@loaders.gl/shapefile/dist/dist.min.js

Loader for the Shapefile Format

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ya(t,e,a){if(e===X)return{x:t.x-a[0],y:t.y-a[1],z:t.z-a[2]};if(e===Q){var i=a[0],s=a[1],r=a[2],n=a[3],h=a[4],o=a[5],l=a[6],u=(t.x-i)/l,f=(t.y-s)/l,c=(t.z-r)/l;return{x:u+o*f-h*c,y:-o*u+f+n*c,z:h*u-n*f+c}}}function ae(t){return t===X||t===Q}function xa(t,e,a){return pa(t,e)||t.datum_type===St||e.datum_type===St||t.es===e.es&&t.a===e.a&&!ae(t.datum_type)&&!ae(e.datum_type)?a:(a=te(a,t.es,t.a),ae(t.datum_type)&&(a=va(a,t.datum_type,t.datum_params)),ae(e.datum_type)&&(a=ya(a,e.datum_type,e.datum_params)),ee(a,e.es,e.a,e.b))}function Ae(t,e,a){var i=a.x,s=a.y,r=a.z||0,n,h,o,l={};for(o=0;o<3;o++)if(!(e&&o===2&&a.z===void 0))switch(o===0?(n=i,"ew".indexOf(t.axis[o])!==-1?h="x":h="y"):o===1?(n=s,"ns".indexOf(t.axis[o])!==-1?h="y":h="x"):(n=r,h="z"),t.axis[o]){case"e":case"w":case"n":case"s":l[h]=n;break;case"u":a[h]!==void 0&&(l.z=n);break;case"d":a[h]!==void 0&&(l.z=-n);break;default:return null}return l}function se(t){var e={x:t[0],y:t[1]};return t.length>2&&(e.z=t[2]),t.length>3&&(e.m=t[3]),e}function _a(t){ga(t.x),ga(t.y)}function ga(t){if(typeof Number.isFinite=="function"){if(Number.isFinite(t))return;throw new TypeError("coordinates must be finite numbers")}if(typeof t!="number"||t!==t||!isFinite(t))throw new TypeError("coordinates must be finite numbers")}function _i(t,e){return(t.datum.datum_type===X||t.datum.datum_type===Q)&&e.datumCode!=="WGS84"||(e.datum.datum_type===X||e.datum.datum_type===Q)&&t.datumCode!=="WGS84"}function dt(t,e,a){var i;if(Array.isArray(a)&&(a=se(a)),_a(a),t.datum&&e.datum&&_i(t,e)&&(i=new lt("WGS84"),a=dt(t,i,a),t=i),t.axis!=="enu"&&(a=Ae(t,!1,a)),t.projName==="longlat")a={x:a.x*L,y:a.y*L,z:a.z||0};else if(t.to_meter&&(a={x:a.x*t.to_meter,y:a.y*t.to_meter,z:a.z||0}),a=t.inverse(a),!a)return;return t.from_greenwich&&(a.x+=t.from_greenwich),a=xa(t.datum,e.datum,a),e.from_greenwich&&(a={x:a.x-e.from_greenwich,y:a.y,z:a.z||0}),e.projName==="longlat"?a={x:a.x*V,y:a.y*V,z:a.z||0}:(a=e.forward(a),e.to_meter&&(a={x:a.x/e.to_meter,y:a.y/e.to_meter,z:a.z||0})),e.axis!=="enu"?Ae(e,!0,a):a}var ba=lt("WGS84");function Pe(t,e,a){var i,s,r;return Array.isArray(a)?(i=dt(t,e,a)||{x:NaN,y:NaN},a.length>2?typeof t.name<"u"&&t.name==="geocent"||typeof e.name<"u"&&e.name==="geocent"?typeof i.z=="number"?