diff --git a/dist/leaflet.motion.js b/dist/leaflet.motion.js
index ab682fc..6a7ba35 100644
--- a/dist/leaflet.motion.js
+++ b/dist/leaflet.motion.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *  leaflet.motion - v0.1.7 (https://github.com/Igor-Vladyka/leaflet.motion#readme) 
+ *  leaflet.motion - v0.1.8 (https://github.com/Igor-Vladyka/leaflet.motion#readme) 
  *  Animation plugin for Leaflet.js
  *  
  *  MIT (http://www.opensource.org/licenses/mit-license.php)
@@ -106,6 +106,17 @@ eval("/**\n\tMIT License http://www.opensource.org/licenses/mit-license.php\n\tA
 
 /***/ }),
 
+/***/ "./src/layer/leaflet.motion.polygon.js":
+/*!*********************************************!*\
+  !*** ./src/layer/leaflet.motion.polygon.js ***!
+  \*********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+eval("/**\n\tMIT License http://www.opensource.org/licenses/mit-license.php\n\tAuthor Igor Vladyka <igor.vladyka@gmail.com> (https://github.com/Igor-Vladyka/leaflet.motion)\n**/\n\nL.Motion.Polygon = L.Polygon.extend(L.Motion.Animate);\n\nL.motion.polygon = function(latlngs, options, motionOptions, markerOptions){\n    return new L.Motion.Polygon(latlngs, options, motionOptions, markerOptions);\n};\n\n\n//# sourceURL=webpack:///./src/layer/leaflet.motion.polygon.js?");
+
+/***/ }),
+
 /***/ "./src/layer/leaflet.motion.polyline.js":
 /*!**********************************************!*\
   !*** ./src/layer/leaflet.motion.polyline.js ***!
@@ -162,13 +173,13 @@ eval("/**\r\n\tMIT License http://www.opensource.org/licenses/mit-license.php\r\
 /***/ }),
 
 /***/ 0:
-/*!***************************************************************************************************************************************************************************************************************!*\
-  !*** multi ./src/leaflet.motion.js ./src/leaflet.motion.utils.js ./src/leaflet.motion.easing.js ./src/layer/leaflet.motion.polyline.js ./src/layer/leaflet.motion.group.js ./src/layer/leaflet.motion.seq.js ***!
-  \***************************************************************************************************************************************************************************************************************/
+/*!*****************************************************************************************************************************************************************************************************************************************************!*\
+  !*** multi ./src/leaflet.motion.js ./src/leaflet.motion.utils.js ./src/leaflet.motion.easing.js ./src/layer/leaflet.motion.polyline.js ./src/layer/leaflet.motion.polygon.js ./src/layer/leaflet.motion.group.js ./src/layer/leaflet.motion.seq.js ***!
+  \*****************************************************************************************************************************************************************************************************************************************************/
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
-eval("__webpack_require__(/*! ./src/leaflet.motion.js */\"./src/leaflet.motion.js\");\n__webpack_require__(/*! ./src/leaflet.motion.utils.js */\"./src/leaflet.motion.utils.js\");\n__webpack_require__(/*! ./src/leaflet.motion.easing.js */\"./src/leaflet.motion.easing.js\");\n__webpack_require__(/*! ./src/layer/leaflet.motion.polyline.js */\"./src/layer/leaflet.motion.polyline.js\");\n__webpack_require__(/*! ./src/layer/leaflet.motion.group.js */\"./src/layer/leaflet.motion.group.js\");\nmodule.exports = __webpack_require__(/*! ./src/layer/leaflet.motion.seq.js */\"./src/layer/leaflet.motion.seq.js\");\n\n\n//# sourceURL=webpack:///multi_./src/leaflet.motion.js_./src/leaflet.motion.utils.js_./src/leaflet.motion.easing.js_./src/layer/leaflet.motion.polyline.js_./src/layer/leaflet.motion.group.js_./src/layer/leaflet.motion.seq.js?");
+eval("__webpack_require__(/*! ./src/leaflet.motion.js */\"./src/leaflet.motion.js\");\n__webpack_require__(/*! ./src/leaflet.motion.utils.js */\"./src/leaflet.motion.utils.js\");\n__webpack_require__(/*! ./src/leaflet.motion.easing.js */\"./src/leaflet.motion.easing.js\");\n__webpack_require__(/*! ./src/layer/leaflet.motion.polyline.js */\"./src/layer/leaflet.motion.polyline.js\");\n__webpack_require__(/*! ./src/layer/leaflet.motion.polygon.js */\"./src/layer/leaflet.motion.polygon.js\");\n__webpack_require__(/*! ./src/layer/leaflet.motion.group.js */\"./src/layer/leaflet.motion.group.js\");\nmodule.exports = __webpack_require__(/*! ./src/layer/leaflet.motion.seq.js */\"./src/layer/leaflet.motion.seq.js\");\n\n\n//# sourceURL=webpack:///multi_./src/leaflet.motion.js_./src/leaflet.motion.utils.js_./src/leaflet.motion.easing.js_./src/layer/leaflet.motion.polyline.js_./src/layer/leaflet.motion.polygon.js_./src/layer/leaflet.motion.group.js_./src/layer/leaflet.motion.seq.js?");
 
 /***/ })
 
diff --git a/dist/leaflet.motion.min.js b/dist/leaflet.motion.min.js
index 04086b3..baa0082 100644
--- a/dist/leaflet.motion.min.js
+++ b/dist/leaflet.motion.min.js
@@ -1,9 +1,9 @@
 /*!
