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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this.gl.depthRange(r,e)},v.prototype.translatePosMatrix=function(t,e,r,n){if(!r[0]&&!r[1])return t;if("viewport"===n){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 i.translate(l,t,s),l},v.prototype.saveTileTexture=function(t){var e=this.reusableTextures[t.size];e?e.push(t):this.reusableTextures[t.size]=[t]},v.prototype.saveViewportTexture=function(t){this.reusableTextures.viewport||(this.reusableTextures.viewport={}),this.reusableTextures.viewport.texture=t},v.prototype.getTileTexture=function(t,e){var r=this.reusableTextures[t];if(r){var n=r[e||t];return n&&n.length>0?n.pop():null}},v.prototype.getViewportTexture=function(t,e){if(this.reusableTextures.viewport){var r=this.reusableTextures.viewport.texture;return r.width===t&&r.height===e?r:(this.gl.deleteTexture(r),void(this.reusableTextures.viewport.texture=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,n=1/r;e.blendColor(n,n,n,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,i=r.createProgram(),o=m[t],a="#define MAPBOX_GL_JS\n#define DEVICE_PIXEL_RATIO "+n.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(i,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(i,u),r.linkProgram(i);for(var l=r.getProgramParameter(i,r.ACTIVE_ATTRIBUTES),c={program:i,numAttributes:l},p=0;p<l;p++){var h=r.getActiveAttrib(i,p);c[h.name]=r.getAttribLocation(i,h.name)}for(var f=r.getProgramParameter(i,r.ACTIVE_UNIFORMS),d=0;d<f;d++){var y=r.getActiveUniform(i,d);c[y.name]=r.getUniformLocation(i,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,n=this._createProgramCached(t,e||this.emptyProgramConfiguration);return this.currentProgram!==n&&(r.useProgram(n.program),this.currentProgram=n),n},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":45,"../source/source_cache":49,"../util/browser":108,"../util/util":127,"./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":131}],37:[function(t,e,r){"use strict";var n=t("../source/pixels_to_tile_units");r.prepare=function(t,e,r){var n=e.gl,i=e.spriteAtlas.getPosition(t.from,!0),o=e.spriteAtlas.getPosition(t.to,!0);i&&o&&(n.uniform1i(r.u_image,0),n.uniform2fv(r.u_pattern_tl_a,i.tl),n.uniform2fv(r.u_pattern_br_a,i.br),n.uniform2fv(r.u_pattern_tl_b,o.tl),n.uniform2fv(r.u_pattern_br_b,o.br),n.uniform1f(r.u_mix,t.t),n.uniform2fv(r.u_pattern_size_a,i.size),n.uniform2fv(r.u_pattern_size_b,o.size),n.uniform1f(r.u_scale_a,t.fromScale),n.uniform1f(r.u_scale_b,t.toScale),n.activeTexture(n.TEXTURE0),e.spriteAtlas.bind(n,!0))},r.setTile=function(t,e,r){var i=e.gl;i.uniform1f(r.u_tile_units_to_pixels,1/n(t,1,e.transform.tileZoom));var o=Math.pow(2,t.coord.z),a=t.tileSize*Math.pow(2,e.transform.tileZoom)/o,s=a*(t.coord.x+t.coord.w*o),u=a*t.coord.y;i.uniform2f(r.u_pixel_coord_upper,s>>16,u>>16),i.uniform2f(r.u
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
