s&&(s=a),oh&&(h=o);else if(7!==r)throw new Error("unknown command "+r)}return[n,p,s,h]},VectorTileFeature.prototype.toGeoJSON=function(e,t,r){function i(e){for(var t=0;t>3;t=1===a?e.readString():2===a?e.readFloat():3===a?e.readDouble():4===a?e.readVarint64():5===a?e.readVarint():6===a?e.readSVarint():7===a?e.readBoolean():null}return t}var VectorTileFeature=_dereq_("./vectortilefeature.js");module.exports=VectorTileLayer,VectorTileLayer.prototype.feature=function(e){if(e<0||e>=this._features.length)throw new Error("feature index out of bounds");this._pbf.pos=this._features[e];var t=this._pbf.readVarint()+this._pbf.pos;return new VectorTileFeature(this._pbf,t,this.extent,this._keys,this._values)}},{"./vectortilefeature.js":35}],37:[function(_dereq_,module,exports){function fromVectorTileJs(e){var r=[];for(var o in e.layers)r.push(prepareLayer(e.layers[o]));var t=new Pbf;return vtpb.tile.write({layers:r},t),t.finish()}function prepareLayer(e){for(var r={name:e.name||"",version:e.version||1,extent:e.extent||4096,keys:[],values:[],features:[]},o={},t={},n=0;n>31}function encodeGeometry(e){for(var r=[],o=0,t=0,n=e.length,a=0;aArrayGroup.MAX_VERTEX_ARRAY_LENGTH)&&(e=new Segment(this.layoutVertexArray.length,this.elementArray.length),this.segments.push(e)),e},ArrayGroup.prototype.prepareSegment2=function(r){var e=this.segments2[this.segments2.length-1];return(!e||e.vertexLength+r>ArrayGroup.MAX_VERTEX_ARRAY_LENGTH)&&(e=new Segment(this.layoutVertexArray.length,this.elementArray2.length),this.segments2.push(e)),e},ArrayGroup.prototype.populatePaintArrays=function(r){var e=this;for(var t in e.layerData){var a=e.layerData[t];0!==a.paintVertexArray.bytesPerElement&&a.programConfiguration.populatePaintArray(a.layer,a.paintVertexArray,a.paintPropertyStatistics,e.layoutVertexArray.length,e.globalProperties,r)}},ArrayGroup.prototype.isEmpty=function(){return 0===this.layoutVertexArray.length},ArrayGroup.prototype.serialize=function(r){return{layoutVertexArray:this.layoutVertexArray.serialize(r),elementArray:this.elementArray&&this.elementArray.serialize(r),elementArray2:this.elementArray2&&this.elementArray2.serialize(r),paintVertexArrays:serializePaintVertexArrays(this.layerData,r),segments:this.segments,segments2:this.segments2}},ArrayGroup.MAX_VERTEX_ARRAY_LENGTH=Math.pow(2,16)-1,module.exports=ArrayGroup},{"./program_configuration":57,"./vertex_array_type":59}],44:[function(_dereq_,module,exports){"use strict";var ArrayGroup=_dereq_("./array_group"),BufferGroup=_dereq_("./buffer_group"),util=_dereq_("../util/util"),Bucket=function(r,t){this.zoom=r.zoom,this.overscaling=r.overscaling,this.layers=r.layers,this.index=r.index,r.arrays?this.buffers=new BufferGroup(t,r.layers,r.zoom,r.arrays):this.arrays=new ArrayGroup(t,r.layers,r.zoom)};Bucket.prototype.populate=function(r,t){for(var e=this,i=0,a=r;i=EXTENT||y<0||y>=EXTENT)){var