ROOT 4 DataMonitoring

Simple histogram filler

Makefile

# Makefile for the ROOT test programs.
#
include Makefile.arch
#
#------------------------------------------------------------------------------
#
#
HSIMPLEO      = hsimple.$(ObjSuf)
HSIMPLES      = hsimple.$(SrcSuf)
HSIMPLE       = hsimple$(ExeSuf)
#
#
OBJS          = $(HWORLDO) $(HSIMPLEO)
#
PROGRAMS      = $(HWORLD) $(HSIMPLE)
#
ROOTLIBS      = -L$(ROOTSYS)/lib -lCore -lCint -lRIO -lHist -lGraf -lGraf3d -lGpad -lNet -lTree -lRint -lPostscript -lMatrix -lPhysics
#
EVIOLIBS      =-L/home/daq/CODA/2.5/Linux/lib -lcoda -lpthread -lm -ldl -rdynamic
#
#------------------------------------------------------------------------------
#
.SUFFIXES: .$(SrcSuf) .$(ObjSuf) .$(DllSuf)
#
all:            $(PROGRAMS) 
# 
#
 $(HSIMPLE):     $(HSIMPLEO)
               $(LD) $(LDFLAGS) $^  $(ROOTLIBS) $(EVIOLIBS) $(OutPutOpt)$@
               $(MT_EXE)
               @echo "$@ done"
#
clean:
               @rm -f $(OBJS) core
#
distclean:      clean
               -@mv -f linearIO.root linearIO.roott
               @rm -f $(PROGRAMS) $(EVENTSO) $(EVENTLIB) *Dict.* *.def *.exp \
                  *.root *.ps *.so *.lib *.dll *.d *.log .def so_locations
               @rm -rf cxx_repository
               -@mv -f linearIO.roott linearIO.root
               -@cd RootShower && $(MAKE) distclean
               -@cd rhtml && $(MAKE) distclean
               -@cd RootIDE && $(MAKE) distclean
#
.SUFFIXES: .$(SrcSuf)
#
###
#
#
#
.$(SrcSuf).$(ObjSuf):
       $(CXX) $(CXXFLAGS) -c $<
#

hsimple.cxx

float GetData();
#ifndef __CINT__
#include "TFile.h"
#include "TH1.h"
#include "TH2.h"
#include "TProfile.h"
#include "TNtuple.h"
#include "TRandom.h"
#include "TApplication.h"
#include "TCanvas.h"
#include "TLine.h"
#include "TPaveLabel.h"
//______________________________________________________________________________
int main(int argc, char **argv)
{
 int i;
 TApplication theApp("App", &argc, argv);
 TCanvas *c = new TCanvas("c", "The Hello Canvas", 400, 400);
 c->Connect("Closed()", "TApplication", &theApp, "Terminate()");
 TH1F *Hist1= new TH1F("Hist1","Hist1",100,0,10);
 TCanvas *c = new TCanvas("c", "The Hello Canvas", 400, 400);
 c->Connect("Closed()", "TApplication", &theApp, "Terminate()");
 TH1F *Hist1= new TH1F("Hist1","Hist1",100,0,10);
 for(i=0; i<30; i++)
   {
     Hist1->Fill(GetData());
     Hist1->Draw();
     c->Update();
   }
 theApp.Run();
}
#endif
//
float GetData()
{
 Float_t random = gRandom->Rndm(1);
 return (2.5+random*5.0);
}