[i.x,i.y,i.z].concat(a.splice(3)):[i.x,i.y,a[2]].concat(a.splice(3)):[i.x,i.y].concat(a.splice(2)):[i.x,i.y]):(s=dt(t,e,a),r=Object.keys(a),r.length===2||r.forEach(function(n){if(typeof t.name<"u"&&t.name==="geocent"||typeof e.name<"u"&&e.name==="geocent"){if(n==="x"||n==="y"||n==="z")return}else if(n==="x"||n==="y")return;s[n]=a[n]}),s)}function Ea(t){return t instanceof lt?t:t.oProj?t.oProj:lt(t)}function bi(t,e,a){t=Ea(t);var i=!1,s;return typeof e>"u"?(e=t,t=ba,i=!0):(typeof e.x<"u"||Array.isArray(e))&&(a=e,e=t,t=ba,i=!0),e=Ea(e),a?Pe(t,e,a):(s={forward:function(r){return Pe(t,e,r)},inverse:function(r){return Pe(e,t,r)}},i&&(s.oProj=e),s)}var H=bi;var Ia=6,Pa="AJSAJS",Na="AFAFAF",_t=65,z=73,W=79,Lt=86,Tt=90,Sa={forward:Se,inverse:Ei,toPoint:Re};function Se(t,e){return e=e||5,Pi(Ii({lat:t[1],lon:t[0]}),e)}function Ei(t){var e=we(wa(t.toUpperCase()));return e.lat&&e.lon?[e.lon,e.lat,e.lon,e.lat]:[e.left,e.bottom,e.right,e.top]}function Re(t){var e=we(wa(t.toUpperCase()));return e.lat&&e.lon?[e.lon,e.lat]:[(e.left+e.right)/2,(e.top+e.bottom)/2]}function Ne(t){return t*(Math.PI/180)}function Aa(t){return 180*(t/Math.PI)}function Ii(t){var e=t.lat,a=t.lon,i=6378137,s=.00669438,r=.9996,n,h,o,l,u,f,c,M=Ne(e),d=Ne(a),y,x;x=Math.floor((a+180)/6)+1,a===180&&(x=60),e>=56&&e<64&&a>=3&&a<12&&(x=32),e>=72&&e<84&&(a>=0&&a<9?x=31:a>=9&&a<21?x=33:a>=21&&a<33?x=35:a>=33&&a<42&&(x=37)),n=(x-1)*6-180+3,y=Ne(n),h=s/(1-s),o=i/Math.sqrt(1-s*Math.sin(M)*Math.sin(M)),l=Math.tan(M)*Math.tan(M),u=h*Math.cos(M)*Math.cos(M),f=Math.cos(M)*(d-y),c=i*((1-s/4-3*s*s/64-5*s*s*s/256)*M-(3*s/8+3*s*s/32+45*s*s*s/1024)*Math.sin(2*M)+(15*s*s/256+45*s*s*s/1024)*Math.sin(4*M)-35*s*s*s/3072*Math.sin(6*M));var g=r*o*(f+(1-l+u)*f*f*f/6+(5-18*l+l*l+72*u-58*h)*f*f*f*f*f/120)+5e5,b=r*(c+o*Math.tan(M)*(f*f/2+(5-l+9*u+4*u*u)*f*f*f*f/24+(61-58*l+l*l+600*u-330*h)*f*f*f*f*f*f/720));return e<0&&(b+=1e7),{northing:Math.round(b),easting:Math.round(g),zoneNumber:x,zoneLetter:Ai(e)}}function we(t){var e=t.northing,a=t.easting,i=t.zoneLetter,s=t.zoneNumber;if(s<0||s>60)return null;var r=.9996,n=6378137,h=.00669438,o,l=(1-Math.sqrt(1-h))/(1+Math.sqrt(1-h)),u,f,c,M,d,y,x,g,b,E=a-5e5,S=e;i<"N"&&(S-=1e7),x=(s-1)*6-180+3,o=h/(1-h),y=S/r,g=y/(n*(1-h/4-3*h*h/64-5*h*h*h/256)),b=g+(3*l/2-27*l*l*l/32)*Math.sin(2*g)+(21*l*l/16-55*l*l*l*l/32)*Math.sin(4*g)+151*l*l*l/96*Math.sin(6*g),u=n/Math.sqrt(1-h*Math.sin(b)*Math.sin(b)),f=Math.tan(b)*Math.tan(b),c=o*Math.cos(b)*Math.cos(b),M=n*(1-h)/Math.pow(1-h*Math.sin(b)*Math.sin(b),1.5),d=E/(u*r);var