p9fj35fl6/Gazebo_exercise/gazebo7_7.14.0_exercise/gazebo/sensors/Noise.hh

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/*
* Copyright (C) 2012 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_NOISE_HH_
#define _GAZEBO_NOISE_HH_
#include <vector>
#include <string>
#include <boost/function.hpp>
#include <sdf/sdf.hh>
#include "gazebo/rendering/RenderTypes.hh"
#include "gazebo/sensors/SensorTypes.hh"
#include "gazebo/util/system.hh"
namespace gazebo
{
namespace sensors
{
/// \addtogroup gazebo_sensors
/// \{
/// \class NoiseFactory Noise.hh sensors/sensors.hh
/// \brief Use this noise manager for creating and loading noise models.
class GAZEBO_VISIBLE NoiseFactory
{
/// \brief Load a noise model based on the input sdf parameters and
/// sensor type.
/// \param[in] _sdf Noise sdf parameters.
/// \param[in] _sensorType Type of sensor. This is currently used to
/// distinguish between image and non image sensors in order to create
/// the appropriate noise model.
/// \return Pointer to the noise model created.
public: static NoisePtr NewNoiseModel(sdf::ElementPtr _sdf,
const std::string &_sensorType = "");
};
/// \class Noise Noise.hh
/// \brief Noise models for sensor output signals.
class GAZEBO_VISIBLE Noise
{
/// \brief Which noise types we support
public: enum NoiseType
{
NONE,
CUSTOM,
GAUSSIAN
};
/// \brief Constructor. This should not be called directly unless creating
/// an empty noise model. Use NoiseFactory::NewNoiseModel to instantiate
/// a new noise model.
/// \param[in] _type Type of noise model.
/// \sa NoiseFactory::NewNoiseModel
public: explicit Noise(NoiseType _type);
/// \brief Destructor.
public: virtual ~Noise();
/// \brief Load noise parameters from sdf.
/// \param[in] _sdf SDF parameters.
/// \param[in] _sensor Type of sensor.
public: virtual void Load(sdf::ElementPtr _sdf);
/// \brief Apply noise to input data value.
/// \param[in] _in Input data value.
/// \return Data with noise applied.
public: double Apply(double _in);
/// \brief Apply noise to input data value. This gets overriden by
/// derived classes, and called by Apply.
/// \param[in] _in Input data value.
/// \return Data with noise applied.
public: virtual double ApplyImpl(double _in);
/// \brief Finalize the noise model
public: virtual void Fini();
/// \brief Accessor for NoiseType.
/// \return Type of noise currently in use.
public: NoiseType GetNoiseType() const;
/// \brief Register a custom noise callback.
/// \param[in] _cb Callback function for applying a custom noise model.
/// This is useful if users want to use their own noise model from a
/// sensor plugin.
public: virtual void SetCustomNoiseCallback(
boost::function<double (double)> _cb);
/// \brief Set camera needed to create image noise. This is only needed
/// for image sensors, i.e. camera/multicamera/depth sensors, which use
/// shaders for more efficient noise generation.
/// \param[in] _camera Camera associated to an image sensor
public: virtual void SetCamera(rendering::CameraPtr _camera);
/// \brief Output information about the noise model.
/// \param[in] _out Output stream
public: virtual void Print(std::ostream &_out) const;
/// \brief Which type of noise we're applying
private: NoiseType type;
/// \brief Noise sdf element.
private: sdf::ElementPtr sdf;
/// \brief Callback function for applying custom noise to sensor data.
private: boost::function<double (double)> customNoiseCallback;
};
/// \}
}
}
#endif