static void parseDataDescriptor(List <NatNetML.DataDescriptor> description)
{
// [NatNet] Request a description of the Active Model List from the server.
// This sample will list only names of the data sets, but you can access
int numDataSet = description.Count;
Console.WriteLine("Total {0} data sets in the capture:", numDataSet);
for (int i = 0; i < numDataSet; ++i)
{
int dataSetType = description[i].type;
// Parse Data Descriptions for each data sets and save them in the delcared lists and hashtables for later uses.
switch (dataSetType)
{
case ((int)NatNetML.DataDescriptorType.eMarkerSetData):
NatNetML.MarkerSet mkset = (NatNetML.MarkerSet)description[i];
Console.WriteLine("\tMarkerSet ({0})", mkset.Name);
break;
case ((int)NatNetML.DataDescriptorType.eRigidbodyData):
NatNetML.RigidBody rb = (NatNetML.RigidBody)description[i];
Console.WriteLine("\tRigidBody ({0})", rb.Name);
// Saving Rigid Body Descriptions
mRigidBodies.Add(rb);
break;
case ((int)NatNetML.DataDescriptorType.eSkeletonData):
NatNetML.Skeleton skl = (NatNetML.Skeleton)description[i];
Console.WriteLine("\tSkeleton ({0}), Bones:", skl.Name);
//Saving Skeleton Descriptions
mSkeletons.Add(skl);
// Saving Individual Bone Descriptions
for (int j = 0; j < skl.nRigidBodies; j++)
{
Console.WriteLine("\t\t{0}. {1}", j + 1, skl.RigidBodies[j].Name);
int uniqueID = skl.ID * 1000 + skl.RigidBodies[j].ID;
int key = uniqueID.GetHashCode();
mHtSkelRBs.Add(key, skl.RigidBodies[j]); //Saving the bone segments onto the hashtable
}
break;
case ((int)NatNetML.DataDescriptorType.eForcePlateData):
NatNetML.ForcePlate fp = (NatNetML.ForcePlate)description[i];
Console.WriteLine("\tForcePlate ({0})", fp.Serial);
// Saving Force Plate Channel Names
mForcePlates.Add(fp);
for (int j = 0; j < fp.ChannelCount; j++)
{
Console.WriteLine("\t\tChannel {0}: {1}", j + 1, fp.ChannelNames[j]);
}
break;
default:
// When a Data Set does not match any of the descriptions provided by the SDK.
Console.WriteLine("\tError: Invalid Data Set");
break;
}
}
}
static void processFrameData(NatNetML.FrameOfMocapData data)
{
/* Parsing Rigid Body Frame Data */
for (int i = 0; i < mRigidBodies.Count; i++)
{
int rbID = mRigidBodies[i].ID; // Fetching rigid body IDs from the saved descriptions
for (int j = 0; j < data.nRigidBodies; j++)
{
if (rbID == data.RigidBodies[j].ID) // When rigid body ID of the descriptions matches rigid body ID of the frame data.
{
NatNetML.RigidBody rb = mRigidBodies[i]; // Saved rigid body descriptions
NatNetML.RigidBodyData rbData = data.RigidBodies[j]; // Received rigid body descriptions
if (rbData.Tracked == true)
{
Console.WriteLine("\tRigidBody ({0}):", rb.Name);
Console.WriteLine("\t\tpos ({0:N3}, {1:N3}, {2:N3})", rbData.x, rbData.y, rbData.z);
// Rigid Body Euler Orientation
float[] quat = new float[4] {
rbData.qx, rbData.qy, rbData.qz, rbData.qw
};
float[] eulers = new float[3];
eulers = NatNetClientML.QuatToEuler(quat, NATEulerOrder.NAT_XYZr); //Converting quat orientation into XYZ Euler representation.
double xrot = RadiansToDegrees(eulers[0]);
double yrot = RadiansToDegrees(eulers[1]);
double zrot = RadiansToDegrees(eulers[2]);
Console.WriteLine("\t\tori ({0:N3}, {1:N3}, {2:N3})", xrot, yrot, zrot);
}
else
{
Console.WriteLine("\t{0} is not tracked in current frame", rb.Name);
}
}
}
}
/* Parsing Skeleton Frame Data */
for (int i = 0; i < mSkeletons.Count; i++) // Fetching skeleton IDs from the saved descriptions
{
int sklID = mSkeletons[i].ID;
for (int j = 0; j < data.nSkeletons; j++)
{
if (sklID == data.Skeletons[j].ID) // When skeleton ID of the description matches skeleton ID of the frame data.