A=b-u*Math.tan(b)/M*(d*d/2-(5+3*f+10*c-4*c*c-9*o)*d*d*d*d/24+(61+90*f+298*c+45*f*f-252*o-3*c*c)*d*d*d*d*d*d/720);A=Aa(A);var P=(d-(1+2*f+c)*d*d*d/6+(5-2*c+28*f-3*c*c+8*o+24*f*f)*d*d*d*d*d/120)/Math.cos(b);P=x+Aa(P);var O;if(t.accuracy){var C=we({northing:t.northing+t.accuracy,easting:t.easting+t.accuracy,zoneLetter:t.zoneLetter,zoneNumber:t.zoneNumber});O={top:C.lat,right:C.lon,bottom:A,left:P}}else O={lat:A,lon:P};return O}function Ai(t){var e="Z";return 84>=t&&t>=72?e="X":72>t&&t>=64?e="W":64>t&&t>=56?e="V":56>t&&t>=48?e="U":48>t&&t>=40?e="T":40>t&&t>=32?e="S":32>t&&t>=24?e="R":24>t&&t>=16?e="Q":16>t&&t>=8?e="P":8>t&&t>=0?e="N":0>t&&t>=-8?e="M":-8>t&&t>=-16?e="L":-16>t&&t>=-24?e="K":-24>t&&t>=-32?e="J":-32>t&&t>=-40?e="H":-40>t&&t>=-48?e="G":-48>t&&t>=-56?e="F":-56>t&&t>=-64?e="E":-64>t&&t>=-72?e="D":-72>t&&t>=-80&&(e="C"),e}function Pi(t,e){var a="00000"+t.easting,i="00000"+t.northing;return t.zoneNumber+t.zoneLetter+Ni(t.easting,t.northing,t.zoneNumber)+a.substr(a.length-5,e)+i.substr(i.length-5,e)}function Ni(t,e,a){var i=Ra(a),s=Math.floor(t/1e5),r=Math.floor(e/1e5)%20;return Si(s,r,i)}function Ra(t){var e=t%Ia;return e===0&&(e=Ia),e}function Si(t,e,a){var i=a-1,s=Pa.charCodeAt(i),r=Na.charCodeAt(i),n=s+t-1,h=r+e,o=!1;n>Tt&&(n=n-Tt+_t-1,o=!0),(n===z||s<z&&n>z||(n>z||s<z)&&o)&&n++,(n===W||s<W&&n>W||(n>W||s<W)&&o)&&(n++,n===z&&n++),n>Tt&&(n=n-Tt+_t-1),h>Lt?(h=h-Lt+_t-1,o=!0):o=!1,(h===z||r<z&&h>z||(h>z||r<z)&&o)&&h++,(h===W||r<W&&h>W||(h>W||r<W)&&o)&&(h++,h===z&&h++),h>Lt&&(h=h-Lt+_t-1);var l=String.fromCharCode(n)+String.fromCharCode(h);return l}function wa(t){if(t&&t.length===0)throw"MGRSPoint coverting from nothing";for(var e=t.length,a=null,i="",s,r=0;!/[A-Z]/.test(s=t.charAt(r));){if(r>=2)throw"MGRSPoint bad conversion from: "+t;i+=s,r++}var n=parseInt(i,10);if(r===0||r+3>e)throw"MGRSPoint bad conversion from: "+t;var h=t.charAt(r++);if(h<="A"||h==="B"||h==="Y"||h>="Z"||h==="I"||h==="O")throw"MGRSPoint zone letter "+h+" not handled: "+t;a=t.substring(r,r+=2);for(var o=Ra(n),l=Ri(a.charAt(0),o),u=wi(a.charAt(1),o);u<Ci(h);)u+=2e6;var f=e-r;if(f%2!==0)throw`MGRSPoint has to have an even number 
of digits after the zone letter and two 100km letters - front 
