public byte[] ToBytes()
{
var header_length = 28;
var featureTableJson = BufferPadding.AddPadding(FeatureTableJson, header_length);
var batchTableJson = BufferPadding.AddPadding(BatchTableJson);
var featureTableBinary = BufferPadding.AddPadding(FeatureTableBinary);
var batchTableBinary = BufferPadding.AddPadding(BatchTableBinary);
B3dmHeader.ByteLength = GlbData.Length + header_length + featureTableJson.Length + batchTableJson.Length + batchTableBinary.Length + FeatureTableBinary.Length;
B3dmHeader.FeatureTableJsonByteLength = featureTableJson.Length;
B3dmHeader.BatchTableJsonByteLength = batchTableJson.Length;
B3dmHeader.FeatureTableBinaryByteLength = featureTableBinary.Length;
B3dmHeader.BatchTableBinaryByteLength = batchTableBinary.Length;
var memoryStream = new MemoryStream();
var binaryWriter = new BinaryWriter(memoryStream);
binaryWriter.Write(B3dmHeader.AsBinary());
binaryWriter.Write(Encoding.UTF8.GetBytes(featureTableJson));
if (featureTableBinary != null)
{
binaryWriter.Write(featureTableBinary);
}
binaryWriter.Write(Encoding.UTF8.GetBytes(batchTableJson));
if (batchTableBinary != null)
{
binaryWriter.Write(batchTableBinary);
}
binaryWriter.Write(GlbData);
binaryWriter.Flush();
binaryWriter.Close();
return(memoryStream.ToArray());
}
public B3dm()
{
B3dmHeader = new B3dmHeader();
FeatureTableJson = string.Empty;
BatchTableJson = string.Empty;
FeatureTableJson = "{\"BATCH_LENGTH\":0} ";
FeatureTableBinary = new byte[0];
BatchTableBinary = new byte[0];
}
public static B3dm ReadB3dm(BinaryReader reader)
{
var b3dmHeader = new B3dmHeader(reader);
var featureTableJson = Encoding.UTF8.GetString(reader.ReadBytes(b3dmHeader.FeatureTableJsonByteLength));
var featureTableBytes = reader.ReadBytes(b3dmHeader.FeatureTableBinaryByteLength);
var batchTableJson = Encoding.UTF8.GetString(reader.ReadBytes(b3dmHeader.BatchTableJsonByteLength));
var batchTableBytes = reader.ReadBytes(b3dmHeader.BatchTableBinaryByteLength);
var glbLength = b3dmHeader.ByteLength - b3dmHeader.Length;
var glbBuffer = reader.ReadBytes(glbLength);
var b3dm = new B3dm {
B3dmHeader = b3dmHeader,
GlbData = glbBuffer,
FeatureTableJson = featureTableJson,
FeatureTableBinary = featureTableBytes,
BatchTableJson = batchTableJson,
BatchTableBinary = batchTableBytes
};
return(b3dm);
}
public static B3dm ReadB3dm(Stream stream)
{
using (var reader = new BinaryReader(stream)) {
var b3dmHeader = new B3dmHeader(reader);
var featureTableJson = Encoding.UTF8.GetString(reader.ReadBytes(b3dmHeader.FeatureTableJsonByteLength));
var featureTableBytes = reader.ReadBytes(b3dmHeader.FeatureTableBinaryByteLength);
var batchTableJson = Encoding.UTF8.GetString(reader.ReadBytes(b3dmHeader.BatchTableJsonByteLength));
var batchTableBytes = reader.ReadBytes(b3dmHeader.BatchTableBinaryByteLength);
var glbLength = (int)(reader.BaseStream.Length - reader.BaseStream.Position);
var glbBuffer = reader.ReadBytes(glbLength);
var b3dm = new B3dm {
B3dmHeader = b3dmHeader,
GlbData = glbBuffer,
FeatureTableJson = featureTableJson,
FeatureTableBinary = featureTableBytes,
BatchTableJson = batchTableJson,
BatchTableBinary = batchTableBytes
};
return(b3dm);
}
}
