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C++ Grid2D类代码示例

本文整理汇总了C++中Grid2D类的典型用法代码示例。如果您正苦于以下问题：C++ Grid2D类的具体用法？C++ Grid2D怎么用？C++ Grid2D使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了Grid2D类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: rho_tmp

void Greenfb::add_boundary_potential(Grid2D& rho)
{
	if (a0 > 0.0 && b0 > 0.0) return;
	int i,j, u=0;
	int NX=rho.get_NX();
	int NY=rho.get_NY();
	double dx=rho.get_dx();
	double dy=rho.get_dy();
	Grid2D rho_tmp(NX,NY,dx,dy);
	double* rhotg =rho_tmp.grid;
	double* rhog =rho.grid;
	for(i=0; i<NX; i++)
		for(j=0; j<NY; j++)	 
		  rhotg[j+i*NY]=rhog[j+i*NY];	
	for(i=1; i<NX; i++)
	   {
		rhog[NY-1+i*NY]+=eps0*get_potential_b(u,rho_tmp);  
		u=u+1;
	   }
	for(j=1; j<NY-1; j++)	
	   {  
        rhog[(j)+(NX-1)*NY]+=eps0*get_potential_b(u,rho_tmp); 
		u=u+1;
       }
	for(i=1; i<NX-1; i++)
	   {
		rhog[(1)+(i)*NY]+=eps0*get_potential_b(u,rho_tmp);
		u=u+1;
	   }
	for(j=2; j<NY-1; j++)
	   {	  
        rhog[(j)+(1)*NY]+=eps0*get_potential_b(u,rho_tmp);
		u=u+1;
       }
}
开发者ID:gluap，项目名称:bphylib，代码行数:35，代码来源:poisson.cpp

示例2: densityXY

void PIC::densityXY(Grid2D& target)
{
  long j;
  target.reset();
  for(j=0; j<part.size(); j++)
	  target.Pic2Grid(macroN*charge_p/length,part[j].x,part[j].y);	
}
开发者ID:boine，项目名称:bphylib，代码行数:7，代码来源:pic.cpp

示例3: Boris_uxy

void PIC::Boris_uxy(Grid2D& Bx, Grid2D& By, double dt)
{
 long j;	
 double tx, ty, tabs2, Bxj, Byj, Babs, u2, gamma, ux0, uy0, uz0;	
 for(j=0; j<part.size(); j++)
   { 
    Bxj=Bx.Grid2PIC(part[j].x,part[j].y);
	Byj=By.Grid2PIC(part[j].x,part[j].y); 
	Babs=sqrt(pow(Bxj,2)+pow(Byj,2));
	u2=pow(part[j].uy,2)+pow(part[j].ux,2)+pow(part[j].uz,2);
	gamma=sqrt(1.0+u2/pow(clight,2));
	ux0=part[j].ux;uy0=part[j].uy;uz0=part[j].uz;
	if (Babs > 0.0) {
		tx=Bxj/Babs*tan(charge_p*dt*Babs/(2.0*gamma*mass_p));
		ty=Byj/Babs*tan(charge_p*dt*Babs/(2.0*gamma*mass_p)); }
	else {tx=0.0; ty=0.0;}
	
	tabs2=pow(tx,2)+pow(ty,2); 
	
	part[j].ux+=-part[j].uz*ty;
	part[j].uy+=part[j].uz*tx;
    part[j].uz+=part[j].ux*ty-part[j].uy*tx;
	
	part[j].ux=ux0-part[j].uz*ty*2.0/(1.0+tabs2);
	part[j].uy=uy0+part[j].uz*tx*2.0/(1.0+tabs2);
    part[j].uz=uz0+part[j].ux*ty*2.0/(1.0+tabs2)-part[j].uy*tx*2.0/(1.0+tabs2);
   }
}
开发者ID:boine，项目名称:bphylib，代码行数:28，代码来源:pic.cpp