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 n=t.getTileByID(e[r]);n.redoPlacement(t._source)}},e.prototype.getVisibleCoordinates=function(){for(var t=this,e=this.getRenderableIds().map(u.fromID),r=0,n=e;r<n.length;r+=1){var i=n[r];i.posMatrix=t.transform.calculatePosMatrix(i,t._source.maxzoom)}return e},e}(s);f.maxOverzooming=10,f.maxUnderzooming=3,e.exports=f},{"../data/extent":11,"../geo/coordinate":18,"../util/evented":116,"../util/lru_cache":122,"../util/util":127,"./source":48,"./tile":50,"./tile_coord":51}],50:[function(t,e,r){"use strict";var n=t("../util/util"),i=t("../data/bucket"),o=t("../data/feature_index"),a=t("vector-tile"),s=t("pbf"),u=t("../util/vectortile_to_geojson"),l=t("feature-filter"),c=t("../symbol/collision_tile"),p=t("../symbol/collision_box"),h=t("../symbol/symbol_instances"),f=t("../symbol/symbol_quads"),d=function(t,e,r){this.coord=t,this.uid=n.uniqueId(),this.uses=0,this.tileSize=e,this.sourceMaxZoom=r,this.buckets={},this.state="loading"};d.prototype.registerFadeDuration=function(t,e){var r=e+this.timeAdded;r<Date.now()||this.fadeEndTime&&r<this.fadeEndTime||(this.fadeEndTime=r,t.set(this.fadeEndTime-Date.now()))},d.prototype.loadVectorData=function(t,e){this.hasData()&&this.unloadVectorData(e),this.state="loaded",t&&(t.rawTileData&&(this.rawTileData=t.rawTileData),this.collisionBoxArray=new p(t.collisionBoxArray),this.collisionTile=new c(t.collisionTile,this.collisionBoxArray),this.symbolInstancesArray=new h(t.symbolInstancesArray),this.symbolQuadsArray=new f(t.symbolQuadsArray),this.featureIndex=new o(t.featureIndex,this.rawTileData,this.collisionTile),this.buckets=i.deserialize(t.buckets,e.style))},d.prototype.reloadSymbolData=function(t,e){var r=this;if("unloaded"!==this.state){this.collisionTile=new c(t.collisionTile,this.collisionBoxArray),this.featureIndex.setCollisionTile(this.collisionTile);for(var o in this.buckets){var a=r.buckets[o];"symbol"===a.type&&(a.destroy(),delete r.buckets[o])}n.extend(this.buckets,i.deserialize(t.buckets,e))}},d.prototype.unloadVectorData=function(){var t=this;for(var e in this.buckets)t.buckets[e].destroy();this.buckets={},this.collisionBoxArray=null,this.symbolQuadsArray=null,this.symbolInstancesArray=null,this.collisionTile=null,this.featureIndex=null,this.state="unloaded"},d.prototype.redoPlacement=function(t){function e(e,r){this.reloadSymbolData(r,t.map.style),t.fire("data",{tile:this,coord:this.coord,dataType:"tile"}),t.map&&(t.map.painter.tileExtentVAO.vao=null),this.state="loaded",this.redoWhenDone&&(this.redoPlacement(t),this.redoWhenDone=!1)}if("vector"===t.type||"geojson"===t.type){if("loaded"!