8 lines
639 KiB
JavaScript
8 lines
639 KiB
JavaScript
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/**
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* @license
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* Latitude/longitude spherical geodesy formulae taken from
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* http://www.movable-type.co.uk/scripts/latlong.html
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* Licensed under CC-BY-3.0.
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*/var Wt=6371008.8;function Kt(t,e,i){var r=i||Wt,n=Vt(t[1]),o=Vt(e[1]),s=(o-n)/2,a=Vt(e[0]-t[0])/2,h=Math.sin(s)*Math.sin(s)+Math.sin(a)*Math.sin(a)*Math.cos(n)*Math.cos(o);return 2*r*Math.atan2(Math.sqrt(h),Math.sqrt(1-h))}function Ht(t,e){for(var i=0,r=0,n=t.length;r<n-1;++r)i+=Kt(t[r],t[r+1],e);return i}function Zt(t,e){for(var i=0,r=t.length,n=t[r-1][0],o=t[r-1][1],s=0;s<r;s++){var a=t[s][0],h=t[s][1];i+=Vt(a-n)*(2+Math.sin(Vt(o))+Math.sin(Vt(h))),n=a,o=h}return i*e*e/2}function qt(t,e,i,r){var n=r||Wt,o=Vt(t[1]),s=Vt(t[0]),a=e/n,h=Math.asin(Math.sin(o)*Math.cos(a)+Math.cos(o)*Math.sin(a)*Math.cos(i));return[Bt(s+Math.atan2(Math.sin(i)*Math.sin(a)*Math.cos(o),Math.cos(a)-Math.sin(o)*Math.sin(h))),Bt(h)]}var Jt={DEGREES:"degrees",FEET:"ft",METERS:"m",PIXELS:"pixels",TILE_PIXELS:"tile-pixels",USFEET:"us-ft"},Qt={};Qt[Jt.DEGREES]=2*Math.PI*6370997/360,Qt[Jt.FEET]=.3048,Qt[Jt.METERS]=1,Qt[Jt.USFEET]=1200/3937;var $t=Jt,te=function(t){this.code_=t.code,this.units_=t.units,this.extent_=void 0!==t.extent?t.extent:null,this.worldExtent_=void 0!==t.worldExtent?t.worldExtent:null,this.axisOrientation_=void 0!==t.axisOrientation?t.axisOrientation:"enu",this.global_=void 0!==t.global&&t.global,this.canWrapX_=!(!this.global_||!this.extent_),this.getPointResolutionFunc_=t.getPointResolution,this.defaultTileGrid_=null,this.metersPerUnit_=t.metersPerUnit};te.prototype.canWrapX=function(){return this.canWrapX_},te.prototype.getCode=function(){return this.code_},te.prototype.getExtent=function(){return this.extent_},te.prototype.getUnits=function(){return this.units_},te.prototype.getMetersPerUnit=function(){return this.metersPerUnit_||Qt[this.units_]},te.prototype.getWorldExtent=function(){return this.worldExtent_},te.prototype.getAxisOrientation=function(){return this.axisOrientation_},te.prototype.isGlobal=function(){return this.global_},te.prototype.setGlobal=function(t){this.global_=t,this.canWrapX_=!(!t||!this.extent_)},te.prototype.getDefaultTileGrid=function(){return this.defaultTileGrid_},te.prototype.setDefaultTileGrid=function(t){this.defaultTileGrid_=t},te.prototype.setExtent=function(t){this.extent_=t,this.canWrapX_=!(!this.global_||!t)},te.prototype.setWorldExtent=function(t){this.worldExtent_=t},te.prototype.setGetPointResolution=function(t){this.getPointResolutionFunc_=t},te.prototype.getPointResolutionFunc=function(){return this.getPointResolutionFunc_};var ee=te,ie=6378137,re=Math.PI*ie,ne=[-re,-re,re,re],oe=[-180,-85,180,85],se=function(t){function e(e){t.call(this,{code:e,units:$t.METERS,extent:ne,global:!0,worldExtent:oe,getPointResolution:function(t,e){return t/jt(e[1]/ie)}})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(ee),ae=[new se("EPSG:3857"),new se("EPSG:102100"),new se("EPSG:102113"),new se("EPSG:900913"),new se("urn:ogc:def:crs:EPSG:6.18:3:3857"),new se("urn:ogc:def:crs:EPSG::3857"),new se("http://www.opengis.net/gml/srs/epsg.xml#3857")];function he(t,e,i){var r=t.length,n=i>1?i:2,o=e;void 0===o&&(o=n>2?t.slice():new Array(r));for(var s=re,a=0;a<r;a+=n){o[a]=s*t[a]/180;var h=ie*Math.log(Math.tan(Math.PI*(t[a+1]+90)/360));h>s?h=s:h<-s&&(h=-s),o[a+1]=h}return o}function le(t,e,i){var r=t.length,n=i>1?i:2,o=e;void 0===o&&(o=n>2?t.slice():new Array(r));for(var s=0;s<r;s+=n)o[s]=180*t[s]/re,o[s+1]=360*Math.atan(Math.exp(t[s+1]/ie))/Math.PI-90;return o}var ue=[-180,-90,180,90],pe=6378137*Math.PI/180,ce=function(t){function e(e,i){t.call(this,{code:e,units:$t.DEGREES,extent:ue,axisOrientation:i,global:!0,metersPerUnit:pe,worldExtent:ue})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(ee),de=[new ce("CRS:84"),new ce("EPSG:4326","neu"),new ce("urn:ogc:def:crs:EPSG::4326","neu"),new ce("urn:ogc:def:crs:EPSG:6.6:4326","neu"),new ce("urn:ogc:def:crs:OGC:1.3:CRS84"),new ce("urn:ogc:def:crs:OGC:2:84"),new ce("http://www.opengis.net/gml/srs/epsg.xml#4326","neu"),new ce("urn:x-ogc:def:crs:EPSG:4326","neu")],fe={};var _e={};function ge(t,e,i){var r=t.getCode(),n=e.getCode();r in _e||(_e[r]={}),_e[r][n]=i}function ye(t,
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