globedata.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

// **********************************************************************
// 
// <copyright>
// 
//  BBN Technologies
//  10 Moulton Street
//  Cambridge, MA 02138
//  [phone]
// 
//  Copyright (C) BBNT Solutions LLC. All rights reserved.
// 
// </copyright>
// **********************************************************************
// 
// $Source:
// /cvs/distapps/openmap/src/openmap/com/bbn/openmap/layer/plotLayer/GLOBEData.java,v
// $
// $RCSfile: GLOBEData.java,v $
// $Revision: 1.3.2.1 $
// $Date: 2004/10/14 18:27:12 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.layer.plotLayer;

import java.io.*;

public abstract class GLOBEData {

    public GLOBEData() {}

    public void loadData(InputStream instream) throws IOException {
        readDataFromStream(instream);
    }

    protected abstract void parseDataFromStream(String line);

    public void readDataFromStream(InputStream istream) throws IOException {

        int lines_read = 0;
        BufferedReader buffstream = new BufferedReader(new InputStreamReader(istream), 65536);

        while (true) {
            String line = buffstream.readLine();
            if (line == null)
                break;
            line = line.trim();
            // ignore comments
            if (line.equals("") || line.startsWith("#")) {
                continue;
            }
            parseDataFromStream(line);
            lines_read++;
            //          if (lines_read % 1000 == 0) {
            //              System.out.println("Read " + lines_read + " lines");
            //          }
        }
        //      System.out.println("Read " + lines_read + " total lines");
    }

    /*
     * public static void main (String argv[]) { try {
     * System.out.println("Getting URL: " + argv[0]); GLOBEData
     * datafile = new GLOBEData(argv[0]); datafile.loadData(); } catch
     * (IOException e) { System.err.println(e); } }
     */

}