  * 
- *  leaflet.motion - v0.1.7 (https://github.com/Igor-Vladyka/leaflet.motion#readme) 
+ *  leaflet.motion - v0.1.8 (https://github.com/Igor-Vladyka/leaflet.motion#readme) 
  *  Animation plugin for Leaflet.js
  *  
  *  MIT (http://www.opensource.org/licenses/mit-license.php)
  *  (c) 2020  Igor Vladyka <igor.vladyka@gmail.com> (https://github.com/Igor-Vladyka/)
  * 
- */!function(t){var n={};function i(e){if(n[e])return n[e].exports;var o=n[e]={i:e,l:!1,exports:{}};return t[e].call(o.exports,o,o.exports,i),o.l=!0,o.exports}i.m=t,i.c=n,i.d=function(t,n,e){i.o(t,n)||Object.defineProperty(t,n,{enumerable:!0,get:e})},i.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},i.t=function(t,n){if(1&n&&(t=i(t)),8&n)return t;if(4&n&&"object"==typeof t&&t&&t.__esModule)return t;var e=Object.create(null);if(i.r(e),Object.defineProperty(e,"default",{enumerable:!0,value:t}),2&n&&"string"!=typeof t)for(var o in t)i.d(e,o,function(n){return t[n]}.bind(null,o));return e},i.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return i.d(n,"a",n),n},i.o=function(t,n){return Object.prototype.hasOwnProperty.call(t,n)},i.p="",i(i.s=0)}([function(t,n,i){i(1),i(2),i(3),i(4),i(5),t.exports=i(6)},function(t,n){L.Motion=L.Motion||{Event:{Started:"motion-started",Paused:"motion-paused",Resumed:"motion-resumed",Section:"motion-section",Ended:"motion-ended"}},L.motion=L.motion||{},L.Motion.Animate={options:{pane:"polymotionPane",attribution:"Leaflet.Motion © "+(new Date).getFullYear()+" Igor Vladyka"},motionOptions:{auto:!1,easing:function(t){return t},speed:0,duration:0},markerOptions:void 0,initialize:function(t,n,i,e){L.Util.setOptions(this,n),this.motionOptions=L.Util.extend({},this.motionOptions,i||{}),this.markerOptions=L.Util.extend({},e||{}),this._bounds=L.latLngBounds(),this._linePoints=this._convertLatLngs(t),L.Motion.Utils.isFlat(this._linePoints)||(this._linePoints=this._linePoints[0]),this._initializeMarker(),this._latlngs=[],L.Util.stamp(this)},addLatLng:function(t,n){return t=L.Motion.Utils.toLatLng(t),this._linePoints.push(t),this._latlngs.length&&this._latlngs.push(t),this},beforeAdd:function(t){t.getPane(this.options.pane)||(t.createPane(this.options.pane).style.zIndex=599),this._renderer=t.getRenderer(this)},onAdd:function(t){if(this._renderer._initPath(this),this._reset(),this._renderer._addPath(this),this.__marker&&this.markerOptions.showMarker&&this.__marker.addTo(t),this.__marker._icon&&this.__marker._icon.children.length){var n=this.__marker._icon.children[0].getAttribute("motion-base");n&&(this.__marker._icon.children[0].style.transform="rotate("+n+"deg)")}return this.motionOptions.auto&&this.motionStart(),this},onRemove:function(t){this.motionStop(),this.__marker&&t.removeLayer(this.__marker),this._renderer._removePath(this)},_motion:function(t){var n=(new Date).getTime()-t,i=1;if(this.motionOptions.duration&&(i=n/this.motionOptions.duration),i<1){i=this.motionOptions.easing(i,n,0,1,this.motionOptions.duration);var e=L.Motion.Utils.interpolateOnLine(this._map,this._linePoints,i);L.Polyline.prototype.addLatLng.call(this,e.latLng),this._drawMarker(e.latLng),this.__ellapsedTime=n,this.animation=L.Util.requestAnimFrame((function(){this._motion(t)}),this)}else this.motionStop(!0)},_drawMarker:function(t){var n=this.getMarker();if(n){var i=n.getLatLng(),e=this._linePoints[0];if(i.lat===e.lat&&i.lng===e.lng)n.addTo(this._map),n.addEventParent(this);else if(n._icon&&n._icon.children.length){var o=n._icon.children[0].getAttribute("motion-base");if(o){var r=0;o&&!isNaN(+o)&&(r=+o),n._icon.children[0].style.transform="rotate(-"+Math.round(L.Motion.Utils.getAngle(i,t)+r)+"deg)"}}n.setLatLng(t)}},_removeMarker:function(t){this.markerOptions&&this.