Removed support for EigenL2 due to updated query.

Author: Jaybro

src/pico_tree/pico_tree/eigen.hpp

@@ -337,27 +337,6 @@ class EigenL1 {
   inline Scalar operator()(Scalar const x) const { return std::abs(x); }
 };
 
-//! \brief EigenL2 metric for measuring Euclidean distances between points.
-template <typename Scalar>
-class EigenL2 {
- public:
-  //! \brief Calculates the distance between points \p p0 and \p p1.
-  template <typename Derived0, typename Derived1>
-  inline Scalar operator()(
-      Eigen::MatrixBase<Derived0> const& p0,
-      Eigen::MatrixBase<Derived1> const& p1) const {
-    return (p0 - p1).norm();
-  }
-
-  //! \brief Calculates the distance between two coordinates.
-  inline Scalar operator()(Scalar const x, Scalar const y) const {
-    return std::abs(x - y);
-  }
-
-  //! \brief Returns the absolute value of \p x.
-  inline Scalar operator()(Scalar const x) const { return std::abs(x); }
-};
-
 //! \brief The EigenL2Squared semimetric measures squared Euclidean distances
 //! between points.
 template <typename Scalar>

test/pico_tree/eigen_test.cpp

@@ -28,20 +28,6 @@ TEST(EigenTest, EigenL1) {
   EXPECT_FLOAT_EQ(metric(-3.1f), 3.1f);
 }
 
-TEST(EigenTest, EigenL2) {
-  using PointX = Eigen::Vector2f;
-  using Scalar = typename PointX::Scalar;
-
-  PointX p0{10.0f, 1.0f};
-  PointX p1{7.0f, 5.0f};
-
-  pico_tree::EigenL2<Scalar> metric;
-
-  EXPECT_FLOAT_EQ(metric(p0, p1), 5.0f);
-  EXPECT_FLOAT_EQ(metric(-3.1f, 8.9f), 12.0f);
-  EXPECT_FLOAT_EQ(metric(-3.1f), 3.1f);
-}
-
 TEST(EigenTest, EigenL2Squared) {
   using PointX = Eigen::Vector2f;
   using Scalar = typename PointX::Scalar;