function LatLng(c,d){this.lat=c;this.lng=d;this.distance=LatLngDistance;this.toOSRef=LatLngToOSRef;this.toUTMRef=LatLngToUTMRef;this.WGS84ToOSGB36=WGS84ToOSGB36;this.OSGB36ToWGS84=OSGB36ToWGS84;this.toString=LatLngToString}function LatLngToString(){return"("+this.lat+", "+this.lng+")"}function OSRef(c,d){this.easting=c;this.northing=d;this.toLatLng=OSRefToLatLng;this.toString=OSRefToString;this.toSixFigureString=OSRefToSixFigureString}function OSRefToString(){return"("+this.easting+", "+this.northing+")"}function OSRefToSixFigureString(){var n=Math.floor(this.easting/100000);var q=Math.floor(this.northing/100000);var m="";if(q<5){if(n<5){m="S"}else{m="T"}}else{if(q<10){if(n<5){m="N"}else{m="O"}}else{m="H"}}var r="";var l=65+((4-(q%5))*5)+(n%5);var p=l;if(l>=73){l++}r=chr(l);var e=Math.floor((this.easting-(100000*n))/100);var o=Math.floor((this.northing-(100000*q))/100);var s=e;if(e<100){s="0"+s}if(e<10){s="0"+s}var t=o;if(o<100){t="0"+t}if(o<10){t="0"+t}return m+r+s+t}function UTMRef(e,f,g,h){this.easting=e;this.northing=f;this.latZone=g;this.lngZone=h;this.toLatLng=UTMRefToLatLng;this.toString=UTMRefToString}function UTMRefToString(){return this.lngZone+this.latZone+" "+this.easting+" "+this.northing}function RefEll(d,c){this.maj=d;this.min=c;this.ecc=((d*d)-(c*c))/(d*d)}function sinSquared(b){return Math.sin(b)*Math.sin(b)}function cosSquared(b){return Math.cos(b)*Math.cos(b)}function tanSquared(b){return Math.tan(b)*Math.tan(b)}function sec(b){return 1/Math.cos(b)}function deg2rad(b){return b*(Math.PI/180)}function rad2deg(b){return b*(180/Math.PI)}function chr(d){var c=d.toString(16);if(c.length==1){c="0"+c}c="%"+c;return unescape(c)}function ord(h){var c=h.charAt(0);var g;for(g=0;g<256;++g){var f=g.toString(16);if(f.length==1){f="0"+f}f="%"+f;f=unescape(f);if(f==c){break}}return g}function LatLngDistance(o){var d=6366.707;var w=deg2rad(this.lat);var t=deg2rad(o.lat);var r=deg2rad(this.lng);var x=deg2rad(o.lng);var y=d*Math.cos(r)*Math.sin(w);var p=d*Math.sin(r)*Math.sin(w);var u=d*Math.cos(w);var z=d*Math.cos(x)*Math.sin(t);var q=d*Math.sin(x)*Math.sin(t);var v=d*Math.cos(t);var s=Math.sqrt((y-z)*(y-z)+(p-q)*(p-q)+(u-v)*(u-v));return s}function OSGB36ToWGS84(){var s=new RefEll(6377563.396,6356256.909);var aa=s.maj;var a=s.min;var O=s.ecc;var W=deg2rad(this.lat);var T=deg2rad(this.lng);var b=aa/(Math.sqrt(1-O*sinSquared(W)));var M=0;var