示例4: poisson_xy

void poisson_xy(Grid2D& rho, Greenfb& gf)
{
 int j, l,NX=rho.get_NX(),NY=rho.get_NX();
 double dx=rho.get_dx(), dy=rho.get_dy();
 double *temx, *temy;
 temx=new double[NX];
 temy=new double[NY]; 

 gf.add_boundary_potential(rho);

 for(j=0; j<NX; j++)
   {  
    for(l=0;l<NY;l++)
     temy[l]=rho[l+NY*j];
    sinft(temy-1,NY);
    for(l=0;l<NY;l++)
     rho[l+NY*j]=temy[l];
   }
 
 for(l=0; l<NY; l++)
   {
    for(j=0;j<NX;j++)
     temx[j]=rho[l+j*NY];
    sinft(temx-1,NX);
    for(j=0;j<NX;j++)
     rho[l+NY*j]=temx[j];
   }
 
  for(j=1;j<NX;j++)
   for(l=1;l<NY;l++)
     rho[l+j*NY]*=-1.0/eps0             
                  *0.5*dx*dy/(cos(PI*j/NX)+cos(PI*l/NY)-2.0); 
		  
 for(j=0; j<NX; j++)
  {
   for(l=0;l<NY;l++)
    temy[l]=rho[l+NY*j];   
   sinft(temy-1,NY);
   for(l=0;l<NY;l++)
     rho[l+NY*j]=2.0*temy[l]/NY;   
  }
 
 for(l=0; l<NY; l++)
   {
    for(j=0;j<NX;j++)
     temx[j]=rho[l+j*NY];
    sinft(temx-1,NX);
    for(j=0;j<NX;j++)
     rho[l+NY*j]=2.0*temx[j]/NX;
   }

 delete temx;
 delete temy;
 
}
开发者ID:gluap，项目名称:bphylib，代码行数:55，代码来源:poisson.cpp

示例5: greenf

Greenfb::Greenfb(Grid2D& g, double a, double b) : greenf(2*g.get_NX()+2*g.get_NY()-8)
{
  int i, j, v, u=0;
  int Nb=greenf.size(); 	
  int NX=g.get_NX();
  int NY=g.get_NY();
  xb=vektor(Nb);
  yb=vektor(Nb);
  a0=a;
  b0=b;

  for(j=0; j<Nb; j++)
	 {
	   greenf[j]=g;
	   greenf[j].reset();
	 }

  for(i=1; i<NX; i++)
      {
		xb[u]=g.x[i];
		yb[u]=g.y[NY-1];
		u=u+1;
	  }	
  for(j=1; j<NY-1; j++)	
      {
		xb[u]=g.x[NX-1];
		yb[u]=g.y[j];
		u=u+1;
      }   
  for(i=1; i<NX-1; i++)
      {
		xb[u]=g.x[i];
		yb[u]=g.y[1];
	    u=u+1;
	  }
  for(j=2; j<NY-1; j++)	  
	 {
		xb[u]=g.x[1];
		yb[u]=g.y[j];
		u=u+1;
	  }
     	
  for(int j=0; j<Nb; j++)
    for (u=0; u<NX; u++)
		for(v=0; v<NY; v++)
		{
		 if (a0 == 0.0) greenf[j](u,v)=open_2D( g.x[u], xb[j], g.y[v], yb[j]);
		 else if (a0 > 0.0 && b0 == 0.0) greenf[j](u,v)=circle_2D( g.x[u], xb[j], g.y[v], yb[j]);
		 else greenf[j](u,v)=0.0;
		}

}
开发者ID:gluap，项目名称:bphylib，代码行数:52，代码来源:poisson.cpp

示例6: shift_uxy

void PIC::shift_uxy(Grid2D& pot, double dt)
{
  long j;
  double Ex, Ey;
  for(j=0; j<part.size(); j++)
   {
	Ex=-pot.Grid2dx(part[j].x,part[j].y);
	Ey=-pot.Grid2dy(part[j].x,part[j].y);
	
	part[j].ux+=charge_p*Ex*dt/mass_p;
	part[j].uy+=charge_p*Ey*dt/mass_p;
   }
}
开发者ID:boine，项目名称:bphylib，代码行数:13，代码来源:pic.cpp

示例7: get_potential_b

double Greenfb::get_potential_b(int j, Grid2D& rho)
{
	double tem=0.0;
	int NX=rho.get_NX();
	int NY=rho.get_NY();
	int u,v;
	double* rhog=rho.grid;
	double* greeng=greenf[j].grid;
	for (u=0; u<NX; u++)
		for(v=0; v<NY; v++)
		    tem+=greeng[v+u*NY]*rhog[v+u*NY];
	return tem;
	
