geometry_msgs.hpp

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#pragma once

#include <vector>

#include <geometry_msgs/Point.h>
#include <geometry_msgs/Point32.h>
#include <geometry_msgs/Quaternion.h>
#include <geometry_msgs/Transform.h>
#include <geometry_msgs/Vector3.h>

namespace cras {

#define DEFINE_CONVERTING_GET_PARAM_ROS_VECTOR3(resultType, scalarType, defaultUnit) \
DEFINE_CONVERTING_GET_PARAM(resultType, std::vector<scalarType>, defaultUnit, [](const ::std::vector<scalarType>& v){ \
  if (v.size() != 3) \
    throw ::std::runtime_error( \
      ::cras::format("Cannot load %s parameter from an array of length %lu", #resultType, v.size())); \
  resultType m; m.x = v[0]; m.y = v[1]; m.z = v[2]; \
  return m; \
})

DEFINE_CONVERTING_GET_PARAM_ROS_VECTOR3(::geometry_msgs::Vector3, double, "")
DEFINE_CONVERTING_GET_PARAM_ROS_VECTOR3(::geometry_msgs::Point, double, "")
DEFINE_CONVERTING_GET_PARAM_ROS_VECTOR3(::geometry_msgs::Point32, float, "")

DEFINE_CONVERTING_GET_PARAM(::geometry_msgs::Quaternion, ::std::vector<double>, "", [](const ::std::vector<double>& v) {
  if (v.size() != 3 && v.size() != 4)
    throw ::std::runtime_error(::cras::format("Cannot load %s parameter from an array of length %lu",
      "geometry_msgs::Quaternion", v.size()));
  ::geometry_msgs::Quaternion m;
  if (v.size() == 4)
  {
    m.x = v[0]; m.y = v[1]; m.z = v[2]; m.w = v[3];
  }
  else
  {
    ::tf2::Quaternion q; q.setRPY(v[0], v[1], v[2]);
    m.x = q.getX(); m.y = q.getY(); m.z = q.getZ(); m.w = q.getW();
  }
  return m;
})

DEFINE_CONVERTING_GET_PARAM(::geometry_msgs::Transform, ::std::vector<double>, "", [](const ::std::vector<double>& v) {
  if (v.size() != 6 && v.size() != 7 && v.size() != 16)
    throw ::std::runtime_error(::cras::format("Cannot load %s parameter from an array of length %lu",
      "geometry_msgs::Transform", v.size()));
  ::geometry_msgs::Transform m;
  if (v.size() == 6 || v.size() == 7)
  {
    m.translation.x = v[0]; m.translation.y = v[1]; m.translation.z = v[2];
    if (v.size() == 6)
    {
      ::tf2::Quaternion q; q.setRPY(v[3], v[4], v[5]);
      m.rotation.x = q.getX(); m.rotation.y = q.getY(); m.rotation.z = q.getZ(); m.rotation.w = q.getW();
    }
    else
    {
      m.rotation.x = v[3]; m.rotation.y = v[4]; m.rotation.z = v[5]; m.rotation.w = v[6];
    }
  }
  else
  {
    m.translation.x = v[3]; m.translation.y = v[7]; m.translation.z = v[11];
    ::tf2::Matrix3x3 r(v[0], v[1], v[2], v[4], v[5], v[6], v[8], v[9], v[10]);
    ::tf2::Quaternion q;
    r.getRotation(q);
    m.rotation.x = q.getX(); m.rotation.y = q.getY(); m.rotation.z = q.getZ(); m.rotation.w = q.getW();
  }
  return m;
})

}