Tutorial_CommandLineDescriberSonifier.java

package gov.nasa.ial.mde;
/* 
 * Copyright 2006, United States Government as represented by the Administrator
 * for the National Aeronautics and Space Administration. No copyright is
 * claimed in the United States under Title 17, U.S. Code. All Other Rights
 * Reserved. 
 */

import gov.nasa.ial.mde.describer.Describer;
import gov.nasa.ial.mde.properties.MdeSettings;
import gov.nasa.ial.mde.solver.Solver;
import gov.nasa.ial.mde.sound.Sounder;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Tutorial_CommandLineDescriberSonifier {

    public static void main(String[] args) {

        MdeSettings settings = new MdeSettings("MyMdeProps.prop");

        Solver solver = new Solver();
        Describer describer = new Describer(solver, settings);
        describer.setOutputFormat(Describer.TEXT_OUTPUT);

        try {
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader reader = new BufferedReader(isr);

            while (true) {
                System.out.println("\n\nEnter equation (or CTRL-C to exit): ");
                String equation = reader.readLine();
                solver.add(equation);
                solver.solve();

                if (solver.anyDescribable()) {
                    String description = describer.getDescriptions("visual");
                    System.out.println("Description: " + description);
                } else {
                    System.out.println("MDE could not generate a description for "
                                    + equation + ".");
                }

                // Does user want to sonify equation?
                if (solver.anySonifiable()) {
                    boolean sonflag = true;
                    while (sonflag) {
                        System.out.println("\n\nSonify " + equation
                                + "? (y/n): ");
                        String s = reader.readLine();

                        if ((s != null) && s.equals("y")) {
                            Sounder sounder = new Sounder(solver, settings);

                            System.out.println("Sonifying curve from x = " + solver.getLeft() +
                                                " to x = " + solver.getRight());
                            sounder.sweep(7.0);
                            sounder.close();
                        } else {
                            sonflag = false;
                        }
                    } // end while sonflag
                }
                solver.removeAll();

            } // end while true
        } catch (Exception e) {
            System.out.println(e);
        }
    } // end main

} // end class Tutorial_CommandLineDescriberSonifier