2 lines
5.2 KiB
JavaScript
2 lines
5.2 KiB
JavaScript
!function(){"use strict";var l={}.hasOwnProperty,u=[].slice;(function(){var t,o;if(null!=this.L)return this.OverlappingMarkerSpiderfier=((t=e.prototype).VERSION="0.2.6",o=2*Math.PI,t.keepSpiderfied=!1,t.nearbyDistance=20,t.circleSpiralSwitchover=9,t.circleFootSeparation=25,t.circleStartAngle=o/12,t.spiralFootSeparation=28,t.spiralLengthStart=11,t.spiralLengthFactor=5,t.legWeight=1.5,t.legColors={usual:"#222",highlighted:"#f00"},t.initMarkerArrays=function(){return this.markers=[],this.markerListeners=[]},t.addMarker=function(t){var e,r;return null!=t._oms||(t._oms=!0,r=this,e=function(){return r.spiderListener(t)},t.addEventListener("click",e),this.markerListeners.push(e),this.markers.push(t)),this},t.getMarkers=function(){return this.markers.slice(0)},t.removeMarker=function(t){var e,r;return null!=t._omsData&&this.unspiderfy(),(e=this.arrIndexOf(this.markers,t))<0||(r=this.markerListeners.splice(e,1)[0],t.removeEventListener("click",r),delete t._oms,this.markers.splice(e,1)),this},t.clearMarkers=function(){var t,e,r,i,n,s;for(this.unspiderfy(),t=e=0,r=(s=this.markers).length;e<r;t=++e)i=s[t],n=this.markerListeners[t],i.removeEventListener("click",n),delete i._oms;return this.initMarkerArrays(),this},t.addListener=function(t,e){var r;return(null!=(r=this.listeners)[t]?r[t]:r[t]=[]).push(e),this},t.removeListener=function(t,e){var r;return(r=this.arrIndexOf(this.listeners[t],e))<0||this.listeners[t].splice(r,1),this},t.clearListeners=function(t){return this.listeners[t]=[],this},t.trigger=function(){var t,e,r,i,n,s,a,h;for(e=arguments[0],t=2<=arguments.length?u.call(arguments,1):[],h=[],i=0,n=(a=null!=(s=this.listeners[e])?s:[]).length;i<n;i++)r=a[i],h.push(r.apply(null,t));return h},t.generatePtsCircle=function(t,e){var r,i,n,s,a,h,l;for(a=this.circleFootSeparation*(2+t)/o,i=o/t,l=[],n=s=0,h=t;0<=h?s<h:h<s;n=0<=h?++s:--s)r=this.circleStartAngle+n*i,l.push(new L.Point(e.x+a*Math.cos(r),e.y+a*Math.sin(r)));return l},t.generatePtsSpiral=function(t,e){var r,i,n,s,a,h,l;for(s=this.spiralLengthStart,l=[],i=n=r=0,h=t;0<=h?n<h:h<n;i=0<=h?++n:--n)r+=this.spiralFootSeparation/s+5e-4*i,a=new L.Point(e.x+s*Math.cos(r),e.y+s*Math.sin(r)),s+=o*this.spiralLengthFactor/r,l.push(a);return l},t.spiderListener=function(t){var e,r,i,n,s,a,h,l,o,u;if((a=null!=t._omsData)&&this.keepSpiderfied||this.unspiderfy(),a)return this.trigger("click",t);for(h=[],l=[],o=this.nearbyDistance*this.nearbyDistance,s=this.map.latLngToLayerPoint(t.getLatLng()),e=0,r=(u=this.markers).length;e<r;e++)i=u[e],this.map.hasLayer(i)&&(n=this.map.latLngToLayerPoint(i.getLatLng()),this.ptDistanceSq(n,s)<o?h.push({marker:i,markerPt:n}):l.push(i));return 1===h.length?this.trigger("click",t):this.spiderfy(h,l)},t.makeHighlightListeners=function(t){return{highlight:(r=this,function(){return t._omsData.leg.setStyle({color:r.legColors.highlighted})}),unhighlight:(e=this,function(){return t._omsData.leg.setStyle({color:e.legColors.usual})})};var e,r},t.spiderfy=function(i,t){var e,n,s,a,h,l,o,u,g,r,c;return this.spiderfying=!0,r=i.length,e=this.ptAverage(function(){var t,e,r;for(r=[],t=0,e=i.length;t<e;t++)o=i[t],r.push(o.markerPt);return r}()),a=r>=this.circleSpiralSwitchover?this.generatePtsSpiral(r,e).reverse():this.generatePtsCircle(r,e),c=function(){var t,e,r;for(r=[],t=0,e=a.length;t<e;t++)s=a[t],n=this.map.layerPointToLatLng(s),g=this.minExtract(i,function(e){return function(t){return e.ptDistanceSq(t.markerPt,s)}}(this)),l=g.marker,h=new L.Polyline([l.getLatLng(),n],{color:this.legColors.usual,weight:this.legWeight,clickable:!1}),this.map.addLayer(h),l._omsData={usualPosition:l.getLatLng(),leg:h},this.legColors.highlighted!==this.legColors.usual&&(u=this.makeHighlightListeners(l),l._omsData.highlightListeners=u,l.addEventListener("mouseover",u.highlight),l.addEventListener("mouseout",u.unhighlight)),l.setLatLng(n),l.setZIndexOffset(l.options.zIndexOffset+1e6),r.push(l);return r}.call(this),delete this.spiderfying,this.spiderfied=!0,this.trigger("spiderfy",c,t)},t.unspiderfy=function(t){var e,r,i,n,s,a,h;if(null==t&&(t=null),null==this.spiderfied)return this;for(this.unspiderfying=!0,h=[],s=[],e=0,r=(a=this.markers).length;e<r;e++)null!=(i=a[e])._omsData?(this.map.removeLayer(i._omsData.leg),i!==t&&i.setLatLng(i._omsData.usualPosition),i.setZIndexOffset(i.options.zIndexOffset-1e6),null!=(n=i._omsData.highlightListeners)&&(i.removeEventListener("mouseover",n.highlight),i.removeEventListener("mouseout",n.unhighlight)),delete i._omsData,h.push(i)):s.push(i);return delete this.unspiderfying,delete this.spiderfied,this.trigger("unspiderfy",h,s),this},t.ptDistanceSq=function(t,e){var r,i;return(r=t.x-e.x)*r+(i=t.y-e.y)*i},t.ptAverage=function(t){var e,r,i,n,s,a;for(s=a=0,e=0,r=t.length;e<r;e++)s+=(n=t[e]).x,a+=n.y;return i=t.length,new L.Point(s/i,a/i)},t.minExtract=function(t,e){var r,i,n,s,a,h;for(n=s=0,a=t.length;s<a;n=++s)h=e(t[n]),(null==r||h<i)&&(i=h,r=n);return t.splice(r,1)[0]},t.arrIndexOf=function(t,e){var r,i,n;if(null!=t.indexOf)return t.indexOf(e);for(r=i=0,n=t.length;i<n;r=++i)if(t[r]===e)return r;return-1},e);function e(t,e){var r,i,n,s,a,h;for(n in this.map=t,null==e&&(e={}),e)l.call(e,n)&&(h=e[n],this[n]=h);for(this.initMarkerArrays(),this.listeners={},i=0,s=(a=["click","zoomend"]).length;i<s;i++)r=a[i],this.map.addEventListener(r,function(t){return function(){return t.unspiderfy()}}(this))}}).call(window)}();
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