XY.h

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// This file is part of the MercuryDPM project (https://www.mercurydpm.org).
// Copyright (c), The MercuryDPM Developers Team. All rights reserved.
// License: BSD 3-Clause License; see the LICENSE file in the root directory.
 
#ifndef XY_H
#define XY_H
 
#include <GeneralDefine.h>
#include <iostream>
#include "Math/Vector.h"
#include "Base_XY_XZ_YZ.h"
#include <vector>
#include <array>
 
class BaseParticle;
 
class BaseInteraction;
 
class DPMBase;
 
namespace CGCoordinates
{
 
class XY : public Base_XY_XZ_YZ
{
public:
    
    static void writeNames(std::ostream& os);
    
    void write(std::ostream& os) const;
    
    static Mdouble getVolumeOfAveragedDimensions(const Vec3D& min, const Vec3D& max);
    
    Mdouble getDistanceSquared(const Vec3D& p) const;
    
    static Mdouble getLength(const Vec3D& p);
    
    void setXY(Mdouble x, Mdouble y);
    
    Mdouble getINormal(const BaseInteraction& c, const Vec3D& normal) const;
    
    Mdouble getPNormal(const BaseInteraction& c, const Vec3D& normal) const;
    
    Mdouble getCNormal(const BaseInteraction& c, const Vec3D& normal) const;
    
    Mdouble getTangentialSquared(const BaseInteraction& c, Mdouble pNormal) const;
 
    static bool isResolvedIn(unsigned i) {return i==2?false:true;}
 
    static std::string getName();
 
protected:
    
    Mdouble x_;
    Mdouble y_;
};
 
template<typename T>
typename std::enable_if<std::is_base_of<CGCoordinates::XY, typename T::CoordinatesType>::value, void>::type
spaceEvenly(Vec3D min, Vec3D max, std::vector<std::size_t> nAll, std::vector<T>& points)
{
    std::size_t n0 = nAll[0];
    std::size_t n1 = nAll[1];
    Mdouble delta0 = (max.X - min.X) / n0;
    Mdouble delta1 = (max.Y - min.Y) / n1;
    Mdouble start0 = min.X + 0.5 * delta0;
    Mdouble start1 = min.Y + 0.5 * delta1;
    points.resize(n0 * n1);
    for (std::size_t i = 0; i < n0; i++)
    {
        for (std::size_t j = 0; j < n1; j++)
        {
            points[i * n1 + j].coordinates.setXY(start0 + delta0 * i, start1 + delta1 * j);
        }
    }
}
    
}
#endif