jonnybarnes.uk/public/assets/js/maps.js

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 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
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var q=N[V];A(q,new h(q[0].x,q[0].y,0))}else if("Point"===t.type)for(var Z=0,G=t.geometry;Z<G.length;Z+=1)for(var X=G[Z],W=0,Y=X;W<Y.length;W+=1){var H=Y[W];A([H],new h(H.x,H.y,0))}},D.prototype.anchorIsTooClose=function(t,e,r){var i=this.compareText;if(t in i){for(var n=i[t],o=n.length-1;o>=0;o--)if(r.dist(n[o])<e)return!0}else i[t]=[];return i[t].push(r),!1},D.prototype.place=function(t,e){var r=this;this.createArrays();var i=this.layers[0].layout,n=t.maxScale,o="map"===i["text-rotation-alignment"]&&"line"===i["symbol-placement"],a="map"===i["icon-rotation-alignment"]&&"line"===i["symbol-placement"],s=i["text-allow-overlap"]||i["icon-allow-overlap"]||i["text-ignore-placement"]||i["icon-ignore-placement"];if(s){var u=this.symbolInstancesArray.toArray(this.symbolInstancesStartIndex,this.symbolInstancesEndIndex),l=t.angle,c=Math.sin(l),h=Math.cos(l);this.sortedSymbolInstances=u.sort(function(t,e){var r=c*t.anchorPointX+h*t.anchorPointY|0,i=c*e.anchorPointX+h*e.anchorPointY|0;return r-i||e.index-t.index})}for(var p=this.symbolInstancesStartIndex;p<this.symbolInstancesEndIndex;p++){var f=r.sortedSymbolInstances?r.sortedSymbolInstances[p-r.symbolInstancesStartIndex]:r.symbolInstancesArray.get(p),d={boxStartIndex:f.textBoxStartIndex,boxEndIndex:f.textBoxEndIndex},m={boxStartIndex:f.iconBoxStartIndex,boxEndIndex:f.iconBoxEndIndex},y=!(f.textBoxStartIndex===f.textBoxEndIndex),v=!(f.iconBoxStartIndex===f.iconBoxEndIndex),g=i["text-optional"]||!y,_=i["icon-optional"]||!v,x=y?t.placeCollisionFeature(d,i["text-allow-overlap"],i["symbol-avoid-edges"]):t.minScale,b=v?t.placeCollisionFeature(m,i["icon-allow-overlap"],i["symbol-avoid-edges"]):t.minScale;g||_?!_&&x?x=Math.max(b,x):!g&&b&&(b=Math.max(b,x)):b=x=Math.max(b,x),y&&(t.insertCollisionFeature(d,x,i["text-ignore-placement"]),x<=n&&r.addSymbols(r.arrays.glyph,f.glyphQuadStartIndex,f.glyphQuadEndIndex,x,i["text-keep-upright"],o,t.angle,f.writingModes)),v&&(t.insertCollisionFeature(m,b,i["icon-ignore-placement"]),b<=n&&r.addSymbols(r.arrays.icon,f.iconQuadStartIndex,f.iconQuadEndIndex,b,i["icon-keep-upright"],a,t.angle))}e&&this.addToDebugBuffers(t)},D.prototype.addSymbols=function(t,e,r,n,o,a,s,u){for(var l=this,c=t.elementArray,h=t.layoutVertexArray,p=this.zoom,f=Math.max(Math.log(n)/Math.LN2+p,0),d=e;d<r;d++){var m=l.symbolQuadsArray.get(d).SymbolQuad,y=(m.anchorAngle+s+Math.PI)%(2*Math.PI);if(u&P.vertical){if(a&&m.writingMode===P.vertical){if(o&&a&&y<=5*Math.PI/4||y>7*Math.PI/4)continue}else if(o&&a&&y<=3*Math.PI/4||y>5*Math.PI/4)continue}else if(o&&a&&(y<=Math.PI/2||y>3*Math.PI/2))continue;var v=m.tl,g=m.tr,_=m.bl,x=m.br,b=m.tex,w=m.anchorPoint,E=Math.max(p+Math.log(m.minScale)/Math.LN2,f),T=Math.min(p+Math.log(m.maxScale)/Math.LN2,25);if(!