__marker&&(t&&!this.markerOptions.removeOnEnd||this._map.removeLayer(this.__marker))},_initializeMarker:function(){this.markerOptions&&(this.__marker=L.marker(this._linePoints[0],this.markerOptions))},motionStart:function(){return this._map&&!this.animation&&(this.motionOptions.duration||(this.motionOptions.speed?this.motionOptions.duration=L.Motion.Utils.getDuration(this._linePoints,this.motionOptions.speed):this.motionOptions.duration=0),this.setLatLngs([]),this._motion((new Date).getTime()),this.fire(L.Motion.Event.Started,{layer:this},!1)),this},motionStop:function(t){return this.motionPause(),this.setLatLngs(this._linePoints),this.__ellapsedTime=null,this._removeMarker(t),this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this.animation&&(L.Util.cancelAnimFrame(this.animation),this.animation=null,this.fire(L.Motion.Event.Paused,{layer:this},!1)),this},motionResume:function(){return!this.animation&&this.__ellapsedTime&&(this.motionOptions.duration||(this.motionOptions.speed?this.motionOptions.duration=L.Motion.Utils.getDuration(this._linePoints,this.motionOptions.speed):this.motionOptions.duration=0),this._motion((new Date).getTime()-this.__ellapsedTime),this.fire(L.Motion.Event.Resumed,{layer:this},!1)),this},motionToggle:function(){return this.animation?this.__ellapsedTime&&this.motionPause():this.__ellapsedTime?this.motionResume():this.motionStart(),this},motionDuration:function(t){return this.motionOptions.duration=t||0,this},motionSpeed:function(t){return this.motionOptions.speed=t||0,this},getMarker:function(){return this.__marker},getMarkers:function(){return[this.getMarker()]}}},function(t,n){L.Motion.Utils={interpolateOnLine:function(t,n,i){var e=(n=n instanceof L.Polyline?n.getLatLngs():n).length;if(e<2)return null;if(0===(i=Math.max(Math.min(i,1),0)))return{latLng:n[0]instanceof L.LatLng?n[0]:L.latLng(n[0]),predecessor:-1};if(1==i)return{latLng:n[n.length-1]instanceof L.LatLng?n[n.length-1]:L.latLng(n[n.length-1]),predecessor:n.length-2};var o=t.getMaxZoom();o===1/0&&(o=t.getZoom());for(var r=[],a=0,s=0;s<e;s++)r[s]=t.project(n[s],o),s>0&&(a+=r[s-1].distanceTo(r[s]));var u=a*i,h=0,l=0;for(s=0;l<u;s++){var c=r[s],f=r[s+1];h=l,l+=c.distanceTo(f)}if(null==c&&null==f)c=r[0],f=r[1],s=1;var m=l-h!=0?(u-h)/(l-h):0,d=this.interpolateOnPointSegment(c,f,m);return{latLng:t.unproject(d,o),predecessor:s-1}},interpolateOnPointSegment:function(t,n,i){return L.point(t.x*(1-i)+i*n.x,t.y*(1-i)+i*n.y)},distance:function(t){for(var n=0,i=1;i<t.length;i++)n+=t[i].distanceTo(t[i-1]);return n},getDuration:function(t,n){return L.Motion.Utils.distance(t.map((function(t){return L.Motion.Utils.toLatLng(t)})))/(n/3600)},toLatLng:function(t,n,i){return t instanceof L.LatLng?t:L.Util.isArray(t)&&"object"!=typeof t[0]?3===t.length?L.latLng(t[0],t[1],t[2]):2===t.length?L.latLng(t[0],t[1]):null:null==t?t:"object"==typeof t&&"lat"in t?L.latLng(t.lat,"lng"in t?t.lng:t.lon,t.alt):void 0===n?null:L.latLng(t,n,i)},getAngle:function(t,n){var i=180*Math.atan2(n.lat-t.lat,n.lng-t.lng)/Math.PI;return i<0&&(i+=360),i},isFlat:function(t){return!L.Util.isArray(t[0])||"object"!=typeof t[0][0]&&void 0!