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/*
VASP modular - vector assembling signal processor / objects for Max/MSP and PD
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#ifndef __VASP_ENV_H
#define __VASP_ENV_H
#include "vasp.h"
class Env:
public flext
{
public:
Env(): cnt(0),pos(NULL),val(NULL) {}
Env(I argc,const t_atom *argv);
// Env(const Env &p);
~Env();
static BL ChkArgs(I argc,const t_atom *argv);
V MakeList(flext::AtomList &ret) const;
V Clear();
BL Ok() const { return cnt && pos != NULL && val != NULL; }
// friend class Iter;
class Iter
{
public:
Iter(const Env &e);
V Init(R p);
R ValFwd(R p)
{
if(p > npt) UpdateFwd(p);
return pvl+k*(p-ppt);
}
R ValBwd(R p)
{
if(p < ppt) UpdateBwd(p);
return pvl+k*(p-ppt);
}
protected:
V UpdateFwd(R p);
V UpdateBwd(R p);
const Env &bp;
I ix;
R ppt,npt;
R pvl,nvl;
R k;
};
I Count() const { return cnt; }
const R *Pos() const { return pos; }
const R *Val() const { return val; }
R Pos(I ix) const { return pos[ix]; }
R Val(I ix) const { return val[ix]; }
protected:
I cnt;
R *pos,*val;
};
#endif
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