n=r.prepareSegment(4),u=n.vertexLength;addCircleVertex(r.layoutVertexArray,o,y,-1,-1),addCircleVertex(r.layoutVertexArray,o,y,1,-1),addCircleVertex(r.layoutVertexArray,o,y,1,1),addCircleVertex(r.layoutVertexArray,o,y,-1,1),r.elementArray.emplaceBack(u,u+1,u+2),r.elementArray.emplaceBack(u,u+3,u+2),n.vertexLength+=4,n.primitiveLength+=2}}r.populatePaintArrays(e.properties)},r}(Bucket);CircleBucket.programInterface=circleInterface,module.exports=CircleBucket},{"../bucket":44,"../element_array_type":52,"../extent":53,"../load_geometry":55}],46:[function(_dereq_,module,exports){"use strict";var Bucket=_dereq_("../bucket"),createElementArrayType=_dereq_("../element_array_type"),loadGeometry=_dereq_("../load_geometry"),earcut=_dereq_("earcut"),classifyRings=_dereq_("../../util/classify_rings"),fillInterface={layoutAttributes:[{name:"a_pos",components:2,type:"Int16"}],elementArrayType:createElementArrayType(3),elementArrayType2:createElementArrayType(2),paintAttributes:[{property:"fill-color",type:"Uint8"},{property:"fill-outline-color",type:"Uint8"},{property:"fill-opacity",type:"Uint8",multiplier:255}]},FillBucket=function(e){function t(t){e.call(this,t,fillInterface)}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype.addFeature=function(e){for(var t=this.arrays,r=0,a=classifyRings(loadGeometry(e),500);rEXTENT)||e.y===t.y&&(e.y<0||e.y>EXTENT)}var Bucket=_dereq_("../bucket"),createElementArrayType=_dereq_("../element_array_type"),loadGeometry=_dereq_("../load_geometry"),EXTENT=_dereq_("../extent"),earcut=_dereq_("earcut"),classifyRings=_dereq_("../../util/classify_rings"),fillExtrusionInterface={layoutAttributes:[{name:"a_pos",components:2,type:"Int16"},{name:"a_normal",components:3,type:"Int16"},{name:"a_edgedistance",components:1,type:"Int16"}],elementArrayType:createElementArrayType(3),paintAttributes:[{property:"fill-extrusion-base",type:"Uint16"},{property:"fill-extrusion-height",type:"Uint16"},{property:"fill-extrusion-color",type:"Uint8"}]},FACTOR=Math.pow(2,13),FillExtrusionBucket=function(e){function t(t){e.call(this,t,fillExtrusionInterface)}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype.addFeature=function(e){for(var t=this.arrays,r=0,a=classifyRings(loadGeometry(e),500);r=1){var A=d[h-1];if(!isBoundaryEdge(g,A)){var E=g.sub(A)._perp()._unit();addVertex(t.layoutVertexArray,g.x,g.y,E.x,E.y,0,0,m),addVertex(t.layoutVertexArray,g.x,g.y,E.x,E.y,0,1,m),m+=A.dist(g),addVertex(t.layoutVertexArray,A.x,A.y,E.x,E.y,0,0,m),addVertex(t.layoutVertexArray,A.x,A.y,E.x,E.y,0,1,m);var v=u.vertexLength;t.elementArray.emplaceBack(v,v+1,v+2),t.elementArray.emplaceBack(v+1,v+2,v+3),u.vertexLength+=4,u.primitiveLength+=2}}p.push(g.x),p.push(g.y)}}}for(var _=earcut(p,s),T=0;T<_.length;T+=3)t.elementArray.emplaceBack(c[_[T]],c[_[T+1]],c[_[T+2]]);u.primitiveLength+=_.length/3}t.populatePaintArrays(e.properties)},t}(Bucket);FillExtrusionBucket.programInterface=fillExtrusionInterface,module.exports=FillExtrusionBucket},{"../../util/classify_rings":197,"../bucket":44,"../element_array_type":52,"../extent":53,"../load_geometry":55,earcut:5}],48:[function(_dereq_,module,exports){"use strict";function addLineVertex(e,t,r,i,a,n,d){e.emplaceBack(t.x<<1|i,t.y<<1|a,Math.round(EXTRUDE_SCALE*r.x)+128,Math.round(EXTRUDE_SCALE*r.y)+128,1+(0===n?0:n<0?