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        pr_bar=pr_bar_;	label_operation=label_operation_;

	FILE* f=fopen(fname,"r");

	if(f==NULL)	{	dg=NULL;	return;	}

	char str[400];
	fgets( str, 400, f );
	sscanf( str, "%d %d %d", N+2, N+1, N );
	//N[2]=N[1]=700; N[0]=708; ///!!!!!!!!!
	//if(DIM<3)	N[2]=1;	if(N[1]<=0)	N[1]=N[0];	if(N[2]<=0)	N[2]=N[1];

//	int temp_upsc=1,tu3=temp_upsc*temp_upsc*temp_upsc;	N[0]/=temp_upsc;	N[0]/=temp_upsc;	N[0]/=temp_upsc;

	this->chmap=NULL;	this->pres=NULL;

	int Nt=GetSize();

	if(Nt<=0)	{	dg=NULL;	return;	}

	this->dg = new int[Nt];  	memset(dg,inv,Nt);

	int ijk[3],i_,j_,k_; int cnt=0; 
	int iperm=0;	//index with permutation
	FILE* fff=fopen("LogLoad","w");
	fprintf(fff,"%d %d %d %d\n",N[0],N[1],N[2],Nt);
	for( int i=0; i<Nt; i++ )
	{	
		if(feof(f)) break;
		i_=i/N[2]/N[1];	j_=(i/N[2])%N[1];	k_=i%N[2];
		iperm=N[0]*N[1]*k_+N[0]*j_+i_;
		fscanf( f, "%d", dg+iperm );
		dg[iperm]=!!dg[iperm];
		cnt+=dg[iperm];
		//dg[i]=!dg[i];	//inverting for more interesting tests
	
		//if(i>0.15*Nt) break;

		if(i%500==0)
		{
			fprintf(fff,"%d,%d where dg=[%d]\n",i,iperm,dg[iperm]);
			SetProgress((int)(i*100./Nt),"Loading index...");
		}
	}
	fclose(fff);

if(i%500==0)
                {
                        fprintf(fff,"%d,%d where dg=[%d]\n",i,iperm,dg[iperm]);
                        SetProgress((int)(i*100./Nt),"Loading index...");
                }
        }