var gMapStyles = {
// OSM tile usage policy: http://wiki.openstreetmap.org/wiki/Tile_usage_policy
+ // Find some more OSM ones at http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Tile_servers
osm_mapnik:
{name: "OpenStreetMap (Mapnik)",
url: "http://tile.openstreetmap.org/{z}/{x}/{y}.png",
url: "http://tah.openstreetmap.org/Tiles/tile/{z}/{x}/{y}.png",
copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>'},
mapquest_open:
- {name: "MapQuest Open",
+ {name: "MapQuest OSM",
url: "http://otile1.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png",
- copyright: 'Data, imagery and map information provided by MapQuest, <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.'}
+ copyright: 'Data, imagery and map information provided by MapQuest, <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.'},
+ mapquest_aerial:
+ {name: "MapQuest Open Aerial",
+ url: "http://oatile1.mqcdn.com/naip/{z}/{x}/{y}.png",
+ copyright: 'Data, imagery and map information provided by MapQuest, <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.'},
+ google_map:
+ {name: "Google Maps",
+ url: " http://mt1.google.com/vt/x={x}&y={y}&z={z}",
+ copyright: 'Map data and imagery © <a href="http://maps.google.com/">Google</a>'},
};
var gActiveMap = "osm_mapnik";
var gDragging = false;
var gZoomTouchID;
+var gGeoWatchID;
+var gTrack = [];
+var gLastTrackPoint;
+
function initMap() {
gCanvas = document.getElementById("map");
gContext = gCanvas.getContext("2d");
}
}
+function gps2xy(aLatitude, aLongitude) {
+ var maxZoomFactor = Math.pow(2, gMaxZoom) * gTileSize;
+ var convLat = aLatitude * Math.PI / 180;
+ var rawY = (1 - Math.log(Math.tan(convLat) +
+ 1 / Math.cos(convLat)) / Math.PI) / 2 * maxZoomFactor;
+ var rawX = (aLongitude + 180) / 360 * maxZoomFactor;
+ return {x: Math.round(rawX),
+ y: Math.round(rawY)};
+}
+
+function xy2gps(aX, aY) {
+ var maxZoomFactor = Math.pow(2, gMaxZoom) * gTileSize;
+ var n = Math.PI - 2 * Math.PI * aY / maxZoomFactor;
+ return {latitude: 180 / Math.PI *
+ Math.atan(0.5 * (Math.exp(n) - Math.exp(-n))),
+ longitude: aX / maxZoomFactor * 360 - 180};
+}
+
function setMapStyle() {
var mapSel = document.getElementById("mapSelector");
if (mapSel.selectedIndex >= 0 && gActiveMap != mapSel.value) {
}
}
}
+ if (gTrack.length)
+ for (var i = 0; i < gTrack.length; i++) {
+ drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude);
+ }
+}
+
+function drawTrackPoint(aLatitude, aLongitude) {
+ var trackpoint = gps2xy(aLatitude, aLongitude);
+ gContext.strokeStyle = "#FF0000";
+ gContext.fillStyle = gContext.strokeStyle;
+ gContext.lineWidth = 2;
+ gContext.lineCap = "round";
+ gContext.lineJoin = "round";
+ gContext.beginPath();
+ if (!gLastTrackPoint || gLastTrackPoint == trackpoint) {
+ gContext.arc((trackpoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2,
+ (trackpoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2,
+ gContext.lineWidth, 0, Math.PI * 2, false);
+ gContext.fill();
+ }
+ else {
+ gContext.moveTo((gLastTrackPoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2,
+ (gLastTrackPoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2);
+ gContext.lineTo((trackpoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2,
+ (trackpoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2);
+ gContext.stroke();
+ }
+ gLastTrackPoint = trackpoint;
}
var mapEvHandler = {
// must equal the pixel distance of the new center and that point.
var x = coordObj.clientX - gCanvas.offsetLeft;
var y = coordObj.clientY - gCanvas.offsetTop;
+ // Debug output: "coordinates" of the point the mouse was over.
+ /*
+ var ptCoord = {x: gPos.x + (x - gCanvas.width / 2) * gZoomFactor,
+ y: gPos.y + (x - gCanvas.height / 2) * gZoomFactor};
+ var gpsCoord = xy2gps(ptCoord.x, ptCoord.y);
+ var pt2Coord = gps2xy(gpsCoord.latitude, gpsCoord.longitude);
+ document.getElementById("debug").textContent =
+ ptCoord.x + "/" + ptCoord.y + " - " +
+ gpsCoord.latitude + "/" + gpsCoord.longitude + " - " +
+ pt2Coord.x + "/" + pt2Coord.y;
+ */
// Zoom factor after this action.
var newZoomFactor = Math.pow(2, gMaxZoom - gPos.z + (delta > 0 ? -1 : 1));
gPos.x -= (x - gCanvas.width / 2) * (newZoomFactor - gZoomFactor);
gPos.y -= (y - gCanvas.height / 2) * (newZoomFactor - gZoomFactor);
- document.getElementById("debug").textContent = newZoomFactor + " - " + gZoomFactor;
if (delta > 0)
zoomIn();
}
}
};
+
+geofake = {
+ tracking: false,
+ watchPosition: function(aSuccessCallback, aErrorCallback, aPrefObject) {
+ this.tracking = true;
+ var watchCall = function() {
+ aSuccessCallback({timestamp: Date.now(),
+ coords: {latitude: 48.208174, // + Math.random() - .5,
+ longitude: 16.373819, // + Math.random() - .5,
+ accuracy: 20}});
+ if (geofake.tracking)
+ setTimeout(watchCall, 1000);
+ };
+ setTimeout(watchCall, 1000);
+ return "foo";
+ },
+ clearWatch: function(aID) {
+ this.tracking = false;
+ }
+}
+
+function startTracking() {
+ if (navigator.geolocation) {
+ //gGeoWatchID = geofake.watchPosition(
+ gGeoWatchID = navigator.geolocation.watchPosition(
+ function(position) {
+ // Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords
+ gTrack.push({time: position.timestamp, coords: position.coords});
+ drawTrackPoint(position.coords.latitude, position.coords.longitude);
+ },
+ function(error) {
+ // Ignore erros for the moment, but this is good for debugging.
+ // See https://developer.mozilla.org/en/Using_geolocation#Handling_errors
+ document.getElementById("debug").textContent = error.message;
+ },
+ {enableHighAccuracy: true}
+ );
+ }
+}
+
+function endTracking() {
+ if (gGeoWatchID) {
+ navigator.geolocation.clearWatch(gGeoWatchID);
+ }
+}
projects / lantea.git / commitdiff