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TriangleSeries.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.1 $
00022 // $Date: 2005/12/15 00:35:47 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/domain/pattern/TriangleSeries.h,v $
00024                                                                         
00025 #ifndef TriangleSeries_h
00026 #define TriangleSeries_h
00027 
00028 // File: ~/domain/pattern/TriangleSeries.h
00029 //
00030 // Written: Andreas Schellenberg (andreas.schellenberg@gmx.net)
00031 // Created: 02/04
00032 // Revision: A
00033 //
00034 // Purpose: This file contains the class definition for TriangleSeries.
00035 // TriangleSeries is a concrete class. A TriangleSeries object provides
00036 // a triangle time series. The factor is given by the pseudoTime (t),
00037 // triangle period (T) and phase shift (phi),
00038 // and a constant factor provided in the constructor,
00039 // the duration by tStart and tFinal;
00040 //
00041 // What: "@(#) TriangleSeries.h, revA"
00042 
00043 #include <TimeSeries.h>
00044 
00045 class TriangleSeries : public TimeSeries
00046 {
00047   public:
00048     // constructors
00049     TriangleSeries(double tStart, double tFinish,
00050         double period, double shift, double cFactor = 1.0);
00051 
00052     TriangleSeries();
00053     
00054     // destructor
00055     ~TriangleSeries();
00056     
00057     // method to get load factor
00058     double getFactor(double pseudoTime);
00059     double getDuration () {return tFinish-tStart;}
00060     double getPeakFactor () {return cFactor;}
00061     double getTimeIncr (double pseudoTime) {return tFinish-tStart;}
00062     
00063     // methods for output    
00064     int sendSelf(int commitTag, Channel &theChannel);
00065     int recvSelf(int commitTag, Channel &theChannel, 
00066                  FEM_ObjectBroker &theBroker);
00067 
00068     void Print(OPS_Stream &s, int flag =0);    
00069     
00070   protected:
00071         
00072   private:
00073     double tStart;    // start time of time series (sec)
00074     double tFinish;   // end time of time series (sec)
00075     double period;    // period of triangle series (sec)
00076     double shift;     // phase shift of triangle series (sec)
00077     double cFactor;   // amplitude of triangle series
00078 };
00079 
00080 #endif

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