Description

Computes the central body intersection.

Syntax

[Visual Basic .NET]
Public Function ComputeCentralBodyIntersect( _ ByVal cbIntersectComputeParams As IAgStkRadarCBIntersectComputeParams _ ) As IAgStkRadarCBIntersectComputeResult

[Visual Basic .NET]

Public Function ComputeCentralBodyIntersect( _
   ByVal cbIntersectComputeParams As IAgStkRadarCBIntersectComputeParams _
) As IAgStkRadarCBIntersectComputeResult

[C#]
public IAgStkRadarCBIntersectComputeResult ComputeCentralBodyIntersect( IAgStkRadarCBIntersectComputeParams cbIntersectComputeParams );

[C#]

public IAgStkRadarCBIntersectComputeResult ComputeCentralBodyIntersect(

   IAgStkRadarCBIntersectComputeParams cbIntersectComputeParams

);

[Managed C++]
public: IAgStkRadarCBIntersectComputeResult^ ComputeCentralBodyIntersect( IAgStkRadarCBIntersectComputeParams ^ cbIntersectComputeParams );

[Managed C++]

public: IAgStkRadarCBIntersectComputeResult^ ComputeCentralBodyIntersect(

   IAgStkRadarCBIntersectComputeParams ^ cbIntersectComputeParams

);

[Java]
public IAgStkRadarCBIntersectComputeResult computeCentralBodyIntersect( IAgStkRadarCBIntersectComputeParams cbIntersectComputeParams );

[Java]

public IAgStkRadarCBIntersectComputeResult computeCentralBodyIntersect(

   IAgStkRadarCBIntersectComputeParams cbIntersectComputeParams

);

[Unmanaged C++]
public: HRESULT ComputeCentralBodyIntersect( IAgStkRadarCBIntersectComputeParams * cbIntersectComputeParams, IAgStkRadarCBIntersectComputeResult ** ReturnValue );

[Unmanaged C++]

public: HRESULT ComputeCentralBodyIntersect(

   IAgStkRadarCBIntersectComputeParams * cbIntersectComputeParams, 

   IAgStkRadarCBIntersectComputeResult ** ReturnValue

);

Parameters

cbIntersectComputeParams

Remarks

The ComputeCentralBodyIntersect method will set the IntersectionFound property of the returned IAgStkRadarCBIntersectComputeResult interface to true if the direction vector specified by the IAgStkRadarCBIntersectComputeParams input argument will intersect the central body and false otherwise. The origin of the direction vector is specified by the base vector. The intercept1 and intercept2 vectors are points of intersection with the central body. The multiplier1 and multiplier2 values represent scalars by which the direction vector is multiplied and then added to the base vector to yield the intersection points. The multipliers may be positive or negative depending on if the intersections occur in the positive or negative direction.

Example

C# Copy Code

IAgStkRadarLink radarLink = computeParams.RadarLink; 

IAgStkRadarLinkGeometry radarLinkGeom = radarLink.Geometry; 

IAgStkRadarPosVelProvider xmtRdrPosVel = radarLinkGeom.TransmitRadarPosVelProvider; 

 

CartVec xmtRdrPosCBF = new CartVec(xmtRdrPosVel.PositionCBFArray); 

 

IAgStkRadarCBIntersectComputeParams cbIntersectComputeParams = new AgStkRadarCBIntersectComputeParams() as IAgStkRadarCBIntersectComputeParams; 

cbIntersectComputeParams.SetBasePositionCBF(xmtRdrPosCBF.X, xmtRdrPosCBF.Y, xmtRdrPosCBF.Z); 

 

double sinOffset = Math.Sin(m_halfPi - OffsetAngle); 

double cosOffset = Math.Cos(m_halfPi - OffsetAngle); 

 

CartVec pt1Cbf = new CartVec(xmtRdrPosVel.ConvertBodyCartesianToCBFCartesianArray(cosOffset, 0.0, sinOffset)); 

cbIntersectComputeParams.SetDirectionCBF(pt1Cbf.X, pt1Cbf.Y, pt1Cbf.Z); 

