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/*
* Copyright (C) 2017 Thales Lima Oliveira <thales@ufu.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef RATELIMITER_H
#define RATELIMITER_H
#include "ControlElement.h"
class RateLimiterForm;
/**
* @class RateLimiter
* @author Thales Lima Oliveira <thales@ufu.br>
* @date 05/10/2017
* @brief Limits the rising and/or falling rate.<br>
* @file RateLimiter.h
*/
class RateLimiter : public ControlElement
{
public:
RateLimiter(int id);
~RateLimiter();
virtual void Draw(wxPoint2DDouble translation, double scale) const;
virtual void DrawDC(wxPoint2DDouble translation, double scale, wxGraphicsContext* gc) const;
virtual bool Contains(wxPoint2DDouble position) const { return m_rect.Contains(position); }
virtual bool Intersects(wxRect2DDouble rect) const { return m_rect.Intersects(rect); }
virtual bool ShowForm(wxWindow* parent, Element* element);
virtual void Rotate(bool clockwise = true);
virtual void UpdatePoints();
double GetUpLimit() const { return m_upLimit; }
double GetLowLimit() const { return m_lowLimit; }
void SetUpLimit(double upLimit) { m_upLimit = upLimit; }
void SetLowLimit(double lowLimit) { m_lowLimit = lowLimit; }
/**
* @brief Calculate the rate and limits it if exceeds.<br>
*
* The rate is calculated by:
* <center>\f$ rate = \frac{x(i) - y(i-1)}{\Delta t} \f$</center>
* Where, \f$ x(i) \f$ is the current input and \f$ y(i-1) \f$ is the previous output.<br><br>
* If the \f$rate\f$ is greater than rising rate (\f$ R \f$), the output will be:<br>
* <center>\f$ output = \Delta t \cdot R + y(i-1)\f$</center>
* If the \f$rate\f$ is lower than falling rate (\f$ F \f$), the output will be:<br><br>
* <center>\f$ output = \Delta t \cdot F + y(i-1) \f$</center>
* Otherwise:
* <center>\f$ output = input \f$</center>.
* @param input Input value.
* @param timeStep Time step.
* @return Always true.
*/
virtual bool Solve(double* input, double timeStep);
virtual rapidxml::xml_node<>* SaveElement(rapidxml::xml_document<>& doc, rapidxml::xml_node<>* elementListNode);
virtual bool OpenElement(rapidxml::xml_node<>* elementNode);
virtual Element* GetCopy();
protected:
double m_upLimit = 5.0;
double m_lowLimit = -5.0;
};
#endif // RATELIMITER_H
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