https://www.married2electric.com/wp-content/cache/min/1/wp-content…/lib/cheap-ruler.js?ver=1791390964

1jQuery(function($){function cheapRuler(lat,units){return new CheapRuler(lat,units)}
2var factors=cheapRuler.units={kilometers:1,miles:1000/1609.344,nauticalmiles:1000/1852,meters:1000,metres:1000,yards:1000/0.9144,feet:1000/0.3048,inches:1000/0.0254};cheapRuler.fromTile=function(y,z,units){var n=Math.PI*(1-2*(y+0.5)/Math.pow(2,z));var lat=Math.atan(0.5*(Math.exp(n)-Math.exp(-n)))*180/Math.PI;return new CheapRuler(lat,units)};function CheapRuler(lat,units){if(lat===undefined)throw new Error('No latitude given.');if(units&&!factors[units])throw new Error('Unknown unit '+units+'. Use one of: '+Object.keys(factors).join(', '));var m=units?factors[units]:1;var cos=Math.cos(lat*Math.PI/180);var cos2=2*cos*cos-1;var cos3=2*cos*cos2-cos;var cos4=2*cos*cos3-cos2;var cos5=2*cos*cos4-cos3;this.kx=m*(111.41513*cos-0.09455*cos3+0.00012*cos5);this.ky=m*(111.13209-0.56605*cos2+0.0012*cos4)}
3window.CheapRuler=CheapRuler;window.cheapRuler=cheapRuler;CheapRuler.prototype={distance:function(a,b){var dx=(a[0]-b[0])*this.kx;var dy=(a[1]-b[1])*this.ky;return Math.sqrt(dx*dx+dy*dy)},bearing:function(a,b){var dx=(b[0]-a[0])*this.kx;var dy=(b[1]-a[1])*this.ky;if(!dx&&!dy)return 0;var bearing=Math.atan2(dx,dy)*180/Math.PI;if(bearing>180)bearing-=360;return bearing},destination:function(p,dist,bearing){var a=bearing*Math.PI/180;return this.offset(p,Math.sin(a)*dist,Math.cos(a)*dist)},offset:function(p,dx,dy){return[p[0]+dx/this.kx,p[1]+dy/this.ky]},lineDistance:function(points){var total=0;for(var i=0;i<points.length-1;i++){total+=this.distance(points[i],points[i+1])}
4return total},area:function(polygon){var sum=0;for(var i=0;i<polygon.length;i++){var ring=polygon[i];for(var j=0,len=ring.length,k=len-1;j<len;k=j++){sum+=(ring[j][0]-ring[k][0])*(ring[j][1]+ring[k][1])*(i?-1:1)}}
5return(Math.abs(sum)/2)*this.kx*this.ky},along:function(line,dist){var sum=0;if(dist<=0)return line[0];for(var i=0;i<line.length-1;i++){var p0=line[i];var p1=line[i+1];var d=this.distance(p0,p1);sum+=d;if(sum>dist)return interpolate(p0,p1,(dist-(sum-d))/d)}
6return line[line.length-1]},pointOnLine:function(line,p){var minDist=Infinity;var minX,minY,minI,minT;for(var i=0;i<line.length-1;i++){var x=line[i][0];var y=line[i][1];var dx=(line[i+1][0]-x)*this.kx;var dy=(line[i+1][1]-y)*this.ky;if(dx!==0||dy!==0){var t=((p[0]-x)*this.kx*dx+(p[1]-y)*this.ky*dy)/(dx*dx+dy*dy);if(t>1){x=line[i+1][0];y=line[i+1][1]}else if(t>0){x+=(dx/this.kx)*t;y+=(dy/this.ky)*t}}
7dx=(p[0]-x)*this.kx;dy=(p[1]-y)*this.ky;var sqDist=dx*dx+dy*dy;if(sqDist<minDist){minDist=sqDist;minX=x;minY=y;minI=i;minT=t}}
8return{point:[minX,minY],index:minI,t:Math.max(0,Math.min(1,minT))}},lineSlice:function(start,stop,line){var p1=this.pointOnLine(line,start);var p2=this.pointOnLine(line,stop);if(p1.index>p2.index||(p1.index===p2.index&&p1.t>p2.t)){var tmp=p1;p1=p2;p2=tmp}
9var slice=[p1.point];var l=p1.index+1;var r=p2.index;if(!equals(line[l],slice[0])&&l<=r)
10slice.push(line[l]);for(var i=l+1;i<=r;i++){slice.push(line[i])}
11if(!equals(line[r],p2.point))
12slice.push(p2.point);return slice},lineSliceAlong:function(start,stop,line){var sum=0;var slice=[];for(var i=0;i<line.length-1;i++){var p0=line[i];var p1=line[i+1];var d=this.distance(p0,p1);sum+=d;if(sum>start&&slice.length===0){slice.push(interpolate(p0,p1,(start-(sum-d))/d))}
13if(sum>=stop){slice.push(interpolate(p0,p1,(stop-(sum-d))/d));return slice}
14if(sum>start)slice.push(p1)}
15return slice},bufferPoint:function(p,buffer){var v=buffer/this.ky;var h=buffer/this.kx;return[p[0]-h,p[1]-v,p[0]+h,p[1]+v]},bufferBBox:function(bbox,buffer){var v=buffer/this.ky;var h=buffer/this.kx;return[bbox[0]-h,bbox[1]-v,bbox[2]+h,bbox[3]+v]},insideBBox:function(p,bbox){return p[0]>=bbox[0]&&p[0]<=bbox[2]&&p[1]>=bbox[1]&&p[1]<=bbox[3]}};function equals(a,b){return a[0]===b[0]&&a[1]===b[1]}
16function interpolate(a,b,t){var dx=b[0]-a[0];var dy=b[1]-a[1];return[a[0]+dx*t,a[1]+dy*t]}})