var gTileSize = 256;
var gMaxZoom = 18; // The minimum is 0.
+var gMinTrackAccuracy = 1000; // meters
+var gTrackWidth = 2; // pixels
+var gTrackColor = "#FF0000";
+var gCurLocSize = 5; // pixels
+var gCurLocColor = "#800000";
+
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",
- 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>'},
- osm_tilesathome:
- {name: "OpenStreetMap (OSMarender)",
- 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>'},
+ copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+ osm_cyclemap:
+ {name: "Cycle Map (OSM)",
+ url: "http://[a-c].tile.opencyclemap.org/cycle/{z}/{x}/{y}.png",
+ copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+ osm_transmap:
+ {name: "Transport Map (OSM)",
+ url: "http://[a-c].tile2.opencyclemap.org/transport/{z}/{x}/{y}.png",
+ copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
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>.'},
+ url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png",
+ copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors (<a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>), tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</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>.'},
+ url: "http://oatile[1-4].mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg",
+ copyright: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a>, portions Courtesy NASA/JPL-Caltech and U.S. Depart. of Agriculture, Farm Service Agency.'},
+ opengeoserver_arial:
+ {name: "OpenGeoServer Aerial",
+ url: "http://services.opengeoserver.org/tiles/1.0.0/globe.aerial_EPSG3857/{z}/{x}/{y}.png?origin=nw",
+ copyright: 'Tiles by <a href="http://www.opengeoserver.org/">OpenGeoServer.org</a>, <a href="https://creativecommons.org/licenses/by/3.0/at/">CC-BY 3.0 AT</a>.'},
google_map:
{name: "Google Maps",
url: " http://mt1.google.com/vt/x={x}&y={y}&z={z}",
var gGeoWatchID;
var gTrack = [];
-var gLastTrackPoint;
+var gLastTrackPoint, gLastDrawnPoint;
var gCenterPosition = true;
+var gCurPosMapCache;
+
function initMap() {
gGeolocation = navigator.geolocation;
gCanvas = document.getElementById("map");
gCanvas.addEventListener("touchcancel", mapEvHandler, false);
gCanvas.addEventListener("touchleave", mapEvHandler, false);
+ // XXX deprecated? see https://groups.google.com/forum/?fromgroups#!topic/mozilla.dev.planning/kuhrORubaRY[1-25]
gCanvas.addEventListener("DOMMouseScroll", mapEvHandler, false);
gCanvas.addEventListener("mousewheel", mapEvHandler, false);
}
function resizeAndDraw() {
- var viewportWidth = window.innerWidth;
- var viewportHeight = window.innerHeight;
+ var viewportWidth = Math.min(window.innerWidth, window.outerWidth);
+ var viewportHeight = Math.min(window.innerHeight, window.outerHeight);
- var canvasWidth = viewportWidth * 0.98;
- var canvasHeight = (viewportHeight - 100) * 0.98;
+ var canvasWidth = viewportWidth - 2;
+ var canvasHeight = viewportHeight - 2;
gCanvas.style.position = "fixed";
gCanvas.width = canvasWidth;
gCanvas.height = canvasHeight;
drawMap();
+ showUI();
}
function zoomIn() {
if (mapSel.selectedIndex >= 0 && gActiveMap != mapSel.value) {
gActiveMap = mapSel.value;
gTiles = {};
+ document.getElementById("copyright").innerHTML =
+ gMapStyles[gActiveMap].copyright;
+ showUI();
drawMap();
}
}
function tileURL(x, y, z) {
var norm = normaliseIndices(x, y, z);
- return gMapStyles[gActiveMap].url.replace("{x}", norm.x)
- .replace("{y}", norm.y)
- .replace("{z}", norm.z);
+ return gMapStyles[gActiveMap].url
+ .replace("{x}", norm.x)
+ .replace("{y}", norm.y)
+ .replace("{z}", norm.z)
+ .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 2)))
+ .replace("[1-4]", 1 + Math.floor(Math.random() * 3));
}
// Returns true if the tile is outside the current view.
// Go through all the tiles we want.
// If any of them aren't loaded or being loaded, do so.
for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) {
- for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) {
+ for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) { // slow script warnings on the tablet appear here!
var xoff = (x * size - xMin) / gZoomFactor;
var yoff = (y * size - yMin) / gZoomFactor;
var tileKey = encodeIndex(x, y, gPos.z);
}
}
}
- if (gTrack.length)
+ if (gTrack.length) {
+ gLastDrawnPoint = null;
for (var i = 0; i < gTrack.length; i++) {
- drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude);
+ drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude,
+ (i + 1 >= gTrack.length));
}
+ }
}
-function drawTrackPoint(aLatitude, aLongitude) {
+function drawTrackPoint(aLatitude, aLongitude, lastPoint) {
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,
+ // lastPoint is for optimizing (not actually executing the draw until the last)
+ trackpoint.optimized = (lastPoint === false);
+ var mappos = {x: Math.round((trackpoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2),
+ y: Math.round((trackpoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2)};
+
+ if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) {
+ gContext.strokeStyle = gTrackColor;
+ gContext.fillStyle = gContext.strokeStyle;
+ gContext.lineWidth = gTrackWidth;
+ gContext.lineCap = "round";
+ gContext.lineJoin = "round";
+ }
+ if (!gLastDrawnPoint || gLastDrawnPoint == trackpoint) {
+ // This breaks optimiziation, so make sure to close path and reset optimization.