half for easting meters, second half for 
northing meters`+t;var c=f/2,M=0,d=0,y,x,g,b,E;return c>0&&(y=1e5/Math.pow(10,c),x=t.substring(r,r+c),M=parseFloat(x)*y,g=t.substring(r+c),d=parseFloat(g)*y),b=M+l,E=d+u,{easting:b,northing:E,zoneLetter:h,zoneNumber:n,accuracy:y}}function Ri(t,e){for(var a=Pa.charCodeAt(e-1),i=1e5,s=!1;a!==t.charCodeAt(0);){if(a++,a===z&&a++,a===W&&a++,a>Tt){if(s)throw"Bad character: "+t;a=_t,s=!0}i+=1e5}return i}function wi(t,e){if(t>"V")throw"MGRSPoint given invalid Northing "+t;for(var a=Na.charCodeAt(e-1),i=0,s=!1;a!==t.charCodeAt(0);){if(a++,a===z&&a++,a===W&&a++,a>Lt){if(s)throw"Bad character: "+t;a=_t,s=!0}i+=1e5}return i}function Ci(t){var e;switch(t){case"C":e=11e5;break;case"D":e=2e6;break;case"E":e=28e5;break;case"F":e=37e5;break;case"G":e=46e5;break;case"H":e=55e5;break;case"J":e=64e5;break;case"K":e=73e5;break;case"L":e=82e5;break;case"M":e=91e5;break;case"N":e=0;break;case"P":e=8e5;break;case"Q":e=17e5;break;case"R":e=26e5;break;case"S":e=35e5;break;case"T":e=44e5;break;case"U":e=53e5;break;case"V":e=62e5;break;case"W":e=7e6;break;case"X":e=79e5;break;default:e=-1}if(e>=0)return e;throw"Invalid zone letter: "+t}function bt(t,e,a){if(!(this instanceof bt))return new bt(t,e,a);if(Array.isArray(t))this.x=t[0],this.y=t[1],this.z=t[2]||0;else if(typeof t=="object")this.x=t.x,this.y=t.y,this.z=t.z||0;else if(typeof t=="string"&&typeof e>"u"){var i=t.split(",");this.x=parseFloat(i[0],10),this.y=parseFloat(i[1],10),this.z=parseFloat(i[2],10)||0}else this.x=t,this.y=e,this.z=a||0;console.warn("proj4.Point will be removed in version 3, use proj4.toPoint")}bt.fromMGRS=function(t){return new bt(Re(t))};bt.prototype.toMGRS=function(t){return Se([this.x,this.y],t)};var Ca=bt;var Li=1,Ti=.25,La=.046875,Ta=.01953125,Da=.01068115234375,Di=.75,Oi=.46875,Bi=.013020833333333334,Gi=.007120768229166667,Fi=.3645833333333333,qi=.005696614583333333,zi=.3076171875;function ie(t){var e=[];e[0]=Li-t*(Ti+t*(La+t*(Ta+t*Da))),e[1]=t*(Di-t*(La+t*(Ta+t*Da)));var a=t*t;return e[2]=a*(Oi-t*(Bi+t*Gi)),a*=t,e[3]=a*(Fi-t*qi),e[4]=a*t*zi,e}function pt(t,e,a,i){return a*=e,e*=e,i[0]*t-a*(i[1]+e*(i[2]+e*(i[3]+e*i[4])))}var ji=20;function re(t,e,a){for(var i=1/(1-e),s=t,r=ji;r;--r){var n=Math.sin(s),h=1-e*n*n;if(h=(pt(s,n,Math.cos(s),a)-t)*(h*Math.sqrt(h))*i,s-=h,Math.abs(h)<p)return s}return s}function ki(){this.x0=this.x0!