(T<=E)){E===f&&(E=0);var S=Math.round(m.glyphAngle/(2*Math.PI)*256),z=t.prepareSegment(4),A=z.vertexLength;i(h,w.x,w.y,v.x,v.y,b.x,b.y,E,T,f,S),i(h,w.x,w.y,g.x,g.y,b.x+b.w,b.y,E,T,f,S),i(h,w.x,w.y,_.x,_.y,b.x,b.y+b.h,E,T,f,S),i(h,w.x,w.y,x.x,x.y,b.x+b.w,b.y+b.h,E,T,f,S),c.emplaceBack(A,A+1,A+2),c.emplaceBack(A+1,A+2,A+3),z.vertexLength+=4,z.primitiveLength+=2}}},D.prototype.addToDebugBuffers=function(t){for(var e=this,r=this.arrays.collisionBox,i=r.layoutVertexArray,a=r.elementArray,s=-t.angle,u=t.yStretch,l=this.symbolInstancesStartIndex;l<this.symbolInstancesEndIndex;l++){var c=e.symbolInstancesArray.get(l);c.textCollisionFeature={boxStartIndex:c.textBoxStartIndex,boxEndIndex:c.textBoxEndIndex},c.iconCollisionFeature={boxStartIndex:c.iconBoxStartIndex,boxEndIndex:c.iconBoxEndIndex};for(var h=0;h<2;h++){var p=c[0===h?"textCollisionFeature":"iconCollisionFeature"];if(p)for(var f=p.boxStartIndex;f<p.boxEndIndex;f++){var d=e.collisionBoxArray.get(f),m=d.anchorPoint,y=new o(d.x1,d.y1*u)._rotate(s),v=new o(d.x2,d.y1*u)._rotate(s),g=new o(d.x1,d.y2*u)._rotate(s),_=new o(d.x2,d.y2*u)._rotate(s),x=Math.max(0,Math.min(25,e.zoom+Math.log(d.maxScale)/Math.LN2)),b=Math.max(0,Math.min(25,e.zoom+Math.log(d.placementScale)/Math.LN2)),w=r.prepareSegment(4),E=w.vertexLength;n(i,m,y,x,b),n(i,m,v,x,b),n(i,m,_,x,b),n(i,m,g,x,b),a.emplaceBack(E,E+1),a.emplaceBa
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r.isOpaquePass||e.reverse()),r.renderLayer(r,t,o,e),r.currentLayer+=r.isOpaquePass?-1:1}},v.prototype.depthMask=function(t){t!==this._depthMask&&(this._depthMask=t,this.gl.depthMask(t))},v.prototype.renderLayer=function(t,e,r,i){r.isHidden(this.transform.zoom)||("background"===r.type||i.length)&&(this.id=r.id,y[r.type](t,e,r,i))},v.prototype.setDepthSublayer=function(t){var e=1-((1+this.currentLayer)*this.numSublayers+t)*this.depthEpsilon,r=e-1+this.depthRange;this.gl.depthRange(r,e)},v.prototype.translatePosMatrix=function(t,e,r,i){if(!r[0]&&!r[1])return t;if("viewport"===i){var o=Math.sin(-this.transform.angle),a=Math.cos(-this.transform.angle);r=[r[0]*a-r[1]*o,r[0]*o+r[1]*a]}var s=[u(e,r[0],this.transform.zoom),u(e,r[1],this.transform.zoom),0],l=new Float32Array(16);return n.translate(l,t,s),l},v.prototype.saveTileTexture=function(t){var e=this.reusableTextures.tiles[t.size];e?e.push(t):this.reusableTextures.tiles[t.size]=[t]},v.prototype.saveViewportTexture=function(t){this.reusableTextures.viewport=t},v.prototype.getTileTexture=function(t){var e=this.reusableTextures.tiles[t];return e&&e.length>0?e.pop():null},v.prototype.getViewportTexture=function(t,e){var r=this.reusableTextures.viewport;if(r)return r.width===t&&r.height===e?r:(this.gl.deleteTexture(r),void(this.reusableTextures.viewport=null))},v.prototype.lineWidth=function(t){this.gl.lineWidth(l.clamp(t,this.lineWidthRange[0],this.lineWidthRange[1]))},v.prototype.showOverdrawInspector=function(t){if(t||this._showOverdrawInspector){this._showOverdrawInspector=t;var e=this.gl;if(t){e.blendFunc(e.CONSTANT_COLOR,e.ONE);var r=8,i=1/r;e.blendColor(i,i,i,0),e.clearColor(0,0,0,1),e.clear(e.COLOR_BUFFER_BIT)}else e.blendFunc(e.ONE,e.ONE_MINUS_SRC_ALPHA)}},v.prototype.createProgram=function(t,e){var r=this.gl,n=r.createProgram(),o=m[t],a="#define MAPBOX_GL_JS\n#define DEVICE_PIXEL_RATIO "+i.devicePixelRatio.toFixed(1)+"\n";this._showOverdrawInspector&&(a+="#define OVERDRAW_INSPECTOR;\n");var s=r.createShader(r.FRAGMENT_SHADER);r.shaderSource(s,e.applyPragmas(a+m.prelude.fragmentSource+o.fragmentSource,"fragment")),r.compileShader(s),r.attachShader(n,s);var u=r.createShader(r.VERTEX_SHADER);r.shaderSource(u,e.applyPragmas(a+m.prelude.vertexSource+o.vertexSource,"vertex")),r.compileShader(u),r.attachShader(n,u),r.linkProgram(n);for(var l=r.getProgramParameter(n,r.ACTIVE_ATTRIBUTES),c={program:n,numAttributes:l},h=0;h<l;h++){var p=r.getActiveAttrib(n,h);c[p.name]=r.getAttribLocation(n,p.name)}for(var f=r.getProgramParameter(n,r.ACTIVE_UNIFORMS),d=0;d<f;d++){var y=r.getActiveUniform(n,d);c[y.name]=r.getUniformLocation(n,y.name)}return c},v.prototype._createProgramCached=function(t,e){this.cache=this.cache||{};var r=""+t+(e.cacheKey||"")+(this._showOverdrawInspector?"