public I3dm()
{
I3dmHeader = new I3dmHeader();
FeatureTable = new FeatureTable();
FeatureTableJson = string.Empty;
BatchTableJson = string.Empty;
FeatureTableBinary = new byte[0];
BatchTableBinary = new byte[0];
}
public static I3dm Read(BinaryReader reader)
{
var i3dmHeader = new I3dmHeader(reader);
var featureTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.FeatureTableJsonByteLength));
var featureTableBytes = reader.ReadBytes(i3dmHeader.FeatureTableBinaryByteLength);
var batchTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.BatchTableJsonByteLength));
var batchTableBytes = reader.ReadBytes(i3dmHeader.BatchTableBinaryByteLength);
var glbLength = i3dmHeader.ByteLength - i3dmHeader.Length;
var glbBuffer = reader.ReadBytes(glbLength);
var serializeOptions = new JsonSerializerOptions();
serializeOptions.IgnoreNullValues = true;
serializeOptions.Converters.Add(new Vector3Converter());
var featureTable = JsonSerializer.Deserialize <FeatureTable>(featureTableJson.TrimEnd(), serializeOptions);
var positions = GetVector3Collection(featureTable.InstancesLength, featureTable.PositionOffset.offset, featureTableBytes);
var i3dm = i3dmHeader.GltfFormat == 0 ?
new I3dm(positions, Encoding.UTF8.GetString(glbBuffer)) : new I3dm(positions, glbBuffer);
i3dm.I3dmHeader = i3dmHeader;
i3dm.FeatureTableJson = featureTableJson;
i3dm.FeatureTableBinary = featureTableBytes;
i3dm.BatchTableJson = batchTableJson;
i3dm.BatchTableBinary = batchTableBytes;
i3dm.FeatureTable = featureTable;
if (featureTable.NormalUpOffset != null)
{
i3dm.NormalUps = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalUpOffset.offset, featureTableBytes);
}
if (featureTable.NormalRightOffset != null)
{
i3dm.NormalRights = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalRightOffset.offset, featureTableBytes);
}
if (featureTable.ScaleNonUniformOffset != null)
{
i3dm.ScaleNonUniforms = GetVector3Collection(featureTable.InstancesLength, featureTable.ScaleNonUniformOffset.offset, featureTableBytes);
}
if (featureTable.BatchIdOffset != null)
{
i3dm.BatchIds = GetBatchIdCollection(featureTable.InstancesLength, featureTable.BatchIdOffset.offset, featureTableBytes, featureTable.BatchIdOffset.componentType);
}
if (featureTable.ScaleOffset != null)
{
i3dm.Scales = GetFloatCollection(featureTable.InstancesLength, featureTable.ScaleOffset.offset, featureTableBytes);
}
if (featureTable.RtcCenter != null)
{
i3dm.RtcCenter = featureTable.RtcCenter;
}
return(i3dm);
}
public static I3dm Read(Stream stream)
{
using (var reader = new BinaryReader(stream))
{
var i3dmHeader = new I3dmHeader(reader);
var featureTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.FeatureTableJsonByteLength));
var featureTableBytes = reader.ReadBytes(i3dmHeader.FeatureTableBinaryByteLength);
var batchTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.BatchTableJsonByteLength));
var batchTableBytes = reader.ReadBytes(i3dmHeader.BatchTableBinaryByteLength);
var glbLength = (int)(reader.BaseStream.Length - reader.BaseStream.Position);
var glbBuffer = reader.ReadBytes(glbLength);
var featureTable = JsonSerializer.Deserialize <FeatureTable>(featureTableJson);
var positions = GetVector3Collection(featureTable.InstancesLength, featureTable.PositionOffset.offset, featureTableBytes);
var i3dm = new I3dm(positions, glbBuffer)
{
I3dmHeader = i3dmHeader,
GlbData = glbBuffer,
FeatureTableJson = featureTableJson,
FeatureTableBinary = featureTableBytes,
BatchTableJson = batchTableJson,
BatchTableBinary = batchTableBytes,
FeatureTable = featureTable
};
if (featureTable.NormalUpOffset != null)
{
i3dm.NormalUps = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalUpOffset.offset, featureTableBytes);
}
if (featureTable.NormalRightOffset != null)
{
i3dm.NormalRights = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalRightOffset.offset, featureTableBytes);
}
if (featureTable.ScaleNonUniformOffset != null)
{
i3dm.ScaleNonUniforms = GetVector3Collection(featureTable.InstancesLength, featureTable.ScaleNonUniformOffset.offset, featureTableBytes);
}
if (featureTable.BatchIdOffset != null)
{
i3dm.BatchIds = GetBatchIdCollection(featureTable.InstancesLength, featureTable.BatchIdOffset.offset, featureTableBytes, featureTable.BatchIdOffset.componentType);
}
if (featureTable.ScaleOffset != null)
{
i3dm.Scales = GetFloatCollection(featureTable.InstancesLength, featureTable.ScaleOffset.offset, featureTableBytes);
}
if (featureTable.RtcCenterOffset != null)
{
i3dm.RtcCenter = GetVector3(featureTable.RtcCenterOffset.offset, featureTableBytes);
}
return(i3dm);
}
}
public static I3dm Read(Stream stream)
{
using (var reader = new BinaryReader(stream))
{
var i3dmHeader = new I3dmHeader(reader);
var featureTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.FeatureTableJsonByteLength));
var featureTableBytes = reader.ReadBytes(i3dmHeader.FeatureTableBinaryByteLength);
var batchTableJson = Encoding.UTF8.GetString(reader.ReadBytes(i3dmHeader.BatchTableJsonByteLength));
var batchTableBytes = reader.ReadBytes(i3dmHeader.BatchTableBinaryByteLength);
var glbLength = (int)(reader.BaseStream.Length - reader.BaseStream.Position);
var glbBuffer = reader.ReadBytes(glbLength);
var featureTable = JsonSerializer.Deserialize <FeatureTable>(featureTableJson);
// todo: batch table ids'... complexity it can be any format like 'UNSIGNED_BYTE' or others
var i3dm = new I3dm
{
I3dmHeader = i3dmHeader,
GlbData = glbBuffer,
FeatureTableJson = featureTableJson,
FeatureTableBinary = featureTableBytes,
BatchTableJson = batchTableJson,
BatchTableBinary = batchTableBytes,
FeatureTable = featureTable
};
if (featureTable.PositionOffset != null)
{
i3dm.Positions = GetVector3Collection(featureTable.InstancesLength, featureTable.PositionOffset.byteOffset, featureTableBytes);
}
;
if (featureTable.NormalUpOffset != null)
{
i3dm.NormalUps = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalUpOffset.byteOffset, featureTableBytes);
}
if (featureTable.NormalRightOffset != null)
{
i3dm.NormalRights = GetVector3Collection(featureTable.InstancesLength, featureTable.NormalRightOffset.byteOffset, featureTableBytes);
}
if (featureTable.ScaleNonUniformOffset != null)
{
i3dm.ScaleNonUniforms = GetVector3Collection(featureTable.InstancesLength, featureTable.ScaleNonUniformOffset.byteOffset, featureTableBytes);
}
if (featureTable.BatchIdOffset != null)
{
// todo: uint8 is handled here (As byte), add uint16(default - as System.UInt16 ) and uint32 (as System.UInt32)
i3dm.BatchIdsBytes = GetBatchIdCollection(featureTable.InstancesLength, featureTable.BatchIdOffset.byteOffset, featureTableBytes);
}
return(i3dm);
}
}
