pxmlw6n2f/Gazebo_Distributed_MPI/plugins/RandomVelocityPlugin.hh

89 lines
2.9 KiB
C++

/*
* Copyright (C) 2015 Open Source Robotics Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef _GAZEBO_RANDOMVELOCITY_PLUGIN_HH_
#define _GAZEBO_RANDOMVELOCITY_PLUGIN_HH_
#include <sdf/sdf.hh>
#include <gazebo/common/UpdateInfo.hh>
#include <gazebo/common/Plugin.hh>
#include <gazebo/util/system.hh>
namespace gazebo
{
// Forward declare private data class.
class RandomVelocityPluginPrivate;
/// \brief Plugin that applies a random velocity to a linke periodically.
///
/// \verbatim
/// <!-- Apply a random velocity to the specified link-->
/// <!-- In this example, we move a box around. A key property of the link
/// is the frictionless surface -->
/// <plugin name="random" filename="libRandomVelocityPlugin.so">
///
/// <!-- Name of the link in this model that receives the velocity -->
/// <link>link</link>
///
/// <!-- Initial velocity that is applied to the link -->
/// <initial_velocity>0 0.5 0</initial_velocity>
///
/// <!-- Scaling factor that is used to compute a new velocity -->
/// <velocity_factor>0.5</velocity_factor>
///
/// <!-- Time, in seconds, between new velocities -->
/// <update_period>5</update_period>
///
/// <!-- Clamp the X velocity value to between -1 and 1.-->
/// <min_x>-1</min_x>
/// <max_x>1</max_x>
///
/// <!-- Clamp the Y velocity value to between 0 and 1.-->
/// <min_y>0</min_y>
/// <max_y>1</max_y>
///
/// <!-- Clamp the Z velocity value to zero.-->
/// <min_z>0</min_z>
/// <max_z>0</max_z>
/// </plugin>
/// \endverbatim
///
/// See worlds/random_velocity.world for a complete example.
class GAZEBO_VISIBLE RandomVelocityPlugin : public ModelPlugin
{
/// \brief Constructor.
public: RandomVelocityPlugin();
/// \brief Destructor.
public: ~RandomVelocityPlugin();
// Documentation inherited
public: virtual void Load(physics::ModelPtr _model, sdf::ElementPtr _sdf);
// Documentation inherited
public: virtual void Reset();
/// \brief Update the plugin once every iteration of simulation.
/// \param[in] _info World update information.
private: void Update(const common::UpdateInfo &_info);
/// \internal
/// \brief Private data pointer
private: RandomVelocityPluginPrivate *dataPtr;
};
}
#endif