-1:1)|(d*LINE_DISTANCE_SCALE&63)<<2,d*LINE_DISTANCE_SCALE>>6)}var Bucket=_dereq_("../bucket"),createElementArrayType=_dereq_("../element_array_type"),loadGeometry=_dereq_("../load_geometry"),EXTENT=_dereq_("../extent"),VectorTileFeature=_dereq_("vector-tile").VectorTileFeature,EXTRUDE_SCALE=63,COS_HALF_SHARP_CORNER=Math.cos(Math.PI/180*37.5),LINE_DISTANCE_SCALE=.5,MAX_LINE_DISTANCE=Math.pow(2,14)/LINE_DISTANCE_SCALE,lineInterface={layoutAttributes:[{name:"a_pos",components:2,type:"Int16"},{name:"a_data",components:4,type:"Uint8"}],paintAttributes:[{property:"line-color",type:"Uint8"},{property:"line-blur",multiplier:10,type:"Uint8"},{property:"line-opacity",multiplier:10,type:"Uint8"},{property:"line-gap-width",multiplier:10,type:"Uint8",name:"a_gapwidth"},{property:"line-offset",multiplier:1,type:"Int8"}],elementArrayType:createElementArrayType()},LineBucket=function(e){function t(t){e.call(this,t,lineInterface)}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype.addFeature=function(e){for(var t=this,r=this.layers[0].layout,i=r["line-join"],a=r["line-cap"],n=r["line-miter-limit"],d=r["line-round-limit"],s=0,u=loadGeometry(e,15);s=2&&e[l-1].equals(e[l-2]);)l--;for(var o=0;oo){var R=y.dist(m);if(R>2*p){var g=y.sub(y.sub(m)._mult(p/R)._round());d.distance+=g.dist(m),d.addCurrentVertex(g,d.distance,x.mult(1),0,0,!1,h),m=g}}var F=m&&E,B=F?r:E?A:L;if(F&&"round"===B&&(Na&&(B="bevel"),"bevel"===B&&(N>2&&(B="flipbevel"),N100)I=C.clone().mult(-1);else{var k=x.x*C.y-x.y*C.x>0?-1:1,D=N*x.add(C).mag()/x.sub(C).mag();I._perp()._mult(D*k)}d.addCurrentVertex(y,d.distance,I,0,0,!1,h),d.addCurrentVertex(y,d.distance,I.mult(-1),0,0,!1,h)}else if("bevel"===B||"fakeround"===B){var P=x.x*C.y-x.y*C.x>0,U=-Math.sqrt(N*N-1);if(P?(f=0,v=U):(v=0,f=U),S||d.addCurrentVertex(y,d.distance,x,v,f,!1,h),"fakeround"===B){for(var q=Math.floor(8*(.5-(T-.5))),M=void 0,O=0;O=0;X--)M=x.mult((X+1)/(q+1))._add(C)._unit(),d.addPieSliceVertex(y,d.distance,M,P,h)}E&&d.addCurrentVertex(y,d.distance,C,-v,-f,!1,h)}else"butt"===B?(S||d.addCurrentVertex(y,d.distance,x,0,0,!1,h),E&&d.addCurrentVertex(y,d.distance,C,0,0,!1,h)):"square"===B?(S||(d.addCurrentVertex(y,d.distance,x,1,1,!1,h),d.e1=d.e2=-1),E&&d.addCurrentVertex(y,d.distance,C,-1,-1,!1,h)):"round"===B&&(S||(d.addCurrentVertex(y,d.distance,x,0,0,!1,h),d.addCurrentVertex(y,d.distance,x,1,1,!0,h),d.e1=d.e2=-1),E&&(d.addCurrentVertex(y,d.distance,C,-1,-1,!0,h),d.addCurrentVertex(y,d.distance,C,0,0,!1,h)));if(b&&V2*p){var w=y.add(E.sub(y)._mult(p/H)._round());d.distance+=w.dist(y),d.addCurrentVertex(w,d.distance,C.mult(1),0,0,!1,h),y=w}}S=!1}_.populatePaintArrays(s)}},t.prototype.addCurrentVertex=function(e,t,r,i,a,n,d){var s,u=n?1:0,l=this.arrays,o=l.layoutVertexArray,p=l.elementArray;s=r.clone(),i&&s._sub(r.perp()._mult(i)),addLineVertex(o,e,s,u,0,i,t),this.e3=d.vertexLength++,this.e1>=0&&this.e2>=0&&(p.emplaceBack(this.e1,this.e2,this.e3),d.primitiveLength++),this.e1=this.e2,this.e2=this.e3,s=r.mult(-1),a&&s._sub(r.perp()._mult(a)),addLineVertex(o,e,s,u,1,-a,t),this.e3=d.vertexLength++,this.e1>=0&&this.e2>=0&&(p.emplaceBack(this.e1,this.e2,this.e3),d.primitiveLength++),this.e1=this.e2,this.e2=this.e3,t>MAX_LINE_DISTANCE/2&&(this.distance=0,this.addCurrentVertex(e,this.distance,r,i,a,n,d))},t.prototype.addPieSliceVertex=function(e,t,r,i,a){var n=i?1:0;r=r.mult(i?