{
  gStyle->SetPalette(55);
  TCanvas *c1 = new TCanvas("c1","",1024,768);
  c1->cd();
  TGraph2D *g = new TGraph2D("data_2D_z_25.dat");
  g->Draw("surf1");
  g->SetTitle("E_{z} for z = 25 #mum;x [#mum];y [#mum];E_{z} [V/cm]");
  g->GetXaxis()->SetTitleOffset(2);
  g->GetYaxis()->SetTitleOffset(2);
  g->GetZaxis()->SetTitleOffset(1.2);
  gPad->SetTheta(65.2993);
  gPad->SetPhi(-46.3073);
  gPad->Modified();
  gPad->Update();
  c1->SaveAs("data_2D_z_25.png");
  c1->SaveAs("data_2D_z_25.pdf");
}