|| || || || || || || ||

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InOutCircle.h

Go to the documentation of this file.

#ifndef Impala_Core_Array_Trait_InOutCircle_h
#define Impala_Core_Array_Trait_InOutCircle_h

#include "Core/Array/Pattern/Categories.h"
#include "Core/Array/Element/E1Cast.h"

namespace Impala
{
namespace Core
{
namespace Array
{
namespace Trait
{


template<class ArrayT>
class InOutCircle
{
public:
    typedef Pattern::TagPixOpIn        DirectionCategory;
    typedef Pattern::TagTransVar       TransVarianceCategory;
    typedef Pattern::Tag1Phase         PhaseCategory;

    typedef typename ArrayT::ArithType ArithT;

    InOutCircle(int centerX, int centerY, Real64 radius, ArithT circleValue,
                ArithT outsideValue)
    {
        mCenterX = centerX;
        mCenterY = centerY;
        mRadiusSquared = radius * radius;
        mCircleValue = circleValue;
        mOutsideValue = outsideValue;
    }

    const ArithT&
    DoIt(int x, int y)
    {
        int d = (mCenterX - x) * (mCenterX - x) + (mCenterY - y) * (mCenterY - y);
        if(d <= mRadiusSquared) { 
            mRes = mCircleValue;
        } else {
            mRes = mOutsideValue;
        }
        return mRes; // without mRes compiler warns ???
    }

private:

    int    mCenterX;
    int    mCenterY;
    Real64 mRadiusSquared;
    ArithT mCircleValue;
    ArithT mOutsideValue;
    ArithT mRes;
};

} // namespace Trait
} // namespace Array
} // namespace Core
} // namespace Impala

#endif

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