H=(b+M)*Math.cos(W)*Math.cos(T);var Z=(b+M)*Math.cos(W)*Math.sin(T);var Q=((1-O)*b+M)*Math.sin(W);var Y=446.448;var i=-124.157;var x=542.06;var V=-0.0000204894;var S=deg2rad(0.00004172222);var U=deg2rad(0.00006861111);var v=deg2rad(0.00023391666);var R=Y+(H*(1+V))+(-S*Z)+(U*Q);var ab=i+(v*H)+(Z*(1+V))+(-S*Q);var P=x+(-U*H)+(S*Z)+(Q*(1+V));var X=new RefEll(6378137,6356752.3141);aa=X.maj;a=X.min;O=X.ecc;var L=rad2deg(Math.atan(ab/R));var z=Math.sqrt((R*R)+(ab*ab));var p=Math.atan(P/(z*(1-O)));for(var N=1;N<10;N++){b=aa/(Math.sqrt(1-O*sinSquared(p)));phiN1=Math.atan((P+(O*b*Math.sin(p)))/z);p=phiN1}var y=rad2deg(p);this.lat=y;this.lng=L}function WGS84ToOSGB36(){var S=new RefEll(6378137,6356752.3141);var aa=S.maj;var a=S.min;var O=S.ecc;var W=deg2rad(this.lat);var T=deg2rad(this.lng);var b=aa/(Math.sqrt(1-O*sinSquared(W)));var M=0;var s=(b+M)*Math.cos(W)*Math.cos(T);var Z=(b+M)*Math.cos(W)*Math.sin(T);var Q=((1-O)*b+M)*Math.sin(W);var Y=-446.448;var i=124.157;var x=-542.06;var H=0.0000204894;var X=deg2rad(-0.00004172222);var U=deg2rad(-0.00006861111);var v=deg2rad(-0.00023391666);var V=Y+(s*(1+H))+(-X*Z)+(U*Q);var ab=i+(v*s)+(Z*(1+H))+(-X*Q);var P=x+(-U*s)+(X*Z)+(Q*(1+H));var R=new RefEll(6377563.396,6356256.909);aa=R.maj;a=R.min;O=R.ecc;var L=rad2deg(Math.atan(ab/V));var z=Math.sqrt((V*V)+(ab*ab));var p=Math.atan(P/(z*(1-O)));for(var N=1;N<10;N++){b=aa/(Math.sqrt(1-O*sinSquared(p)));phiN1=Math.atan((P+(O*b*Math.sin(p)))/z);p=phiN1}var y=rad2deg(p);this.lat=y;this.lng=L}function OSRefToLatLng(){var R=new RefEll(6377563.396,6356256.909);var I=0.9996012717;var v=-100000;var P=400000;var b=deg2rad(49);var Z=deg2rad(-2);var M=R.maj;var F=R.min;var S=R.ecc;var W=0;var a=0;var H=this.easting;var V=this.northing;var J=(M-F)/(M+F);var U=0;var Q=((V-v)/(M*I))+b;do{U=(F*I)*(((1+J+((5/4)*J*J)+((5/4)*J*J*J))*(Q-b))-(((3*J)+(3*J*J)+((21/8)*J*J*J))*Math.sin(Q-b)*Math.cos(Q+b))+((((15/8)*J*J)+((15/8)*J*J*J))*Math.sin(2*(Q-b))*Math.cos(2*(Q+b)))-(((35/24)*J*J*J)*Math.sin(3*(Q-b))*Math.cos(3*(Q+b))));Q+=(V-v-U)/(M*I)}while((V-v-U)>=0.001);var N=M*I*Math.pow(1-S*sinSquared(Q),-0.5);var Y=M*I*(1-S)*Math.pow(1-S*sinSquared(Q),-1.5);var L=(N/Y)-1;var E=Math.tan(Q)/(2*Y*N);var O=(Math.tan(Q)/(24*Y*Math.pow(N,3)))*(5+(3*tanSquared(Q))+L-(9*tanSquared(Q)*L));var G=(Math.tan(Q)/(720*Y*Math.pow(N,5)))*(61+(90*tanSquared(Q))+(45*tanSquared(Q)*tanSquared(Q)));var X=sec(Q)/N;var