-1:1);var d=this.arrays,s=d.layoutVertexArray,u=d.elementArray;addLineVertex(s,e,r,0,n,0,t),this.e3=a.vertexLength++,this.e1>=0&&this.e2>=0&&(u.emplaceBack(this.e1,this.e2,this.e3),a.primitiveLength++),i?this.e2=this.e3:this.e1=this.e3},t}(Bucket);LineBucket.programInterface=lineInterface,module.exports=LineBucket},{"../bucket":44,"../element_array_type":52,"../extent":53,"../load_geometry":55,"vector-tile":33}],49:[function(_dereq_,module,exports){"use strict";function addVertex(e,t,o,a,i,r,n,s,l,c,y,u,p,h){e.emplaceBack(t,o,Math.round(64*a),Math.round(64*i),r,n,s,l,packUint8ToFloat(10*(p||0),h%256),packUint8ToFloat(10*(y||0),10*Math.min(u||25,25)),c?c[0]:void 0,c?c[1]:void 0,c?c[2]:void 0)}function addCollisionBoxVertex(e,t,o,a,i,r){return e.emplaceBack(t.x,t.y,o.x,o.y,Math.round(a.x),Math.round(a.y),10*i,10*r)}function getSizeData(e,t,o){var a={isFeatureConstant:t.isLayoutValueFeatureConstant(o),isZoomConstant:t.isLayoutValueZoomConstant(o)};if(a.isFeatureConstant&&(a.layoutSize=t.getLayoutValue(o,{zoom:e+1})),!a.isZoomConstant){for(var i=t.getLayoutValueStopZoomLevels(o),r=0;rEXTENT||r.y<0||r.y>EXTENT);if(!m||n){var s=n||v;a.addSymbolInstance(r,i,t,o,a.layers[0],s,a.collisionBoxArray,e.index,e.sourceLayerIndex,a.index,y,x,f,p,d,b,{zoom:a.zoom},e.properties)}};if("line"===s["symbol-placement"])for(var B=0,M=clipLine(e.geometry,0,0,EXTENT,EXTENT);B=0;r--)if(o.dist(i[r])7*Math.PI/4)continue}else if(i&&r&&g<=3*Math.PI/4||g>5*Math.PI/4)continue}else if(i&&r&&(g<=Math.PI/2||g>3*Math.PI/2))continue;var f=d.tl,b=d.tr,v=d.bl,S=d.br,I=d.tex,z=d.anchorPoint,B=Math.max(p+Math.log(d.minScale)/Math.LN2,h),M=Math.min(p+Math.log(d.maxScale)/Math.LN2,25);if(!(M<=B)){B===h&&(B=0);var L=Math.round(d.glyphAngle/(2*Math.PI)*256),A=e.prepareSegment(4),_=A.vertexLength;addVertex(u,z.x,z.y,f.x,f.y,c.x,c.y,I.x,I.y,a,B,M,h,L),addVertex(u,z.x,z.y,b.x,b.y,c.x,c.y,I.x+I.w,I.y,a,B,M,h,L),addVertex(u,z.x,z.y,v.x,v.y,c.x,c.y,I.x,I.y+I.h,a,B,M,h,L),addVertex(u,z.x,z.y,S.x,S.y,c.x,c.y,I.x+I.w,I.y+I.h,a,B,M,h,L),y.emplaceBack(_,_+1,_+2),y.emplaceBack(_+1,_+2,_+3),A.vertexLength+=4,A.primitiveLength+=2}}e.populatePaintArrays(s)},SymbolBucket.prototype.addToDebugBuffers=function(e){for(var t=this,o=this.arrays.collisionBox,a=o.layoutVertexArray,i=o.elementArray,r=-e.angle,n=e.yStretch,s=0,l=t.symbolInstances;sSymbolBucket.MAX_INSTANCES&&util.warnOnce("Too many symbols being rendered in a tile. See https://github.com/mapbox/mapbox-gl-js/issues/2907"),A>SymbolBucket.MAX_INSTANCES&&util.warnOnce("Too many glyphs being rendered in a tile. See https://github.com/mapbox/mapbox-gl-js/issues/2907");var _=(o[WritingMode.vertical]?WritingMode.vertical:0)|(o[WritingMode.horizontal]?WritingMode.horizontal:0);this.symbolInstances.push({textBoxStartIndex:B,textBoxEndIndex:M,iconBoxStartIndex:L,iconBoxEndIndex:A,glyphQuads:S,iconQuads:v,anchor:e,featureIndex:s,featureProperties:g,writingModes:_})},SymbolBucket.programInterfaces=symbolInterfaces,SymbolBucket.MAX_INSTANCES=65535,module.exports=SymbolBucket},{"../../shaders/encode_attribute":80,"../../symbol/anchor":159,"../../symbol/clip_line":161,"../../symbol/collision_feature":163,"../../symbol/get_anchors":165,"../../symbol/mergelines":168,"../../symbol/quads":169,"../../symbol/shaping":170,"../../symbol/transform_text":172,"../../util/classify_rings":197,"../../util/find_pole_of_inaccessibility":203,"../../util/script_detection":210,"../../util/token":214,"../../util/util":215,"../array_group":43,"../buffer_group":51,"../element_array_type":52,"../extent":53,"../load_geometry":55,"point-geometry":25,"vector-tile":33}],50:[function(_dereq_,module,exports){"use strict";var AttributeType={Int8:"BYTE",Uint8:"UNSIGNED_BYTE",Int16:"SHORT",Uint16:"UNSIGNED_SHORT"},Buffer=function(t,e,r){this.arrayBuffer=t.arrayBuffer,this.length=t.length,this.attributes=e.members,this.itemSize=e.bytesPerElement,this.type=r,this.arrayType=e};Buffer.fromStructArray=function(t,e){return new Buffer(t.serialize(),t.constructor.serialize(),e)},Buffer.prototype.bind=function(t){var e=t[this.type];this.buffer?t.bindBuffer(e,this.buffer):(this.gl=t,this.buffer=t.createBuffer(),t.bindBuffer(e,this.buffer),t.bufferData(e,this.arrayBuffer,t.STATIC_DRAW),this.arrayBuffer=null)},Buffer.prototype.enableAttributes=function(t,e){for(var r=this,f=0;f0?t+2*e:e}function translate(e,t,r,i,a){if(!t[0]&&!t[1])return e;t=Point.convert(t),"viewport"===r&&t._rotate(-i);for(var n=[],s=0;sr.max||d.yr.max)&&util.warnOnce("Geometry exceeds allowed extent, reduce your vector tile buffer size")}return u}},{"../util/util":215,"./extent":53}],56:[function(_dereq_,module,exports){"use strict";var PosArray=_dereq_("../util/struct_array")({members:[{name:"a_pos",type:"Int16",components:2}]});module.exports=PosArray},{"../util/struct_array":212}],57:[function(_dereq_,module,exports){"use strict";function getPaintAttributeValue(t,r,e,i){if(!t.zoomStops)return r.getPaintValue(t.property,e,i);var a=t.zoomStops.map(function(a){return r.getPaintValue(t.property,util.extend({},e,{zoom:a}),i)});return 1===a.length?a[0]:a}function normalizePaintAttribute(t,r){var e=t.name;e||(e=t.property.replace(r.type+"-","").replace(/-/g,"_"));var i="color"===r._paintSpecifications[t.property].type;return util.extend({name:"a_"+e,components:i?4:1,multiplier:i?255:1,dimensions:i?4:1},t)}var createVertexArrayType=_dereq_("./vertex_array_type"),util=_dereq_("../util/util"),ProgramConfiguration=function(){this.attributes=[],this.uniforms=[],this.interpolationUniforms=[],this.pragmas={vertex:{},fragment:{}},this.cacheKey="",this.interface={}};ProgramConfiguration.createDynamic=function(t,r,e){for(var i=new ProgramConfiguration,a=0,n=t.paintAttributes||[];a4)for(;p90||this.lat<-90)throw new Error("Invalid LngLat latitude value: must be between -90 and 90")};LngLat.prototype.wrap=function(){return new LngLat(wrap(this.lng,-180,180),this.lat)},LngLat.prototype.toArray=function(){return[this.lng,this.lat]},LngLat.prototype.toString=function(){return"LngLat("+this.lng+", "+this.lat+")"},LngLat.convert=function(t){if(t instanceof LngLat)return t;if(Array.isArray(t)&&2===t.length)return new LngLat(Number(t[0]),Number(t[1]));if(!Array.isArray(t)&&"object"==typeof t&&null!