==t[0][0]}}},function(t,n){L.Motion.Ease={linear:function(t){return t},swing:function(t){return.5-Math.cos(t*Math.PI)/2},easeInQuad:function(t,n,i,e,o){return e*(n/=o)*n+i},easeOutQuad:function(t,n,i,e,o){return-e*(n/=o)*(n-2)+i},easeInOutQuad:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n+i:-e/2*(--n*(n-2)-1)+i},easeInCubic:function(t,n,i,e,o){return e*(n/=o)*n*n+i},easeOutCubic:function(t,n,i,e,o){return e*((n=n/o-1)*n*n+1)+i},easeInOutCubic:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n+i:e/2*((n-=2)*n*n+2)+i},easeInQuart:function(t,n,i,e,o){return e*(n/=o)*n*n*n+i},easeOutQuart:function(t,n,i,e,o){return-e*((n=n/o-1)*n*n*n-1)+i},easeInOutQuart:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n*n+i:-e/2*((n-=2)*n*n*n-2)+i},easeInQuint:function(t,n,i,e,o){return e*(n/=o)*n*n*n*n+i},easeOutQuint:function(t,n,i,e,o){return e*((n=n/o-1)*n*n*n*n+1)+i},easeInOutQuint:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n*n*n+i:e/2*((n-=2)*n*n*n*n+2)+i},easeInSine:function(t,n,i,e,o){return-e*Math.cos(n/o*(Math.PI/2))+e+i},easeOutSine:function(t,n,i,e,o){return e*Math.sin(n/o*(Math.PI/2))+i},easeInOutSine:function(t,n,i,e,o){return-e/2*(Math.cos(Math.PI*n/o)-1)+i},easeInExpo:function(t,n,i,e,o){return 0==n?i:e*Math.pow(2,10*(n/o-1))+i},easeOutExpo:function(t,n,i,e,o){return n==o?i+e:e*(1-Math.pow(2,-10*n/o))+i},easeInOutExpo:function(t,n,i,e,o){return 0==n?i:n==o?i+e:(n/=o/2)<1?e/2*Math.pow(2,10*(n-1))+i:e/2*(2-Math.pow(2,-10*--n))+i},easeInCirc:function(t,n,i,e,o){return-e*(Math.sqrt(1-(n/=o)*n)-1)+i},easeOutCirc:function(t,n,i,e,o){return e*Math.sqrt(1-(n=n/o-1)*n)+i},easeInOutCirc:function(t,n,i,e,o){return(n/=o/2)<1?-e/2*(Math.sqrt(1-n*n)-1)+i:e/2*(Math.sqrt(1-(n-=2)*n)+1)+i},easeInElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(1==(n/=o))return i+e;if(a||(a=.3*o),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return-s*Math.pow(2,10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)+i},easeOutElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(1==(n/=o))return i+e;if(a||(a=.3*o),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return s*Math.pow(2,-10*n)*Math.sin((n*o-r)*(2*Math.PI)/a)+e+i},easeInOutElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(2==(n/=o/2))return i+e;if(a||(a=o*(.3*1.5)),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return n<1?s*Math.pow(2,10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)*-.5+i:s*Math.pow(2,-10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)*.5+e+i},easeInBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),e*(n/=o)*n*((r+1)*n-r)+i},easeOutBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),e*((n=n/o-1)*n*((r+1)*n+r)+1)+i},easeInOutBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),(n/=o/2)<1?e/2*(n*n*((1+(r*=1.525))*n-r))+i:e/2*((n-=2)*n*((1+(r*=1.525))*n+r)+2)+i},easeInBounce:function(t,n,i,e,o){return e-L.Motion.Ease.easeOutBounce(t,o-n,0,e,o)+i},easeOutBounce:function(t,n,i,e,o){return(n/=o)<1/2.75?e*(7.5625*n*n)+i:n<2/2.75?e*(7.5625*(n-=1.5/2.75)*n+.75)+i:n<2.5/2.75?e*(7.5625*(n-=2.25/2.75)*n+.9375)+i:e*(7.5625*(n-=2.625/2.75)*n+.984375)+i},easeInOutBounce:function(t,n,i,e,o){return n<o/2?.5*L.Motion.Ease.easeInBounce(t,2*n,0,e,o)+i:.5*L.Motion.Ease.easeOutBounce(t,2*n-o,0,e,o)+.5*e+i}}},function(t,n){L.Motion.Polyline=L.Polyline.extend(L.Motion.Animate),L.motion.polyline=function(t,n,i,e){return new L.Motion.Polyline(t,n,i,e)}},function(t,n){L.Motion.Group=L.FeatureGroup.extend({options:{pane:L.Motion.Animate.options.pane,attribution:L.Motion.Animate.options.attribution},motionStart:function(){return this.invoke("motionStart"),this.fire(L.Motion.Event.Started,{layer:this},!1),this},motionStop:function(){return this.invoke("motionStop"),this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this.invoke("motionPause"),this.fire(L.Motion.Event.Paused,{layer:this},!1),this},motionResume:function(){return this.invoke("motionResume"),this.fire(L.Motion.Event.Resumed,{layer:this},!1),this},motionToggle:function(){return this.invoke("motionToggle"),this},getMarkers:function(){return this.getLayers().map((function(t){return t.getMarkers()}))}}),L.motion.group=function(t,n){return new L.Motion.Group(t,n)}},function(t,n){L.Motion.Seq=L.Motion.Group.extend({_activeLayer:null,motionStart:function(){var t=this.getFirstLayer();return t&&(this.