/*!
Copyright (c) 2011-2015, Pavel Shramov, Bruno Bergot - MIT licence
*/
L.KML = L.FeatureGroup.extend({
initialize: function (kml, kmlOptions) {
this._kml = kml;
this._layers = {};
this._kmlOptions = kmlOptions;
if (kml) {
this.addKML(kml, kmlOptions);
}
},
addKML: function (xml, kmlOptions) {
var layers = L.KML.parseKML(xml, kmlOptions);
if (!layers || !layers.length) return;
for (var i = 0; i < layers.length; i++) {
this.fire('addlayer', {
layer: layers[i]
});
this.addLayer(layers[i]);
}
this.latLngs = L.KML.getLatLngs(xml);
this.fire('loaded');
},
latLngs: []
});
L.Util.extend(L.KML, {
parseKML: function (xml, kmlOptions) {
var style = this.parseStyles(xml, kmlOptions);
this.parseStyleMap(xml, style);
var el = xml.getElementsByTagName('Folder');
var layers = [], l;
for (var i = 0; i < el.length; i++) {
if (!this._check_folder(el[i])) { continue; }
l = this.parseFolder(el[i], style);
if (l) { layers.push(l); }
}
el = xml.getElementsByTagName('Placemark');
for (var j = 0; j < el.length; j++) {
if (!this._check_folder(el[j])) { continue; }
l = this.parsePlacemark(el[j], xml, style);
if (l) { layers.push(l); }
}
el = xml.getElementsByTagName('GroundOverlay');
for (var k = 0; k < el.length; k++) {
l = this.parseGroundOverlay(el[k]);
if (l) { layers.push(l); }
}
return layers;
},
// Return false if e's first parent Folder is not [folder]
// - returns true if no parent Folders
_check_folder: function (e, folder) {
e = e.parentNode;
while (e && e.tagName !== 'Folder')
{
e = e.parentNode;
}
return !e || e === folder;
},
parseStyles: function (xml, kmlOptions) {
var styles = {};
var sl = xml.getElementsByTagName('Style');
for (var i=0, len=sl.length; i 1) {
layer = new L.FeatureGroup(layers);
}
this.addPlacePopup(place, layer);
return layer;
},
addPlacePopup: function(place, layer) {
var el, i, j, name, descr = '';
el = place.getElementsByTagName('name');
if (el.length && el[0].childNodes.length) {
name = el[0].childNodes[0].nodeValue;
}
el = place.getElementsByTagName('description');
for (i = 0; i < el.length; i++) {
for (j = 0; j < el[i].childNodes.length; j++) {
descr = descr + el[i].childNodes[j].nodeValue;
}
}
if (name) {
// Reece
layer.name = name;
layer.description = descr;
if ( window.showLabels ) {
layer.bindTooltip('' + name + '', {
direction: 'auto',
sticky: true,
});
}
}
},
parseCoords: function (xml) {
var el = xml.getElementsByTagName('coordinates');
return this._read_coords(el[0]);
},
parseLineString: function (line, xml, options) {
var coords = this.parseCoords(line);
if (!coords.length) { return; }
return new L.Polyline(coords, options);
},
parseTrack: function (line, xml, options) {
var el = xml.getElementsByTagName('gx:coord');
if (el.length === 0) { el = xml.getElementsByTagName('coord'); }
var coords = [];
for (var j = 0; j < el.length; j++) {
coords = coords.concat(this._read_gxcoords(el[j]));
}
if (!coords.length) { return; }
return new L.Polyline(coords, options);
},
parsePoint: function (line, xml, options) {
var el = line.getElementsByTagName('coordinates');
if (!el.length) {
return;
}
var ll = el[0].childNodes[0].nodeValue.split(',');
// Reece
//options.draggable = true;
//
return new L.KMLMarker(new L.LatLng(ll[1], ll[0]), options);
},
parsePolygon: function (line, xml, options) {
var el, polys = [], inner = [], i, coords;
el = line.getElementsByTagName('outerBoundaryIs');
for (i = 0; i < el.length; i++) {
coords = this.parseCoords(el[i]);
if (coords) {
polys.push(coords);
}
}
el = line.getElementsByTagName('innerBoundaryIs');
for (i = 0; i < el.length; i++) {
coords = this.parseCoords(el[i]);
if (coords) {
inner.push(coords);
}
}
if (!polys.length) {
return;
}
if (options.fillColor) {
options.fill = true;
}
if (polys.length === 1) {
return new L.Polygon(polys.concat(inner), options);
}
return new L.MultiPolygon(polys, options);
},
getLatLngs: function (xml) {
var el = xml.getElementsByTagName('coordinates');
var coords = [];
for (var j = 0; j < el.length; j++) {
