public static G3D ReadG3d(this Stream stream, Func <string, string> renameFunc = null)
{
var header = G3dHeader.Default;
GeometryAttribute ReadAttribute(Stream s2, string name, long size)
{
var rename = renameFunc?.Invoke(name) ?? name;
// Check for the G3dHeader
if (rename == "meta")
{
if (size == 8)
{
var buffer = s2.ReadArray <byte>((int)size);
if (buffer[0] == G3dHeader.MagicA && buffer[1] == G3dHeader.MagicB)
{
header = G3dHeader.FromBytes(buffer);
}
}
else
{
s2.ReadArray <byte>((int)size);
}
return(null);
}
else
{
// Figure out the correct type and then read it in
var desc = AttributeDescriptor.Parse(rename);
var dflt = desc.ToDefaultAttribute(0);
return(dflt.Read(stream, size));
}
}
var results = stream.ReadBFast(ReadAttribute).Select(r => r.Item2);
return(new G3D(results.Where(x => x != null), header));
}
public static G3D Create(G3dHeader header, params GeometryAttribute[] attributes) => new G3D(attributes, header);