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o,r=t[i],s=r.type;if("Point"===s||"MultiPoint"===s||"LineString"===s)o=z(r.geometry,e);else if("MultiLineString"===s||"Polygon"===s){o=[];for(var l=0;l<r.geometry.length;l++)o.push(z(r.geometry[l],e))}else if("MultiPolygon"===s)for(o=[],l=0;l<r.geometry.length;l++){for(var a=[],u=0;u<r.geometry[l].length;u++)a.push(z(r.geometry[l][u],e));o.push(a)}n.push(x(r.id,s,o,r.tags))}return n}function z(t,e){var n=[];n.size=t.size,void 0!==t.start&&(n.start=t.start,n.end=t.end);for(var i=0;i<t.length;i+=3)n.push(t[i]+e,t[i+1],t[i+2]);return n}function w(t,e){if(t.transformed)return t;var n,i,o,r=1<<t.z,s=t.x,l=t.y;for(n=0;n<t.features.length;n++){var a=t.features[n],u=a.geometry,f=a.type;if(a.geometry=[],1===f)for(i=0;i<u.length;i+=2)a.geometry.push(I(u[i],u[i+1],e,r,s,l));else for(i=0;i<u.length;i++){var h=[];for(o=0;o<u[i].length;o+=2)h.push(I(u[i][o],u[i][o+1],e,r,s,l));a.geometry.push(h)}}return t.transformed=!0,t}function I(t,e,n,i,o,r){return[Math.round(n*(t*i-o)),Math.round(n*(e*i-r))]}function Z(t,e,n,i,o){for(var r=e===o.maxZoom?0:o.tolerance/((1<<e)*o.extent),s={features:[],numPoints:0,numSimplified:0,numFeatures:0,source:null,x:n,y:i,z:e,transformed:!1,minX:2,minY:1,maxX:-1,maxY:0},l=0;l<t.length;l++){s.numFeatures++,E(s,t[l],r,o);var a=t[l].minX,u=t[l].minY,f=t[l].maxX,h=t[l].maxY;a<s.minX&&(s.minX=a),u<s.minY&&(s.minY=u),f>s.maxX&&(s.maxX=f),h>s.maxY&&(s.maxY=h)}return s}function E(t,e,n,i){var o=e.geometry,r=e.type,s=[];if("Point"===r||"MultiPoint"===r)for(var l=0;l<o.length;l+=3)s.push(o[l]),s.push(o[l+1]),t.numPoints++,t.numSimplified++;else if("LineString"===r)F(s,o,t,n,!1,!1);else if("MultiLineString"===r||"Polygon"===r)for(l=0;l<o.length;l++)F(s,o[l],t,n,"Polygon"===r,0===l);else if("MultiPolygon"===r)for(var a=0;a<o.length;a++){var u=o[a];for(l=0;l<u.length;l++)F(s,u[l],t,n,!0,0===l)}if(s.length){var f=e.tags||null;if("LineString"===r&&i.lineMetrics){for(var h in 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used together.");var i,o,r,s,l,a,u=function(t,e){var n=[];if("FeatureCollection"===t.type)for(var i=0;i<t.features.length;i++)h(n,t.features[i],e,i);else"Feature"===t.type?h(n,t,e):h(n,{geometry:t},e);return n}(t,e);this.tiles={},this.tileCoords=[],n&&(console.timeEnd("preprocess data"),console.log("index: maxZoom: %d, maxPoints: %d",e.indexMaxZoom,e.indexMaxPoints),console.time("generate tiles"),this.stats={},this.total=0),i=u,r=(o=e).buffer/o.extent,l=L(s=i,1,-1-r,r,0,-1,2,o),a=L(i,1,1-r,2+r,0,-1,2,o),(l||a)&&(s=L(i,1,-r,1+r,0,-1,2,o)||[],l&&(s=f(l,1).concat(s)),a&&(s=s.concat(f(a,-1)))),(u=s).length&&this.splitTile(u,0,0,0),n&&(u.length&&console.log("features: %d, points: %d",this.tiles[0].numFeatures,this.tiles[0].numPoints),console.timeEnd("generate tiles"),console.log("tiles generated:",this.total,JSON.stringify(this.stats)))}function j(t,e,n){return 32*((1<<t)*n+e)+t}return n.prototype.options={maxZoom:14,indexMaxZoom:5,indexMaxPoints:1e5,tolerance:3,extent:4096,buffer:64,lineMetrics:!1,promoteId:null,generateId:!1,debug:0},n.prototype.splitTile=function(t,e,n,i,o,r,s){for(var l=[t,e,n,i],a=this.options,u=a.debug;l.length;){i=l.pop(),n=l.pop(),e=l.pop(),t=l.pop();var f=1<<e,h=j(e,n,i),g=this.tiles[h];if(!g&&(1<u&&console.time("creation"),g=this.tiles[h]=Z(t,e,n,i,a),this.tileCoords.push({z:e,x:n,y:i}),u)){1<u&&(console.log("tile z%d-%d-%d (features: %d, points: %d, simplified: %d)",e,n,i,g.numFeatures,g.numPoints,g.numSimplified),console.timeEnd("creation"));var m="z"+e;this.stats[m]=(this.stats[m]||0)+1,this.total++}if(g.source=t,o){if(e===a.maxZoom||e===o)continue;var p=1<<o-e;if(n!==Math.floor(r/p)||i!==Math.floor(s/p))continue}else if(e===a.indexMaxZoom||g.numPoints<=a.indexMaxPoints)continue;if(g.source=null,0!==t.length){1<u&&console.time("clipping");var d,c,v,x,y,M,P=.5*a.buffer/a.extent,S=.5-P,Y=.5+P,X=1+P;d=c=v=x=null,y=L(t,f,n-P,n+Y,0,g.minX,g.maxX,a),M=L(t,f,n+S,n+X,0,g.minX,g.maxX,a),t=null,y&&(d=L(y,f,i-P,i+Y,1,g.minY,g.maxY,a),c=L(y,f,i+S,i+X,1,g.minY,g.maxY,a),y=null),M&&(v=L(M,f,i-P,i+Y,1,g.minY,g.maxY,a),x=L(M,f,i+S,i+X,1,g.minY,g.maxY,a),M=null),1<u&&console.timeEnd("clipping"),l.push(d||[],e+1,2*n,2*i),l.push(c||[],e+1,2*n,2*i+1),l.push(v||[],e+1,2*n+1,2*i),l.push(x||[],e+1,2*n+1,2*i+1)}}},n.prototype.getTile=function(t,e,n){var i=this.options,o=i.extent,r=i.debug;if(t<0||24<t)return null;var s=1<<t,l=j(t,e=(e%s+s)%s,n);if(this.tiles[l])return w(this.tiles[l],o);1<r&&console.log("drilling down to z%d-%d-%d",t,e,n);for(var a,u=t,f=e,h=n;!a&&0<u;)u--,f=Math.floor(f/2),h=Math.floor(h/2),a=this.tiles[j(u,f,h)];return a&&a.source?(1<r&&console.log("found parent tile z%d-%d-%d",u,f,h),1<r&&console.time("drilling down"),this.splitTile(a.source,u,f,h,t,e,n),1<r&&console.timeEnd("drilling down"),this.tiles[l]?w(this.tiles[l],o):null):null},function(t,e){return new n(t,e)}});
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