imstkPointPicker.h

/*
** This file is part of the Interactive Medical Simulation Toolkit (iMSTK)
** iMSTK is distributed under the Apache License, Version 2.0.
** See accompanying NOTICE for details.
*/

#pragma once

#include "imstkPickingAlgorithm.h"

namespace imstk
{
class CollisionDetectionAlgorithm;

class PointPicker : public PickingAlgorithm
{
public:
    PointPicker() = default;
    ~PointPicker() override = default;

    void requestUpdate() override;

    void setPickingRay(const Vec3d& rayStart, const Vec3d& rayDir,
                       const double maxDist = -1.0)
    {
        m_rayStart = rayStart;
        m_rayDir   = rayDir.normalized();
        m_maxDist  = maxDist;
    }

    const Vec3d& getPickRayStart() const { return m_rayStart; }
    const Vec3d& getPickRayDir() const { return m_rayDir; }

    void setUseFirstHit(const bool useFirstHit) { m_useFirstHit = useFirstHit; }
    bool getUseFirstHit() const { return m_useFirstHit; }

protected:
    Vec3d  m_rayStart    = Vec3d::Zero();
    Vec3d  m_rayDir      = Vec3d::Zero();
    double m_maxDist     = -1.0;
    bool   m_useFirstHit = true;
};
} // namespace imstk