{
NatNetML.Skeleton skl = mSkeletons[i]; // Saved skeleton descriptions
NatNetML.SkeletonData sklData = data.Skeletons[j]; // Received skeleton frame data
Console.WriteLine("\tSkeleton ({0}):", skl.Name);
Console.WriteLine("\t\tSegment count: {0}", sklData.nRigidBodies);
/* Now, for each of the skeleton segments */
for (int k = 0; k < sklData.nRigidBodies; k++)
{
NatNetML.RigidBodyData boneData = sklData.RigidBodies[k];
/* Decoding skeleton bone ID */
int skeletonID = HighWord(boneData.ID);
int rigidBodyID = LowWord(boneData.ID);
int uniqueID = skeletonID * 1000 + rigidBodyID;
int key = uniqueID.GetHashCode();
NatNetML.RigidBody bone = (RigidBody)mHtSkelRBs[key]; //Fetching saved skeleton bone descriptions
//Outputting only the hip segment data for the purpose of this sample.
if (k == 0)
{
Console.WriteLine("\t\t{0:N3}: pos({1:N3}, {2:N3}, {3:N3})", bone.Name, boneData.x, boneData.y, boneData.z);
}
}
}
}
}
/* Parsing Force Plate Frame Data */
for (int i = 0; i < mForcePlates.Count; i++)
{
int fpID = mForcePlates[i].ID; // Fetching force plate IDs from the saved descriptions
for (int j = 0; j < data.nForcePlates; j++)
{
if (fpID == data.ForcePlates[j].ID) // When force plate ID of the descriptions matches force plate ID of the frame data.
{
NatNetML.ForcePlate fp = mForcePlates[i]; // Saved force plate descriptions
NatNetML.ForcePlateData fpData = data.ForcePlates[i]; // Received forceplate frame data
Console.WriteLine("\tForce Plate ({0}):", fp.Serial);
// Here we will be printing out only the first force plate "subsample" (index 0) that was collected with the mocap frame.
for (int k = 0; k < fpData.nChannels; k++)
{
Console.WriteLine("\t\tChannel {0}: {1}", fp.ChannelNames[k], fpData.ChannelData[k].Values[0]);
}
}
}
}
Console.WriteLine("\n");
}
//static uint GPS_LEAPSECONDS_MILLIS = 18000;
static void processFrameData(NatNetML.FrameOfMocapData data)
{
bool data_gogo = true;
/* Parsing Rigid Body Frame Data */
for (int i = 0; i < mRigidBodies.Count; i++)
{
int rbID = mRigidBodies[i].ID; // Fetching rigid body IDs from the saved descriptions
for (int j = 0; j < data.nRigidBodies; j++)
{
if (rbID == data.RigidBodies[j].ID) // When rigid body ID of the descriptions matches rigid body ID of the frame data.
{
NatNetML.RigidBody rb = mRigidBodies[i]; // Saved rigid body descriptions
NatNetML.RigidBodyData rbData = data.RigidBodies[j]; // Received rigid body descriptions
if (rbData.Tracked == true)
{
#if DEBUG_MSG
Console.WriteLine("\tRigidBody ({0}):", rb.Name);
Console.WriteLine("\t\tpos ({0:N3}, {1:N3}, {2:N3})", rbData.x, rbData.y, rbData.z);
// Rigid Body Euler Orientation
float[] quat = new float[4] {
rbData.qx, rbData.qy, rbData.qz, rbData.qw
};
float[] eulers = new float[3];
eulers = NatNetClientML.QuatToEuler(quat, NATEulerOrder.NAT_XYZr); //Converting quat orientation into XYZ Euler representation.
double xrot = RadiansToDegrees(eulers[0]);
double yrot = RadiansToDegrees(eulers[1]);
double zrot = RadiansToDegrees(eulers[2]);
Console.WriteLine("\t\tori ({0:N3}, {1:N3}, {2:N3})", xrot, yrot, zrot);
#endif
if (drones.ContainsKey(rb.Name))
{
DroneData drone = drones[rb.Name];
drone.lost_count = 0;
long cur_ms = stopwatch.ElapsedMilliseconds;
if (drone.send_count > 0)
{
drone.send_count--;
}
else if (data_gogo)
{
drone.send_count = 10;
data_gogo = false;
MAVLink.mavlink_att_pos_mocap_t att_pos = new MAVLink.mavlink_att_pos_mocap_t();
att_pos.time_usec = (ulong)(cur_ms * 1000);
att_pos.x = rbData.x; //north
att_pos.y = rbData.z; //east
att_pos.z = -rbData.y; //down
att_pos.q = new float[4] {
rbData.qw, rbData.qx, rbData.qz, -rbData.qy
};
byte[] pkt = mavlinkParse.GenerateMAVLinkPacket10(MAVLink.MAVLINK_MSG_ID.ATT_POS_MOCAP, att_pos);
if (drone.lastTime >= 0)
{
MAVLink.mavlink_vision_speed_estimate_t vis_speed = new MAVLink.mavlink_vision_speed_estimate_t();
