distance.hpp File Reference

Distance and Hausdorff-style measurements between shapes. More...

#include "implementation/intersection.hpp"
#include "shape/convex.hpp"
#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstddef>
#include <ranges>

Go to the source code of this file.

Namespaces
namespace	pgl

Macros
#define	PGL_HPI_SQUARED_DISTANCE(ConceptName, ArgType)

Detailed Description

Distance and Hausdorff-style measurements between shapes.

Every squaredDistance / squaredHausdorffDistance overload is templated on a ResultNumber coordinate type that defaults to the calling shape's NumberType, mirroring the intersection API. Overloads whose closest point lies in a shape's interior divide by a squared length; with an integer ResultNumber that division truncates, so callers that need an accurate result must request a floating-point or pgl::Rational ResultNumber.

Macro Definition Documentation

PGL_HPI_SQUARED_DISTANCE

#define PGL_HPI_SQUARED_DISTANCE	(		ConceptName,
			ArgType )

Value:

template <class PointType, class LabelType>                                                \
template <class ResultNumber, ConceptName ArgType>                                         \
constexpr auto HalfplaneIntersection<PointType, LabelType>::squaredDistance(               \
    const ArgType& other) const {                                                          \
    if (intersects(other)) {                                                                \
        return ResultNumber{};                                                              \
    }                                                                                       \
    return detail::regionEdgesSquaredDistance<ResultNumber>(*this, other);                  \
}