/overdraw":"");return this.cache[r]||(this.cache[r]=this.createProgram(t,e)),this.cache[r]},v.prototype.useProgram=function(t,e){var r=this.gl,i=this._createProgramCached(t,e||this.emptyProgramConfiguration);return this.currentProgram!==i&&(r.useProgram(i.program),this.currentProgram=i),i},e.exports=v},{"../data/buffer":8,"../data/extent":11,"../data/pos_array":14,"../data/program_configuration":15,"../data/raster_bounds_array":16,"../source/pixels_to_tile_units":46,"../source/source_cache":51,"../util/browser":110,"../util/util":129,"./draw_background":25,"./draw_circle":26,"./draw_debug":28,"./draw_fill":29,"./draw_fill_extrusion":30,"./draw_line":31,"./draw_raster":32,"./draw_symbol":33,"./frame_history":34,"./shaders":38,"./vertex_array_object":39,"@mapbox/gl-matrix":133}],37:[function(t,e,r){"use strict";var i=t("../source/pixels_to_tile_units");r.prepare=function(t,e,r){var i=e.gl,n=e.spriteAtlas.getPosition(t.from,!0),o=e.spriteAtlas.getPosition(t.to,!0);n&&o&&(i.uniform1i(r.u_image,0),i.uniform2fv(r.u_pattern_tl_a,n.tl),i.uniform2fv(r.u_pattern_br_a,n.br),i.uniform2fv(r.u_pattern_tl_b,o.tl),i.uniform2fv(r.u_pattern_br_b,o.br),i.uniform1f(r.u_mix,t.t),i.uniform2fv(r.u_pattern_size_a,n.size),i.uniform2fv(r.u_pattern_size_b,o.size),i.uniform1f(r.u_scale_a,t.fromScale),i.uniform1f(r.u_scale_b,t.toScale),i.a
vertexSource:"// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\n// We scale the distance before adding it to the buffers so that we can store\n// long distances for long segments. Use this value to unscale the distance.\n#define LINE_DISTANCE_SCALE 2.0\n\n// the distance over which the line edge fades out.\n// Retina devices need a smaller distance to avoid aliasing.\n#define ANTIALIASING 1.0 / DEVICE_PIXEL_RATIO / 2.0\n\nattribute vec2 a_pos;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform vec2 u_patternscale_a;\nuniform float u_tex_y_a;\nuniform vec2 u_patternscale_b;\nuniform float u_tex_y_b;\nuniform vec2 u_gl_units_to_pixels;\nuniform mediump float u_width;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying vec2 v_tex_a;\nvarying vec2 v_tex_b;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize mediump float gapwidth\n    #pragma mapbox: initialize lowp float offset\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n    float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE;\n\n    // We store the texture normals in the most insignificant bit\n    // transform y so that 0 => -1 and 1 => 1\n    // In the texture normal, x is 0 if the normal points straight up/down and 1 if it's a round cap\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = mod(a_pos, 2.0);\n    normal.y = sign(normal.y - 0.5);\n    v_normal = normal;\n\n    // these transformations used to be applied in the JS and native code bases. \n    // moved them into the shader for clarity and simplicity. \n    gapwidth = gapwidth / 2.0;\n    float width = u_width / 2.0;\n    offset = -1.0 * offset;\n \n    float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);\n    float outset = gapwidth + width * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist =outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset2 = offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    // Remove the texture normal bit to get the position\n    vec2 pos = floor(a_pos * 0.5);\n\n    vec4 projected_extrude = u_matrix * vec4(dist / u_ratio, 0.0, 0.0);\n    gl_Position = u_matrix * vec4(pos + offset2 / u_ratio, 0.0, 1.0) + projected_extrude;\n\n    // calculate how much the perspective view squishes or stretches the extrude\n    float extrude_length_without_perspective = length(dist);\n    float extrude_length_with_perspective = length(projected_extrude.xy / gl_Position.w * u_gl_units_to_pixels);\n    v_gamma_scale = extrude_length_without_perspective / extrude_length_with_perspective;\n\n    v_tex_a = vec2(a_linesofar * u_patternscale_a.x, normal.y * u_patternscale_a.y + u_tex_y_a);\n    v_tex_b = vec2(a_linesofar * u_patternscale_b.x, normal.y * u_patternscale_b.y + u_tex_y_b);\n\n    v_width2 = vec2(outset, inset);\n}\n"},raster:{fragmentSou
i._cache.get(t.id)}},e.prototype.updateCacheSize=function(t){var e=Math.ceil(t.width/t.tileSize)+1,r=Math.ceil(t.height/t.tileSize)+1,i=e*r,n=5;this._cache.setMaxSize(Math.floor(i*n))},e.prototype.update=function(t){var r=this;if(this._sourceLoaded){var i,n,a,s;this.updateCacheSize(t);var u=(this._source.roundZoom?Math.round:Math.floor)(this.getZoom(t)),c=Math.max(u-e.maxOverzooming,this._source.minzoom),h=Math.max(u+e.maxUnderzooming,this._source.minzoom),f={};this._coveredTiles={};var d;for(d=this.used?this._source.coord?[this._source.coord]:t.coveringTiles({tileSize:this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom,reparseOverscaled:this._source.reparseOverscaled}):[],i=0;i<d.length;i++)n=d[i],a=r.addTile(n),f[n.id]=!0,a.hasData()||r.findLoadedChildren(n,h,f)||(s=r.findLoadedParent(n,c,f),s&&r.addTile(s.coord));var m={};if(o(this._source.type))for(var y=Object.keys(f),v=0;v<y.length;v++){var g=y[v];n=l.fromID(g),a=r._tiles[g],a&&("undefined"==typeof a.fadeEndTime||a.fadeEndTime>=Date.now())&&(r.findLoadedChildren(n,h,f)&&(f[g]=!0),s=r.findLoadedParent(n,c,m),s&&r.addTile(s.coord))}var _;for(_ in m)f[_]||(r._coveredTiles[_]=!0);for(_ in m)f[_]=!0;var x=p.keysDifference(this._tiles,f);for(i=0;i<x.length;i++)r.removeTile(+x[i]);this.transform=t}},e.prototype.addTile=function(t){var e=this._tiles[t.id];if(e)return e;var r=t.wrapped();if(e=this._tiles[r.id],e||(e=this._cache.get(r.id),e&&(e.redoPlacement(this._source),this._cacheTimers[r.id]&&(clearTimeout(this._cacheTimers[r.id]),this._cacheTimers[r.id]=void 0,this._setTileReloadTimer(r.id,e)))),!e){var i=t.z,n=i>this._source.maxzoom?Math.pow(2,i-this._source.maxzoom):1;e=new s(r,this._source.tileSize*n,this._source.maxzoom),this.loadTile(e,this._tileLoaded.bind(this,e,t.id))}return e.uses++,this._tiles[t.id]=e,this._source.fire("dataloading",{tile:e,coord:e.coord,dataType:"tile"}),e},e.prototype._setTileReloadTimer=function(t,e){var r=this,i=e.getExpiry();i&&(this._timers[t]=setTimeout(function(){r.reloadTile(t,"expired"),r._timers[t]=void 0},i-(new Date).getTime()))},e.prototype._setCacheInvalidationTimer=function(t,e){var r=this,i=e.getExpiry();i&&(this._cacheTimers[t]=setTimeout(function(){r._cache.remove(t),r._cacheTimers[t]=void 0},i-(new Date).getTime()))},e.prototype.removeTile=function(t){var e=this._tiles[t];if(e&&(e.uses--,delete this._tiles[t],this._timers[t]&&(clearTimeout(this._timers[t]),this._timers[t]=void 0),this._source.fire("data",{tile:e,coord:e.coord,dataType:"tile"}),!