ACCIS/Landsat.java at main · SIOSlab/ACCIS · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
import gov.nasa.worldwind.geom.Sector;
import gov.nasa.worldwind.geom.Angle;

import gov.nasa.worldwind.layers.Earth.LandsatI3WMSLayer;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.SocketTimeoutException;

import javax.imageio.ImageIO;

class Landsat {

    public static void main(String[] args) {

        LandsatI3WMSLayer layer = new LandsatI3WMSLayer();

        final int pix_deg = 1000;

        final int widp = pix_deg;
        final int lenp = pix_deg;

        for (int clat = 0; clat < 180; clat++) {

            for (int lon = 0; lon < 360; lon++) {

                System.out.printf("clat = %03d; lon = %03d\n", clat, lon);

                get_image(clat, lon, widp, lenp, layer);

                System.out.printf("\tAcquired\n");

            }

        }

    }

    private static void get_image(int clat, int lon, int widp, int lenp,
            LandsatI3WMSLayer layer) {

        try {

            int flag = 1;

            while (flag != 0) {

                try {

                    int lat = 90 - clat;

                    // Compute sector
                    Sector sector = new Sector(
                                       Angle.fromDegrees(lat - 1),
                                       Angle.fromDegrees(lat),
                                       Angle.fromDegrees(lon),
                                       Angle.fromDegrees(lon + 1));

                    // Aspect ratio (pixel?)
                    double ar = 1;

                    // Timeout (1 minute)
                    int timeout = 60000;

                    // Image type & filename
                    String type = "image/png";
                    String filename = String.format(
                            "mosaic/tile_%03d_%03d.png", clat, lon);

                    // Acquire image
                    BufferedImage img = layer.composeImageForSector(sector,
                            widp, lenp, ar, -1, type, true, null, timeout);

                    // Save image
                    File outputfile = new File(filename);
                    ImageIO.write(img, "png", outputfile);

                    // Success
                    flag = 0;

                } catch (SocketTimeoutException ste) {

                    System.out.println("\tSocket timed out -- Trying again");

                }

            }

        } catch (Exception e) {

            e.printStackTrace(System.out);

        }

    }

}