==void 0?this.x0:0,this.y0=this.y0!==void 0?this.y0:0,this.long0=this.long0!==void 0?this.long0:0,this.lat0=this.lat0!==void 0?this.lat0:0,this.es&&(this.en=ie(this.es),this.ml0=pt(this.lat0,Math.sin(this.lat0),Math.cos(this.lat0),this.en))}function Hi(t){var e=t.x,a=t.y,i=v(e-this.long0),s,r,n,h=Math.sin(a),o=Math.cos(a);if(this.es){var u=o*i,f=Math.pow(u,2),c=this.ep2*Math.pow(o,2),M=Math.pow(c,2),d=Math.abs(o)>p?Math.tan(a):0,y=Math.pow(d,2),x=Math.pow(y,2);s=1-this.es*Math.pow(h,2),u=u/Math.sqrt(s);var g=pt(a,h,o,this.en);r=this.a*(this.k0*u*(1+f/6*(1-y+c+f/20*(5-18*y+x+14*c-58*y*c+f/42*(61+179*x-x*y-479*y)))))+this.x0,n=this.a*(this.k0*(g-this.ml0+h*i*u/2*(1+f/12*(5-y+9*c+4*M+f/30*(61+x-58*y+270*c-330*y*c+f/56*(1385+543*x-x*y-3111*y))))))+this.y0}else{var l=o*Math.sin(i);if(Math.abs(Math.abs(l)-1)<p)return 93;if(r=.5*this.a*this.k0*Math.log((1+l)/(1-l))+this.x0,n=o*Math.cos(i)/Math.sqrt(1-Math.pow(l,2)),l=Math.abs(n),l>=1){if(l-1>p)return 93;n=0}else n=Math.acos(n);a<0&&(n=-n),n=this.a*this.k0*(n-this.lat0)+this.y0}return t.x=r,t.y=n,t}function Ui(t){var e,a,i,s,r=(t.x-this.x0)*(1/this.a),n=(t.y-this.y0)*(1/this.a);if(this.es)if(e=this.ml0+n/this.k0,a=re(e,this.es,this.en),Math.abs(a)<m){var f=Math.sin(a),c=Math.cos(a),M=Math.abs(c)>p?Math.tan(a):0,d=this.ep2*Math.pow(c,2),y=Math.pow(d,2),x=Math.pow(M,2),g=Math.pow(x,2);e=1-this.es*Math.pow(f,2);var b=r*Math.sqrt(e)/this.k0,E=Math.pow(b,2);e=e*M,i=a-e*E/(1-this.es)*.5*(1-E/12*(5+3*x-9*d*x+d-4*y-E/30*(61+90*x-252*d*x+45*g+46*d-E/56*(1385+3633*x+4095*g+1574*g*x)))),s=v(this.long0+b*(1-E/6*(1+2*x+d-E/20*(5+28*x+24*g+8*d*x+6*d-E/42*(61+662*x+1320*g+720*g*x))))/c)}else i=m*tt(n),s=0;else{var h=Math.exp(r/this.k0),o=.5*(h-1/h),l=this.lat0+n/this.k0,u=Math.cos(l);e=Math.sqrt((1-Math.pow(u,2))/(1+Math.pow(o,2))),i=Math.asin(e),n<0&&(i=-i),o===0&&u===0?s=0:s=v(Math.atan2(o,u)+this.long0)}return t.x=s,t.y=i,t}var Wi=["Transverse_Mercator","Transverse Mercator","tmerc"],Oa={init:ki,forward:Hi,inverse:Ui,names:Wi};function ne(t){var e=Math.exp(t);return e=(e-1/e)/2,e}function Dt(t,e){t=Math.abs(t),e=Math.abs(e);var a=Math.max(t,e),i=Math.min(t,e)/(a||1);return a*Math.sqrt(1+Math.pow(i,2))}function Ba(t){var e=1+t,a=e-1;return a===0?t:t*Math.log(e)/a}function Ga(t){var e=Math.abs(t);return e=Ba(e*(1+e/(Dt(1,e)+1))),t<0?