Using STD0903 Converter to create a VMTI packet and get a data buffer (C++).

This is an example of STD0903 Converter usage for VMTI packet creation. This code snippet demonstrates how to create an VMTI packet, set Local Data Set parameters, add VTargetSeries and encode it (get a pointer to the data buffer.

• Add references to STD0903ConvLib.dll and lib files, include a header file.

#include "ISTD0903Conv.h"

• Create STD0903ConvLib instance.

  // Create VMTI Converter
  ISTD0903Converter* pVmtiConv = CreateSTD0903Converter();

• Create the VMTI packet and add some LocalData parameters

  // Create VMTI_Packet
  VMTI_Packet* pEncPckt = new  VMTI_Packet();
  pPckt->SetUnixTimeStampNow();
  pPckt->SetVmtiSystemName("Test System");
  pPckt->SetVmtiLDSVersion(3);
  pPckt->SetTotalNumberOfTargets(2);
  pPckt->SetNumberOfReportedTargets(2);
  pPckt->SetVideoFrameNumber(1);
  pPckt->SetFrameWidth(720);
  pPckt->SetFrameHeight(480);
  pPckt->SetVmtiSourceSensor("EO Nose");
  pPckt->SetVmtiSensorHorizontalFOV(12.5);
  pPckt->SetVmtiSensorVerticalFOV(12.5);

• Create a target pack and add it to the VMTI packet's VTargetSeries

  // Create a target pack and set the values
  VTargetPack* pvPack1 = new VTargetPack(27 + i, 3);
  
  pvPack1->SetTargetCentroidPixel(409600);                // Tag 1
  pvPack1->SetBoundingBoxTopLeftPixel(409600);            // Tag 2
  pvPack1->SetBoundingBoxBottomRightPixel(409600);        // Tag 3
  pvPack1->SetTargetPriority(1);                          // Tag 4
  pvPack1->SetTargetConfidenceLevel(80);                  // Tag 5
  pvPack1->SetNewDetectionFlag((unsigned short)4);        // Tag 6
  pvPack1->SetPercentageOfTargetPixels(50);               // Tag 7
  pvPack1->SetTargetColor(0x558833);                      // Tag 8
  pvPack1->SetTargetIntensity(13140);                     // Tag 9
  pvPack1->SetTargetLocationLatOffset(10.0);              // Tag 10
  pvPack1->SetTargetLocationLonOffset(10.0);              // Tag 11
  pvPack1->SetTargetHeight(1000);                         // Tag 12
  pvPack1->SetBoundingBoxTopLeftLatOffset(-0.5);          // Tag 13
  pvPack1->SetBoundingBoxTopLeftLonOffset(0.5);           // Tag 14
  pvPack1->SetBoundingBoxBottomRightLatOffset(-10.0);     // Tag 15
  pvPack1->SetBoundingBoxBottomRightLonOffset(10.0);      // Tag 16
  
  LocationType tLoc = LocationType(43, 110, 10000.0);
  pvPack1->SetTargetLocation(tLoc);                       // Tag 17
  
  // Create VTrackerLDS, set the values and add to the pack
  VTrackerLDS* vTLds = CreateVTrackerLDS(10);
  pvPack1->SetVTrackerLDS(vTLds);
  delete vTLds;           // delete it, we no longer need it.
  
  // Add to the packet
  pPckt->AddVTargetPack(pvPack1);

CreateVTrackerLDS function

VTrackerLDS* CreateVTrackerLDS(unsigned __int64 id)
{
        VTrackerLDS* vLds = new VTrackerLDS(id);

        vLds->SetDetectionStatus(TrackStatus::Active);
        vLds->SetStartTimeStamp(VTrackerLDS::GetTimeStampNow());
        vLds->SetEndTimeStamp(VTrackerLDS::GetTimeStampNow());
        vLds->SetAlgorithm("Algo1");
        vLds->SetConfidence(50);
        vLds->SetNumberOfPoints(NUMBER_OF_POINTS);

        // Add Locus (let's set NUMBER_OF_POINTS items)
        for (int i = 0; i < NUMBER_OF_POINTS; i++)
        {
                vLds->AddToLocus(LocationType(34.5 + (double)i / 1000.0, 32.0 + (double)i / 1000.0, 10.0));
        }

        vLds->SetVelocity(VAType(300.0, 200.0, 100.0));
        vLds->SetAcceleration(VAType(0.2, 0.4, 0.6));

        return vLds;
}

• Encode the packet and get the data buffer

  unsigned char* pBuff = pVmtiConv->Encode(pPckt, length);

For the complete sample source please see Sample Code - MISB 0903 Converter Demo Application (C++)