==t)return new LngLat(Number(t.lng),Number(t.lat));throw new Error("`LngLatLike` argument must be specified as a LngLat instance, an object {lng: , lat: }, or an array of [, ]")},module.exports=LngLat},{"../util/util":215}],62:[function(_dereq_,module,exports){"use strict";var LngLat=_dereq_("./lng_lat"),LngLatBounds=function(t,n){t&&(n?this.setSouthWest(t).setNorthEast(n):4===t.length?this.setSouthWest([t[0],t[1]]).setNorthEast([t[2],t[3]]):this.setSouthWest(t[0]).setNorthEast(t[1]))};LngLatBounds.prototype.setNorthEast=function(t){return this._ne=t instanceof LngLat?new LngLat(t.lng,t.lat):LngLat.convert(t),this},LngLatBounds.prototype.setSouthWest=function(t){return this._sw=t instanceof LngLat?new LngLat(t.lng,t.lat):LngLat.convert(t),this},LngLatBounds.prototype.extend=function(t){var n,e,s=this._sw,o=this._ne;if(t instanceof LngLat)n=t,e=t;else{if(!(t instanceof LngLatBounds))return Array.isArray(t)?t.every(Array.isArray)?this.extend(LngLatBounds.convert(t)):this.extend(LngLat.convert(t)):this;if(n=t._sw,e=t._ne,!n||!e)return this}return s||o?(s.lng=Math.min(n.lng,s.lng),s.lat=Math.min(n.lat,s.lat),o.lng=Math.max(e.lng,o.lng),o.lat=Math.max(e.lat,o.lat)):(this._sw=new LngLat(n.lng,n.lat),this._ne=new LngLat(e.lng,e.lat)),this},LngLatBounds.prototype.getCenter=function(){return new LngLat((this._sw.lng+this._ne.lng)/2,(this._sw.lat+this._ne.lat)/2)},LngLatBounds.prototype.getSouthWest=function(){return this._sw},LngLatBounds.prototype.getNorthEast=function(){return this._ne},LngLatBounds.prototype.getNorthWest=function(){return new LngLat(this.getWest(),this.getNorth())},LngLatBounds.prototype.getSouthEast=function(){return new LngLat(this.getEast(),this.getSouth())},LngLatBounds.prototype.getWest=function(){return this._sw.lng},LngLatBounds.prototype.getSouth=function(){return this._sw.lat},LngLatBounds.prototype.getEast=function(){return this._ne.lng},LngLatBounds.prototype.getNorth=function(){return this._ne.lat},LngLatBounds.prototype.toArray=function(){return[this._sw.toArray(),this._ne.toArray()]},LngLatBounds.prototype.toString=function(){return"LngLatBounds("+this._sw.toString()+", "+this._ne.toString()+")"},LngLatBounds.convert=function(t){return!t||t instanceof LngLatBounds?t:new LngLatBounds(t)},module.exports=LngLatBounds},{"./lng_lat":61}],63:[function(_dereq_,module,exports){"use strict";var LngLat=_dereq_("./lng_lat"),Point=_dereq_("point-geometry"),Coordinate=_dereq_("./coordinate"),util=_dereq_("../util/util"),interp=_dereq_("../style-spec/util/interpolate"),TileCoord=_dereq_("../source/tile_coord"),EXTENT=_dereq_("../data/extent"),glmatrix=_dereq_("@mapbox/gl-matrix"),vec4=glmatrix.vec4,mat4=glmatrix.mat4,mat2=glmatrix.mat2,Transform=function(t,o,i){this.tileSize=512,this._renderWorldCopies=void 0===i||i,this._minZoom=t||0,this._maxZoom=o||22,this.latRange=[-85.05113,85.05113],this.width=0,this.height=0,this._center=new LngLat(0,0),this.zoom=0,this.angle=0,this._fov=.6435011087932844,this._pitch=0,this._unmodified=!0},prototypeAccessors={minZoom:{},maxZoom:{},renderWorldCopies:{},worldSize:{},centerPoint:{},size:{},bearing:{},pitch:{},fov:{},zoom:{},center:{},unmodified:{},x:{},y:{},point:{}};prototypeAccessors.minZoom.get=function(){return this._minZoom},prototypeAccessors.minZoom.set=function(t){this._minZoom!