==this.state||"reloading"===this.state)return void(this.redoWhenDone=!0);this.state="reloading",t.dispatcher.send("redoPlacement",{type:t.type,uid:this.uid,source:t.id,angle:t.map.transform.angle,pitch:t.map.transform.pitch,showCollisionBoxes:t.map.showCollisionBoxes},e.bind(this),this.workerID)}},d.prototype.getBucket=function(t){return this.buckets[t.id]},d.prototype.querySourceFeatures=function(t,e){var r=this;if(this.rawTileData){this.vtLayers||(this.vtLayers=new a.VectorTile(new s(this.rawTileData)).layers);var n=this.vtLayers._geojsonTileLayer||this.vtLayers[e.sourceLayer];if(n)for(var i=l(e&&e.filter),o={z:this.coord.z,x:this.coord.x,y:this.coord.y},c=0;c<n.length;c++){var p=n.feature(c);if(i(p)){var h=new u(p,r.coord.z,r.coord.x,r.coord.y);h.tile=o,t.push(h)}}}},d.prototype.hasData=function(){return"loaded"===this.state||"reloading"===this.state},e.exports=d},{"../data/bucket":2,"../data/feature_index":12,"../symbol/collision_box":76,"../symbol/collision_tile":78,"../symbol/symbol_instances":87,"../symbol/symbol_quads":88,"../util/util":127,"../util/vectortile_to_geojson":128,"feature-filter":135,pbf:193,"vector-tile":204}],51:[function(t,e,r){"use strict";function n(t,e){if(t.row>e.row){var r=t;t=e,e=r}return{x0:t.column,y0:t.row,x1:e.column,y1:e.row,dx:e.column-
sources:c.mapObject(this.sourceCaches,function(t){return t.serialize()}),layers:this._order.map(function(e){return t._layers[e].serialize()})},function(t){return void 0!==t})},e.prototype._updateLayer=function(t){this._updatedLayers[t.id]=!0,t.source&&!this._updatedSources[t.source]&&(this._updatedSources[t.source]="reload"),this._changed=!0},e.prototype._flattenRenderedFeatures=function(t){for(var e=this,r=[],n=this._order.length-1;n>=0;n--)for(var i=e._order[n],o=0,a=t;o<a.length;o+=1){var s=a[o],u=s[i];if(u)for(var l=0,c=u;l<c.length;l+=1){var p=c[l];r.push(p)}}return r},e.prototype.queryRenderedFeatures=function(t,e,r,n){var i=this;e&&e.filter&&this._validate(y.filter,"queryRenderedFeatures.filter",e.filter);var o={};if(e&&e.layers)for(var a=0,s=e.layers;a<s.length;a+=1){var u=s[a],l=i._layers[u];if(!l)return void i.fire("error",{error:"The layer '"+u+"' does not exist in the map's style and cannot be queried for features."});o[l.source]=!0}var c=[];for(var p in this.sourceCaches)if(!e.layers||o[p]){var h=g.rendered(i.sourceCaches[p],i._layers,t,e,r,n);c.push(h)}return this._flattenRenderedFeatures(c)},e.prototype.querySourceFeatures=function(t,e){e&&e.filter&&this._validate(y.filter,"querySourceFeatures.filter",e.filter);var r=this.sourceCaches[t];return r?g.source(r,e):[]},e.prototype.addSourceType=function(t,e,r){return v.getType(t)?r(new Error('A source type called "'+t+'" already exists.')):(v.setType(t,e),e.workerSourceURL?void this.dispatcher.broadcast("loadWorkerSource",{name:t,url:e.workerSourceURL},r):r(null,null))},e.prototype.getLight=function(){return this.light.getLight()},e.prototype.setLight=function(t,e){this._checkLoaded();var r=this.light.getLight(),n=!1;for(var i in t)if(!c.deepEqual(t[i],r[i])){n=!0;break}if(n){var o=this.stylesheet.transition||{};this.light.setLight(t),this.light.updateLightTransitions(e||{transition:!0},o,this.animationLoop)}},e.prototype._validate=function(t,e,r,n,i){return(!i||i.validate!==!1)&&y.emitErrors(this,t.call(y,c.extend({key:e,style:this.serialize(),value:r,styleSpec:x},n)))},e.prototype._remove=function(){var t=this;for(var e in this.sourceCaches)t.sourceCaches[e].clearTiles();this.dispatcher.remove()},e.prototype._clearSource=function(t){this.sourceCaches[t].clearTiles()},e.prototype._reloadSource=function(t){this.sourceCaches[t].reload()},e.prototype._updateSources=function(t){var e=this;for(var r in this.sourceCaches)e.sourceCaches[r].update(t)},e.prototype._redoPlacement=function(){var t=this;for(var e in this.sourceCaches)t.sourceCaches[e].redoPlacement()},e.prototype.getIcons=function(t,e,r){var n=this,i=function(){n.spriteAtlas.setSprite(n.sprite),n.spriteAtlas.addIcons(e.icons,r)};this.sprite.loaded()?i():this.sprite.on("data",i)},e.prototype.getGlyphs=function(t,e,r){function n(t,e,n){t&&console.error(t),s[n]=e,a--,0===a&&r(null,s)}var i=this,o=e.stacks,a=Object.keys(o).length,s={};for(var u in o)i.glyphSource.getSimpleGlyphs(u,o[u],e.uid,n)},e}(n);e.exports=A},{"../global_worker_pool":22,"../render/line_atlas":35,"../source/query_features":46,"../source/source":48,"../source/source_cache":49,"../symbol/glyph_source":81,"../symbol/sprite_atlas":86,"../util/ajax":107,"../util/browser":108,"../util/dispatcher":114,"../util/evented":116,"../util/mapbox":123,"../util/util":127,"./animation_loop":57,"./image_sprite":58,"./light":59,"./style_layer":63,"./style_spec":70,"./validate_style":72,"mapbox-gl-function":161,"mapbox-gl-style-spec/lib/deref":162,"mapbox-gl-style-spec/lib/diff":163}],62:[function(t,e,r){"use strict";var n=t("mapbox-gl-function"),i=t("./parse_color"),o=t("../util/util"),a=function(t,e){var r=this;this.value=o.clone(e),this.isFunction=n.isFunctionDefinition(e),this.json=JSON.stringify(this.value),this.minimum=t.minimum,this.isColor="color"===t.type;var a=this.isColor&&this.value?i(this.value):e,s=t.default;if(s&&"color"===t.type&&(s=i(s)),this.function=n[t.function||"piecewise-constant"](a,s),this.isFeatureConstant=this.function.isFeatureConstant,this.isZoomConstant=this.function.isZoomConstant,!this.isFeatureConstant&&!this.isZoomConstant){
h=h.matMult(G),f=f.matMult(G),m=m.matMult(G),d=d.matMult(G)}return[new n(new s(t.x,t.y),h,f,m,d,e.image.rect,0,0,u,1/0)]}function o(t,e,r,i,o,l){for(var c=o.layout["text-rotate"]*Math.PI/180,p=o.layout["text-keep-upright"],h=e.positionedGlyphs,f=[],d=0;d<h.length;d++){var m=h[d],y=m.glyph;if(y){var v=y.rect;if(v){var g,_=(m.x+y.advance/2)*r,x=u;l?(g=[],x=a(g,t,_,i,t.segment,!0),p&&(x=Math.min(x,a(g,t,_,i,t.segment,!1)))):g=[{anchorPoint:new s(t.x,t.y),offset:0,angle:0,maxScale:1/0,minScale:u}];var b=m.x+y.left,w=m.y-y.top,E=b+v.w,T=w+v.h,S=new s(m.x,y.advance/2),z=new s(b,w),A=new s(E,w),M=new s(b,T),P=new s(E,T);0!