X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=ao-tools%2Faltosui%2FAltosSiteMap.java;fp=ao-tools%2Faltosui%2FAltosSiteMap.java;h=0000000000000000000000000000000000000000;hb=28d621c5885953afe3b7435e582b80b75314506e;hp=8097060508989859c30ba1ee23efdfc76f549bb0;hpb=6d0098e497ee2d9a1d1113bf3fb907dd48bdcf80;p=fw%2Faltos diff --git a/ao-tools/altosui/AltosSiteMap.java b/ao-tools/altosui/AltosSiteMap.java deleted file mode 100644 index 80970605..00000000 --- a/ao-tools/altosui/AltosSiteMap.java +++ /dev/null @@ -1,388 +0,0 @@ -/* - * Copyright © 2010 Anthony Towns - * - * 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.swing.event.MouseInputAdapter; -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 AltosSiteMap extends JScrollPane implements AltosFlightDisplay { - // preferred vertical step in a tile in naut. miles - // will actually choose a step size between x and 2x, where this - // is 1.5x - static final double tile_size_nmi = 0.75; - - static final int px_size = 512; - - static final int MAX_TILE_DELTA = 100; - - private static Point2D.Double translatePoint(Point2D.Double p, - Point2D.Double d) - { - return new Point2D.Double(p.x + d.x, p.y + d.y); - } - - static class LatLng { - public double lat, lng; - public LatLng(double lat, double lng) { - this.lat = lat; - this.lng = lng; - } - } - - // based on google js - // http://maps.gstatic.com/intl/en_us/mapfiles/api-3/2/10/main.js - // search for fromLatLngToPoint and fromPointToLatLng - private static Point2D.Double pt(LatLng latlng, 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(latlng, scale_x, scale_y); - } - - private static Point2D.Double pt(LatLng latlng, - double scale_x, double scale_y) - { - Point2D.Double res = new Point2D.Double(); - double e; - - res.x = latlng.lng * scale_x; - - e = Math.sin(Math.toRadians(latlng.lat)); - e = Math.max(e,-(1-1.0E-15)); - e = Math.min(e, 1-1.0E-15 ); - - res.y = 0.5*Math.log((1+e)/(1-e))*-scale_y; - return res; - } - - static private LatLng latlng(Point2D.Double pt, - double scale_x, double scale_y) - { - double lat, lng; - double rads; - - lng = pt.x/scale_x; - rads = 2 * Math.atan(Math.exp(-pt.y/scale_y)); - lat = Math.toDegrees(rads - Math.PI/2); - - return new LatLng(lat,lng); - } - - int zoom; - double scale_x, scale_y; - - private Point2D.Double pt(double lat, double lng) { - return pt(new LatLng(lat, lng), scale_x, scale_y); - } - - private LatLng latlng(double x, double y) { - return latlng(new Point2D.Double(x,y), scale_x, scale_y); - } - private LatLng latlng(Point2D.Double pt) { - return latlng(pt, scale_x, scale_y); - } - - HashMap mapTiles = new HashMap(); - Point2D.Double centre; - - private Point2D.Double tileCoordOffset(Point p) { - return new Point2D.Double(centre.x - p.x*px_size, - centre.y - p.y * px_size); - } - - private Point tileOffset(Point2D.Double p) { - return new Point((int)Math.floor((centre.x+p.x)/px_size), - (int)Math.floor((centre.y+p.y)/px_size)); - } - - private Point2D.Double getBaseLocation(double lat, double lng) { - Point2D.Double locn, north_step; - - zoom = 2; - // stupid loop structure to please Java's control flow analysis - do { - zoom++; - scale_x = 256/360.0 * Math.pow(2, zoom); - scale_y = 256/(2.0*Math.PI) * Math.pow(2, zoom); - locn = pt(lat, lng); - north_step = pt(lat+tile_size_nmi*4/3/60.0, lng); - if (locn.y - north_step.y > px_size) - break; - } while (zoom < 22); - locn.x = -px_size * Math.floor(locn.x/px_size); - locn.y = -px_size * Math.floor(locn.y/px_size); - return locn; - } - - public void reset() { - // nothing - } - - private void bgLoadMap(final AltosSiteMapTile tile, - final File pngfile, final String pngurl) - { - //System.out.printf("Loading/fetching map %s\n", pngfile); - Thread thread = new Thread() { - public void run() { - ImageIcon res; - res = AltosSiteMapCache.fetchAndLoadMap(pngfile, pngurl); - if (res != null) { - tile.loadMap(res); - } else { - System.out.printf("# Failed to fetch file %s\n", pngfile); - System.out.printf(" wget -O '%s' ''\n", pngfile, pngurl); - } - } - }; - thread.start(); - } - - public static void prefetchMaps(double lat, double lng, int w, int h) { - AltosPreferences.init(null); - - AltosSiteMap asm = new AltosSiteMap(true); - asm.centre = asm.getBaseLocation(lat, lng); - - Point2D.Double p = new Point2D.Double(); - Point2D.Double p2; - int dx = -w/2, dy = -h/2; - for (int y = dy; y < h+dy; y++) { - for (int x = dx; x < w+dx; x++) { - LatLng map_latlng = asm.latlng( - -asm.centre.x + x*px_size + px_size/2, - -asm.centre.y + y*px_size + px_size/2); - File pngfile = asm.MapFile(map_latlng.lat, map_latlng.lng); - String pngurl = asm.MapURL(map_latlng.lat, map_latlng.lng); - if (pngfile.exists()) { - System.out.printf("Already have %s\n", pngfile); - } else if (AltosSiteMapCache.fetchMap(pngfile, pngurl)) { - System.out.printf("Fetched map %s\n", pngfile); - } else { - System.out.printf("# Failed to fetch file %s\n", pngfile); - System.out.printf(" wget -O '%s' ''\n", pngfile, pngurl); - } - } - } - } - - private void initMap(AltosSiteMapTile tile, Point offset) { - Point2D.Double coord = tileCoordOffset(offset); - - LatLng map_latlng = latlng(px_size/2-coord.x, px_size/2-coord.y); - - File pngfile = MapFile(map_latlng.lat, map_latlng.lng); - String pngurl = MapURL(map_latlng.lat, map_latlng.lng); - bgLoadMap(tile, pngfile, pngurl); - } - - private void initMaps(double lat, double lng) { - centre = getBaseLocation(lat, lng); - - for (Point k : mapTiles.keySet()) { - initMap(mapTiles.get(k), k); - } - } - - private File MapFile(double lat, double lng) { - char chlat = lat < 0 ? 'S' : 'N'; - char chlng = lng < 0 ? 'E' : 'W'; - if (lat < 0) lat = -lat; - if (lng < 0) lng = -lng; - return new File(AltosPreferences.logdir(), - String.format("map-%c%.6f,%c%.6f-%d.png", - chlat, lat, chlng, lng, zoom)); - } - - private String MapURL(double lat, double lng) { - return String.format("http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&sensor=false&maptype=hybrid&format=png32", lat, lng, zoom, px_size, px_size); - } - - boolean initialised = false; - Point2D.Double last_pt = null; - int last_state = -1; - public void show(final AltosState state, final int crc_errors) { - // if insufficient gps data, nothing to update - if (state.gps == null) - return; - if (state.pad_lat == 0 && state.pad_lon == 0) - return; - if (!state.gps.locked) { - if (state.gps.nsat < 4) - return; - } - - if (!initialised) { - initMaps(state.pad_lat, state.pad_lon); - initialised = true; - } - - final Point2D.Double pt = pt(state.gps.lat, state.gps.lon); - if (last_pt == pt && last_state == state.state) - return; - - if (last_pt == null) { - last_pt = pt; - } - boolean in_any = false; - for (Point offset : mapTiles.keySet()) { - AltosSiteMapTile tile = mapTiles.get(offset); - Point2D.Double ref, lref; - ref = translatePoint(pt, tileCoordOffset(offset)); - lref = translatePoint(last_pt, tileCoordOffset(offset)); - tile.show(state, crc_errors, lref, ref); - if (0 <= ref.x && ref.x < px_size) - if (0 <= ref.y && ref.y < px_size) - in_any = true; - } - - Point offset = tileOffset(pt); - if (!in_any) { - Point2D.Double ref, lref; - ref = translatePoint(pt, tileCoordOffset(offset)); - lref = translatePoint(last_pt, tileCoordOffset(offset)); - - AltosSiteMapTile tile = createTile(offset); - tile.show(state, crc_errors, lref, ref); - initMap(tile, offset); - finishTileLater(tile, offset); - } - - scrollRocketToVisible(pt); - - if (offset != tileOffset(last_pt)) { - ensureTilesAround(offset); - } - - last_pt = pt; - last_state = state.state; - } - - private AltosSiteMapTile createTile(Point offset) { - AltosSiteMapTile tile = new AltosSiteMapTile(px_size); - mapTiles.put(offset, tile); - return tile; - } - private void finishTileLater(final AltosSiteMapTile tile, - final Point offset) - { - SwingUtilities.invokeLater( new Runnable() { - public void run() { - addTileAt(tile, offset); - } - } ); - } - - private void ensureTilesAround(Point base_offset) { - for (int x = -1; x <= 1; x++) { - for (int y = -1; y <= 1; y++) { - Point offset = new Point(base_offset.x + x, base_offset.y + y); - if (mapTiles.containsKey(offset)) - continue; - AltosSiteMapTile tile = createTile(offset); - initMap(tile, offset); - finishTileLater(tile, offset); - } - } - } - - private Point topleft = new Point(0,0); - private void scrollRocketToVisible(Point2D.Double pt) { - Rectangle r = comp.getVisibleRect(); - Point2D.Double copt = translatePoint(pt, tileCoordOffset(topleft)); - int dx = (int)copt.x - r.width/2 - r.x; - int dy = (int)copt.y - r.height/2 - r.y; - if (Math.abs(dx) > r.width/4 || Math.abs(dy) > r.height/4) { - r.x += dx; - r.y += dy; - comp.scrollRectToVisible(r); - } - } - - private void addTileAt(AltosSiteMapTile tile, Point offset) { - if (Math.abs(offset.x) >= MAX_TILE_DELTA || - Math.abs(offset.y) >= MAX_TILE_DELTA) - { - System.out.printf("Rocket too far away from pad (tile %d,%d)\n", - offset.x, offset.y); - return; - } - - boolean review = false; - Rectangle r = comp.getVisibleRect(); - if (offset.x < topleft.x) { - r.x += (topleft.x - offset.x) * px_size; - topleft.x = offset.x; - review = true; - } - if (offset.y < topleft.y) { - r.y += (topleft.y - offset.y) * px_size; - topleft.y = offset.y; - review = true; - } - GridBagConstraints c = new GridBagConstraints(); - c.anchor = GridBagConstraints.CENTER; - c.fill = GridBagConstraints.BOTH; - // put some space between the map tiles, debugging only - // c.insets = new Insets(5, 5, 5, 5); - - c.gridx = offset.x + MAX_TILE_DELTA; - c.gridy = offset.y + MAX_TILE_DELTA; - layout.setConstraints(tile, c); - - comp.add(tile); - if (review) { - comp.scrollRectToVisible(r); - } - } - - private AltosSiteMap(boolean knowWhatYouAreDoing) { - if (!knowWhatYouAreDoing) { - throw new RuntimeException("Arggh."); - } - } - - JComponent comp = new JComponent() { }; - private GridBagLayout layout = new GridBagLayout(); - - public AltosSiteMap() { - GrabNDrag scroller = new GrabNDrag(comp); - - comp.setLayout(layout); - - for (int x = -1; x <= 1; x++) { - for (int y = -1; y <= 1; y++) { - Point offset = new Point(x, y); - AltosSiteMapTile t = createTile(offset); - addTileAt(t, offset); - } - } - setViewportView(comp); - setPreferredSize(new Dimension(500,200)); - } -}