// text might span many childNodes
coords = coords.concat(this._read_coords(el[j]));
}
return coords;
},
_read_coords: function (el) {
var text = '', coords = [], i;
for (i = 0; i < el.childNodes.length; i++) {
text = text + el.childNodes[i].nodeValue;
}
text = text.split(/[\s\n]+/);
for (i = 0; i < text.length; i++) {
var ll = text[i].split(',');
if (ll.length < 2) {
continue;
}
coords.push(new L.LatLng(ll[1], ll[0]));
}
return coords;
},
_read_gxcoords: function (el) {
var text = '', coords = [];
text = el.firstChild.nodeValue.split(' ');
coords.push(new L.LatLng(text[1], text[0]));
return coords;
},
parseGroundOverlay: function (xml) {
var latlonbox = xml.getElementsByTagName('LatLonBox')[0];
var bounds = new L.LatLngBounds(
[
latlonbox.getElementsByTagName('south')[0].childNodes[0].nodeValue,
latlonbox.getElementsByTagName('west')[0].childNodes[0].nodeValue
],
[
latlonbox.getElementsByTagName('north')[0].childNodes[0].nodeValue,
latlonbox.getElementsByTagName('east')[0].childNodes[0].nodeValue
]
);
var attributes = {Icon: true, href: true, color: true};
function _parse (xml) {
var options = {}, ioptions = {};
for (var i = 0; i < xml.childNodes.length; i++) {
var e = xml.childNodes[i];
var key = e.tagName;
if (!attributes[key]) { continue; }
var value = e.childNodes[0].nodeValue;
if (key === 'Icon') {
ioptions = _parse(e);
if (ioptions.href) { options.href = ioptions.href; }
} else if (key === 'href') {
options.href = value;
} else if (key === 'color') {
options.opacity = parseInt(value.substring(0, 2), 16) / 255.0;
options.color = '#' + value.substring(6, 8) + value.substring(4, 6) + value.substring(2, 4);
}
}
return options;
}
var options = {};
options = _parse(xml);
if (latlonbox.getElementsByTagName('rotation')[0] !== undefined) {
var rotation = latlonbox.getElementsByTagName('rotation')[0].childNodes[0].nodeValue;
options.rotation = parseFloat(rotation);
}
return new L.RotatedImageOverlay(options.href, bounds, {opacity: options.opacity, angle: options.rotation});
}
});
L.KMLIcon = L.Icon.extend({
options: {
iconSize: [32, 32],
iconAnchor: [16, 16],
},
_setIconStyles: function (img, name) {
L.Icon.prototype._setIconStyles.apply(this, [img, name]);
},
_createImg: function (src, el) {
el = el || document.createElement('img');
el.onload = this.applyCustomStyles.bind(this,el)
el.src = src;
return el;
},
applyCustomStyles: function(img) {
var options = this.options;
var width = options.iconSize[0];
var height = options.iconSize[1];
this.options.popupAnchor = [0,(-0.83*height)];
if (options.anchorType.x === 'fraction')
img.style.marginLeft = (-options.anchorRef.x * width) + 'px';
if (options.anchorType.y === 'fraction')
img.style.marginTop = ((-(1 - options.anchorRef.y) * height) + 1) + 'px';
if (options.anchorType.x === 'pixels')
img.style.marginLeft = (-options.anchorRef.x) + 'px';
if (options.anchorType.y === 'pixels')
img.style.marginTop = (options.anchorRef.y - height + 1) + 'px';
}
});
L.KMLMarker = L.Marker.extend({
options: {
icon: new L.KMLIcon.Default()
}
});
// Inspired by https://github.com/bbecquet/Leaflet.PolylineDecorator/tree/master/src
L.RotatedImageOverlay = L.ImageOverlay.extend({
options: {
angle: 0
},
_reset: function () {
L.ImageOverlay.prototype._reset.call(this);
this._rotate();
},
_animateZoom: function (e) {
L.ImageOverlay.prototype._animateZoom.call(this, e);
this._rotate();
},
_rotate: function () {
if (L.DomUtil.TRANSFORM) {
// use the CSS transform rule if available
this._image.style[L.DomUtil.TRANSFORM] += ' rotate(' + this.options.angle + 'deg)';
} else if (L.Browser.ie) {
// fallback for IE6, IE7, IE8
var rad = this.options.angle * (Math.PI / 180),
costheta = Math.cos(rad),
sintheta = Math.sin(rad);
this._image.style.filter += ' progid:DXImageTransform.Microsoft.Matrix(sizingMethod=\'auto expand\', M11=' +
costheta + ', M12=' + (-sintheta) + ', M21=' + sintheta + ', M22=' + costheta + ')';
}
},
getBounds: function () {
return this._bounds;
}
});