ppovb5fc7/gazebo/plugins/RaySensorNoisePlugin.cc

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2019-03-25 11:01:43 +08:00
/*
* 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.
*
*/
#include <functional>
#include "gazebo/sensors/Noise.hh"
#include "RaySensorNoisePlugin.hh"
using namespace gazebo;
// Register this plugin with the simulator
GZ_REGISTER_SENSOR_PLUGIN(RaySensorNoisePlugin)
/////////////////////////////////////////////////
RaySensorNoisePlugin::RaySensorNoisePlugin()
{
this->fixedNoiseRate = 0.005;
this->sign = 1;
}
/////////////////////////////////////////////////
RaySensorNoisePlugin::~RaySensorNoisePlugin()
{
}
/////////////////////////////////////////////////
void RaySensorNoisePlugin::Load(sensors::SensorPtr _parent,
sdf::ElementPtr /*_sdf*/)
{
if (!_parent)
{
gzerr << "RaySensorNoisePlugin requires a ray sensor as its parent.\n";
return;
}
sensors::NoisePtr noise = _parent->Noise(sensors::RAY_NOISE);
if (noise)
{
noise->SetCustomNoiseCallback(
std::bind(&RaySensorNoisePlugin::OnApplyNoise, this,
std::placeholders::_1));
}
else
{
gzwarn << "No noise found. Please add noise element to you ray sensor sdf "
<< "and set noise type to \"custom\"" << std::endl;
}
}
/////////////////////////////////////////////////
double RaySensorNoisePlugin::OnApplyNoise(double _in)
{
// Apply alternating random noise.
double randNoise = math::Rand::GetDblUniform(0, this->fixedNoiseRate);
this->sign *= -1;
return _in + this->sign*randNoise*_in;
}