public static string AddPadding(string input)
{
var bytes = Encoding.UTF8.GetBytes(input);
var paddedBytes = BufferPadding.AddPadding(bytes);
var result = Encoding.UTF8.GetString(paddedBytes);
return(result);
}
private static void UpdateProperties(I3dm i3dm, string batchIdSerializeType)
{
var batchIdBytes = new byte[0];
if (i3dm.BatchIds != null)
{
batchIdBytes = GetBatchIdsBytes(i3dm.BatchIds, batchIdSerializeType);
}
i3dm.FeatureTableJson = BufferPadding.AddPadding(i3dm.GetFeatureTableJson(batchIdSerializeType, batchIdBytes.Length));
var featureTableBinary = new List <byte>();
featureTableBinary.AddRange(i3dm.Positions.ToBytes());
if (i3dm.NormalUps != null)
{
featureTableBinary.AddRange(i3dm.NormalUps.ToBytes());
}
if (i3dm.NormalRights != null)
{
featureTableBinary.AddRange(i3dm.NormalRights.ToBytes());
}
if (i3dm.ScaleNonUniforms != null)
{
featureTableBinary.AddRange(i3dm.ScaleNonUniforms.ToBytes());
}
if (i3dm.Scales != null)
{
featureTableBinary.AddRange(i3dm.Scales.ToBytes());
}
if (i3dm.BatchIds != null)
{
featureTableBinary.AddRange(batchIdBytes);
}
if (i3dm.RtcCenter != null)
{
featureTableBinary.AddRange(((Vector3)i3dm.RtcCenter).ToBytes());
}
if (i3dm.BatchTableJson != string.Empty)
{
i3dm.BatchTableJson = BufferPadding.AddPadding(i3dm.BatchTableJson);
}
if (i3dm.BatchTableBinary != null)
{
i3dm.BatchTableBinary = BufferPadding.AddPadding(i3dm.BatchTableBinary);
}
i3dm.FeatureTableBinary = BufferPadding.AddPadding(featureTableBinary.ToArray());
var header_length = 28;
var glbLength = i3dm.I3dmHeader.GltfFormat == 0 ? i3dm.GlbUrl.Length : i3dm.GlbData.Length;
i3dm.I3dmHeader.ByteLength =
glbLength + header_length +
i3dm.FeatureTableJson.Length +
i3dm.BatchTableJson.Length +
i3dm.BatchTableBinary.Length +
i3dm.FeatureTableBinary.Length +
BitConverter.GetBytes(i3dm.I3dmHeader.GltfFormat).Length;
i3dm.I3dmHeader.FeatureTableJsonByteLength = i3dm.FeatureTableJson.Length;
i3dm.I3dmHeader.BatchTableJsonByteLength = i3dm.BatchTableJson.Length;
i3dm.I3dmHeader.FeatureTableBinaryByteLength = i3dm.FeatureTableBinary.Length;
i3dm.I3dmHeader.BatchTableBinaryByteLength = i3dm.BatchTableBinary.Length;
}
public static string Write(string path, I3dm i3dm, string batchIdSerializeType = "UNSIGNED_SHORT")
{
var batchIdBytes = new byte[0];
if (i3dm.BatchIds != null)
{
batchIdBytes = GetBatchIdsBytes(i3dm.BatchIds, batchIdSerializeType);
}
i3dm.FeatureTableJson = BufferPadding.AddPadding(i3dm.GetFeatureTableJson(batchIdSerializeType, batchIdBytes.Length));
var featureTableBinary = new List <byte>();
featureTableBinary.AddRange(i3dm.Positions.ToBytes());
if (i3dm.NormalUps != null)
{
featureTableBinary.AddRange(i3dm.NormalUps.ToBytes());
}
if (i3dm.NormalRights != null)
{
featureTableBinary.AddRange(i3dm.NormalRights.ToBytes());
}
if (i3dm.ScaleNonUniforms != null)
{
featureTableBinary.AddRange(i3dm.ScaleNonUniforms.ToBytes());
}
if (i3dm.Scales != null)
{
featureTableBinary.AddRange(i3dm.Scales.ToBytes());
}
if (i3dm.BatchIds != null)
{
featureTableBinary.AddRange(batchIdBytes);
}
if (!i3dm.RtcCenter.Equals(Vector3.Zero))
{
featureTableBinary.AddRange(i3dm.RtcCenter.ToBytes());
}
if (i3dm.BatchTableJson != string.Empty)
{
i3dm.BatchTableJson = BufferPadding.AddPadding(i3dm.BatchTableJson);
}
if (i3dm.BatchTableBinary != null)
{
i3dm.BatchTableBinary = BufferPadding.AddPadding(i3dm.BatchTableBinary);
}
i3dm.FeatureTableBinary = BufferPadding.AddPadding(featureTableBinary.ToArray());
var header_length = 28;
i3dm.I3dmHeader.ByteLength =
i3dm.GlbData.Length + header_length +
i3dm.FeatureTableJson.Length +
i3dm.BatchTableJson.Length +
i3dm.BatchTableBinary.Length +
i3dm.FeatureTableBinary.Length +
BitConverter.GetBytes(i3dm.I3dmHeader.GltfFormat).Length;
i3dm.I3dmHeader.FeatureTableJsonByteLength = i3dm.FeatureTableJson.Length;
i3dm.I3dmHeader.BatchTableJsonByteLength = i3dm.BatchTableJson.Length;
i3dm.I3dmHeader.FeatureTableBinaryByteLength = i3dm.FeatureTableBinary.Length;
i3dm.I3dmHeader.BatchTableBinaryByteLength = i3dm.BatchTableBinary.Length;
var fileStream = File.Open(path, FileMode.Create);
var binaryWriter = new BinaryWriter(fileStream);
binaryWriter.Write(i3dm.I3dmHeader.AsBinary());
binaryWriter.Write(Encoding.UTF8.GetBytes(i3dm.FeatureTableJson));
if (i3dm.FeatureTableBinary != null)
{
binaryWriter.Write(i3dm.FeatureTableBinary);
}
binaryWriter.Write(Encoding.UTF8.GetBytes(i3dm.BatchTableJson));
if (i3dm.BatchTableBinary != null)
{
binaryWriter.Write(i3dm.BatchTableBinary);
}
binaryWriter.Write(i3dm.GlbData);
binaryWriter.Flush();
binaryWriter.Close();
return(fileStream.Name);
}
