Example usage for java.awt.geom Line2D.Float Line2D.Float

Introduction

In this page you can find the example usage for java.awt.geom Line2D.Float Line2D.Float.

Prototype

public Float(float x1, float y1, float x2, float y2) 

Source Link

Document

Constructs and initializes a Line from the specified coordinates.

Usage

From source file:graticules2wld.Main.java

/**
 * Abstracts the source CSV file format, and exposes the data as two ArrayList<Graticule> for the rest of the program.
 * @param csvReader// ww  w. j  a  v a 2  s . c o m
 * @param lonGrats
 * @param latGrats
 * @throws Exception
 */
private static void readCSV(BufferedReader csvReader, ArrayList<Graticule> lonGrats,
        ArrayList<Graticule> latGrats) throws Exception {

    // chew the header line and check it is what we expect
    String line = csvReader.readLine();

    if (!line.equals("lonlat,dir,value,x1,y1,x2,y2"))
        System.exit(1);

    // read each line of the CSV file and build our internal data structures
    for (line = csvReader.readLine(); line != null; line = csvReader.readLine()) {
        String[] l = line.split(",");
        if (l.length != 7)
            throw new Exception(
                    "Source file has bad format. Each line should have 7 columns, but we found a line with "
                            + l.length + "columns.");

        LATLON latlon;
        if (l[0].equals("lon"))
            latlon = LATLON.LON;
        else if (l[0].equals("lat"))
            latlon = LATLON.LAT;
        else
            throw new Exception("Either 'lat' or 'lon' expected, found " + l[0]);

        DIR dir;
        if (l[1].equals("w"))
            dir = DIR.W;
        else if (l[1].equals("e"))
            dir = DIR.E;
        else if (l[1].equals("n"))
            dir = DIR.N;
        else if (l[1].equals("s"))
            dir = DIR.S;
        else if (l[1].equals("v"))
            dir = DIR.E;
        else if (l[1].equals("h"))
            dir = DIR.N;
        else
            throw new Exception("Either n,s,e,w,h,v expected, found " + l[1]);

        Graticule graticule = new Graticule(latlon, dir, Integer.parseInt(l[2]),
                new Line2D.Float(Float.parseFloat(l[3]), Float.parseFloat(l[4]), Float.parseFloat(l[5]),
                        Float.parseFloat(l[6])));

        if (latlon.equals(LATLON.LAT))
            latGrats.add(graticule);
        else
            lonGrats.add(graticule);
    }

}

---