src/geo2d/dis/pp_p/lib.hpp
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include "../../../math/qpow/basic/lib.hpp" | ||
| 4 | #include "../pp/lib.hpp" | ||
| 5 | |||
| 6 | namespace tifa_libs { | ||
| 7 | |||
| 8 | // distance of two points | ||
| 9 | // @return Chebyshev dis if p = 0, otherwise $(|x_1-x_2|^p + |y_1-y_2|^p)$ | ||
| 10 | template <class FP, u32 p = 2> | ||
| 11 | 5111093 | CEXP FP distp_PP(point<FP> CR p1, point<FP> CR p2) NE { | |
| 12 | if CEXP (p == 0) return max(abs(p1.x - p2.x), abs(p1.y - p2.y)); // Chebyshev | ||
| 13 | else if CEXP (p == 1) return abs(p1.x - p2.x) + abs(p1.y - p2.y); // Manhattan | ||
| 14 | 5111093 | else if CEXP (p == 2) return (p1 - p2).norm2(); // Euclidian | |
| 15 | else return qpow(abs(p1.x - p2.x), p) + qpow(abs(p1.y - p2.y), p); | ||
| 16 | } | ||
| 17 | |||
| 18 | template <class FP, u32 p = 2> | ||
| 19 | 52666558 | CEXP auto comp_distp(point<FP> CR p1, point<FP> CR p2, FP r) NE { | |
| 20 | 52666558 | if CEXP (std::floating_point<FP>) return comp(dist_PP<FP, p>(p1, p2), r); | |
| 21 | else return comp(distp_PP<FP, p>(p1, p2), qpow(r, p ? p : 1)); | ||
| 22 | } | ||
| 23 | template <class FP, u32 p = 2> | ||
| 24 | 10600 | CEXP auto comp_distp(point<FP> CR p1, point<FP> CR p2, point<FP> CR q1, point<FP> CR q2) NE { | |
| 25 | 10600 | if CEXP (std::floating_point<FP>) return comp(dist_PP<FP, p>(p1, p2), dist_PP<FP, p>(q1, q2)); | |
| 26 | else return comp(distp_PP<FP, p>(p1, p2), distp_PP<FP, p>(q1, q2)); | ||
| 27 | } | ||
| 28 | |||
| 29 | } // namespace tifa_libs | ||
| 30 |