==t&&(this._minZoom=t,this.zoom=Math.max(this.zoom,t))},prototypeAccessors.maxZoom.get=function(){return this._maxZoom},prototypeAccessors.maxZoom.set=function(t){this._maxZoom!==t&&(this._maxZoom=t,this.zoom=Math.min(this.zoom,t))},prototypeAccessors.renderWorldCopies.get=function(){return this._renderWorldCopies},prototypeAccessors.worldSize.get=function(){return this.tileSize*this.scale},prototypeAccessors.centerPoint.get=function(){return this.size._div(2)},prototypeAccessors.size.get=function(){return new Point(this.width,this.height)},prototypeAccessors.bearing.get=function(){return-this.angle/Math.PI*180},prototypeAccessors.bearing.set=function(t){var o=-util.wrap(t,-180,180)*Math.PI/180;this.angle!==o&&(this._unmodified=!1,this.angle=o,this._calcMatrices(),this.rotationMatrix=mat2.create(),mat2.rotate(this.rotationMatrix,this.rotationMatrix,this.angle))},prototypeAccessors.pitch.get=function(){return this._pitch/Math.PI*180},prototypeAccessors.pitch.set=function(t){var o=util.clamp(t,0,60)/180*Math.PI;this._pitch!==o&&(this._unmodified=!1,this._pitch=o,this._calcMatrices())},prototypeAccessors.fov.get=function(){return this._fov/Math.PI*180},prototypeAccessors.fov.set=function(t){t=Math.max(.01,Math.min(60,t)),this._fov!==t&&(this._unmodified=!1,this._fov=t/180*Math.PI,this._calcMatrices())},prototypeAccessors.zoom.get=function(){return this._zoom},prototypeAccessors.zoom.set=function(t){var o=Math.min(Math.max(t,this.minZoom),this.maxZoom);this._zoom!==o&&(this._unmodified=!1,this._zoom=o,this.scale=this.zoomScale(o),this.tileZoom=Math.floor(o),this.zoomFraction=o-this.tileZoom,this._constrain(),this._calcMatrices())},prototypeAccessors.center.get=function(){return this._center},prototypeAccessors.center.set=function(t){t.lat===this._center.lat&&t.lng===this._center.lng||(this._unmodified=!1,this._center=t,this._constrain(),this._calcMatrices())},Transform.prototype.coveringZoomLevel=function(t){return(t.roundZoom?Math.round:Math.floor)(this.zoom+this.scaleZoom(this.tileSize/t.tileSize))},Transform.prototype.getVisibleWrappedCoordinates=function(t){for(var o=this.pointCoordinate(new Point(0,0),0),i=this.pointCoordinate(new Point(this.width,0),0),e=Math.floor(o.column),r=Math.floor(i.column),n=[t],s=e;s<=r;s++)0!==s&&n.push(new TileCoord(t.z,t.x,t.y,s));return n},Transform.prototype.coveringTiles=function(t){var o=this.coveringZoomLevel(t),i=o;if(ot.maxzoom&&(o=t.maxzoom);var e=this.pointCoordinate(this.centerPoint,o),r=new Point(e.column-.5,e.row-.5),n=[this.pointCoordinate(new Point(0,0),o),this.pointCoordinate(new Point(this.width,0),o),this.pointCoordinate(new Point(this.width,this.height),o),this.pointCoordinate(new Point(0,this.height),o)];return TileCoord.cover(o,n,t.reparseOverscaled?i:o,this._renderWorldCopies).sort(function(t,o){return r.dist(t)-r.dist(o)})},Transform.prototype.resize=function(t,o){this.width=t,this.height=o,this.pixelsToGLUnits=[2/t,-2/o],this._constrain(),this._calcMatrices()},prototypeAccessors.unmodified.get=function(){return