standardSignaturePropagator.h

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/*******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include "vrfobjcore/signaturePropagator.h"
#include "vrfobjcore/managedObjectList.h"
#include <matrix/vlVector.h>

class DtStandardPropagatorDescriptor;
class DtVrfObject;

#include "vrfobjcore/vrfobjcoreDefines.h"
class DT_DLL_vrfobjcore DtStandardSignaturePropagator : public DtSignaturePropagator
{
public:
   DtStandardSignaturePropagator(const DtSignaturePropagatorDescriptor* desc,
      DtPhysicalWorld* physicalWorld);

   virtual ~DtStandardSignaturePropagator();

   virtual void init();

   virtual double calculateApparentSignature(double absoluteSignature,
      const DtSignaturePropagatorArgs& args) const;

   static DtSignaturePropagator* create(const DtSignaturePropagatorDescriptor* desc,
      DtPhysicalWorld* physicalWorld);

protected:

   virtual bool getViewPoints(const DtSignaturePropagatorArgs& args, std::vector<DtVector>& points) const;

   virtual bool getTargetPoints(const DtSignaturePropagatorArgs& args, std::vector<DtVector>& points) const;

   virtual void getTargetPointsAtRange(const DtVector& viewerLoc,
      const DtVector& targetLoc, double range, bool clampToTerrain,
      double clampAlt, std::vector<DtVector>& points) const;

   virtual bool viewerAndTargetOverlap(const DtSignaturePropagatorArgs& args) const;

   virtual double getLinearEngineeringObjectsModifier(
      const DtSignaturePropagatorArgs& args) const;

   void clampAltitudeToTerrain(const DtVector& targetObjectPosition, 
      double clampAlt, DtVector& location) const;

   bool clampViewPoints(const DtVrfObject* object) const;

private:
   DtStandardSignaturePropagator(const DtStandardSignaturePropagator& orig);
   DtStandardSignaturePropagator& operator=(const DtStandardSignaturePropagator& orig);

protected:
   const DtStandardPropagatorDescriptor* myStandardPropagatorDescriptor;

   DtManagedObjectListConstPtr myEngineeringLineList;
};