 

IAgStkRadarCBIntersectComputeResult intersectResult1 = xmtRdrPosVel.ComputeCentralBodyIntersect(cbIntersectComputeParams); 

if (intersectResult1.IntersectionFound) 

{ 

    IAgStkRadarClutterPatch clutterPatch = computeParams.ClutterPatches.Add(); 

 

    CartVec intersectPt = new CartVec(intersectResult1.Intercept1CBFArray); 

    clutterPatch.SetPositionCBF(intersectPt.X, intersectPt.Y, intersectPt.Z); 

    clutterPatch.Area = PatchArea; 

}

C++ Copy Code

CComPtr<IAgStkRadarLink> pRadarLink; 

EXCEPTION_HR(computeParams->get_RadarLink(&pRadarLink)); 

 

CComPtr<IAgStkRadarLinkGeometry> pRadarLinkGeom; 

EXCEPTION_HR(pRadarLink->get_Geometry(&pRadarLinkGeom)); 

 

CComPtr<IAgStkRadarPosVelProvider> pXmtRdrPosVel; 

EXCEPTION_HR(pRadarLinkGeom->get_TransmitRadarPosVelProvider(&pXmtRdrPosVel)); 

 

CartVec xmtRdrPosCBF; 

EXCEPTION_HR(pXmtRdrPosVel->GetPositionCBF(&xmtRdrPosCBF.x, &xmtRdrPosCBF.y, &xmtRdrPosCBF.z)); 

 

CComPtr<IAgStkRadarCBIntersectComputeParams> pCbIntersectComputeParams; 

EXCEPTION_HR(pCbIntersectComputeParams.CoCreateInstance(__uuidof(AgStkRadarCBIntersectComputeParams))); 

 

EXCEPTION_HR(pCbIntersectComputeParams->SetBasePositionCBF(xmtRdrPosCBF.x, xmtRdrPosCBF.y, xmtRdrPosCBF.z)); 

 

CComPtr<IAgStkRadarClutterPatchCollection> pPatchCollection; 

EXCEPTION_HR(computeParams->get_ClutterPatches(&pPatchCollection)); 

 

VARIANT_BOOL intersectFound; 

double sinOffset = sin(AgCHALFPI - m_offsetAngle); 

double cosOffset = cos(AgCHALFPI - m_offsetAngle); 

 

CartVec pt1Cbf; 

EXCEPTION_HR(pXmtRdrPosVel->ConvertBodyCartesianToCBFCartesian(cosOffset, 0.0, sinOffset, &pt1Cbf.x, &pt1Cbf.y, &pt1Cbf.z)); 

EXCEPTION_HR(pCbIntersectComputeParams->SetDirectionCBF(pt1Cbf.x, pt1Cbf.y, pt1Cbf.z)); 

 

CComPtr<IAgStkRadarCBIntersectComputeResult> pIntersectResult1; 

EXCEPTION_HR(pXmtRdrPosVel->ComputeCentralBodyIntersect(pCbIntersectComputeParams, &pIntersectResult1)); 

EXCEPTION_HR(pIntersectResult1->get_IntersectionFound(&intersectFound)); 

if(intersectFound == VARIANT_TRUE) 

{ 

   CComPtr<IAgStkRadarClutterPatch> pClutterPatch; 

   EXCEPTION_HR(pPatchCollection->Add(&pClutterPatch)); 

 

   CartVec intersectPt; 

   EXCEPTION_HR(pIntersectResult1->GetIntercept1CBF(&intersectPt.x, &intersectPt.y, &intersectPt.z)); 

   EXCEPTION_HR(pClutterPatch->SetPositionCBF(intersectPt.x, intersectPt.y, intersectPt.z)); 

   EXCEPTION_HR(pClutterPatch->put_Area(m_patchArea)); 

}

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ComputeCentralBodyIntersect Method (IAgStkRadarPosVelProvider)
See Also Example

Description

Syntax

Parameters

Remarks

Example

See Also