__prepareStart(),t.motionStart(),this.fire(L.Motion.Event.Started,{layer:this},!1)),this},motionStop:function(){return this.invoke("motionStop"),this._activeLayer=null,this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this._activeLayer&&(this._activeLayer.motionPause(),this.fire(L.Motion.Event.Paused,{layer:this},!1)),this},motionResume:function(){return this._activeLayer&&(this._activeLayer.motionResume(),this.fire(L.Motion.Event.Resumed,{layer:this},!1)),this},motionToggle:function(){return this._activeLayer?this.motionPause():this.motionResume(),this},getFirstLayer:function(){var t=this.getLayers();return t.length?t[0]:null},__prepareStart:function(){var t=this;this.getLayers().forEach((function(n){n.off(L.Motion.Event.Ended,t.__clearActiveLayer__,t),n.on(L.Motion.Event.Ended,t.__clearActiveLayer__,t),n.off(L.Motion.Event.Started,t.__putActiveLayer__,t),n.on(L.Motion.Event.Started,t.__putActiveLayer__,t)}))},__clearActiveLayer__:function(t){this._activeLayer=null;var n=this.getLayers(),i=t.layer._leaflet_id,e=n.filter((function(t){return t._leaflet_id==i}))[0],o=n.indexOf(e)+1;n.length>o?n[o].motionStart():this.fire(L.Motion.Event.Ended,{layer:this},!1)},__putActiveLayer__:function(t){this._activeLayer=t.layer,this.fire(L.Motion.Event.Section,{layer:this._activeLayer},!1)}}),L.motion.seq=function(t,n){return new L.Motion.Seq(t,n)}}]);
\ No newline at end of file
+ */!function(t){var n={};function i(e){if(n[e])return n[e].exports;var o=n[e]={i:e,l:!1,exports:{}};return t[e].call(o.exports,o,o.exports,i),o.l=!0,o.exports}i.m=t,i.c=n,i.d=function(t,n,e){i.o(t,n)||Object.defineProperty(t,n,{enumerable:!0,get:e})},i.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},i.t=function(t,n){if(1&n&&(t=i(t)),8&n)return t;if(4&n&&"object"==typeof t&&t&&t.__esModule)return t;var e=Object.create(null);if(i.r(e),Object.defineProperty(e,"default",{enumerable:!0,value:t}),2&n&&"string"!=typeof t)for(var o in t)i.d(e,o,function(n){return t[n]}.bind(null,o));return e},i.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return i.d(n,"a",n),n},i.o=function(t,n){return Object.prototype.hasOwnProperty.call(t,n)},i.p="",i(i.s=0)}([function(t,n,i){i(1),i(2),i(3),i(4),i(5),i(6),t.exports=i(7)},function(t,n){L.Motion=L.Motion||{Event:{Started:"motion-started",Paused:"motion-paused",Resumed:"motion-resumed",Section:"motion-section",Ended:"motion-ended"}},L.motion=L.motion||{},L.Motion.Animate={options:{pane:"polymotionPane",attribution:"Leaflet.Motion © "+(new Date).getFullYear()+" Igor Vladyka"},motionOptions:{auto:!1,easing:function(t){return t},speed:0,duration:0},markerOptions:void 0,initialize:function(t,n,i,e){L.Util.setOptions(this,n),this.motionOptions=L.Util.extend({},this.motionOptions,i||{}),this.markerOptions=L.Util.extend({},e||{}),this._bounds=L.latLngBounds(),this._linePoints=this._convertLatLngs(t),L.Motion.Utils.isFlat(this._linePoints)||(this._linePoints=this._linePoints[0]),this._initializeMarker(),this._latlngs=[],L.Util.stamp(this)},addLatLng:function(t,n){return t=L.Motion.Utils.toLatLng(t),this._linePoints.push(t),this._latlngs.length&&this._latlngs.push(t),this},beforeAdd:function(t){t.getPane(this.options.pane)||(t.createPane(this.options.pane).style.zIndex=599),this._renderer=t.getRenderer(this)},onAdd:function(t){if(this._renderer._initPath(this),this._reset(),this._renderer._addPath(this),this.__marker&&this.markerOptions.showMarker&&this.__marker.addTo(t),this.__marker._icon&&this.