(e.uses>0)))if(e.hasData()){var r=e.coord.wrapped().id;this._cache.add(r,e),this._setCacheInvalidationTimer(r,e)}else e.aborted=!0,this.abortTile(e),this.unloadTile(e)},e.prototype.clearTiles=function(){var t=this;for(var e in this._tiles)t.removeTile(e);this._cache.reset()},e.prototype.tilesIn=function(t){for(var e=this,r={},n=this.getIds(),o=1/0,a=1/0,s=-(1/0),u=-(1/0),c=t[0].zoom,p=0;p<t.length;p++){var d=t[p];o=Math.min(o,d.column),a=Math.min(a,d.row),s=Math.max(s,d.column),u=Math.max(u,d.row)}for(var m=0;m<n.length;m++){var y=e._tiles[n[m]],v=l.fromID(n[m]),g=[i(v,y.sourceMaxZoom,new h(o,a,c)),i(v,y.sourceMaxZoom,new h(s,u,c))];if(g[0].x<f&&g[0].y<f&&g[1].x>=0&&g[1].y>=0){for(var _=[],x=0;x<t.length;x++)_.push(i(v,y.sourceMaxZoom,t[x]));var b=r[y.coord.id];void 0===b&&(b=r[y.coord.id]={tile:y,coord:v,queryGeometry:[],scale:Math.pow(2,e.transform.zoom-y.coord.z)}),b.queryGeometry.push(_)}}var w=[];for(var E in r)w.push(r[E]);return w},e.prototype.redoPlacement=function(){for(var t=this,e=this.getIds(),r=0;r<e.length;r++){var i=t.getTileByID(e[r]);i.redoPlacement(t._source)}},e.prototype.getVisibleCoordinates=function(){for(var t=this,e=this.getRenderableIds().map(l.fromID),r=0,i=e;r<i.length;r+=1){var n=i[r];n.posMatrix=t.transform.calculatePosMatrix(n,t._source.maxzoom)}return e},e}(u);d.maxOverzooming=10,d.maxUnderzooming=3,e.exports=d},{"../data/extent":11,"../geo/coordinate":18,"../util/evented":118,"../util/lru_cache":124,"../util/util":129,"./source":50,"./tile":52,"./tile_coord":53}],52:[function(t,e,r){"use str
this._updatedAllPaintProps=!1},e.prototype.setState=function(t){var e=this;if(this._checkLoaded(),y.emitErrors(this,y(t)))return!1;t=c.extend({},t),t.layers=E(t.layers);var r=T(this.serialize(),t).filter(function(t){return!(t.command in A)});if(0===r.length)return!1;var i=r.filter(function(t){return!(t.command in z)});if(i.length>0)throw new Error("Unimplemented: "+i.map(function(t){return t.command}).join(", ")+".");return r.forEach(function(t){"setTransition"!==t.command&&e[t.command].apply(e,t.args)}),this.stylesheet=t,!0},e.prototype.addSource=function(t,e,r){if(this._checkLoaded(),void 0!==this.sourceCaches[t])throw new Error("There is already a source with this ID");if(!e.type)throw new Error("The type property must be defined, but the only the following properties were given: "+Object.keys(e)+".");var i=["vector","raster","geojson","video","image","canvas"],n=i.indexOf(e.type)>=0;if(!n||!this._validate(y.source,"sources."+t,e,null,r)){var o=this.sourceCaches[t]=new _(t,e,this.dispatcher);o.style=this,o.setEventedParent(this,function(){return{isSourceLoaded:o.loaded(),source:o.serialize(),sourceId:t}}),o.onAdd(this.map),this._changed=!0}},e.prototype.removeSource=function(t){if(this._checkLoaded(),void 0===this.sourceCaches[t])throw new Error("There is no source with this ID");var e=this.sourceCaches[t];delete this.sourceCaches[t],delete this._updatedSources[t],e.setEventedParent(null),e.clearTiles(),e.onRemove&&e.onRemove(this.map),this._changed=!0},e.prototype.getSource=function(t){return this.sourceCaches[t]&&this.sourceCaches[t].getSource()},e.prototype.addLayer=function(t,e,r){this._checkLoaded();var i=t.id;if("object"==typeof t.source&&(this.addSource(i,t.source),t=c.extend(t,{source:i})),!this._validate(y.layer,"layers."+i,t,{arrayIndex:-1},r)){var o=n.create(t);this._validateLayer(o),o.setEventedParent(this,{layer:{id:i}});var a=e?this._order.indexOf(e):this._order.length;if(this._order.splice(a,0,i),this._layers[i]=o,this._removedLayers[i]&&o.source){var s=this._removedLayers[i];delete this._removedLayers[i],this._updatedSources[o.source]=s.type!