-e:e}function he(t,e){for(var a=2*Math.cos(2*e),i=t.length-1,s=t[i],r=0,n;--i>=0;)n=-r+a*s+t[i],r=s,s=n;return e+n*Math.sin(2*e)}function Fa(t,e){for(var a=2*Math.cos(e),i=t.length-1,s=t[i],r=0,n;--i>=0;)n=-r+a*s+t[i],r=s,s=n;return Math.sin(e)*n}function qa(t){var e=Math.exp(t);return e=(e+1/e)/2,e}function Ce(t,e,a){for(var i=Math.sin(e),s=Math.cos(e),r=ne(a),n=qa(a),h=2*s*n,o=-2*i*r,l=t.length-1,u=t[l],f=0,c=0,M=0,d,y;--l>=0;)d=c,y=f,c=u,f=M,u=-d+h*c-o*f+t[l],M=-y+o*c+h*f;return h=i*n,o=s*r,[h*u-o*M,h*M+o*u]}function Ji(){if(this.es===void 0||this.es<=0)throw new Error("incorrect elliptical usage");this.x0=this.x0!==void 0?this.x0:0,this.y0=this.y0!==void 0?this.y0:0,this.long0=this.long0!==void 0?this.long0:0,this.lat0=this.lat0!==void 0?this.lat0:0,this.cgb=[],this.cbg=[],this.utg=[],this.gtu=[];var t=this.es/(1+Math.sqrt(1-this.es)),e=t/(2-t),a=e;this.cgb[0]=e*(2+e*(-2/3+e*(-2+e*(116/45+e*(26/45+e*(-2854/675)))))),this.cbg[0]=e*(-2+e*(2/3+e*(4/3+e*(-82/45+e*(32/45+e*(4642/4725)))))),a=a*e,this.cgb[1]=a*(7/3+e*(-8/5+e*(-227/45+e*(2704/315+e*(2323/945))))),this.cbg[1]=a*(5/3+e*(-16/15+e*(-13/9+e*(904/315+e*(-1522/945))))),a=a*e,this.cgb[2]=a*(56/15+e*(-136/35+e*(-1262/105+e*(73814/2835)))),this.cbg[2]=a*(-26/15+e*(34/21+e*(8/5+e*(-12686/2835)))),a=a*e,this.cgb[3]=a*(4279/630+e*(-332/35+e*(-399572/14175))),this.cbg[3]=a*(1237/630+e*(-12/5+e*(-24832/14175))),a=a*e,this.cgb[4]=a*(4174/315+e*(-144838/6237)),this.cbg[4]=a*(-734/315+e*(109598/31185)),a=a*e,this.cgb[5]=a*(601676/22275),this.cbg[5]=a*(444337/155925),a=Math.pow(e,2),this.Qn=this.k0/(1+e)*(1+a*(1/4+a*(1/64+a/256))),this.utg[0]=e*(-.5+e*(2/3+e*(-37/96+e*(1/360+e*(81/512+e*(-96199/604800)))))),this.gtu[0]=e*(.5+e*(-2/3+e*(5/16+e*(41/180+e*(-127/288+e*(7891/37800)))))),this.utg[1]=a*(-1/48+e*(-1/15+e*(437/1440+e*(-46/105+e*(1118711/3870720))))),this.gtu[1]=a*(13/48+e*(-3/5+e*(557/1440+e*(281/630+e*(-1983433/1935360))))),a=a*e,this.utg[2]=a*(-17/480+e*(37/840+e*(209/4480+e*(-5569/90720)))),this.gtu[2]=a*(61/240+e*(-103/140+e*(15061/26880+e*(167603/181440)))),a=a*e,this.utg[3]=a*(-4397/161280+e*(11/504+e*(830251/7257600))),this.gtu[3]=a*(49561/161280+e*(-179/168+e*(6601661/7257600))),a=a*e,this.utg[4]=a*(-4583/161280+e*(108847/3991680)),this.gtu[4]=a*(34729/80640+e*(-3418889/1995840)),a=a*e,this.utg[5]=a*(-20648693/638668800),this.gtu[5]=a*(212378941/319334400);var i=he(this.cbg,this.lat0);this.Zb=-this.Qn*(i+Fa(this.gtu,2*i))}function Xi(t){var e=v(t.x-this.long0),a=t.y;a=he(this.cbg,a);var i=Math.sin(a),s=Math.cos(a),r=Math.sin(e),n=Math.cos(e);a=Math.atan2(i,n*s),e=Math.atan2(r*s,Dt(i,s*n)),e=Ga(Math.tan(e));var h=Ce(this.gtu,2*a,2*e);a=a+h[0],e=e+h[1];var o,l;return Math.abs(e)<=2.623395162778?