custom.C File Reference

Detailed Description

This program creates and fills one and two dimensional histogram Macro used to demonstrate usage of custom HTML page in custom.htm One can use plain JavaScript to assign different actions with HTML buttons.

 
#include "TH1.h"
#include "TH2.h"
#include "THttpServer.h"
#include "TRandom3.h"
#include "TSystem.h"
#include <string>
 
void custom()
{
   // Create two histograms
   TH1F *hpx = new TH1F("hpx", "This is the px distribution", 100, -4, 4);
   TH2F *hpxpy = new TH2F("hpxpy", "py vs px", 40, -4, 4, 40, -4, 4);
 
   // http server with port 8080, use jobname as top-folder name
   THttpServer *serv = new THttpServer("http:8080");
 
   // Detect macro file location to specify full path to the HTML file
   std::string fname = __FILE__;
   auto pos = fname.find("custom.C");
   if (pos > 0)
      fname.resize(pos);
   else
      fname.clear();
   fname.append("custom.htm");
 
   // use custom web page as default
   serv->SetDefaultPage(fname);
 
   // Fill histograms randomly
   TRandom3 random;
   Float_t px, py;
 
   // press Ctrl-C to stop macro
   while (!gSystem->ProcessEvents()) {
      random.Rannor(px,py);
      hpx->Fill(px);
      hpxpy->Fill(px,py);
   }
}

Author

Sergey Linev

Definition in file custom.C.