vfr_hud.cpp

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/*
 * Copyright 2014,2016 Vladimir Ermakov.
 *
 * This file is part of the mavros package and subject to the license terms
 * in the top-level LICENSE file of the mavros repository.
 * https://github.com/mavlink/mavros/tree/master/LICENSE.md
 */

#include <angles/angles.h>
#include <mavros/mavros_plugin.h>

#include <mavros_msgs/VFR_HUD.h>

namespace mavros {
namespace std_plugins {
class VfrHudPlugin : public plugin::PluginBase {
public:
        VfrHudPlugin() : PluginBase(),
                nh("~")
        { }

        void initialize(UAS &uas_)
        {
                PluginBase::initialize(uas_);

                vfr_pub = nh.advertise<mavros_msgs::VFR_HUD>("vfr_hud", 10);
        }

        Subscriptions get_subscriptions()
        {
                return {
                        make_handler(&VfrHudPlugin::handle_vfr_hud),
                };
        }

private:
        ros::NodeHandle nh;

        ros::Publisher vfr_pub;

        void handle_vfr_hud(const mavlink::mavlink_message_t *msg, mavlink::common::msg::VFR_HUD &vfr_hud)
        {
                auto vmsg = boost::make_shared<mavros_msgs::VFR_HUD>();
                vmsg->header.stamp = ros::Time::now();
                vmsg->airspeed = vfr_hud.airspeed;
                vmsg->groundspeed = vfr_hud.groundspeed;
                vmsg->heading = vfr_hud.heading;
                vmsg->throttle = vfr_hud.throttle / 100.0;      // comes in 0..100 range
                vmsg->altitude = vfr_hud.alt;
                vmsg->climb = vfr_hud.climb;

                vfr_pub.publish(vmsg);
        }
};
}       // namespace std_plugins
}       // namespace mavros

#include <pluginlib/class_list_macros.h>
PLUGINLIB_EXPORT_CLASS(mavros::std_plugins::VfrHudPlugin, mavros::plugin::PluginBase)