X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ao-tools%2Faltosui%2FAltosSiteMap.java;h=d4a4cbf43dbaa66b7c0c69ca6da2be09bef08e5c;hp=72a65b1529721d57f389c01b70914bcfb73319a1;hb=84cd5d42d8b5659463544fe2a400758b56478609;hpb=2a7dc3ba36bac81640a9498e0d0caf1470b57c19 diff --git a/ao-tools/altosui/AltosSiteMap.java b/ao-tools/altosui/AltosSiteMap.java index 72a65b15..d4a4cbf4 100644 --- a/ao-tools/altosui/AltosSiteMap.java +++ b/ao-tools/altosui/AltosSiteMap.java @@ -33,11 +33,15 @@ import java.awt.geom.Point2D; import java.awt.geom.Line2D; public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { - // max vertical step in a tile in naut. miles - static final double tile_size_nmi = 2.0; + // 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) { @@ -104,8 +108,18 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { return latlng(pt, scale_x, scale_y); } - AltosSiteMapTile [] mapTiles = new AltosSiteMapTile[9]; - Point2D.Double [] tileOffset = new Point2D.Double[9]; + 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; @@ -117,7 +131,7 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { 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/60.0, 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); @@ -130,15 +144,16 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { // nothing } - private void bgLoadMap(final int i, + 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) { - mapTiles[i].loadMap(res); + tile.loadMap(res); } else { System.out.printf("# Failed to fetch file %s\n", pngfile); System.out.printf(" wget -O '%s' ''\n", pngfile, pngurl); @@ -152,15 +167,16 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { AltosPreferences.init(null); AltosSiteMap asm = new AltosSiteMap(true); - Point2D.Double c = asm.getBaseLocation(lat, lng); + 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( - -c.x + x*px_size + px_size/2, - -c.y + y*px_size + px_size/2); + -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()) { @@ -175,22 +191,21 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { } } - private void initMaps(double lat, double lng) { - Point2D.Double c = getBaseLocation(lat, lng); - Point2D.Double p = new Point2D.Double(); + private void initMap(AltosSiteMapTile tile, Point offset) { + Point2D.Double coord = tileCoordOffset(offset); - for (int i = 0; i < 9; i++) { - int x = i%3 - 1, y = i/3 - 1; + LatLng map_latlng = latlng(px_size/2-coord.x, px_size/2-coord.y); - tileOffset[i] = new Point2D.Double( - c.x - x*px_size, p.y = c.y - y*px_size); - LatLng map_latlng = latlng( - -tileOffset[i].x+px_size/2, - -tileOffset[i].y+px_size/2); + 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); - File pngfile = MapFile(map_latlng.lat, map_latlng.lng); - String pngurl = MapURL(map_latlng.lat, map_latlng.lng); - bgLoadMap(i, pngfile, pngurl); + for (Point k : mapTiles.keySet()) { + initMap(mapTiles.get(k), k); } } @@ -209,61 +224,168 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { } boolean initialised = false; - public void show(AltosState state, int crc_errors) { + 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.locked) { - if (state.pad_lat == 0 && state.pad_lon == 0) - return; - if (state.gps.nsat < 4) + if (state.gps == null) + return; + if (!state.gps.locked && state.gps.nsat < 4) + return; + + if (!initialised) { + if (state.pad_lat != 0 || state.pad_lon != 0) { + initMaps(state.pad_lat, state.pad_lon); + initialised = true; + } else if (state.gps.lat != 0 || state.gps.lon != 0) { + initMaps(state.gps.lat, state.gps.lon); + initialised = true; + } else { 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; } - Point2D.Double pt = pt(state.gps.lat, state.gps.lon); - for (int x = 0; x < mapTiles.length; x++) { - mapTiles[x].show(state, crc_errors, - translatePoint(pt, tileOffset[x])); + 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); } - } - private AltosSiteMap(boolean knowWhatYouAreDoing) { - if (!knowWhatYouAreDoing) { - throw new RuntimeException("Arggh."); + scrollRocketToVisible(pt); + + if (offset != tileOffset(last_pt)) { + ensureTilesAround(offset); } + + last_pt = pt; + last_state = state.state; } - public AltosSiteMap() { - JComponent comp = new JComponent() { - GrabNDrag scroller = new GrabNDrag(this); - { - addMouseMotionListener(scroller); - addMouseListener(scroller); - setAutoscrolls(true); + 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); } - }; + } ); + } - GridBagLayout layout = new GridBagLayout(); - comp.setLayout(layout); + 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); - for (int x = 0; x < 9; x++) { - c.gridx = x % 3; - c.gridy = x / 3; - mapTiles[x] = new AltosSiteMapTile(px_size); - layout.setConstraints(mapTiles[x], c); - comp.add(mapTiles[x]); + + 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)); } } -