T=(sec(Q)/(6*N*N*N))*((N/Y)+(2*tanSquared(Q)));var K=(sec(Q)/(120*Math.pow(N,5)))*(5+(28*tanSquared(Q))+(24*tanSquared(Q)*tanSquared(Q)));var n=(sec(Q)/(5040*Math.pow(N,7)))*(61+(662*tanSquared(Q))+(1320*tanSquared(Q)*tanSquared(Q))+(720*tanSquared(Q)*tanSquared(Q)*tanSquared(Q)));W=Q-(E*Math.pow(H-P,2))+(O*Math.pow(H-P,4))-(G*Math.pow(H-P,6));a=Z+(X*(H-P))-(T*Math.pow(H-P,3))+(K*Math.pow(H-P,5))-(n*Math.pow(H-P,7));return new LatLng(rad2deg(W),rad2deg(a))}function LatLngToOSRef(){var N=new RefEll(6377563.396,6356256.909);var v=0.9996012717;var n=-100000;var M=400000;var F=deg2rad(49);var W=deg2rad(-2);var J=N.maj;var a=N.min;var P=N.ecc;var U=deg2rad(this.lat);var H=deg2rad(this.lng);var E=0;var R=0;var D=(J-a)/(J+a);var L=J*v*Math.pow(1-P*sinSquared(U),-0.5);var V=J*v*(1-P)*Math.pow(1-P*sinSquared(U),-1.5);var b=(L/V)-1;var Q=(a*v)*(((1+D+((5/4)*D*D)+((5/4)*D*D*D))*(U-F))-(((3*D)+(3*D*D)+((21/8)*D*D*D))*Math.sin(U-F)*Math.cos(U+F))+((((15/8)*D*D)+((15/8)*D*D*D))*Math.sin(2*(U-F))*Math.cos(2*(U+F)))-(((35/24)*D*D*D)*Math.sin(3*(U-F))*Math.cos(3*(U+F))));var O=Q+n;var S=(L/2)*Math.sin(U)*Math.cos(U);var G=(L/24)*Math.sin(U)*Math.pow(Math.cos(U),3)*(5-tanSquared(U)+(9*b));var I=(L/720)*Math.sin(U)*Math.pow(Math.cos(U),5)*(61-(58*tanSquared(U))+Math.pow(Math.tan(U),4));var X=L*Math.cos(U);var T=(L/6)*Math.pow(Math.cos(U),3)*((L/V)-tanSquared(U));var K=(L/120)*Math.pow(Math.cos(U),5)*(5-(18*tanSquared(U))+(Math.pow(Math.tan(U),4))+(14*b)-(58*tanSquared(U)*b));R=O+(S*Math.pow(H-W,2))+(G*Math.pow(H-W,4))+(I*Math.pow(H-W,6));E=M+(X*(H-W))+(T*Math.pow(H-W,3))+(K*Math.pow(H-W,5));return new OSRef(E,R)}function UTMRefToLatLng(){var L=new RefEll(6378137,6356752.314);var r=0.9996;var d=L.maj;var J=L.ecc;var I=J/(1-J);var M=(1-Math.sqrt(1-J))/(1+Math.sqrt(1-J));var G=this.easting-500000;var K=this.northing;var N=this.lngZone;var O=this.latZone;var P=(N-1)*6-180+3;if((ord(O)-ord("N"))<0){K-=10000000}var y=K/r;var c=y/(d*(1-J/4-3*J*J/64-5*Math.pow(J,3)/256));var x=c+(3*M/2-27*Math.pow(M,3)/32)*Math.sin(2*c)+(21*M*M/16-55*Math.pow(M,4)/32)*Math.sin(4*c)+(151*Math.pow(M,3)/96)*Math.sin(6*c);var F=d/Math.sqrt(1-J*Math.sin(x)*Math.sin(x));var H=Math.tan(x)*Math.tan(x);var t=I*Math.cos(x)*Math.cos(x);var a=d*(1-J)/Math.pow(1-J*Math.sin(x)*Math.sin(x),1.5);var n=G/(F*r);var m=(x-(F*Math.tan(x)/a)*(n*n/2-(5+(3*H)+(10*t)-(4*t*t)-(9*I))*Math.pow(n,4)/24+(61+(90*H)+(298*t)+(45*H*H)-(252*I)-(3*t*t))*Math.pow(n,6)/720))*(180/Math.PI);var