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mapping.js
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mapping.js
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app.service('mapping', function($http, geotracker, geomath, animation) {
var self = this;
if (typeof google == "undefined" ) {
self.available = false;
} else {
self.available = true;
}
/** markers by name */
this.markers = {};
/** configuration for maps */
this.config = {
google: {
zoom: 16,
mapTypeId: self.available ? google.maps.MapTypeId.TERRAIN : "none",
disableDefaultUI: true
},
animationSteps: 50,
closeUpZoom: 20,
cameraAnimationSteps: 100
};
/**
* add a marker
* @param type
* @param name
* @param coords
*/
this.addMarker = function(type, name, coords) {
if (!coords) {
coords = geotracker.geo.coords;
}
self.markers[name] = self._markerFactory(type, coords);
return { marker: self.markers[name], coords: coords};
}
/**
* remove marker
* @param ref
*/
this.removeMarker = function(ref) {
for (var c in self.markers) {
if (self.markers[c] == ref) {
self.markers.splice(c, 1);
}
}
ref.marker.setMap(null);
}
/**
* animate camera to geoposition
* @param coords
* @param config
* @param callback
*/
this.animateCameraTo = function(coords, config, callback) {
var distance = geomath.calculateDistance(self.map.getCenter(), coords);
var bearing = geomath.calculateBearing(self.map.getCenter(), coords);
var distance_step = distance / self.config.cameraAnimationSteps;
var frames = [];
for (var c = 0; c < self.config.cameraAnimationSteps; c++) {
var obj = {};
obj.coords = geomath.projectOut(self.map.getCenter(), distance_step * c, bearing+180);
frames.push(obj);
}
/* ditch the zooming for now - on the type of map I'm using it doesn't go further
for (var c = 0; c < self.config.cameraAnimationSteps; c++) {
var obj = {};
if (config.animation = "arc") {
obj.zoom = parseInt(self.map.getZoom() + (self.config.closeUpZoom - self.map.getZoom()) * Math.sin(c / self.config.cameraAnimationSteps * Math.PI/2));
}
frames.push(obj);
}*/
if (config && config.returnToOriginal == true) {
frames.push({ pause: 20 });
frames = frames.concat(frames.slice(0).reverse());
}
frames.reverse();
animation.start({ targetref: self.map, target: "camera", frames: frames },
self._onAnimationFrame, callback);
}
/**
* animate marker to a position based on distance and angle
* @param ref
* @param distance
* @param angle
*/
this.animateMarkerBy = function(ref, distance, angle, config, callback) {
var distance_step = distance / self.config.animationSteps;
var frames = [];
var animSteps = self.config.animationSteps;
if (config.duration) {
animSteps *= config.duration;
}
for (var c = 0; c < animSteps; c++) {
var obj = {};
obj.coords = geomath.projectOut(ref.coords, distance_step * c, angle-90);
if (config.animation == "arc") {
obj.size = ref.marker.icon.size.width * Math.sin(c / animSteps * Math.PI) + ref.marker.icon.size.width
}
frames.push(obj);
}
frames.reverse();
animation.start({ targetref: ref, target: "marker", frames: frames },
self._onAnimationFrame, callback);
}
/**
* move marker to coordinates
* @param ref
* @param coords
*/
this.moveMarkerTo = function(ref, coords) {
ref.marker.setPosition(new google.maps.LatLng(coords.latitude, coords.longitude));
ref.coords = coords;
}
/**
* move marker by a specific distance at a specific angle
* @param ref
* @param distance
* @param angle
*/
this.moveMarkerBy = function(ref, distance, angle) {
var moveto = geomath.projectOut(ref.coords, distance, angle);
this.moveMarkerTo(ref, moveto);
}
/**
* create the map
* @param map ID (in DOM)
* @param center
* @returns {Function|map|*|exports.minify.map|optionTypes.map|SourceNode.toStringWithSourceMap.map}
*/
this.create = function(mID, center) {
var ll;
if (center) {
ll = new google.maps.LatLng(center.coords.latitude, center.coords.longitude)
} else {
ll = new google.maps.LatLng(geotracker.geo.coords.latitude, geotracker.geo.coords.longitude)
}
self.config.google.center = ll;
self.map = new google.maps.Map(document.getElementById(mID), self.config.google);
geotracker.subscribe(function(geo) {
self.map.setCenter(new google.maps.LatLng(geo.coords.latitude, geo.coords.longitude));
});
return self.map;
}
/**
* animation frame callback
* @param target
* @param targetref
* @param frame
* @private
*/
this._onAnimationFrame = function(target, targetref, f) {
switch (target) {
case "marker":
if (f.size) {
targetref.marker.icon.scaledSize = new google.maps.Size(f.size, f.size);
targetref.marker.icon.size = new google.maps.Size(f.size, f.size);
}
self.moveMarkerTo(targetref, f.coords);
break;
case "camera":
if (f.zoom && f.zoom != self.lastZoom) {
self.lastZoom = f.zoom;
targetref.setZoom(f.zoom);
}
if (f.coords) {
targetref.panTo( new google.maps.LatLng(f.coords.latitude, f.coords.longitude) );
}
break;
}
}
/**
* make a marker
* @param type
* @private
*/
this._markerFactory = function(type, coords) {
var latlng;
if (coords) {
latlng = new google.maps.LatLng(coords.latitude, coords.longitude);
}
switch (type) {
case "player":
return new google.maps.Marker({
map: self.map,
position: latlng,
zIndex: -99,
flat: true,
icon: {
anchor: new google.maps.Point(168, 900),
path: "M 337.14285,951.79076 C 336.85134,1085.9601 1.8926143,1088.4865 -5.7142858e-6,951.79076 -5.7142858e-6,827.13221 169.31441,188.15081 168.57142,198.07649 c 0,0 168.57143,629.05572 168.57143,753.71427 z",
fillColor: '#333',
fillOpacity: 1,
strokeColor: '',
strokeWeight: 0,
scale:.035
}
});
case "ball":
return new google.maps.Marker({
map: self.map,
position: latlng,
zIndex: 1,
icon: new google.maps.MarkerImage(
'images/golf-ball.png',
new google.maps.Size(15, 15),
new google.maps.Point(0, 0),
new google.maps.Point(Math.floor(15/2), Math.floor(15/2)),
new google.maps.Size(15, 15)
),
});
case "dot":
return new google.maps.Marker({
map: self.map,
position: latlng,
icon: new google.maps.MarkerImage(
'images/dot.png',
new google.maps.Size(16, 16),
new google.maps.Point(0, 0),
new google.maps.Point(Math.floor(16/2), Math.floor(16/2)),
new google.maps.Size(16, 16)
)
});
default:
return new google.maps.Marker({
position: latlng,
map: self.map
});
}
}
});