==o.type?"clear":"reload"}this._updateLayer(o),"symbol"===o.type&&(this._updatedSymbolOrder=!0),this.updateClasses(i)}},e.prototype.moveLayer=function(t,e){this._checkLoaded(),this._changed=!0;var r=this._layers[t];if(!r)return void this.fire("error",{error:new Error("The layer '"+t+"' does not exist in the map's style and cannot be moved.")});var i=this._order.indexOf(t);this._order.splice(i,1);var n=e?this._order.indexOf(e):this._order.length;this._order.splice(n,0,t),"symbol"===r.type&&(this._updatedSymbolOrder=!0,r.source&&!this._updatedSources[r.source]&&(this._updatedSources[r.source]="reload"))},e.prototype.removeLayer=function(t){this._checkLoaded();var e=this._layers[t];if(!e)return void this.fire("error",{error:new Error("The layer '"+t+"' does not exist in the map's style and cannot be removed.")});e.setEventedParent(null);var r=this._order.indexOf(t);this._order.splice(r,1),"symbol"===e.type&&(this._updatedSymbolOrder=!0),this._changed=!0,this._removedLayers[t]=e,delete this._layers[t],delete this._updatedLayers[t],delete this._updatedPaintProps[t]},e.prototype.getLayer=function(t){return this._layers[t]},e.prototype.setLayerZoomRange=function(t,e,r){this._checkLoaded();var i=this.getLayer(t);return i?void(i.minzoom===e&&i.maxzoom===r||(null!=e&&(i.minzoom=e),null!=r&&(i.maxzoom=r),this._updateLayer(i))):void this.fire("error",{error:new Error("The layer '"+t+"' does not exist in the map's style and cannot have zoom extent.")})},e.prototype.setFilter=function(t,e){this._checkLoaded();var r=this.getLayer(t);return r?void(null!==e&&void 0!==e&&this._validate(y.filter,"layers."+r.id+".filter",e)||c.deepEqual(r.filter,e)||(r.filter=c.clone(e),this._updateLayer(r))):void this.fire("error",{error:new Error("The layer '"+t+"' does not exist in the map's style and cannot be filtered.")})},e.prototype.getFilter=function(t){return c.clone(this.getLayer(t).filter)},e.prototype.setLayoutProperty=function(t,e,r){this._checkLoaded();var i=this.getLayer(t);return i?v
this.width=a,this.height=a,this.bin=new i(this.width,this.height),this.index={},this.ids={},this.data=new Uint8Array(this.width*this.height)};u.prototype.getGlyphs=function(){var t,e,r,i={};for(var n in this.ids)t=n.split("#"),e=t[0],r=t[1],i[e]||(i[e]=[]),i[e].push(r);return i},u.prototype.getRects=function(){var t,e,r,i=this,n={};for(var o in this.ids)t=o.split("#"),e=t[0],r=t[1],n[e]||(n[e]={}),n[e][r]=i.index[o];return n},u.prototype.addGlyph=function(t,e,r,i){var o=this;if(!r)return null;var a=e+"#"+r.id;if(this.index[a])return this.ids[a].indexOf(t)<0&&this.ids[a].push(t),this.index[a];if(!r.bitmap)return null;var s=r.width+2*i,u=r.height+2*i,l=1,c=s+2*l,h=u+2*l;c+=4-c%4,h+=4-h%4;var p=this.bin.packOne(c,h);if(p||(this.resize(),p=this.bin.packOne(c,h)),!p)return n.warnOnce("glyph bitmap overflow"),null;this.index[a]=p,this.ids[a]=[t];for(var f=this.data,d=r.bitmap,m=0;m<u;m++)for(var y=o.width*(p.y+m+l)+p.x+l,v=s*m,g=0;g<s;g++)f[y+g]=d[v+g];return this.dirty=!0,p},u.prototype.resize=function(){var t=this,e=this.width,r=this.height;if(!