AngleCriterion.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "Mesh/Criteria/Criterion.h"
 
namespace UE::CADKernel
{
 
class FAngleCriterion : public FCriterion
{
    friend class FEntity;
 
protected:
    double AngleCriterionValue;
    double SinMaxAngle;
 
    FAngleCriterion(double DegreeAngle)
    {
        AngleCriterionValue = FMath::DegreesToRadians(DegreeAngle);
        SinMaxAngle = sin(AngleCriterionValue * 0.5);
    }
 
    FAngleCriterion() = default;
 
public:
 
    virtual void Serialize(FCADKernelArchive& Ar) override
    {
        FCriterion::Serialize(Ar);
        Ar << AngleCriterionValue;
        Ar << SinMaxAngle;
    }
 
    virtual double Value() const override
    {
        return AngleCriterionValue;
    }
 
    static double DefaultValue()
    {
        return FMath::DegreesToRadians(15.0);
    }
 
    virtual bool IsAppliedBetweenBreaks() const override
    {
        return true;
    }
 
    virtual ECriterion GetCriterionType() const override
    {
        return ECriterion::Angle;
    }
 
 
protected:
 
    virtual double ComputeDeltaU(double ChordLength, double DeltaU, double Sag) const override
    {
        return 0.25 * SinMaxAngle * ChordLength * DeltaU / Sag;
    }
};
 
} // namespace UE::CADKernel