__marker._icon.children.length){var n=this.__marker._icon.children[0].getAttribute("motion-base");n&&(this.__marker._icon.children[0].style.transform="rotate("+n+"deg)")}return this.motionOptions.auto&&this.motionStart(),this},onRemove:function(t){this.motionStop(),this.__marker&&t.removeLayer(this.__marker),this._renderer._removePath(this)},_motion:function(t){var n=(new Date).getTime()-t,i=1;if(this.motionOptions.duration&&(i=n/this.motionOptions.duration),i<1){i=this.motionOptions.easing(i,n,0,1,this.motionOptions.duration);var e=L.Motion.Utils.interpolateOnLine(this._map,this._linePoints,i);L.Polyline.prototype.addLatLng.call(this,e.latLng),this._drawMarker(e.latLng),this.__ellapsedTime=n,this.animation=L.Util.requestAnimFrame((function(){this._motion(t)}),this)}else this.motionStop(!0)},_drawMarker:function(t){var n=this.getMarker();if(n){var i=n.getLatLng(),e=this._linePoints[0];if(i.lat===e.lat&&i.lng===e.lng)n.addTo(this._map),n.addEventParent(this);else if(n._icon&&n._icon.children.length){var o=n._icon.children[0].getAttribute("motion-base");if(o){var r=0;o&&!isNaN(+o)&&(r=+o),n._icon.children[0].style.transform="rotate(-"+Math.round(L.Motion.Utils.getAngle(i,t)+r)+"deg)"}}n.setLatLng(t)}},_removeMarker:function(t){this.markerOptions&&this.__marker&&(t&&!this.markerOptions.removeOnEnd||this._map.removeLayer(this.__marker))},_initializeMarker:function(){this.markerOptions&&(this.__marker=L.marker(this._linePoints[0],this.markerOptions))},motionStart:function(){return this._map&&!this.animation&&(this.motionOptions.duration||(this.motionOptions.speed?this.motionOptions.duration=L.Motion.Utils.getDuration(this._linePoints,this.motionOptions.speed):this.motionOptions.duration=0),this.setLatLngs([]),this._motion((new Date).getTime()),this.fire(L.Motion.Event.Started,{layer:this},!1)),this},motionStop:function(t){return this.motionPause(),this.setLatLngs(this._linePoints),this.__ellapsedTime=null,this._removeMarker(t),this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this.animation&&(L.Util.cancelAnimFrame(this.animation),this.animation=null,this.fire(L.Motion.Event.Paused,{layer:this},!1)),this},motionResume:function(){return!this.animation&&this.__ellapsedTime&&(this.motionOptions.duration||(this.motionOptions.speed?this.motionOptions.duration=L.Motion.Utils.getDuration(this._linePoints,this.motionOptions.speed):this.motionOptions.duration=0),this._motion((new Date).getTime()-this.__ellapsedTime),this.fire(L.Motion.Event.Resumed,{layer:this},!1)),this},motionToggle:function(){return this.animation?this.__ellapsedTime&&this.motionPause():this.__ellapsedTime?this.motionResume():this.motionStart(),this},motionDuration:function(t){return this.motionOptions.duration=t||0,this},motionSpeed:function(t){return this.motionOptions.speed=t||0,this},getMarker:function(){return this.__marker},getMarkers:function(){return[this.getMarker()]}}},function(t,n){L.Motion.Utils={interpolateOnLine:function(t,n,i){var e=(n=n instanceof L.Polyline?n.getLatLngs():n).length;if(e<2)return null;if(0===(i=Math.max(Math.min(i,1),0)))return{latLng:n[0]instanceof L.LatLng?n[0]:L.latLng(n[0]),predecessor:-1};if(1==i)return{latLng:n[n.length-1]instanceof L.LatLng?n[n.length-1]:L.latLng(n[n.length-1]),predecessor:n.length-2};var o=t.getMaxZoom();o===1/0&&(o=t.getZoom());for(var r=[],a=0,s=0;s<e;s++)r[s]=t.project(n[s],o),s>0&&(a+=r[s-1].distanceTo(r[s]));var u=a*i,h=0,l=0;for(s=0;l<u;s++){var c=r[s],f=r[s+1];h=l,l+=c.distanceTo(f)}if(null==c&&null==f)c=r[0],f=r[1],s=1;var m=l-h!=0?