float total_s = (cur_ms - drone.lastTime) * 0.001f;
vis_speed.x = (rbData.x - drone.lastPosN) / total_s;
vis_speed.y = (rbData.z - drone.lastPosE) / total_s;
vis_speed.z = (-rbData.y - drone.lastPosD) / total_s;
vis_speed.usec = (ulong)(cur_ms * 1000);
byte[] pkt2 = mavlinkParse.GenerateMAVLinkPacket10(MAVLink.MAVLINK_MSG_ID.VISION_SPEED_ESTIMATE, vis_speed);
int total_len = pkt.Length + pkt2.Length;
byte[] uwb_data = new byte[10 + total_len + 1];
uwb_data[0] = 0x54;
uwb_data[1] = 0xf1;
uwb_data[2] = 0xff;
uwb_data[3] = 0xff;
uwb_data[4] = 0xff;
uwb_data[5] = 0xff;
uwb_data[6] = 2;
uwb_data[7] = drone.uwb_tag_id;
uwb_data[8] = (byte)(total_len & 0xff);
uwb_data[9] = (byte)(total_len >> 16);
Array.Copy(pkt, 0, uwb_data, 10, pkt.Length);
Array.Copy(pkt2, 0, uwb_data, 10 + pkt.Length, pkt2.Length);
byte chk_sum = 0;
foreach (byte uwb_data_byte in uwb_data)
{
chk_sum += uwb_data_byte;
}
uwb_data[uwb_data.Length - 1] = chk_sum;
mavSock.SendTo(uwb_data, drone.ep);
}
}
drone.lastTime = cur_ms;
drone.lastPosN = rbData.x;
drone.lastPosE = rbData.z;
drone.lastPosD = -rbData.y;
}
}
else
{
Console.WriteLine("\t{0} is not tracked in current frame", rb.Name);
/*if (drones.ContainsKey(rb.Name))
* {
* DroneData drone = drones[rb.Name];
* drone.lost_count++;
* if (drone.lost_count > 3)
* {
* drone.lost_count = 0;
* MAVLink.mavlink_gps_input_t gps_input = new MAVLink.mavlink_gps_input_t();
* gps_input.gps_id = 0;
* gps_input.fix_type = (byte)MAVLink.GPS_FIX_TYPE.NO_FIX;
* byte[] pkt = mavlinkParse.GenerateMAVLinkPacket10(MAVLink.MAVLINK_MSG_ID.GPS_INPUT, gps_input);
* mavSock.SendTo(pkt, drone.ep);
* }
* }*/
}
}
}
}
/* Parsing Skeleton Frame Data */
for (int i = 0; i < mSkeletons.Count; i++) // Fetching skeleton IDs from the saved descriptions
{
int sklID = mSkeletons[i].ID;
for (int j = 0; j < data.nSkeletons; j++)
{
if (sklID == data.Skeletons[j].ID) // When skeleton ID of the description matches skeleton ID of the frame data.
{
NatNetML.Skeleton skl = mSkeletons[i]; // Saved skeleton descriptions
NatNetML.SkeletonData sklData = data.Skeletons[j]; // Received skeleton frame data
Console.WriteLine("\tSkeleton ({0}):", skl.Name);
Console.WriteLine("\t\tSegment count: {0}", sklData.nRigidBodies);
/* Now, for each of the skeleton segments */
for (int k = 0; k < sklData.nRigidBodies; k++)
{
NatNetML.RigidBodyData boneData = sklData.RigidBodies[k];
/* Decoding skeleton bone ID */
int skeletonID = HighWord(boneData.ID);
int rigidBodyID = LowWord(boneData.ID);
int uniqueID = skeletonID * 1000 + rigidBodyID;
int key = uniqueID.GetHashCode();
NatNetML.RigidBody bone = (RigidBody)mHtSkelRBs[key]; //Fetching saved skeleton bone descriptions
//Outputting only the hip segment data for the purpose of this sample.
if (k == 0)
{
Console.WriteLine("\t\t{0:N3}: pos({1:N3}, {2:N3}, {3:N3})", bone.Name, boneData.x, boneData.y, boneData.z);
}
}
}
}
}
/* Parsing Force Plate Frame Data */
for (int i = 0; i < mForcePlates.Count; i++)
{
int fpID = mForcePlates[i].ID; // Fetching force plate IDs from the saved descriptions
for (int j = 0; j < data.nForcePlates; j++)
{
if (fpID == data.ForcePlates[j].ID) // When force plate ID of the descriptions matches force plate ID of the frame data.
{
NatNetML.ForcePlate fp = mForcePlates[i]; // Saved force plate descriptions
NatNetML.ForcePlateData fpData = data.ForcePlates[i]; // Received forceplate frame data
Console.WriteLine("\tForce Plate ({0}):", fp.Serial);
// Here we will be printing out only the first force plate "subsample" (index 0) that was collected with the mocap frame.
for (int k = 0; k < fpData.nChannels; k++)
{
Console.WriteLine("\t\tChannel {0}: {1}", fp.ChannelNames[k], fpData.ChannelData[k].Values[0]);
}
}
}
}
#if DEBUG_MSG
Console.WriteLine("\n");
#endif
}