Computational routine
eng

deadband

File content

#include "scicos_block4.h"
#include <math.h>
void deadband(scicos_block *block,int flag)
{/* rpar[0]:upper limit,  rpar[1]:lower limit */
  double *_rpar=GetRparPtrs(block);
  int _ng=GetNg(block);
  double *_g=GetGPtrs(block);
  int *_mode=GetModePtrs(block);
  double *_u1=GetRealInPortPtrs(block,1);
  double *_y1=GetRealOutPortPtrs(block,1);

  switch(flag)
    {  
      /*----------------------------*/
    case 1:
      if ( !areModesFixed(block) ||_ng==0 ){
	if (_u1[0]>=_rpar[0]){
	  _y1[0]=_u1[0]-_rpar[0];
	}else if (_u1[0]<=_rpar[1]){
	  _y1[0]=_u1[0]-_rpar[1];
	}else {
	  _y1[0]=0.0;
	}
      }else{
	if (_mode[0]==1){
	  _y1[0]=_u1[0]-_rpar[0];
	}else if(_mode[0]==2) {
	  _y1[0]=_u1[0]-_rpar[1];
	}else{
	  _y1[0]=0.0;
	} 
      }
      break;
      /*----------------------------*/
    case 9:
      _g[0]=_u1[0]-(_rpar[0]);
      _g[1]=_u1[0]-(_rpar[1]);
      if (!areModesFixed(block)) {
	if (_g[0]>=0){
	  _mode[0]=1;
	}else if (_g[1]<=0){
	  _mode[0]=2;
	}else {
	  _mode[0]=3;
	}
      }
      break;
      /*----------------------------*/
    default: 
      break;
    }
}