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src/main/resources/leafletmap/leaflet/leaflet.rotatedMarker.js
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add Leaflet
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(function() {
// save these original methods before they are overwritten
var proto_initIcon = L.Marker.prototype._initIcon;
var proto_setPos = L.Marker.prototype._setPos;
var oldIE = (L.DomUtil.TRANSFORM === 'msTransform');
L.Marker.addInitHook(function () {
var iconOptions = this.options.icon && this.options.icon.options;
var iconAnchor = iconOptions && this.options.icon.options.iconAnchor;
if (iconAnchor) {
iconAnchor = (iconAnchor[0] + 'px ' + iconAnchor[1] + 'px');
}
this.options.rotationOrigin = this.options.rotationOrigin || iconAnchor || 'center bottom' ;
this.options.rotationAngle = this.options.rotationAngle || 0;
// Ensure marker keeps rotated during dragging
this.on('drag', function(e) { e.target._applyRotation(); });
});
L.Marker.include({
_initIcon: function() {
proto_initIcon.call(this);
},
_setPos: function (pos) {
proto_setPos.call(this, pos);
this._applyRotation();
},
_applyRotation: function () {
if(this.options.rotationAngle) {
this._icon.style[L.DomUtil.TRANSFORM+'Origin'] = this.options.rotationOrigin;
if(oldIE) {
// for IE 9, use the 2D rotation
this._icon.style[L.DomUtil.TRANSFORM] = 'rotate(' + this.options.rotationAngle + 'deg)';
} else {
// for modern browsers, prefer the 3D accelerated version
this._icon.style[L.DomUtil.TRANSFORM] += ' rotateZ(' + this.options.rotationAngle + 'deg)';
}
}
},
setRotationAngle: function(angle) {
this.options.rotationAngle = angle;
this.update();
return this;
},
setRotationOrigin: function(origin) {
this.options.rotationOrigin = origin;
this.update();
return this;
}
});
})();
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