);
var localBounds = localCell.BoundingBox - OFFSET;
var candidates = meta.Where(x => x.bounds.Intersects(localBounds)).ToArray();
if (candidates.Length > 0)
{
var key = $"cell_{localCell.X}_{localCell.Y}_{localCell.Z}_{localCell.Exponent}";
var targetFilename = $"G://{key}.bin";
var targetFilenameTmp = $"{targetFilename}.tmp";
if (File.Exists(targetFilename))
{
WriteLine($"[{i,6:N0}] {targetFilename} already exists");
continue;
}
var sw = new Stopwatch(); sw.Start();
var localCount = candidates.Sum(x => x.count);
if (localCount > maxCount)
{
maxCount = localCount;
}
var chunks = candidates
.SelectMany(x => Aardvark.Data.Points
.Import.Laszip.Chunks(Path.Combine(dirname, x.filename), importConfig)
.Select(y => y.ImmutableFilterByPosition(localBounds.Contains))
)
.Where(x => x.Count > 0)
.Select(x => new Chunk(x.Positions, x.Colors))
.ToArray()
;
if (chunks.Sum(x => x.Count) == 0)
{
continue;
}
//var store = PointCloud.OpenStore($"T:/Koeln/{key}.bin");
//PointCloud.Chunks(chunks, ImportConfig.Default.WithStorage(store).WithKey(key));
var countWritten = 0L;
using (var f = File.OpenWrite(targetFilenameTmp))
using (var z = new GZipStream(f, CompressionMode.Compress))
using (var bw = new BinaryWriter(z))
{
var o = chunks.First().Positions[0];
bw.Write(o.X); bw.Write(o.Y); bw.Write(o.Z);
bw.Write(chunks.Sum(x => (long)x.Count));
foreach (var chunk in chunks)
{
var chunk2 = chunk.ImmutableFilterSequentialMinDistL1(0.01);
if (chunk2.Count == 0)
{
continue;
}
var ps = chunk2.Positions.Map(p => (V3f)(p - o).Round(2));
for (var j = 0; j < ps.Length; j++)
{
var p = ps[j];
bw.Write(p.X);
bw.Write(p.Y);
bw.Write(p.Z);
countWritten++;
}
for (var j = 0; j < chunk2.Count; j++)
{
var c = chunk2.Colors[j];
bw.Write(c.R); bw.Write(c.G); bw.Write(c.B);
}
}
}
File.Move(targetFilenameTmp, targetFilename);
WriteLine($"[{i,6:N0}] {localCell,6} -> {candidates.Length,6:N0} -> {localCount,15:N0} {chunks.Sum(x => x.Count),15:N0} {countWritten,15:N0} ({sw.Elapsed})");
}
}
}
WriteLine(i);
}
/// <summary></summary> public static FilterInsideBox3d Deserialize(JObject json) => new FilterInsideBox3d(Box3d.Parse((string)json["Box"]));