collision_distance_field_ros_helpers.h

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#pragma once
 
#include <ros/ros.h>
#include <planning_models/robot_model.h>
#include <collision_distance_field/collision_distance_field_types.h>
 
namespace collision_detection
{
static inline bool loadLinkBodySphereDecompositions(
    ros::NodeHandle& nh, const planning_models::RobotModelConstPtr& robot_model,
    std::map<std::string, std::vector<collision_detection::CollisionSphere> >& link_body_spheres)
{
  if (!nh.hasParam("link_spheres"))
  {
    ROS_INFO_STREAM("No parameter for link spheres");
    return false;
  }
  XmlRpc::XmlRpcValue link_spheres;
  nh.getParam("link_spheres", link_spheres);
 
  if (link_spheres.getType() != XmlRpc::XmlRpcValue::TypeArray)
  {
    ROS_WARN_STREAM("Link spheres not an array");
    return false;
  }
 
  if (link_spheres.size() == 0)
  {
    ROS_WARN_STREAM("Link spheres has no entries");
    return false;
  }
  for (int i = 0; i < link_spheres.size(); ++i)
  {
    if (!link_spheres[i].hasMember("link"))
    {
      ROS_WARN_STREAM("All link spheres must have link");
      continue;
    }
    if (!link_spheres[i].hasMember("spheres"))
    {
      ROS_WARN_STREAM("All link spheres must have spheres");
      continue;
    }
    std::string link = link_spheres[i]["link"];
    XmlRpc::XmlRpcValue spheres = link_spheres[i]["spheres"];
    if (spheres.getType() != XmlRpc::XmlRpcValue::TypeArray)
    {
      if (std::string(spheres) == "none")
      {
        ROS_DEBUG_STREAM("No spheres for " << link);
        std::vector<collision_detection::CollisionSphere> coll_spheres;
        link_body_spheres[link_spheres[i]["link"]] = coll_spheres;
        continue;
      }
    }
    std::vector<collision_detection::CollisionSphere> coll_spheres;
    for (int j = 0; j < spheres.size(); ++j)
    {
      if (!spheres[j].hasMember("x"))
      {
        ROS_WARN_STREAM("All spheres must specify a value for x");
        continue;
      }
      if (!spheres[j].hasMember("y"))
      {
        ROS_WARN_STREAM("All spheres must specify a value for y");
        continue;
      }
      if (!spheres[j].hasMember("z"))
      {
        ROS_WARN_STREAM("All spheres must specify a value for z");
        continue;
      }
      if (!spheres[j].hasMember("radius"))
      {
        ROS_WARN_STREAM("All spheres must specify a value for radius");
        continue;
      }
      Eigen::Vector3d rel(spheres[j]["x"], spheres[j]["y"], spheres[j]["z"]);
      ROS_DEBUG_STREAM("Link " << link_spheres[i]["link"] << " sphere " << coll_spheres.size() << " " << rel.x() << " "
                               << rel.y() << " " << rel.z());
      collision_detection::CollisionSphere cs(rel, spheres[j]["radius"]);
      coll_spheres.push_back(cs);
    }
    link_body_spheres[link_spheres[i]["link"]] = coll_spheres;
    // std::cerr << "For link " << link_spheres[i]["link"] << " adding " << coll_spheres.size() << " spheres " <<
    // std::endl;
  }
  return true;
}
}  // namespace collision_detection