(e>=s||r>=s)){this.texture&&(this.gl&&this.gl.deleteTexture(this.texture),this.texture=null),this.width*=o,this.height*=o,this.bin.resize(this.width,this.height);for(var i=new ArrayBuffer(this.width*this.height),n=0;n<r;n++){var a=new Uint8Array(t.data.buffer,r*n,e),u=new Uint8Array(i,r*n*o,e);u.set(a)}this.data=new Uint8Array(i)}},u.prototype.bind=function(t){this.gl=t,this.texture?t.bindTexture(t.TEXTURE_2D,this.texture):(this.texture=t.createTexture(),t.bindTexture(t.TEXTURE_2D,this.texture),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.LINEAR),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.LINEAR),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE),t.texImage2D(t.TEXTURE_2D,0,t.ALPHA,this.width,this.height,0,t.ALPHA,t.UNSIGNED_BYTE,null))},u.prototype.updateTexture=function(t){this.bind(t),this.dirty&&(t.texSubImage2D(t.TEXTURE_2D,0,0,0,this.width,this.height,t.ALPHA,t.UNSIGNED_BYTE,this.data),this.dirty=!1)},e.exports=u},{"../util/util":129,"shelf-pack":200}],83:[function(t,e,r){"use strict";function i(t,e,r,i){return i=i||"abc",r.replace("{s}",i[t.length%i.length]).replace("{fontstack}",t).replace("{range}",e)}var n=t("../util/mapbox").normalizeGlyphsURL,o=t("../util/ajax"),a=t("../util/verticalize_punctuation"),s=t("../util/glyphs"),u=t("../symbol/glyph_atlas"),l=t("pbf"),c=function(t,e,r){var i=1;this.advance=t.advance,this.left=t.left-r-i,this.top=t.top+r+i,this.rect=e},h=function(t){this.url=t&&n(t),this.atlases={},this.stacks={},this.loading={}};h.prototype.getSimpleGlyphs=function(t,e,r,i){var n=this;void 0===this.stacks[t]&&(this.stacks[t]={}),void 0===this.atlases[t]&&(this.atlases[t]=new u);for(var o={},s=this.stacks[t],l=this.atlases[t],h=3,p={},f=0,d=function(e){var i=Math.floor(e/256);if(s[i]){var n=s[i].glyphs[e],a=l.addGlyph(r,t,n,h);n&&(o[e]=new c(n,a,h))}else void 0===p[i]&&(p[i]=[],f++),p[i].push(e)},m=0;m<e.length;m++){var y=e[m],v=String.fromCharCode(y);d(y),a.lookup[v]&&d(a.lookup[v].charCodeAt(0))}f||i(void 0,o,t);var g=function(e,a,s){if(!e)for(var u=n.stacks[t][a]=s.stacks[0],d=0;d<p[a].length;d++){var m=p[a][d],y=u.glyphs[m],v=l.addGlyph(r,t,y,h);y&&(o[m]=new c(y,v,h))}f--,f||i(void 0,o,t)};for(var _ in p)n.loadRange(t,_,g)},h.prototype.loadRange=function(t,e,r){if(256*e>65535)return r("glyphs > 65535 not supported");void 0===this.loading[t]&&(this.loading[t]={});var n=this.loading[t];if(n[e])n[e].push(r);else{n[e]=[r];var a=256*e+"-"+(256*e+255),u=i(t,a,this.url);o.getArrayBuffer(u,function(t,r){for(var i=!t&&new s(new l(r.data)),o=0;o<n[e].length;o++)n[e][o](t,e,i);delete n[e]})}},h.prototype.getGlyphAtlas=function(t){return this.atlases[t]},e.exports=h},{"../symbol/glyph_atlas":82,"../util/ajax":109,"../util/glyphs":120,"../util/mapbox":125,"../util/verticalize_punctuation":131,pbf:196}],84:[function(t,e,r){"use strict";e.exports=function(t){function e(e){s.push(t[e]),u++}function r(t,e,r){var i=a[t];return delete a[t],a[e]=i,s[i].geometry[0].pop(),s[i].geometry[0]=s[
n.enableDrag(),this._map.getCanvasContainer().dispatchEvent(i(t)),t.stopPropagation())},u.prototype._createButton=function(t,e,r){var i=n.create("button",t,this._container);return i.type="button",i.setAttribute("aria-label",e),i.addEventListener("click",function(){r()}),i},e.exports=u},{"../../util/dom":117,"../../util/util":129,"../../util/window":112}],96:[function(t,e,r){"use strict";function i(t,e,r){var i=r&&r.maxWidth||100,a=t._container.clientHeight/2,s=o(t.unproject([0,a]),t.unproject([i,a]));if(r&&"imperial"===r.unit){var u=3.2808*s;if(u>5280){var l=u/5280;n(e,i,l,"mi")}else n(e,i,u,"ft")}else n(e,i,s,"m")}function n(t,e,r,i){var n=a(r),o=n/r;"m"===i&&n>=1e3&&(n/=1e3,i="km"),t.style.width=e*o+"px",t.innerHTML=n+i}function