this._unmodified},Transform.prototype.zoomScale=function(t){return Math.pow(2,t)},Transform.prototype.scaleZoom=function(t){return Math.log(t)/Math.LN2},Transform.prototype.project=function(t){return new Point(this.lngX(t.lng),this.latY(t.lat))},Transform.prototype.unproject=function(t){return new LngLat(this.xLng(t.x),this.yLat(t.y))},prototypeAccessors.x.get=function(){return this.lngX(this.center.lng)},prototypeAccessors.y.get=function(){return this.latY(this.center.lat)},prototypeAccessors.point.get=function(){return new Point(this.x,this.y)},Transform.prototype.lngX=function(t){return(180+t)*this.worldSize/360},Transform.prototype.latY=function(t){return(180-180/Math.PI*Math.log(Math.tan(Math.PI/4+t*Math.PI/360)))*this.worldSize/360},Transform.prototype.xLng=function(t){return 360*t/this.worldSize-180},Transform.prototype.yLat=function(t){var o=180-360*t/this.worldSize;return 360/Math.PI*Math.atan(Math.exp(o*Math.PI/180))-90},Transform.prototype.setLocationAtPoint=function(t,o){var i=this.pointCoordinate(o)._sub(this.pointCoordinate(this.centerPoint));this.center=this.coordinateLocation(this.locationCoordinate(t)._sub(i)),this._renderWorldCopies&&(this.center=this.center.wrap())},Transform.prototype.locationPoint=function(t){return this.coordinatePoint(this.locationCoordinate(t))},Transform.prototype.pointLocation=function(t){return this.coordinateLocation(this.pointCoordinate(t))},Transform.prototype.locationCoordinate=function(t){return new Coordinate(this.lngX(t.lng)/this.tileSize,this.latY(t.lat)/this.tileSize,this.zoom).zoomTo(this.tileZoom)},Transform.prototype.coordinateLocation=function(t){var o=t.zoomTo(this.zoom);return new LngLat(this.xLng(o.column*this.tileSize),this.yLat(o.row*this.tileSize))},Transform.prototype.pointCoordinate=function(t,o){void 0===o&&(o=this.tileZoom);var e=[t.x,t.y,0,1],r=[t.x,t.y,1,1];vec4.transformMat4(e,e,this.pixelMatrixInverse),vec4.transformMat4(r,r,this.pixelMatrixInverse);var n=e[3],s=r[3],a=e[0]/n,h=r[0]/s,c=e[1]/n,m=r[1]/s,p=e[2]/n,l=r[2]/s,u=p===l?0:(0-p)/(l-p);return new Coordinate(interp(a,h,u)/this.tileSize,interp(c,m,u)/this.tileSize,this.zoom)._zoomTo(o)},Transform.prototype.coordinatePoint=function(t){var o=t.zoomTo(this.zoom),i=[o.column*this.tileSize,o.row*this.tileSize,0,1];return vec4.transformMat4(i,i,this.pixelMatrix),new Point(i[0]/i[3],i[1]/i[3])},Transform.prototype.calculatePosMatrix=function(t,o){var i=t.toCoordinate(o),e=this.worldSize/this.zoomScale(i.zoom),r=mat4.identity(new Float64Array(16));return mat4.translate(r,r,[i.column*e,i.row*e,0]),mat4.scale(r,r,[e/EXTENT,e/EXTENT,1]),mat4.multiply(r,this.projMatrix,r),new Float32Array(r)},Transform.prototype.cameraToTileDistance=function(t){var o=this.calculatePosMatrix(t.coord,t.sourceMaxZoom),i=[t.tileSize/2,t.tileSize/2,0,1];return vec4.transformMat4(i,i,o),i[3]},Transform.prototype._constrain=function(){if(this.center&&this.width&&this.height&&!this._constraining){this._constraining=!0;var t,o,i,e,r=-90,n=90,s=-180,a=180,h=this.size,c=this._unmodified;if(this.latRange){var m=this.latRange;r=this.latY(m[1]),t=(n=this.latY(m[0]))-rn&&(e=n-f)}if(this.lngRange){var d=this.x,g=h.x/2;d-g