}
开发者ID:gluap，项目名称:bphylib，代码行数:14，代码来源:poisson.cpp

示例8: kick

void Pic::kick(Grid2D& Ex, Grid2D& Ey, double ds){
  double beta0 = SP->beta0, gamma0 = SP->gamma0, A = SP->A, Z = SP->Z;
  double temp = qe*Z/(mp*A*pow(gamma0, 3)*pow(beta0*clight, 2))*ds;
  double ex, ey;

  for(long j=0; j < pics.size(); ++j){
    ex = temp*Ex.Grid2PIC(pics[j].x, pics[j].y);
    ey = temp*Ey.Grid2PIC(pics[j].x, pics[j].y);

  //momenta:

    pics[j].xs += ex;
    pics[j].ys += ey;
  }
}
开发者ID:sappel，项目名称:patric_mti，代码行数:15，代码来源:Pic.cpp

示例9: entropy

double Pic::entropy(Grid2D& target){
  double Hfunc = 0.0;
  int NPIC = get_size();
  int Nxs = target.get_NX();
  int Nys = target.get_NY();
  double dxs = target.get_dx();
  double dys = target.get_dy();
  gatherXsYs(1.0/(double)NPIC, target);
  for(int j=0; j<Nxs; ++j)
    for(int l=0; l<Nys; ++l){
      if(target(j, l) > 0.0)	
	Hfunc += target(j, l)*log(target(j, l))*dxs*dys;
    }
  return Hfunc;
}
开发者ID:sappel，项目名称:patric_mti，代码行数:15，代码来源:Pic.cpp

示例10: K

void Kriging2D::krigSurface(Grid2D              & trend,
                            const KrigingData2D & krigingData,
                            const CovGrid2D     & cov,
                            bool                  getResiduals)
{
  //
  // This routine by default returns z(x) = m(x) + k(x)K^{-1}(d - m). If only
  // residuals are wanted a copy of the input trend
  //
  int md = krigingData.getNumberOfData();
  const std::vector<int> & indexi = krigingData.getIndexI();
  const std::vector<int> & indexj = krigingData.getIndexJ();
  std::vector<float>       data   = krigingData.getData();   // Take an editable copy

  int nx = static_cast<int>(trend.GetNI());
  int ny = static_cast<int>(trend.GetNJ());

  if (md > 0 && md < nx*ny) {

    NRLib::SymmetricMatrix K(md);
    NRLib::Vector residual(md);
    NRLib::Vector k(md);
    NRLib::Vector x(md);

    subtractTrend(residual, data, trend, indexi, indexj);

    fillKrigingMatrix(K, cov, indexi, indexj);

    NRLib::CholeskySolve(K, residual, x);

    for (int i = 0 ; i < nx ; i++) {
      for (int j = 0 ; j < ny ; j++) {

        fillKrigingVector(k, cov, indexi, indexj, i, j);

        if (getResiduals) {  // Only get the residuals
          trend(i,j) = k * x;
        }
        else {
          trend(i,j) += k * x;
        }
      }
    }
  }
}
开发者ID:alfbr，项目名称:crava，代码行数:45，代码来源:kriging2d.cpp

示例11: poisson_xy

void poisson_xy(Grid2D& Ex, Grid2D& Ey, Grid2D& rho, Greenfb& gf)
{
 int NX=rho.get_NX(),NY=rho.get_NX();
 double dx=rho.get_dx(), dy=rho.get_dy();
 //rho.filtering();
 poisson_xy(rho,gf);
 double* rhog=rho.grid;
 double* Exg=Ex.grid;
 double* Eyg=Ey.grid;
 for(int j=3;j<NX-2;j++)
  for(int l=3;l<NY-2;l++)
   {
/*    Ex(j,l)=-(rho(j+1,l,1)-rho(j-1,l,1))/(2.0*dx);
    Ey(j,l)=-(rho(j,l+1,1)-rho(j,l-1,1))/(2.0*dy);*/
		Exg[l+j*NY]=-(rhog[l+(j+1)*NY]-rhog[l+(j-1)*NY])/(2.0*dx);
		    Eyg[l+j*NY]=-(rhog[l+1+j*NY]-rhog[l-1+j*NY])/(2.0*dy);
   }
}
开发者ID:boine，项目名称:bphylib，代码行数:18，代码来源:poisson.cpp