(u-h)/(l-h):0,d=this.interpolateOnPointSegment(c,f,m);return{latLng:t.unproject(d,o),predecessor:s-1}},interpolateOnPointSegment:function(t,n,i){return L.point(t.x*(1-i)+i*n.x,t.y*(1-i)+i*n.y)},distance:function(t){for(var n=0,i=1;i<t.length;i++)n+=t[i].distanceTo(t[i-1]);return n},getDuration:function(t,n){return L.Motion.Utils.distance(t.map((function(t){return L.Motion.Utils.toLatLng(t)})))/(n/3600)},toLatLng:function(t,n,i){return t instanceof L.LatLng?t:L.Util.isArray(t)&&"object"!=typeof t[0]?3===t.length?L.latLng(t[0],t[1],t[2]):2===t.length?L.latLng(t[0],t[1]):null:null==t?t:"object"==typeof t&&"lat"in t?L.latLng(t.lat,"lng"in t?t.lng:t.lon,t.alt):void 0===n?null:L.latLng(t,n,i)},getAngle:function(t,n){var i=180*Math.atan2(n.lat-t.lat,n.lng-t.lng)/Math.PI;return i<0&&(i+=360),i},isFlat:function(t){return!L.Util.isArray(t[0])||"object"!=typeof t[0][0]&&void 0!==t[0][0]}}},function(t,n){L.Motion.Ease={linear:function(t){return t},swing:function(t){return.5-Math.cos(t*Math.PI)/2},easeInQuad:function(t,n,i,e,o){return e*(n/=o)*n+i},easeOutQuad:function(t,n,i,e,o){return-e*(n/=o)*(n-2)+i},easeInOutQuad:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n+i:-e/2*(--n*(n-2)-1)+i},easeInCubic:function(t,n,i,e,o){return e*(n/=o)*n*n+i},easeOutCubic:function(t,n,i,e,o){return e*((n=n/o-1)*n*n+1)+i},easeInOutCubic:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n+i:e/2*((n-=2)*n*n+2)+i},easeInQuart:function(t,n,i,e,o){return e*(n/=o)*n*n*n+i},easeOutQuart:function(t,n,i,e,o){return-e*((n=n/o-1)*n*n*n-1)+i},easeInOutQuart:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n*n+i:-e/2*((n-=2)*n*n*n-2)+i},easeInQuint:function(t,n,i,e,o){return e*(n/=o)*n*n*n*n+i},easeOutQuint:function(t,n,i,e,o){return e*((n=n/o-1)*n*n*n*n+1)+i},easeInOutQuint:function(t,n,i,e,o){return(n/=o/2)<1?e/2*n*n*n*n*n+i:e/2*((n-=2)*n*n*n*n+2)+i},easeInSine:function(t,n,i,e,o){return-e*Math.cos(n/o*(Math.PI/2))+e+i},easeOutSine:function(t,n,i,e,o){return e*Math.sin(n/o*(Math.PI/2))+i},easeInOutSine:function(t,n,i,e,o){return-e/2*(Math.cos(Math.PI*n/o)-1)+i},easeInExpo:function(t,n,i,e,o){return 0==n?i:e*Math.pow(2,10*(n/o-1))+i},easeOutExpo:function(t,n,i,e,o){return n==o?i+e:e*(1-Math.pow(2,-10*n/o))+i},easeInOutExpo:function(t,n,i,e,o){return 0==n?i:n==o?i+e:(n/=o/2)<1?e/2*Math.pow(2,10*(n-1))+i:e/2*(2-Math.pow(2,-10*--n))+i},easeInCirc:function(t,n,i,e,o){return-e*(Math.sqrt(1-(n/=o)*n)-1)+i},easeOutCirc:function(t,n,i,e,o){return e*Math.sqrt(1-(n=n/o-1)*n)+i},easeInOutCirc:function(t,n,i,e,o){return(n/=o/2)<1?-e/2*(Math.sqrt(1-n*n)-1)+i:e/2*(Math.sqrt(1-(n-=2)*n)+1)+i},easeInElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(1==(n/=o))return i+e;if(a||(a=.3*o),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return-s*Math.pow(2,10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)+i},easeOutElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(1==(n/=o))return i+e;if(a||(a=.3*o),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return s*Math.pow(2,-10*n)*Math.sin((n*o-r)*(2*Math.PI)/a)+e+i},easeInOutElastic:function(t,n,i,e,o){var r=1.70158,a=0,s=e;if(0==n)return i;if(2==(n/=o/2))return i+e;if(a||(a=o*(.3*1.5)),s<Math.abs(e)){s=e;r=a/4}else r=a/(2*Math.PI)*Math.asin(e/s);return n<1?s*Math.pow(2,10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)*-.5+i:s*Math.pow(2,-10*(n-=1))*Math.sin((n*o-r)*(2*Math.PI)/a)*.5+e+i},easeInBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),e*(n/=o)*n*((r+1)*n-r)+i},easeOutBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),e*((n=n/o-1)*n*((r+1)*n+r)+1)+i},easeInOutBack:function(t,n,i,e,o,r){return null==r&&(r=1.70158),(n/=o/2)<1?e/2*(n*n*((1+(r*=1.525))*n-r))+i:e/2*((n-=2)*n*((1+(r*=1.525))*n+r)+2)+i},easeInBounce:function(t,n,i,e,o){return