(o=this.a*(this.Qn*e)+this.x0,l=this.a*(this.Qn*a+this.Zb)+this.y0):(o=1/0,l=1/0),t.x=o,t.y=l,t}function Qi(t){var e=(t.x-this.x0)*(1/this.a),a=(t.y-this.y0)*(1/this.a);a=(a-this.Zb)/this.Qn,e=e/this.Qn;var i,s;if(Math.abs(e)<=2.623395162778){var r=Ce(this.utg,2*a,2*e);a=a+r[0],e=e+r[1],e=Math.atan(ne(e));var n=Math.sin(a),h=Math.cos(a),o=Math.sin(e),l=Math.cos(e);a=Math.atan2(n*l,Dt(o,l*h)),e=Math.atan2(o,l*h),i=v(e+this.long0),s=he(this.cgb,a)}else i=1/0,s=1/0;return t.x=i,t.y=s,t}var Vi=["Extended_Transverse_Mercator","Extended Transverse Mercator","etmerc"],Et={init:Ji,forward:Xi,inverse:Qi,names:Vi};function za(t,e){if(t===void 0){if(t=Math.floor((v(e)+Math.PI)*30/Math.PI)+1,t<0)return 0;if(t>60)return 60}return t}var Ki="etmerc";function Yi(){var t=za(this.zone,this.long0);if(t===void 0)throw new Error("unknown utm zone");this.lat0=0,this.long0=(6*Math.abs(t)-183)*L,this.x0=5e5,this.y0=this.utmSouth?1e7:0,this.k0=.9996,Et.init.apply(this),this.forward=Et.forward,this.inverse=Et.inverse}var Zi=["Universal Transverse Mercator System","utm"],ja={init:Yi,names:Zi,dependsOn:Ki};function oe(t,e){return Math.pow((1-t)/(1+t),e)}var $i=20;function tr(){var t=Math.sin(this.lat0),e=Math.cos(this.lat0);e*=e,this.rc=Math.sqrt(1-this.es)/(1-this.es*t*t),this.C=Math.sqrt(1+this.es*e*e/(1-this.es)),this.phic0=Math.asin(t/this.C),this.ratexp=.5*this.C*this.e,this.K=Math.tan(.5*this.phic0+I)/(Math.pow(Math.tan(.5*this.lat0+I),this.C)*oe(this.e*t,this.ratexp))}function er(t){var e=t.x,a=t.y;return t.y=2*Math.atan(this.K*Math.pow(Math.tan(.5*a+I),this.C)*oe(this.e*Math.sin(a),this.ratexp))-m,t.x=this.C*e,t}function ar(t){for(var e=1e-14,a=t.x/this.C,i=t.y,s=Math.pow(Math.tan(.5*i+I)/this.K,1/this.C),r=$i;r>0&&(i=2*Math.atan(s*oe(this.e*Math.sin(t.y),-.5*this.e))-m,!(Math.abs(i-t.y)<e));--r)t.y=i;return r?