int main ( void )
Definition at line 26 of file example-multifig.cxx.
 {
   cout.sync_with_stdio(true);
   size_t nspin=vtkfig::NSpin();
 
   const int Nx = 200;
   const int Ny = 250;
   
   std::vector<double> x(Nx);
   std::vector<double> y(Ny);
   std::vector<double> u(Nx*Ny);
   std::vector<double> v(Nx*Ny);
   
   std::vector<double> fx(Nx);
   std::vector<double> fy(Ny);
   
   const double x_low = -2.5;
   const double x_upp = 1.5;
   const double y_low = -2.5;
   const double y_upp = 4;
   const double dx = (x_upp-x_low)/(Nx-1);
   const double dy = (y_upp-y_low)/(Ny-1);
 
   auto colors=vtkfig::RGBTable
     { 
       {0.0, 0.0, 0.0, 1.0},
       {0.5, 0.0, 1.0, 0.0},
       {1.0, 1.0, 0.0, 0.0}
     };
 
   for (int i=0; i<Nx; i++)
     x[i] = x_low+i*dx;
   
   for (int i=0; i<Ny; i++)
     y[i] = y_low + i*dy;
 
   double t=0;
   double dt=0.1;
   size_t ii=0;
   auto t0=std::chrono::system_clock::now();
   double i0=ii;
 
 
   auto frame=vtkfig::Frame::New();
   frame->SetLayout(2,2);
   frame->LinkCamera(1,frame,0);
 
   frame->SetSize(800,400);
   frame->SetWindowTitle("vtkfig");
   frame->SetFrameTitle("Multiple figures in one frame");
 
   auto griddata=vtkfig::DataSet::New();
   griddata->SetRectilinearGrid(x,y);
   griddata->SetPointScalar(u ,"u");
   griddata->SetPointScalar(v ,"v");
 
 
 
   auto contour_u=vtkfig::ScalarView::New();
   contour_u->SetData(griddata,"u");
   contour_u->SetSurfaceRGBTable(colors,255);
   frame->AddFigure(contour_u,0);
 
   auto contour_v=vtkfig::ScalarView::New();
   contour_v->SetData(griddata,"v");
   contour_v->SetSurfaceRGBTable(colors,255);
   frame->AddFigure(contour_v,1);
 
   auto xyplot=vtkfig::XYPlot::New();
   xyplot->SetYRange(-0.5,0.5);
   frame->AddFigure(xyplot,2);
 
   while (ii<nspin)
   {
     for (int i=0; i<Nx; i++)
       for (int j=0; j<Ny; j++)
       {
         double f=GU(x[i],y[j],t);
         u[j*Nx+i] = f;
         if (i==Nx/2) fy[j]=f;
         if (j==Ny/2) fx[i]=f;
 
         f=GV(x[i],y[j],t);
         v[j*Nx+i] = f;
       }
 
     griddata->SetPointScalar(u ,"u");
     griddata->SetPointScalar(v ,"v");
 
     xyplot->Clear();
     xyplot->SetPlotColor(0,0,1);
     xyplot->SetPlotLineType("-");
     xyplot->SetPlotLegend("y=0.5");
     xyplot->AddPlot(x, fx);
     xyplot->SetPlotColor(1,0,0);
     xyplot->SetPlotLineType("-");
     xyplot->SetPlotLegend("x=0.5");
     xyplot->AddPlot(y, fy);
     frame->Show();
 
     if (ii==3) 
       frame->WritePNG("example-multifig.png");
 
     t+=dt;
     auto t1=std::chrono::system_clock::now();
     double dt=std::chrono::duration_cast<std::chrono::duration<double>>(t1-t0).count();
     double i1=ii;
     if (dt>4.0)
     {
       printf("Frame rate: %.2f fps\n",(double)(i1-i0)/4.0);
       t0=std::chrono::system_clock::now();
       i0=ii;
       fflush(stdout);
     }
     ii++;
   }
 
 }
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