OGS
Point3d.cpp
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1
11#include "Point3d.h"
12
13namespace MathLib
14{
15Point3d::Point3d() : x_({0, 0, 0}) {}
16
17Point3d::Point3d(std::array<double, 3> x) : x_(x[0], x[1], x[2]) {}
18
19MathLib::Point3d operator*(Eigen::Matrix3d const& mat,
20 MathLib::Point3d const& p)
21{
22 auto const& result = (mat * p.asEigenVector3d()).eval();
23 return MathLib::Point3d{{result[0], result[1], result[2]}};
24}
25
26double sqrDist(MathLib::Point3d const& p0, MathLib::Point3d const& p1)
27{
28 return (p0.asEigenVector3d() - p1.asEigenVector3d()).squaredNorm();
29}
30
31bool lessEq(Point3d const& a, Point3d const& b, double eps)
32{
33 auto absAndRelDiffLargerThanEps = [eps](double const u,
34 double const v) -> bool
35 {
36 return std::abs(u - v) > eps * std::min(std::abs(v), std::abs(u)) &&
37 std::abs(u - v) > eps;
38 };
39
40 return std::lexicographical_compare(
41 a.data(), a.data() + 3, b.data(), b.data() + 3,
42 [&absAndRelDiffLargerThanEps](auto const u, auto const v)
43 {
44 if (absAndRelDiffLargerThanEps(u, v))
45 {
46 return u <= v;
47 }
48 return true;
49 });
50}
51
52extern const Point3d ORIGIN{{{0.0, 0.0, 0.0}}};
53} // namespace MathLib
Definition of the Point3d class.
Eigen::Vector3d const & asEigenVector3d() const
Definition Point3d.h:64
const double * data() const
Definition Point3d.h:60
MathLib::Point3d operator*(Eigen::Matrix3d const &mat, MathLib::Point3d const &p)
Definition Point3d.cpp:19
static const double p
static const double u
static const double v
bool lessEq(Point3d const &a, Point3d const &b, double eps)
Definition Point3d.cpp:31
double sqrDist(MathLib::Point3d const &p0, MathLib::Point3d const &p1)
Definition Point3d.cpp:26
const Point3d ORIGIN
Definition Point3d.h:98