Rev 1565 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 1563 | - | 1 | package dongfang.mkt.ui.offscreendisplay; |
| 2 | |||
| 3 | /* |
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| 4 | * u/l: geotagged geo:lat=47.327450 geo:lon=8.521657 |
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| 5 | * l/r: geotagged geo:lat=47.321749 geo:lon=8.534403 |
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| 6 | * house: geotagged geo:lat=47.324614 geo:lon=8.528202 |
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| 7 | */ |
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| 8 | |||
| 9 | import java.awt.Color; |
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| 10 | import java.awt.Graphics; |
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| 11 | import java.awt.Image; |
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| 12 | import java.awt.Toolkit; |
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| 13 | |||
| 14 | import javax.swing.JFrame; |
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| 15 | import javax.swing.JPanel; |
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| 16 | |||
| 17 | import dongfang.mkt.datatype.GPSPosition; |
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| 18 | |||
| 19 | public class MapImageView extends JPanel { |
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| 20 | private Image mapImage; |
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| 21 | private Image copterImage; |
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| 22 | |||
| 23 | private static final int MAPWIDTH = 600; |
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| 24 | private static final int MAPHEIGHT = 400; |
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| 25 | |||
| 26 | // It is assumed the map is north/south oriented! |
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| 27 | private GPSPosition upperLeft; |
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| 28 | private GPSPosition lowerRight; |
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| 29 | |||
| 30 | private GPSPosition hightlightPosition; |
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| 31 | |||
| 32 | public MapImageView(GPSPosition upperLeft, GPSPosition lowerRight, String imageFileName) { |
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| 33 | setSize(MAPWIDTH, MAPHEIGHT); |
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| 34 | this.upperLeft = upperLeft; |
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| 35 | this.lowerRight = lowerRight; |
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| 36 | mapImage = Toolkit.getDefaultToolkit().getImage(imageFileName); |
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| 37 | } |
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| 38 | |||
| 39 | private double relativeX(GPSPosition pos) { |
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| 40 | double lon = pos.getLongitude(); |
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| 41 | // The sign should be OK here (positive) both east and west. |
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| 42 | double span = lowerRight.getLongitude() - upperLeft.getLongitude(); |
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| 43 | double offset = lon - upperLeft.getLongitude(); |
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| 44 | return offset / span; |
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| 45 | } |
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| 46 | |||
| 47 | private double relativeY(GPSPosition pos) { |
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| 48 | double lat = pos.getLatitude(); |
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| 49 | // The sign should be OK here (positive) both east and west. |
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| 50 | double span = lowerRight.getLatitude() - upperLeft.getLatitude(); |
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| 51 | double offset = lat - upperLeft.getLatitude(); |
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| 52 | return offset / span; |
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| 53 | } |
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| 54 | |||
| 55 | public void paintComponent(Graphics g) { |
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| 56 | // Draw our Image object. |
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| 57 | g.drawImage(mapImage, 0, 0, MAPWIDTH, MAPHEIGHT, this); // at location |
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| 58 | g.setColor(Color.red); |
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| 59 | int x = (int)(MAPWIDTH * relativeX(hightlightPosition) + 0.5); |
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| 60 | int y = (int)(MAPHEIGHT * relativeY(hightlightPosition) + 0.5); |
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| 61 | g.drawArc(x, y, 20, 20, 0, 360); |
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| 62 | } |
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| 63 | |||
| 64 | public static void main(String[] args) { |
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| 65 | GPSPosition upperLeft = new GPSPosition(); |
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| 66 | GPSPosition lowerRight = new GPSPosition(); |
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| 67 | GPSPosition highlight = new GPSPosition(); |
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| 68 | |||
| 69 | upperLeft.setLatitude((int)(47.327450 * 1E7)); |
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| 70 | upperLeft.setLongitude((int)(8.521657 * 1E7)); |
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| 71 | |||
| 72 | // * l/r: geotagged geo:lat=47.321749 geo:lon=8.534403 |
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| 73 | lowerRight.setLatitude((int)(47.321749 * 1E7)); |
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| 74 | lowerRight.setLongitude((int)(8.534403 * 1E7)); |
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| 75 | |||
| 76 | // geotagged geo:lat=47.324614 geo:lon=8.528202 |
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| 77 | highlight.setLatitude((int)(47.324714 * 1E7)); |
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| 78 | highlight.setLongitude((int)(8.528102 * 1E7)); |
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| 79 | |||
| 80 | MapImageView v = new MapImageView(upperLeft, lowerRight, "flugplatz_small.png"); |
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| 81 | v.hightlightPosition = highlight; |
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| 82 | |||
| 83 | JFrame f = new JFrame(); |
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| 84 | f.getContentPane().add(v); |
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| 85 | f.setSize(v.getSize()); |
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| 86 | f.setVisible(true); |
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| 87 | } |
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| 88 | } |