| 0,0 → 1,88 |
|---|
| package dongfang.mkt.ui.offscreendisplay; |
| |
| /* |
| * u/l: geotagged geo:lat=47.327450 geo:lon=8.521657 |
| * l/r: geotagged geo:lat=47.321749 geo:lon=8.534403 |
| * house: geotagged geo:lat=47.324614 geo:lon=8.528202 |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Graphics; |
| import java.awt.Image; |
| import java.awt.Toolkit; |
| |
| import javax.swing.JFrame; |
| import javax.swing.JPanel; |
| |
| import dongfang.mkt.datatype.GPSPosition; |
| |
| public class MapImageView extends JPanel { |
| private Image mapImage; |
| private Image copterImage; |
| |
| private static final int MAPWIDTH = 600; |
| private static final int MAPHEIGHT = 400; |
| |
| // It is assumed the map is north/south oriented! |
| private GPSPosition upperLeft; |
| private GPSPosition lowerRight; |
| |
| private GPSPosition hightlightPosition; |
| |
| public MapImageView(GPSPosition upperLeft, GPSPosition lowerRight, String imageFileName) { |
| setSize(MAPWIDTH, MAPHEIGHT); |
| this.upperLeft = upperLeft; |
| this.lowerRight = lowerRight; |
| mapImage = Toolkit.getDefaultToolkit().getImage(imageFileName); |
| } |
| |
| private double relativeX(GPSPosition pos) { |
| double lon = pos.getLongitude(); |
| // The sign should be OK here (positive) both east and west. |
| double span = lowerRight.getLongitude() - upperLeft.getLongitude(); |
| double offset = lon - upperLeft.getLongitude(); |
| return offset / span; |
| } |
| |
| private double relativeY(GPSPosition pos) { |
| double lat = pos.getLatitude(); |
| // The sign should be OK here (positive) both east and west. |
| double span = lowerRight.getLatitude() - upperLeft.getLatitude(); |
| double offset = lat - upperLeft.getLatitude(); |
| return offset / span; |
| } |
| |
| public void paintComponent(Graphics g) { |
| // Draw our Image object. |
| g.drawImage(mapImage, 0, 0, MAPWIDTH, MAPHEIGHT, this); // at location |
| g.setColor(Color.red); |
| int x = (int)(MAPWIDTH * relativeX(hightlightPosition) + 0.5); |
| int y = (int)(MAPHEIGHT * relativeY(hightlightPosition) + 0.5); |
| g.drawArc(x, y, 20, 20, 0, 360); |
| } |
| |
| public static void main(String[] args) { |
| GPSPosition upperLeft = new GPSPosition(); |
| GPSPosition lowerRight = new GPSPosition(); |
| GPSPosition highlight = new GPSPosition(); |
| |
| upperLeft.setLatitude((int)(47.327450 * 1E7)); |
| upperLeft.setLongitude((int)(8.521657 * 1E7)); |
| |
| // * l/r: geotagged geo:lat=47.321749 geo:lon=8.534403 |
| lowerRight.setLatitude((int)(47.321749 * 1E7)); |
| lowerRight.setLongitude((int)(8.534403 * 1E7)); |
| |
| // geotagged geo:lat=47.324614 geo:lon=8.528202 |
| highlight.setLatitude((int)(47.324714 * 1E7)); |
| highlight.setLongitude((int)(8.528102 * 1E7)); |
| |
| MapImageView v = new MapImageView(upperLeft, lowerRight, "flugplatz_small.png"); |
| v.hightlightPosition = highlight; |
| |
| JFrame f = new JFrame(); |
| f.getContentPane().add(v); |
| f.setSize(v.getSize()); |
| f.setVisible(true); |
| } |
| } |