示例12: total_energy

double PIC::total_energy(Grid2D& pot)
{
	long j, n=part.size();
	double ekin=total_kinetic_energy();	
	double epot=0.0;
	for(j=0; j<n; j++)
		  epot+=macroN*pot.Grid2PIC(part[j].x,part[j].y);
	return ekin+epot;
}
开发者ID:boine，项目名称:bphylib，代码行数:9，代码来源:pic.cpp

示例13: init_rho

void init_rho(Grid2D& rho, double rho0, double rbeam)
{
	int l,i;
	int NX=rho.get_NX(), NY=rho.get_NY();
	for(l=0; l<NX; l++)
          for(i=0; i<NY; i++)
          {
           if ( sqrt(pow(rho.x[l],2)+pow(rho.y[i],2)) < rbeam ) 
		       rho(l,i)=rho0;
		   else rho(l,i)=0.0;	   
	  }
	  for(l=0; l<NX; l++)
            for(i=0; i<NY; i++)
            {
             if ( sqrt(pow(rho.x[l],2)+pow(rho.y[i],2)) < 0.8*rbeam ) 
		       rho(l,i)=0.0;	   
	     }
	  	  
}
开发者ID:boine，项目名称:bphylib，代码行数:19，代码来源:test_poisson.cpp

示例14: poisson_rz

void poisson_rz(Grid2D& rho)
{
 int j,m;
 int NR=rho.get_NX();
 int NZ=rho.get_NY();
 double dr=rho.get_dx();
 double dz=rho.get_dy();

 double *q1=new double[NR];
 double *q2=new double[NR];
 double *tem=new double[NZ];

 for(j=0; j<NR; j++)
   {
    for(m=0;m<NZ;m++)
     tem[m]=rho[m+NZ*j];
    realft(tem-1,NZ,1);
    //cosft1(tem-1,NZ);
    //sinft(tem-1,NZ);
    for(m=0;m<NZ;m++)
     rho[m+NZ*j]=tem[m];
   }

 for(m=2;m<NZ;m+=2)
    {
     for(j=0;j<NR;j++)
      {
       q1[j]=rho[m+NZ*j];
       q2[j]=rho[m+1+NZ*j];
      }       
     poisson_r(q1,(int)(0.5*m),NR,NZ,dr,dz);
     poisson_r(q2,(int)(0.5*m),NR,NZ,dr,dz);
     for(j=0;j<NR;j++)
      {
       rho[m+NZ*j]=q1[j];
       rho[m+1+NZ*j]=q2[j];
      }    
    }

  for(j=0;j<NR;j++)
       q1[j]=rho[1+NZ*j];
  poisson_r(q1,(int)(0.5*NZ),NR,NZ,dr,dz);
  for(j=0;j<NR;j++)
     rho[1+NZ*j]=q1[j];


  for(j=0;j<NR;j++)               
    q1[j]=rho[j*NZ];          
  poisson_r(q1,0,NR,NZ,dr,dz);      


  for(j=0;j<NR;j++)
    rho[0+NZ*j]=q1[j]; 


  for(j=0; j<NR; j++)
    { 
     for(m=0;m<NZ;m++)
      tem[m]=rho[m+NZ*j];
     realft(tem-1,NZ,-1);
     //cosft1(tem-1,NZ);
     //sinft(tem-1,NZ);
     for(m=0;m<NZ;m++)
      rho[m+NZ*j]=2.0*tem[m]/NZ;     
    }

  delete q1;
  delete q2;
  delete tem;
}
开发者ID:gluap，项目名称:bphylib，代码行数:70，代码来源:poisson.cpp

示例15: gatherXsYs

void Pic::gatherXsYs(double pic_charge, Grid2D& target){
  long j;
  target.reset();
  for(j=0; j<pics.size(); ++j)
    target.Pic2Grid(pic_charge, pics[j].xs, pics[j].ys);
}
开发者ID:sappel，项目名称:patric_mti，代码行数:6，代码来源:Pic.cpp


注：本文中的Grid2D类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。