e-L.Motion.Ease.easeOutBounce(t,o-n,0,e,o)+i},easeOutBounce:function(t,n,i,e,o){return(n/=o)<1/2.75?e*(7.5625*n*n)+i:n<2/2.75?e*(7.5625*(n-=1.5/2.75)*n+.75)+i:n<2.5/2.75?e*(7.5625*(n-=2.25/2.75)*n+.9375)+i:e*(7.5625*(n-=2.625/2.75)*n+.984375)+i},easeInOutBounce:function(t,n,i,e,o){return n<o/2?.5*L.Motion.Ease.easeInBounce(t,2*n,0,e,o)+i:.5*L.Motion.Ease.easeOutBounce(t,2*n-o,0,e,o)+.5*e+i}}},function(t,n){L.Motion.Polyline=L.Polyline.extend(L.Motion.Animate),L.motion.polyline=function(t,n,i,e){return new L.Motion.Polyline(t,n,i,e)}},function(t,n){L.Motion.Polygon=L.Polygon.extend(L.Motion.Animate),L.motion.polygon=function(t,n,i,e){return new L.Motion.Polygon(t,n,i,e)}},function(t,n){L.Motion.Group=L.FeatureGroup.extend({options:{pane:L.Motion.Animate.options.pane,attribution:L.Motion.Animate.options.attribution},motionStart:function(){return this.invoke("motionStart"),this.fire(L.Motion.Event.Started,{layer:this},!1),this},motionStop:function(){return this.invoke("motionStop"),this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this.invoke("motionPause"),this.fire(L.Motion.Event.Paused,{layer:this},!1),this},motionResume:function(){return this.invoke("motionResume"),this.fire(L.Motion.Event.Resumed,{layer:this},!1),this},motionToggle:function(){return this.invoke("motionToggle"),this},getMarkers:function(){return this.getLayers().map((function(t){return t.getMarkers()}))}}),L.motion.group=function(t,n){return new L.Motion.Group(t,n)}},function(t,n){L.Motion.Seq=L.Motion.Group.extend({_activeLayer:null,motionStart:function(){var t=this.getFirstLayer();return t&&(this.__prepareStart(),t.motionStart(),this.fire(L.Motion.Event.Started,{layer:this},!1)),this},motionStop:function(){return this.invoke("motionStop"),this._activeLayer=null,this.fire(L.Motion.Event.Ended,{layer:this},!1),this},motionPause:function(){return this._activeLayer&&(this._activeLayer.motionPause(),this.fire(L.Motion.Event.Paused,{layer:this},!1)),this},motionResume:function(){return this._activeLayer&&(this._activeLayer.motionResume(),this.fire(L.Motion.Event.Resumed,{layer:this},!1)),this},motionToggle:function(){return this._activeLayer?this.motionPause():this.motionResume(),this},getFirstLayer:function(){var t=this.getLayers();return t.length?t[0]:null},__prepareStart:function(){var t=this;this.getLayers().forEach((function(n){n.off(L.Motion.Event.Ended,t.__clearActiveLayer__,t),n.on(L.Motion.Event.Ended,t.__clearActiveLayer__,t),n.off(L.Motion.Event.Started,t.__putActiveLayer__,t),n.on(L.Motion.Event.Started,t.__putActiveLayer__,t)}))},__clearActiveLayer__:function(t){this._activeLayer=null;var n=this.getLayers(),i=t.layer._leaflet_id,e=n.filter((function(t){return t._leaflet_id==i}))[0],o=n.indexOf(e)+1;n.length>o?n[o].motionStart():this.fire(L.Motion.Event.Ended,{layer:this},!1)},__putActiveLayer__:function(t){this._activeLayer=t.layer,this.fire(L.Motion.Event.Section,{layer:this._activeLayer},!1)}}),L.motion.seq=function(t,n){return new L.Motion.Seq(t,n)}}]);
\ No newline at end of file
diff --git a/package.json b/package.json
index cfb4470..eb3ab25 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "leaflet.motion",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "keywords": [
     "leaflet.js",
     "browser",
diff --git a/webpack.config.js b/webpack.config.js
index c8e716b..1cf440a 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -11,7 +11,7 @@ var pluginFiles = [
 	'./src/leaflet.motion.utils.js',
 	'./src/leaflet.motion.easing.js',
 	'./src/layer/leaflet.motion.polyline.js',
-	//'./src/layer/leaflet.motion.polygon.js',
+	'./src/layer/leaflet.motion.polygon.js',
 	'./src/layer/leaflet.motion.group.js',
 	'./src/layer/leaflet.motion.seq.js'
 ];