+ if (gLastDrawnPoint && gLastDrawnPoint.optimized)
+ gContext.stroke();
+ gContext.beginPath();
+ trackpoint.optimized = false;
+ gContext.arc(mappos.x, mappos.y,
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();
+ if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) {
+ gContext.beginPath();
+ gContext.moveTo(Math.round((gLastDrawnPoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2),
+ Math.round((gLastDrawnPoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2));
+ }
+ gContext.lineTo(mappos.x, mappos.y);
+ if (!trackpoint.optimized)
+ gContext.stroke();
}
- gLastTrackPoint = trackpoint;
+ gLastDrawnPoint = trackpoint;
+}
+
+function drawCurrentLocation(trackPoint) {
+ var locpoint = gps2xy(trackPoint.coords.latitude, trackPoint.ccords.longitude);
+ var circleSize = gCurLocSize;
+ var mappos = {x: Math.round((locpoint.x - gPos.x) / gZoomFactor + gCanvas.width / 2),
+ y: Math.round((locpoint.y - gPos.y) / gZoomFactor + gCanvas.height / 2)};
+
+ // Initialize or draw cache.
+ if (!gCurPosMapCache)
+ gCurPosMapCache = {point: locpoint,
+ data: context.createImageData(circleSize, circleSize)};
+ else
+ gContext.putImageData(gCurPosMapCache, mappos.x - circleSize / 2,
+ mappos.y - circleSize / 2);
+
+ // Cache overdrawn area.
+ gCurPosMapCache = gContext.getImageData(mappos.x - circleSize / 2,
+ mappos.y - circleSize / 2,
+ circleSize, circleSize);
+
+ gContext.strokeStyle = gCurLocColor;
+ gContext.fillStyle = gContext.strokeStyle;
+ gContext.beginPath();
+ gContext.arc(mappos.x, mappos.y,
+ circleSize, 0, Math.PI * 2, false);
+ gContext.fill();
}
var mapEvHandler = {
}
gLastMouseX = x;
gLastMouseY = y;
+ showUI();
break;
case "mousemove":
case "touchmove":
gPos.x -= dX * gZoomFactor;
gPos.y -= dY * gZoomFactor;
drawMap();
+ showUI();
}
gLastMouseX = x;
gLastMouseY = y;
case "mouseup":
case "touchend":
gDragging = false;
+ showUI();
break;
case "mouseout":
case "touchcancel":
return;
};
getStoredTrack();
- if (navigator.geolocation) {
+ if (gGeolocation) {
gGeoWatchID = gGeolocation.watchPosition(
function(position) {
// Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords
var tPoint = {time: position.timestamp,
- coords: position.coords,
+ coords: {latitude: position.coords.latitude,
+ longitude: position.coords.longitude,
+ altitude: position.coords.altitude,
+ accuracy: position.coords.accuracy,
+ altitudeAccuracy: position.coords.altitudeAccuracy,
+ heading: position.coords.heading,
+ speed: position.coords.speed},
beginSegment: !gLastTrackPoint};
- gTrack.push(tPoint);
- gTrackStore.push(tPoint);
- drawTrackPoint(position.coords.latitude, position.coords.longitude);
- if (gCenterPosition) {
- var posCoord = gps2xy(position.coords.latitude,
- position.coords.longitude);
- if (Math.abs(gPos.x - posCoord.x) > gCanvas.width * gZoomFactor / 4 ||
- Math.abs(gPos.y - posCoord.y) > gCanvas.height * gZoomFactor / 4) {
- gPos.x = posCoord.x;
- gPos.y = posCoord.y;
- drawMap();
+ // Only add point to track is accuracy is good enough.
+ if (tPoint.coords.accuracy < gMinTrackAccuracy) {
+ gLastTrackPoint = tPoint;
+ gTrack.push(tPoint);
+ try { gTrackStore.push(tPoint); } catch(e) {}
+ var redrawn = false;
+ if (gCenterPosition) {
+ var posCoord = gps2xy(position.coords.latitude,
+ position.coords.longitude);
+ if (Math.abs(gPos.x - posCoord.x) > gCanvas.width * gZoomFactor / 4 ||
+ Math.abs(gPos.y - posCoord.y) > gCanvas.height * gZoomFactor / 4) {
+ gPos.x = posCoord.x;
+ gPos.y = posCoord.y;
+ drawMap(); // This draws the current point as well.
+ redrawn = true;
+ }
}
+ if (!redrawn)
+ drawTrackPoint(position.coords.latitude, position.coords.longitude, true);
}
+ drawCurrentLocation(tPoint);
},
function(error) {
// Ignore erros for the moment, but this is good for debugging.
projects / lantea.git / blobdiff