+/*
+ * Copyright © 2010 Anthony Towns <aj@erisian.com.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package altosui;
+
+import java.awt.*;
+import java.awt.image.*;
+import java.awt.event.*;
+import javax.swing.*;
+import javax.imageio.ImageIO;
+import javax.swing.table.*;
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.util.prefs.*;
+import java.lang.Math;
+import java.awt.geom.Point2D;
+import java.awt.geom.Line2D;
+
+public class AltosSiteMapTile extends JLabel {
+ double lat, lng;
+ int zoom;
+ double scale_x, scale_y;
+ Point2D.Double coord_pt;
+ Point2D.Double last_pt;
+
+ Graphics2D g2d;
+
+ int off_x;
+ int off_y;
+
+ int px_size = 512;
+
+ private boolean setLocation(double new_lat, double new_lng) {
+ int new_zoom = 16;
+ lat = new_lat;
+ lng = new_lng;
+ zoom = new_zoom;
+ scale_x = 256/360.0 * Math.pow(2, zoom);
+ scale_y = 256/(2.0*Math.PI) * Math.pow(2, zoom);
+ coord_pt = pt(lat, lng, new Point2D.Double(0,0));
+ coord_pt.x = px_size/2-coord_pt.x - off_x * px_size;
+ coord_pt.y = px_size/2-coord_pt.y - off_y * px_size;
+ last_pt = null;
+
+ Point2D.Double map_latlng;
+ map_latlng = latlng(new Point2D.Double(px_size/2, px_size/2));
+
+ BufferedImage myPicture;
+ File pngfile = new File(AltosPreferences.logdir(),
+ FileCoord(map_latlng, zoom));
+ try {
+ myPicture = ImageIO.read(pngfile);
+ System.out.printf("# Found file %s\n", pngfile);
+ } catch (Exception e) {
+ // throw new RuntimeException(e);
+ System.out.printf("# Failed to find file %s\n", pngfile);
+ System.out.printf(" wget -O '%s' 'http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&sensor=false&maptype=hybrid&format=png32'\n", pngfile, map_latlng.x, map_latlng.y, zoom, px_size, px_size);
+ myPicture = new BufferedImage(px_size, px_size,
+ BufferedImage.TYPE_INT_RGB);
+ }
+ setIcon(new ImageIcon( myPicture ));
+ g2d = myPicture.createGraphics();
+ return true;
+ }
+
+ private static double limit(double v, double lo, double hi) {
+ if (v < lo)
+ return lo;
+ if (hi < v)
+ return hi;
+ return v;
+ }
+
+ private static String FileCoord(Point2D.Double latlng, int zoom) {
+ double lat, lng;
+ lat = latlng.x;
+ lng = latlng.y;
+ return FileCoord(lat, lng, zoom);
+ }
+ private static String FileCoord(double lat, double lng, int zoom) {
+ char chlat = lat < 0 ? 'S' : 'N';
+ char chlng = lng < 0 ? 'E' : 'W';
+ if (lat < 0) lat = -lat;
+ if (lng < 0) lng = -lng;
+ return String.format("map-%c%.3f,%c%.3f-%d.png",
+ chlat, lat, chlng, lng, zoom);
+ }
+
+
+ // based on google js
+ // http://maps.gstatic.com/intl/en_us/mapfiles/api-3/2/10/main.js
+ // search for fromLatLngToPoint and fromPointToLatLng
+ private Point2D.Double pt(double lat, double lng) {
+ return pt(lat, lng, coord_pt);
+ }
+
+ private Point2D.Double pt(double lat, double lng, Point2D.Double centre) {
+ Point2D.Double res = new Point2D.Double();
+ double e;
+
+ res.x = centre.x + lng*scale_x;
+ e = limit(Math.sin(Math.toRadians(lat)),-(1-1.0E-15),1-1.0E-15);
+ res.y = centre.y + 0.5*Math.log((1+e)/(1-e))*-scale_y;
+ return res;
+ }
+
+ private Point2D.Double latlng(Point2D.Double pt) {
+ return latlng(pt, coord_pt);
+ }
+ private Point2D.Double latlng(Point2D.Double pt, Point2D.Double centre) {
+ double lat, lng;
+ double rads;
+
+ lng = (pt.x - centre.x)/scale_x;
+ rads = 2 * Math.atan(Math.exp((pt.y-centre.y)/-scale_y));
+ lat = Math.toDegrees(rads - Math.PI/2);
+
+ return new Point2D.Double(lat,lng);
+ }
+
+ static Color stateColors[] = {
+ Color.WHITE, // startup
+ Color.WHITE, // idle
+ Color.WHITE, // pad
+ Color.RED, // boost
+ Color.PINK, // fast
+ Color.YELLOW, // coast
+ Color.CYAN, // drogue
+ Color.BLUE, // main
+ Color.BLACK // landed
+ };
+
+ boolean drawn_landed_circle = false;
+ boolean nomaps = false;
+ public void show(AltosState state, int crc_errors) {
+ if (nomaps)
+ return;
+ if (!state.gps_ready && state.pad_lat == 0 && state.pad_lon == 0)
+ return;
+ double plat = (int)(state.pad_lat*200)/200.0;
+ double plon = (int)(state.pad_lon*200)/200.0;
+
+ if (last_pt == null) {
+ if (!setLocation(plat, plon)) {
+ nomaps = true;
+ return;
+ }
+ }
+
+ Point2D.Double pt = pt(state.gps.lat, state.gps.lon);
+ if (last_pt != null && pt != last_pt) {
+ if (0 <= state.state && state.state < stateColors.length) {
+ g2d.setColor(stateColors[state.state]);
+ }
+ g2d.draw(new Line2D.Double(last_pt, pt));
+ }
+
+ if (state.state == 8 && !drawn_landed_circle) {
+ drawn_landed_circle = true;
+ g2d.setColor(Color.RED);
+ g2d.drawOval((int)pt.x-5, (int)pt.y-5, 10, 10);
+ g2d.drawOval((int)pt.x-20, (int)pt.y-20, 40, 40);
+ g2d.drawOval((int)pt.x-35, (int)pt.y-35, 70, 70);
+ }
+
+ last_pt = pt;
+ repaint();
+ }
+
+ public AltosSiteMapTile(int x_tile_offset, int y_tile_offset) {
+ off_x = x_tile_offset;
+ off_y = y_tile_offset;
+ }
+}
+
projects / fw / altos / commitdiff