CVehicleSimul_Holo.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2017, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */

#include "kinematics-precomp.h"  // Precompiled header

#include <mrpt/kinematics/CVehicleSimul_Holo.h>
#include <mrpt/math/wrap2pi.h>

using namespace mrpt::kinematics;

CVehicleSimul_Holo::CVehicleSimul_Holo()
{
        resetStatus();
        resetTime();
}

void CVehicleSimul_Holo::internal_simulControlStep(const double dt)
{
        // Control:
        if (m_vel_ramp_cmd.issue_time >= 0 &&
                m_time > m_vel_ramp_cmd.issue_time)  // are we executing any cmd?
        {
                const double t = m_time - m_vel_ramp_cmd.issue_time;
                const double T = m_vel_ramp_cmd.ramp_time;
                const double vxi = m_vel_ramp_cmd.init_vel.vx;
                const double vyi = m_vel_ramp_cmd.init_vel.vy;
                const double wi = m_vel_ramp_cmd.init_vel.omega;
                const double vxf = m_vel_ramp_cmd.target_vel_x;
                const double vyf = m_vel_ramp_cmd.target_vel_y;

                // "Blending" for vx,vy
                if (t <= m_vel_ramp_cmd.ramp_time)
                {
                        m_odometric_vel.vx = vxi + t * (vxf - vxi) / T;
                        m_odometric_vel.vy = vyi + t * (vyf - vyi) / T;
                }
                else
                {
                        m_odometric_vel.vx = m_vel_ramp_cmd.target_vel_x;
                        m_odometric_vel.vy = m_vel_ramp_cmd.target_vel_y;
                }

                // Ramp rotvel until aligned:
                const double Aang =
                        mrpt::math::wrapToPi(m_vel_ramp_cmd.dir - m_odometry.phi);
                if (std::abs(Aang) < mrpt::utils::DEG2RAD(1.0))
                {
                        m_odometric_vel.omega = .0;  // we are aligned.
                }
                else
                {
                        const double wf =
                                mrpt::utils::sign(Aang) * std::abs(m_vel_ramp_cmd.rot_speed);
                        if (t <= m_vel_ramp_cmd.ramp_time)
                        {
                                m_odometric_vel.omega = wi + t * (wf - wi) / T;
                        }
                        else
                        {
                                m_odometric_vel.omega = wf;
                        }
                }
        }
}

void CVehicleSimul_Holo::internal_clear() { m_vel_ramp_cmd = TVelRampCmd(); }
void CVehicleSimul_Holo::sendVelRampCmd(
        double vel, double dir, double ramp_time, double rot_speed)
{
        ASSERT_ABOVE_(ramp_time, 0);

        m_vel_ramp_cmd.issue_time = m_time;
        m_vel_ramp_cmd.ramp_time = ramp_time;
        m_vel_ramp_cmd.rot_speed = rot_speed;
        m_vel_ramp_cmd.init_vel = m_odometric_vel;
        m_vel_ramp_cmd.target_vel_x = cos(dir) * vel;
        m_vel_ramp_cmd.target_vel_y = sin(dir) * vel;
        m_vel_ramp_cmd.dir = dir;
}