E=P+((n-(1+2*H+t)*Math.pow(n,3)/6+(5-(2*t)+(28*H)-(3*t*t)+(8*I)+(24*H*H))*Math.pow(n,5)/120)/Math.cos(x))*(180/Math.PI);return new LatLng(m,E)}function LatLngToUTMRef(){var H=new RefEll(6378137,6356752.314);var c=0.9996;var n=H.maj;var F=H.ecc;var I=this.lng;var C=this.lat;var z=C*(Math.PI/180);var G=I*(Math.PI/180);var a=Math.floor((I+180)/6)+1;if(C>=56&&C<64&&I>=3&&I<12){a=32}if(C>=72&&C<84){if(I>=0&&I<9){a=31}else{if(I>=9&&I<21){a=33}else{if(I>=21&&I<33){a=35}else{if(I>=33&&I<42){a=37}}}}}var L=(a-1)*6-180+3;var y=L*(Math.PI/180);var x=getUTMLatitudeZoneLetter(C);ePrimeSquared=(F)/(1-F);var t=n/Math.sqrt(1-F*Math.sin(z)*Math.sin(z));var E=Math.tan(z)*Math.tan(z);var A=ePrimeSquared*Math.cos(z)*Math.cos(z);var B=Math.cos(z)*(G-y);var J=n*((1-F/4-3*F*F/64-5*F*F*F/256)*z-(3*F/8+3*F*F/32+45*F*F*F/1024)*Math.sin(2*z)+(15*F*F/256+45*F*F*F/1024)*Math.sin(4*z)-(35*F*F*F/3072)*Math.sin(6*z));var D=(c*t*(B+(1-E+A)*Math.pow(B,3)/6+(5-18*E+E*E+72*A-58*ePrimeSquared)*Math.pow(B,5)/120)+500000);var K=(c*(J+t*Math.tan(z)*(B*B/2+(5-E+(9*A)+(4*A*A))*Math.pow(B,4)/24+(61-(58*E)+(E*E)+(600*A)-(330*ePrimeSquared))*Math.pow(B,6)/720)));if(C<0){K+=10000000}return new UTMRef(D,K,x,a)}function getOSRefFromSixFigureReference(j){var k=j.substring(0,1);var l=j.substring(1,2);var m=parseInt(j.substring(2,5),10)*100;var i=parseInt(j.substring(5,8),10)*100;if(k=="H"){i+=1000000}else{if(k=="N"){i+=500000}else{if(k=="O"){i+=500000;m+=500000}else{if(k=="T"){m+=500000}}}}var n=ord(l);if(n>73){n--}var o=((n-65)%5)*100000;var p=(4-Math.floor((n-65)/5))*100000;return new OSRef(m+o,i+p)}function getUTMLatitudeZoneLetter(b){if((84>=b)&&(b>=72)){return"X"}else{if((72>b)&&(b>=64)){return"W"}else{if((64>b)&&(b>=56)){return"V"}else{if((56>b)&&(b>=48)){return"U"}else{if((48>b)&&(b>=40)){return"T"}else{if((40>b)&&(b>=32)){return"S"}else{if((32>b)&&(b>=24)){return"R"}else{if((24>b)&&(b>=16)){return"Q"}else{if((16>b)&&(b>=8)){return"P"}else{if((8>b)&&(b>=0)){return"N"}else{if((0>b)&&(b>=-8)){return"M"}else{if((-8>b)&&(b>=-16)){return"L"}else{if((-16>b)&&(b>=-24)){return"K"}else{if((-24>b)&&(b>=-32)){return"J"}else{if((-32>b)&&(b>=-40)){return"H"}else{if((-40>b)&&(b>=-48)){return"G"}else{if((-48>b)&&(b>=-56)){return"F"}else{if((-56>b)&&(b>=-64)){return"E"}else{if((-64>b)&&(b>=-72)){return"D"}else{if((-72>b)&&(b>=-80)){return"C"}else{return"Z"}}}}}}}}}}}}}}}}}}}}};