topt.FXMLDocumentController.java Source code

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Here is the source code for topt.FXMLDocumentController.java

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/*
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package topt;

import java.net.URL;
import java.util.ResourceBundle;

import org.apache.commons.math3.distribution.NormalDistribution;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Alert;
import javafx.scene.control.ButtonType;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.TableView;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;

/**
 *
 * @author Bartolio
 */
public class FXMLDocumentController implements Initializable {

    @FXML
    private TextField elementsNr;
    @FXML
    private TextField standardDev;
    @FXML
    private TextField expectedValue;
    @FXML
    private TextField tfError;
    @FXML
    private TextArea result;
    @FXML
    private Label elementNrLabel;

    @FXML
    private Label pstwo;

    @FXML
    private ComboBox<RowData> elementsCBox;
    @FXML
    private TableView<RowData> addedElementList;
    ObservableList<RowData> data = FXCollections.observableArrayList();

    @FXML
    private void handleComboBoxOnChanged(ActionEvent event) {
        System.out.println("Combobox");
        elementsNr.setText(Integer.toString(elementsCBox.getValue().getNrOfElements()));
        if (elementsCBox.getValue().getName().startsWith("wiat")) {
            elementNrLabel.setText("Dugo wiatowodu [km]");
        } else {
            elementNrLabel.setText("Ilo elementw ");
        }
        standardDev.setText(Double.toString(elementsCBox.getValue().getStandardDev()));
        expectedValue.setText(Double.toString(elementsCBox.getValue().getExpectedValue()));
    }

    @FXML
    private void handleButtonRemoveLastElement(ActionEvent event) {
        data.remove(data.size() - 1);
        addedElementList.refresh();
    }

    @FXML
    private void handleButtonClearElementList(ActionEvent event) {
        data.clear();
        addedElementList.setItems(data);
    }

    @FXML
    private void handleButtonAddElement(ActionEvent event) {
        try {
            if (elementsCBox.getValue() != null && !elementsCBox.getValue().toString().isEmpty()) {
                int numberOfEl = Integer.parseInt(elementsNr.getText());
                double standardDevDouble = Double.parseDouble(standardDev.getText());
                double expectedValueDouble = Double.parseDouble(expectedValue.getText());

                data.add(data.size(), new RowData(elementsCBox.getValue().toString(), numberOfEl, standardDevDouble,
                        expectedValueDouble));

                addedElementList.setItems(data);
            } else {
                Alert alert = new Alert(Alert.AlertType.ERROR, "Wybierz element", ButtonType.YES);
                alert.showAndWait();
            }
        } catch (NumberFormatException nfe) {
            Alert alert = new Alert(Alert.AlertType.ERROR, "Niepoprawny format danych (liczb)", ButtonType.YES);
            alert.showAndWait();
        }
    }

    @FXML
    private void handleButtonCompute(ActionEvent event) {
        System.out.println("Compute!");
        double sum = 0;
        double sumInSquare = 0;
        double expectedError = 0;
        for (RowData element : addedElementList.getItems()) {
            sum += element.getExpectedValue() * element.getNrOfElements();
            sumInSquare += Math.pow(element.getStandardDev(), 2) * element.getNrOfElements();
        }

        if (!tfError.getText().isEmpty())
            expectedError = Double.parseDouble(tfError.getText()) / 100;
        else {
            Alert alert = new Alert(Alert.AlertType.ERROR, "Prosz poda warto dopuszczalnegobdu [%]",
                    ButtonType.YES);
            alert.showAndWait();
            return;
        }

        double nrOfStDev = computeNrStDev(sum, Math.sqrt(sumInSquare), expectedError);
        double attenuationMax = sum + nrOfStDev * Math.sqrt(sumInSquare);
        double attenuationMin = sum - nrOfStDev * Math.sqrt(sumInSquare);
        attenuationMax = roundResult(attenuationMax);
        attenuationMin = roundResult(attenuationMin);

        result.setText("Zakres tumienia toru optycznego mieci si w zakresie od: " + attenuationMin
                + "[dB] do " + attenuationMax + "[dB]");

    }

    public double computeNrStDev(double mean, double stDev, double expectedError) {
        System.out.println(mean + " " + stDev);

        NormalDistribution normalDistribution = new NormalDistribution(mean, stDev);
        double nrOfStDev = (mean - normalDistribution.inverseCumulativeProbability(expectedError / 2)) / stDev;
        System.out.println(normalDistribution.inverseCumulativeProbability(expectedError / 2));
        System.out.println(nrOfStDev);
        nrOfStDev = roundResult(nrOfStDev);
        this.pstwo.setText("Prawdopodobientwo bdu wynosi " + Double.toString(nrOfStDev) + "%");
        System.out.println("Liczba odchylen" + Double.toString(nrOfStDev));
        //        this.nrOfStDevLabel.setText("Liczba ochyle standardowych przy danym bdzie : " + Double.toString(nrOfStDev));
        return nrOfStDev;
    }

    private double roundResult(double result) {
        //zaokraglanie
        result *= 100; //mnozenie razy 100

        result = Math.round(result);
        result /= 100; //dzielenie przez 100
        return result;
    }

    @Override
    public void initialize(URL url, ResourceBundle rb) {
        // TODO
    }

}