#include "TCanvas.h"
#include "TStyle.h"
#include "TH1.h"
#include "TGaxis.h"
#include "TRandom.h"
#include "TGraph.h"

void twoscales()
{
gROOT->Reset();

c1 = new TCanvas("c1","Time History of Voltage/Current of 1 Channel",200,10,700,500);

c1->SetFillColor(42);
c1->SetGrid();


const int nrows = 10;
double tVect[nrows] = {1, 200, 300, 5000, 6000, 7000, 8000, 9000, 12000, 
14000};
double yVect[nrows] = {2, 3, 5, 8, 1, 4, 7, 8, 12, 14};
double xVect[nrows] = {3, 5, 4, 13, 4, 55, 6, 7, 2, 10};
TGraph *graph = new TGraph(nrows,tVect, yVect);


//markers:
//sets color of actual line that is graphed
graph->SetLineColor(kBlack);
graph->SetLineWidth(1);
graph->SetMarkerColor(kBlack);
graph->SetMarkerStyle(21);
graph->SetTitle("Voltage and Current");

//options.. L - simple polyline, F fills area draw, A axis drawn around graph
//C smooth curve drawn, * start plotted at each pt, P idem with current marker
//B bar chart drawn at each pt, etc. 
//graph->Draw();
graph->Draw("ALP");

c1->Update();



TGraph *graph2 = new TGraph(nrows, tVect, xVect);
Float_t rightmax = 1.1*graph2->GetHistogram()->GetMaximum();
Float_t scale = gPad->GetUymax()/rightmax;
//graph2->SetLineColor(kBlue);

double xVectPrime[nrows];
for (int counter = 0; counter < nrows; counter++){
	xVectPrime[counter] = xVect[counter]*((double) scale);
}
*graph2 = new TGraph(nrows, tVect, xVectPrime);
graph2->SetLineColor(kRed);
graph2->SetLineWidth(1);
graph2->SetMarkerColor(kRed);
graph2->SetMarkerStyle(22);
//graph2->GetHistogram()->Scale(scale);
graph2->Draw("LP");




//sets space b/w axis and label
graph->GetXaxis()->SetLabelOffset(0.015);

//label text size
graph->GetXaxis()->SetLabelSize(0.025);

graph->GetXaxis()->SetTimeFormat("#splitline{%d\/%b\/%Y}{ %H:%M:%S}");

//sets divisions on x axis.. too many = labels overlap
graph->GetXaxis()->SetNdivisions(5);

graph->GetXaxis()->SetTimeDisplay(1);

graph->GetXaxis()->SetTitle("Time");    
graph->GetXaxis()->CenterTitle();
graph->GetYaxis()->SetTitle("Voltage");
graph->GetYaxis()->CenterTitle();
 	


TGaxis *axis = new TGaxis(gPad->GetUxmax(), gPad->GetUymin(), gPad->GetUxmax(),
gPad->GetUymax(), 0, rightmax, 510, "+L");
axis->SetLineColor(kRed);
axis->SetLabelColor(kRed);
axis->SetTitle("Current");
axis->SetTextColor(kRed);
axis->CenterTitle();
axis->Draw();



gPad->Modified();



}