You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
477 lines
13 KiB
477 lines
13 KiB
/*!
|
|
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<len; i++) {
|
|
var style = this.parseStyle(sl[i], kmlOptions);
|
|
if (style) {
|
|
var styleName = '#' + style.id;
|
|
styles[styleName] = style;
|
|
}
|
|
}
|
|
return styles;
|
|
},
|
|
|
|
parseStyle: function (xml, kmlOptions) {
|
|
var style = {}, poptions = {}, ioptions = {}, el, id;
|
|
|
|
var attributes = {color: true, width: true, Icon: true, href: true, hotSpot: true};
|
|
|
|
function _parse (xml) {
|
|
var options = {};
|
|
for (var i = 0; i < xml.childNodes.length; i++) {
|
|
var e = xml.childNodes[i];
|
|
var key = e.tagName;
|
|
if (!attributes[key]) { continue; }
|
|
if (key === 'hotSpot')
|
|
{
|
|
for (var j = 0; j < e.attributes.length; j++) {
|
|
options[e.attributes[j].name] = e.attributes[j].nodeValue;
|
|
}
|
|
} else {
|
|
var value = e.childNodes[0].nodeValue;
|
|
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);
|
|
} else if (key === 'width') {
|
|
options.weight = parseInt(value);
|
|
} else if (key === 'Icon') {
|
|
ioptions = _parse(e);
|
|
if (ioptions.href) { options.href = ioptions.href; }
|
|
} else if (key === 'href') {
|
|
options.href = value;
|
|
}
|
|
}
|
|
}
|
|
return options;
|
|
}
|
|
|
|
el = xml.getElementsByTagName('LineStyle');
|
|
if (el && el[0]) { style = _parse(el[0]); }
|
|
el = xml.getElementsByTagName('PolyStyle');
|
|
if (el && el[0]) { poptions = _parse(el[0]); }
|
|
if (poptions.color) { style.fillColor = poptions.color; }
|
|
if (poptions.opacity) { style.fillOpacity = poptions.opacity; }
|
|
el = xml.getElementsByTagName('IconStyle');
|
|
if (el && el[0]) { ioptions = _parse(el[0]); }
|
|
if (ioptions.href) {
|
|
var iconOptions = {
|
|
iconUrl: ioptions.href,
|
|
shadowUrl: null,
|
|
anchorRef: {x: ioptions.x, y: ioptions.y},
|
|
anchorType: {x: ioptions.xunits, y: ioptions.yunits}
|
|
};
|
|
|
|
if (typeof kmlOptions === "object" && typeof kmlOptions.iconOptions === "object") {
|
|
L.Util.extend(iconOptions, kmlOptions.iconOptions);
|
|
}
|
|
|
|
style.icon = new L.KMLIcon(iconOptions);
|
|
}
|
|
|
|
id = xml.getAttribute('id');
|
|
if (id && style) {
|
|
style.id = id;
|
|
}
|
|
|
|
return style;
|
|
},
|
|
|
|
parseStyleMap: function (xml, existingStyles) {
|
|
var sl = xml.getElementsByTagName('StyleMap');
|
|
|
|
for (var i = 0; i < sl.length; i++) {
|
|
var e = sl[i], el;
|
|
var smKey, smStyleUrl;
|
|
|
|
el = e.getElementsByTagName('key');
|
|
if (el && el[0]) { smKey = el[0].textContent; }
|
|
el = e.getElementsByTagName('styleUrl');
|
|
if (el && el[0]) { smStyleUrl = el[0].textContent; }
|
|
|
|
if (smKey === 'normal')
|
|
{
|
|
existingStyles['#' + e.getAttribute('id')] = existingStyles[smStyleUrl];
|
|
}
|
|
}
|
|
|
|
return;
|
|
},
|
|
|
|
parseFolder: function (xml, style) {
|
|
var el, layers = [], l;
|
|
el = xml.getElementsByTagName('Folder');
|
|
for (var i = 0; i < el.length; i++) {
|
|
if (!this._check_folder(el[i], xml)) { 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], xml)) { 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++) {
|
|
if (!this._check_folder(el[k], xml)) { continue; }
|
|
l = this.parseGroundOverlay(el[k]);
|
|
if (l) { layers.push(l); }
|
|
}
|
|
if (!layers.length) { return; }
|
|
if (layers.length === 1) {
|
|
l = layers[0];
|
|
} else {
|
|
l = new L.FeatureGroup(layers);
|
|
}
|
|
el = xml.getElementsByTagName('name');
|
|
if (el.length && el[0].childNodes.length) {
|
|
l.options.name = el[0].childNodes[0].nodeValue;
|
|
}
|
|
return l;
|
|
},
|
|
|
|
parsePlacemark: function (place, xml, style, options) {
|
|
var h, i, j, k, el, il, opts = options || {};
|
|
|
|
el = place.getElementsByTagName('styleUrl');
|
|
for (i = 0; i < el.length; i++) {
|
|
var url = el[i].childNodes[0].nodeValue;
|
|
for (var a in style[url]) {
|
|
opts[a] = style[url][a];
|
|
}
|
|
}
|
|
|
|
il = place.getElementsByTagName('Style')[0];
|
|
if (il) {
|
|
var inlineStyle = this.parseStyle(place);
|
|
if (inlineStyle) {
|
|
for (k in inlineStyle) {
|
|
opts[k] = inlineStyle[k];
|
|
}
|
|
}
|
|
}
|
|
|
|
var multi = ['MultiGeometry', 'MultiTrack', 'gx:MultiTrack'];
|
|
for (h in multi) {
|
|
el = place.getElementsByTagName(multi[h]);
|
|
for (i = 0; i < el.length; i++) {
|
|
var layer = this.parsePlacemark(el[i], xml, style, opts);
|
|
this.addPlacePopup(place, layer);
|
|
return layer;
|
|
}
|
|
}
|
|
|
|
var layers = [];
|
|
|
|
var parse = ['LineString', 'Polygon', 'Point', 'Track', 'gx:Track'];
|
|
for (j in parse) {
|
|
var tag = parse[j];
|
|
el = place.getElementsByTagName(tag);
|
|
for (i = 0; i < el.length; i++) {
|
|
var l = this['parse' + tag.replace(/gx:/, '')](el[i], xml, opts);
|
|
if (l) { layers.push(l); }
|
|
}
|
|
}
|
|
|
|
if (!layers.length) {
|
|
return;
|
|
}
|
|
var layer = layers[0];
|
|
if (layers.length > 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) {
|
|
layer.bindPopup('<h2>' + name + '</h2>' + descr, { className: 'kml-popup'});
|
|
}
|
|
},
|
|
|
|
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(',');
|
|
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;
|
|
}
|
|
});
|
|
|