static void Main(string[] args)
{
Console.WriteLine("Start");
var file = new FileInfo(
"Resources/i-robot obj.obj"
);
var sw = new Stopwatch();
var tests = 10;
long total = 0;
sw.Restart();
using (var reader = new FileFormats.MemoryMappedFileReader(file)) {
var span = reader.ReadSpan();
sw.Stop();
var readTime = sw.ElapsedMilliseconds;
Console.WriteLine($"Read span: {readTime} ms");
while (tests-- > 0)
{
if (span.Length != 113569792)
{
Console.WriteLine($"ERROR: Not all data was readed");
break;
}
var parser = new Utf8ByteOBJParser();
sw.Restart();
parser.Read(span);
sw.Stop();
var builder = new UnitedGroupsBulder(parser.GeometryCache);
var mesh = builder.Build().Single();
if (mesh.Indices.Count != 4692648 || mesh.Positions.Count != 786586)
{
Console.WriteLine($"ERROR: Not all data was readed");
break;
}
var milsec = sw.ElapsedMilliseconds;
total += milsec;
}
}
Console.WriteLine($"Total: {total / 10} ms");
// DEBUG
//1558 ms = 100 MB file
//1487 ms
//1542 ms + Normals
//1281 - refactor face
//1920 - add OBJVertex
//1530 - refactor OBJVertex
Console.WriteLine($"Finished");
Console.ReadKey();
}
static void Import(string file, out IEnumerable <IFileGeometry3D> meshes, out FileInfo material, out AxisAlignedBox box)
{
box = AxisAlignedBox.Zero;
material = null;
var f = new FileInfo(file);
switch (f.Extension.ToLower())
{
case ".stl":
meshes = G3Readers.ReadStl(f);
box = AxisAlignedBox.CreateFrom(meshes.First().Positions);
break;
case ".obj":
var parser = new Utf8ByteOBJParser();
using (var reader = new FileFormats.MemoryMappedFileReader(f)) {
parser.Read(reader.ReadSpan());
}
try {
material = parser.HasMTL ?
new FileInfo(parser.GetMaterialFilePath(f.Directory, f.Directory)) : null;
} catch { }
//var builder = new UnitedGroupsBulder(parser.GeometryCache);
var builder = new GroupGeoBuilder(parser.GeometryCache);
meshes = builder.Build();
box = AxisAlignedBox.CreateFrom(parser.GeometryCache.PositionsCache.AsReadOnly());
break;
default:
throw new NotSupportedException($"'{f.Extension}' is not suppported format.");
}
}