(t.x=a,t.y=i,t):null}var sr=["gauss"],le={init:tr,forward:er,inverse:ar,names:sr};function ir(){le.init.apply(this),this.rc&&(this.sinc0=Math.sin(this.phic0),this.cosc0=Math.cos(this.phic0),this.R2=2*this.rc,this.title||(this.title="Oblique Stereographic Alternative"))}function rr(t){var e,a,i,s;return t.x=v(t.x-this.long0),le.forward.apply(this,[t]),e=Math.sin(t.y),a=Math.cos(t.y),i=Math.cos(t.x),s=this.k0*this.R2/(1+this.sinc0*e+this.cosc0*a*i),t.x=s*a*Math.sin(t.x),t.y=s*(this.cosc0*e-this.sinc0*a*i),t.x=this.a*t.x+this.x0,t.y=this.a*t.y+this.y0,t}function nr(t){var e,a,i,s,r;if(t.x=(t.x-this.x0)/this.a,t.y=(t.y-this.y0)/this.a,t.x/=this.k0,t.y/=this.k0,r=Math.sqrt(t.x*t.x+t.y*t.y)){var n=2*Math.atan2(r,this.R2);e=Math.sin(n),a=Math.cos(n),s=Math.asin(a*this.sinc0+t.y*e*this.cosc0/r),i=Math.atan2(t.x*e,r*this.cosc0*a-t.y*this.sinc0*e)}else s=this.phic0,i=0;return t.x=i,t.y=s,le.inverse.apply(this,[t]),t.x=v(t.x+this.long0),t}var hr=["Stereographic_North_Pole","Oblique_Stereographic","Polar_Stereographic","sterea","Oblique Stereographic Alternative","Double_Stereographic"],ka={init:ir,forward:rr,inverse:nr,names:hr};function or(t,e,a){return e*=a,Math.tan(.5*(m+t))*Math.pow((1-e)/(1+e),.5*a)}function lr(){this.coslat0=Math.cos(this.lat0),this.sinlat0=Math.sin(this.lat0),this.sphere?this.k0===1&&!isNaN(this.lat_ts)&&Math.abs(this.coslat0)<=p&&(this.k0=.5*(1+tt(this.lat0)*Math.sin(this.lat_ts))):(Math.abs(this.coslat0)<=p&&(this.lat0>0?this.con=1:this.con=-1),this.cons=Math.sqrt(Math.pow(1+this.e,1+this.e)*Math.pow(1-this.e,1-this.e)),this.k0===1&&!isNaN(this.lat_ts)&&Math.abs(this.coslat0)<=p&&(this.k0=.5*this.cons*B(this.e,Math.sin(this.lat_ts),Math.cos(this.lat_ts))/F(this.e,this.con*this.lat_ts,this.con*Math.sin(this.lat_ts))),this.ms1=B(this.e,this.sinlat0,this.coslat0),this.X0=2*Math.atan(this.ssfn_(this.lat0,this.sinlat0,this.e))-m,this.cosX0=Math.cos(this.X0),this.sinX0=Math.sin(this.X0))}function fr(t){var e=t.x,a=t.y,i=Math.sin(a),s=Math.cos(a),r,n,h,o,l,u,f=v(e-this.long0);return Math.abs(Math.abs(e-this.long0)-Math.PI)<=p&&Math.abs(a+this.lat0)<=p?(t.x=NaN,t.y=NaN,t):this.sphere?(r=2*this.k0/(1+this.sinlat0*i+this.coslat0*s*Math.cos(f)),t.x=this.a*r*s*Math.sin(f)+this.x0,t.y=this.a*r*(this.coslat0*i-this.sinlat0*s*Math.cos(f))+this.y0,t):(n=2*Math.atan(this.ssfn_(a,i,this.e))-m,o=Math.cos(n),h=Math.sin(n),Math.abs(this.coslat0)<=p?(l=F(this.e,a*this.con,this.con*i),u=2*this.a*this.k0*l/this.cons,t.x=this.x0+u*Math.sin(e-this.long0),t.y=this.y0-this.con*u*Math.cos(e-this.long0),t):(Math.abs(this.sinlat0)<p?(r=2*this.a*this.k0/(1+o*Math.cos(f)),t.y=r*h):(r=2*this.a*t