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Showing 2D gaussians as histograms in directories
Source code name: "groot_gauss.java"
Programming language: Java
Topic: Histograms/1D
DMelt Version 1.9. Last modified: 07/16/1971. License: Free
https://datamelt.org/code/cache/groot_gauss_5796.java
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import java.util.List;
import java.util.Set;
import org.jlab.groot.data.H1F;
import org.jlab.groot.data.TDirectory;
import org.jlab.groot.group.DataGroup;
import org.jlab.groot.math.FunctionFactory;
import org.jlab.groot.ui.TCanvas;
/**
* @author gavalian
*/
public class groot_gauss {
public static void main(String[] args){
TDirectory dir = new TDirectory();
H1F h1 = FunctionFactory.randomGausian( 80, 0.1, 5.0, 8000, 2.2, 0.5);
H1F h2 = FunctionFactory.randomGausian(120, 0.1, 5.0, 20000, 3.5, 0.4);
H1F h3 = FunctionFactory.randomGausian(160, 0.1, 5.0, 14000, 2.6, 0.3);
H1F h4 = FunctionFactory.randomGausian( 80, 0.1, 5.0, 8000, 2.2, 0.5);
H1F h5 = FunctionFactory.randomGausian(160, 0.1, 5.0, 14000, 2.6, 0.3);
h1.setName("h1");
h2.setName("h2");
h3.setName("h3");
h4.setName("h4");
h5.setName("h5");
h1.setFillColor(33);
h2.setFillColor(34);
h3.setFillColor(36);
h4.setFillColor(35);
h5.setFillColor(38);
dir.mkdir("/calibration/FTOF");
dir.mkdir("/calibration/ECAL");
dir.cd("/calibration/FTOF");
dir.addDataSet(h1,h2,h3);
dir.cd("/calibration/ECAL");
dir.addDataSet(h4,h5);
TCanvas c1 = new TCanvas("c1",800,500);
c1.draw(h1);
dir.addGroupDescriptor("FTOFCALIB", 2, 2);
dir.addGroup("FTOFCALIB", 0, "/calibration/FTOF/h1");
dir.addGroup("FTOFCALIB", 0, "/calibration/FTOF/h2");
dir.addGroup("FTOFCALIB", 1, "/calibration/FTOF/h3");
dir.addGroup("FTOFCALIB", 2, "/calibration/ECAL/h4");
dir.addGroup("FTOFCALIB", 3, "/calibration/ECAL/h5");
dir.addGroup("FTOFCALIB", 3, "/calibration/FTOF/h2");
dir.addGroup("FTOFCALIB", 3, "/calibration/FTOF/h1");
List dirObjects = dir.getCompositeObjectList(dir);
Set nodes = dir.getChildrenList("calibration", dirObjects, 2);
System.out.println(" SIZE = " + nodes.size());
for(String obj : nodes){
System.out.println(" --- " + obj);
}
DataGroup group = dir.getDataGroup("FTOFCALIB");
c1.getCanvas().draw(group);
dir.writeFile("dirDemo.hipo");
//dir.addDataSet(h2);
//dir.addDataSet(h3);
}
}