==m.angle&&(z._sub(S)._rotate(m.angle)._add(S),A._sub(S)._rotate(m.angle)._add(S),M._sub(S)._rotate(m.angle)._add(S),P._sub(S)._rotate(m.angle)._add(S));for(var I=0;I<g.length;I++){var L=g[I],k=z,C=A,R=M,D=P;if(c){var O=Math.sin(c),B=Math.cos(c),j=[B,-O,O,B];k=k.matMult(j),C=C.matMult(j),R=R.matMult(j),D=D.matMult(j)}var F=Math.max(L.minScale,x),U=(t.angle+L.offset+2*Math.PI)%(2*Math.PI),V=(L.angle+L.offset+2*Math.PI)%(2*Math.PI);f.push(new n(L.anchorPoint,k,C,R,D,v,U,V,F,L.maxScale,e.writingMode))}}}}return f}function a(t,e,r,n,i,o){var a=!o;r<0&&(o=!o),o&&i++;var l=new s(e.x,e.y),c=n[i],p=1/0;r=Math.abs(r);for(var h=u;;){var f=l.dist(c),d=r/f,m=Math.atan2(c.y-l.y,c.x-l.x);if(o||(m+=Math.PI),t.push({anchorPoint:l,offset:a?Math.PI:0,minScale:d,maxScale:p,angle:(m+2*Math.PI)%(2*Math.PI)}),d<=h)break;for(l=c;l.equals(c);)if(i+=o?1:-1,c=n[i],!c)return d;var y=c.sub(l)._unit();l=l.sub(y._mult(f)),p=d}return h}var s=t("point-geometry");e.exports={getIconQuads:i,getGlyphQuads:o,SymbolQuad:n};var u=.5},{"point-geometry":194}],84:[function(t,e,r){"use strict";var n=t("../util/token");e.exports=function(t,e){var r=n(t.properties,e["text-field"]);if(r){r=r.toString();var i=e["text-transform"];return"uppercase"===i?r=r.toLocaleUpperCase():"lowercase"===i&&(r=r.toLocaleLowerCase()),r}}},{"../util/token":126}],85:[function(t,e,r){"use strict";function n(t,e,r,n,i){this.codePoint=t,this.x=e,this.y=r,this.glyph=n||null,this.angle=i}function i(t,e,r,n,i,o,a){this.positionedGlyphs=t,this.text=e,this.top=r,this.bottom=n,this.left=i,this.right=o,this.writingMode=a}function o(t,e){for(var r=[],n=0,i=0,o=e;i<o.length;i+=1){var a=o[i];r.push(t.substring(n,a)),n=a}return n<t.length&&r.push(t.substring(n,t.length)),r}function a(t,e,r,n,a,s,u,l,c,p,d){t=t.trim(),d===x.vertical&&(t=_(t));var m=[],y=new i(m,t,c[1],c[1],c[0],c[0],d),v=d===x.horizontal&&r?o(t,h(t,l,r,e)):[t];return f(y,e,v,n,a,s,u,c,d,l,p),!!m.length&&y}function s(t,e,r,n){var i=0;for(var o in t){var a=n[t.charCodeAt(o)];a&&(i+=a.advance+e)}var s=Math.max(1,Math.ceil(i/r));return i/s}function u(t,e,r,n){var i=Math.pow(t-e,2);return n&&t<e?Math.max(0,i-150):i+Math.abs(r)*r}function l(t,e){var r=0;return 10===t&&(r-=1e4),!e||40!==e&&65288!==e||(r+=50),41!==t&&65289!==t||(r+=50),r}function c(t,e,r,n,i,o){for(var a=[],s=0,l=n;s<l.length;s+=1){var c=l[s],p=e-c.x;a.push({priorBreak:c,badness:u(p,r,i,o)+c.badness})}return a.push({priorBreak:null,badness:u(e,r,i,o)}),a.sort(function(t,e){return t.badness-e.badness}),{index:t,x:e,priorBreak:a[0].priorBreak,badness:a[0].badness}}function p(t){return t?p(t.priorBreak).concat(t.index):[]}function h(t,e,r,n){if(!r)return[];if(!t)return[];for(var i=[],o=s(t,e,r,n),a=0,u=0;u<t.length;u++){var h=t.charCodeAt(u),f=n[h];if(f||h===b){if(w[h]||g.charAllowsIdeographicBreaking(h)){var d=t.charCodeAt(u-1);i.unshift(c(u,a,o,i,l(h,d),!1))}f&&(a+=f.advance+e)}}return i.unshift(c(t.length,a,o,i,0,!0)),p(i.shift())}function f(t,e,r,i,o,a,s,u,l,c,p){var h=-17,f=0,y=h,v=0,_=t.positionedGlyphs;for(var b in r){var w=r[b].trim();if(w.length){for(var E=_.length,T=0;T<w.length;T++){var S=w.charCodeAt(T),z=e[S];z&&(g.charHasUprightVerticalOrientation(S)&&l!==x.horizontal?(_.push(new n(S,f,0,z,-Math.PI/2)),f+=p+c):(_.push(new n(S,f,y,z,0)),f+=z.advance+c))}if(_.length!==E){var A=f-c;v=Math.max(A,v),d(_,e,E,_.length-1,s)}f=0,y+=i}else y+=i}m(_,s,o,a,v,i,r.length,u);var M=r.length*i;t.top+=-a*M,t.bottom=t.top+M,t.left+=-o*v,t.right=t.left+v}function d(t,e,r,n
