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