/home/master/UCL/VisualizationLibrary/src/vlVolume/VolumePlot.hpp

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/*  Visualization Library                                                             */
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#ifndef VolumePlot_INCLUDE_ONCE
#define VolumePlot_INCLUDE_ONCE

#include <vlVolume/link_config.hpp>
#include <vlGraphics/Actor.hpp>
#include <vlGraphics/Geometry.hpp>
#include <vlGraphics/Text.hpp>
#include <vlGraphics/Effect.hpp>
#include <vlCore/Transform.hpp>
#include <vlGraphics/ActorTreeAbstract.hpp>
#include <vlGraphics/SceneManagerActorTree.hpp>
#include <vlVolume/MarchingCubes.hpp>

namespace vl
{
  class SceneManager;

  class VLVOLUME_EXPORT VolumePlot: public Object
  {
    VL_INSTRUMENT_CLASS(vl::VolumePlot, Object)

  public:
    class Function
    {
    public:
      virtual float operator()(float x, float y, float z) const = 0;
    };

  public:
    VolumePlot();

    void compute(const Function& func, float threshold);

    const Actor* isosurfaceActor() const { return mIsosurfaceActor.get(); }
    Actor* isosurfaceActor() { return mIsosurfaceActor.get(); }

    const Geometry* isosurfaceGeometry() const { return mIsosurfaceGeometry.get(); }
    Geometry* isosurfaceGeometry() { return mIsosurfaceGeometry.get(); }

    const Effect* isosurfaceEffect() const { return mIsosurfaceEffect.get(); }
    Effect* isosurfaceEffect() { return mIsosurfaceEffect.get(); }

    const Effect* boxEffect() const { return mBoxEffect.get(); }
    Effect* boxEffect() { return mBoxEffect.get(); }

    const fvec3& minCorner() const { return mMinCorner; }
    void setMinCorner(const fvec3& min_corner) { mMinCorner = min_corner; }

    const fvec3& maxCorner() const { return mMaxCorner; }
    void setMaxCorner(const fvec3& max_corner) { mMaxCorner = max_corner; }

    const Transform* plotTransform() const { return mPlotTransform.get(); }
    Transform* plotTransform() { return mPlotTransform.get(); }
    void setPlotTransform(Transform* tr) { mPlotTransform = tr; }

    const ivec3& samplingResolution() const { return mSamplingResolution; }
    void setSamplingResolution(const ivec3& size) { mSamplingResolution = size; }

    const String& labelFormat() const { return mLabelFormat; }
    void setLabelFormat(const String& format) { mLabelFormat = format; }

    const Font* labelFont() const { return mLabelFont.get(); }
    Font* labelFont() { return mLabelFont.get(); }
    void setLabelFont(Font* font) { mLabelFont = font; }

    const Text* textTemplate() const { return mTextTemplate.get(); }
    Text* textTemplate() { return mTextTemplate.get(); }

    ActorTree* actorTreeMulti() { return mActorTreeMulti.get(); }
    const ActorTree* actorTreeMulti() const { return mActorTreeMulti.get(); }

  protected:
    void setupLabels(const String& format, const fvec3& min_corner, const fvec3& max_corner, Font* font, Transform* root_tr);
    void evaluateFunction(float* scalar, const fvec3& min_corner, const fvec3& max_corner, const Function& func);

  protected:
    std::vector< ref<Actor> > mActors;
    ref<Transform> mPlotTransform;
    ivec3 mSamplingResolution;
    String mLabelFormat;
    ref< Font > mLabelFont;
    fvec3 mMinCorner;
    fvec3 mMaxCorner;
    ref<Geometry> mIsosurfaceGeometry;
    ref<Actor> mIsosurfaceActor;
    ref<Effect> mIsosurfaceEffect;
    ref<Effect> mBoxEffect;
    ref<Text> mTextTemplate;
    ref<ActorTree> mActorTreeMulti;
  };
}

#endif