diff options
Diffstat (limited to 'ao-tools/altosui/AltosSiteMapTile.java')
| -rw-r--r-- | ao-tools/altosui/AltosSiteMapTile.java | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/ao-tools/altosui/AltosSiteMapTile.java b/ao-tools/altosui/AltosSiteMapTile.java new file mode 100644 index 00000000..c14fb93f --- /dev/null +++ b/ao-tools/altosui/AltosSiteMapTile.java @@ -0,0 +1,205 @@ +/* + * 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 { + 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 lat, double lng) { + Point2D.Double north_step; + double step_nm = 0.5; + for (zoom = 3; zoom < 22; zoom++) { + coord_pt = pt(lat, lng, new Point2D.Double(0,0), zoom); + north_step = pt(lat+step_nm/60.0, lng, + new Point2D.Double(0,0), zoom); + if (coord_pt.y - north_step.y > px_size/2) + break; + } + coord_pt.x = -px_size * Math.floor(coord_pt.x/px_size + off_x); + coord_pt.y = -px_size * Math.floor(coord_pt.y/px_size + off_y); + + scale_x = 256/360.0 * Math.pow(2, zoom); + scale_y = 256/(2.0*Math.PI) * Math.pow(2, zoom); + + 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%.6f,%c%.6f-%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, scale_x, scale_y); + } + + private static Point2D.Double pt(double lat, double lng, + Point2D.Double centre, int zoom) + { + double scale_x = 256/360.0 * Math.pow(2, zoom); + double scale_y = 256/(2.0*Math.PI) * Math.pow(2, zoom); + return pt(lat, lng, centre, scale_x, scale_y); + } + + private static Point2D.Double pt(double lat, double lng, + Point2D.Double centre, double scale_x, double scale_y) + { + 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; + } +} + |