velocityfunctionvolume.h

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#ifndef velocityfunctionvolume_h
#define velocityfunctionvolume_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        K. Tingdahl
 Date:          April 2005
 RCS:           $Id$
________________________________________________________________________


-*/

#include "velocitymod.h"
#include "samplingdata.h"
#include "thread.h"
#include "velocityfunction.h"
#include "velocitycalc.h"
#include "uistring.h"


class BinIDValueSet;
class SeisTrcReader;

namespace Vel
{

class VolumeFunctionSource;


mExpClass(Velocity) VolumeFunction : public Function
{ mODTextTranslationClass(VolumeFunction);
public:
                        VolumeFunction(VolumeFunctionSource&);
    bool                moveTo(const BinID&);
    StepInterval<float> getAvailableZ() const;
    StepInterval<float> getLoadedZ() const;

    void                enableExtrapolation(bool);
    void                setStatics(float t,float vel);

protected:

    bool                computeVelocity(float z0, float dz, int nr,
                                        float* res ) const;

    bool                        zit_;
    SamplingData<float>         velsampling_;
    TypeSet<float>              vel_;

    bool                        extrapolate_;
    float                       statics_;
    float                       staticsvel_;
};


mExpClass(Velocity) VolumeFunctionSource : public FunctionSource
{ mODTextTranslationClass(VolumeFunctionSource);
public:
                                mDefaultFactoryInstanciationBase(
                                "Velocity volume", 
                                toUiString(sFactoryKeyword()));
                                VolumeFunctionSource();

    const VelocityDesc&         getDesc() const         { return desc_; }

    bool                        zIsTime() const;
    bool                        setFrom(const MultiID& vel);

    VolumeFunction*             createFunction(const BinID&);

    void                        getAvailablePositions(BinIDValueSet&) const;
    bool                        getVel(const BinID&,SamplingData<float>&,
                                       TypeSet<float>&);

    static const char*          sKeyZIsTime() { return "Z is Time"; }

protected:
    static FunctionSource*      create(const MultiID&);
                                ~VolumeFunctionSource();

    SeisTrcReader*              getReader();

    ObjectSet<SeisTrcReader>    velreader_;
    ObjectSet<const void>       threads_;

    Threads::Lock               readerlock_;
    bool                        zit_;
    VelocityDesc                desc_;
};

} // namespace Vel

#endif