o(t,e){var r=6371e3,i=Math.PI/180,n=t.lat*i,o=e.lat*i,a=Math.sin(n)*Math.sin(o)+Math.cos(n)*Math.cos(o)*Math.cos((e.lng-t.lng)*i),s=r*Math.acos(Math.min(a,1));return s}function a(t){var e=Math.pow(10,(""+Math.floor(t)).length-1),r=t/e;return r=r>=10?10:r>=5?5:r>=3?3:r>=2?2:1,e*r}var s=t("../../util/dom"),u=t("../../util/util"),l=function(t){this.options=t,u.bindAll(["_onMove"],this)};l.prototype.getDefaultPosition=function(){return"bottom-left"},l.prototype._onMove=function(){i(this._map,this._container,this.options)},l.prototype.onAdd=function(t){return this._map=t,this._container=s.create("div","mapboxgl-ctrl mapboxgl-ctrl-scale",t.getContainer()),this._map.on("move",this._onMove),this._onMove(),this._container},l.prototype.onRemove=function(){this._container.parentNode.removeChild(this._container),this._map.off("move",this._onMove),this._map=void 0},e.exports=l},{"../../util/dom":117,"../../util/util":129}],97:[function(t,e,r){"use strict";var i=t("../../util/dom"),n=t("../../geo/lng_lat_bounds"),o=t("../../util/util"),a=t("../../util/window"),s=function(t){this._map=t,this._el=t.getCanvasContainer(),this._container=t.getContainer(),o.bindAll(["_onMouseDown","_onMouseMove","_onMouseUp","_onKeyDown"],this)};s.prototype.isEnabled=function(){return!!this._enabled},s.prototype.isActive=function(){return!!this._active},s.prototype.enable=function(){this.isEnabled()||(this._el.addEventListener("mousedown",this._onMouseDown,!1),this._enabled=!0)},s.prototype.disable=function(){this.isEnabled()&&(this._el.removeEventListener("mousedown",this._onMouseDown),this._enabled=!1)},s.prototype._onMouseDown=function(t){t.shiftKey&&0===t.button&&(a.document.addEventListener("mousemove",this._onMouseMove,!1),a.document.addEventListener("keydown",this._onKeyDown,!1),a.document.addEventListener("mouseup",this._onMouseUp,!1),i.disableDrag(),this._startPos=i.mousePos(this._el,t),this._active=!0)},s.prototype._onMouseMove=function(t){var e=this._startPos,r=i.mousePos(this._el,t);this._box||(this._box=i.create("div","mapboxgl-boxzoom",this._container),this._container.classList.add("mapboxgl-crosshair"),this._fireEvent("boxzoomstart",t));var n=Math.min(e.x,r.x),o=Math.max(e.x,r.x),a=Math.min(e.y,r.y),s=Math.max(e.y,r.y);i.setTransform(this._box,"translate("+n+"px,"+a+"px)"),this._box.style.width=o-n+"px",this._box.style.height=s-a+"px"},s.prototype._onMouseUp=function(t){if(0===t.button){var e=this._startPos,r=i.mousePos(this._el,t),o=(new n).extend(this._map.unproject(e)).extend(this._map.unproject(r));this._finish(),e.x===r.x&&e.y===r.y?this._fireEvent("boxzoomcancel",t):this._map.fitBounds(o,{linear:!0}).fire("boxzoomend",{originalEvent:t,boxZoomBounds:o})}},s.prototype._onKeyDown=function(t){27===t.keyCode&&(this._finish(),this._fireEvent("boxzoomcancel",t))},s.prototype._finish=function(){this._active=!1,a.document.removeEventListener("mousemove",this._onMouseMove,!1),a.document.removeEventListener("keydown",this._onKeyDown,!1),a.document.removeEventListener("mouseup",this._onMouseUp,!1),this._container.classList.remove("mapboxgl-crosshair"),this._box&&(this._box.parentNode.removeChild(this._box),this._box=null),i.enableDrag()},s.prototype._fireEvent=function(t,e){return this._map.fire(t,{originalEvent:e})},e.exports=s},{"../../geo/lng_lat_bounds":20,"../../util/dom":117,"../../util/util":129,"../../util/window
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