Precision.h

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#pragma once

#include <cmath>
#include <limits>



#define L_RES 1.e-6
#define A_RES 1.e-10


namespace Geom
{
class Precision
{
public:
    // Compare 2 points, samePoint etc, same as acsi: SPAresabs
    static const double linear_Resolution() { return L_RES; }
    // minimal angle, parallel, same as acis: SPAresnor
    static const double angle_Resolution() { return A_RES; }

    static const double tolerance() { return L_RES; }

    static const double confusion() { return L_RES; }

    static const double angular() { return A_RES; }



    static inline double infinite() { return std::numeric_limits<double>::infinity(); }

    static double shape_infinite() { return 1E06; }

    // Note:
    // If you want to use the std::numeric_limits min/max feature,
    // you need to undefine the symbols named min and max first.
    // These macros probably come from the windows.h.
    // (tp) 20111213

    static double min_double()
    {
        //              return std::numeric_limits<double>::min();
        return DBL_MIN;
    }

    static double max_double()
    {
        //              return std::numeric_limits<double>::max();
        return DBL_MAX;
    }

    static double epsilon() { return std::numeric_limits<double>::epsilon(); }

    static double epsilon(double v)
    {
        if (v >= 0.0)
            return std::nextafter(v, max_double()) - v;
        else
            return v - std::nextafter(v, min_double());
    }
};


}  // namespace Geom