message: Added comment why it's Vector3d.
diff: @@ -38,6 +38,9 @@ class EsdfMap {
  // Specific accessor functions for esdf maps.
  // Returns true if the point exists in the map AND is observed.
  + // These accessors use Vector3d and doubles explicitly rather than
  + // FloatingPoint to have a standard, cast-free interface to planning
  + // functions.
  bool getDistanceAtPosition(const Eigen::Vector3d& position,
  double* distance) const;
  