this._fireEvent("drag",t),this._fireEvent("move",t),this._pos=e,t.preventDefault()}},c.prototype._onUp=function(t){var e=this;if(this.isActive()){this._active=!1,this._fireEvent("dragend",t),this._drainInertiaBuffer();var r=function(){return e._fireEvent("moveend",t)},n=this._inertia;if(n.length<2)return void r();var i=n[n.length-1],o=n[0],c=i[1].sub(o[1]),p=(i[0]-o[0])/1e3;if(0===p||i[1].equals(o[1]))return void r();var h=c.mult(a/p),f=h.mag();f>u&&(f=u,h._unit()._mult(f));var d=f/(l*a),m=h.mult(-d/2);this._map.panBy(m,{duration:1e3*d,easing:s,noMoveStart:!0},{originalEvent:t})}},c.prototype._onMouseUp=function(t){this._ignoreEvent(t)||(this._onUp(t),o.document.removeEventListener("mousemove",this._onMove),o.document.removeEventListener("mouseup",this._onMouseUp))},c.prototype._onTouchEnd=function(t){this._ignoreEvent(t)||(this._onUp(t),o.document.removeEventListener("touchmove",this._onMove),o.document.removeEventListener("touchend",this._onTouchEnd))},c.prototype._fireEvent=function(t,e){return this._map.fire(t,{originalEvent:e})},c.prototype._ignoreEvent=function(t){var e=this._map;if(e.boxZoom&&e.boxZoom.isActive())return!0;if(e.dragRotate&&e.dragRotate.isActive())return!0;if(t.touches)return t.touches.length>1;if(t.ctrlKey)return!0;var r=1,n=0;return"mousemove"===t.type?t.buttons&0===r:t.button!==n},c.prototype._drainInertiaBuffer=function(){for(var t=this._inertia,e=Date.now(),r=160;t.length>0&&e-t[0][0]>r;)t.shift()},e.exports=c},{"../../util/dom":115,"../../util/util":127,"../../util/window":110}],98:[function(t,e,r){"use strict";var n=t("../../util/dom"),i=t("../../util/util"),o=t("../../util/window"),a=.25,s=i.bezier(0,0,a,1),u=180,l=720,c=function(t,e){this._map=t,this._el=t.getCanvasContainer(),this._bearingSnap=e.bearingSnap,this._pitchWithRotate=e.pitchWithRotate!==!1,i.bindAll(["_onDown","_onMove","_onUp"],this)};c.prototype.isEnabled=function(){return!!this._enabled},c.prototype.isActive=function(){return!!this._active},c.prototype.enable=function(){this.isEnabled()||(this._el.addEventListener("mousedown",this._onDown),this._enabled=!0)},c.prototype.disable=function(){this.isEnabled()&&(this._el.removeEventListener("mousedown",this._onDown),this._enabled=!1)},c.prototype._onDown=function(t){this._ignoreEvent(t)||this.isActive()||(o.document.addEventListener("mousemove",this._onMove),o.document.addEventListener("mouseup",this._onUp),this._active=!1,this._inertia=[[Date.now(),this._map.getBearing()]],this._startPos=this._pos=n.mousePos(this._el,t),this._center=this._map.transform.centerPoint,t.preventDefault())},c.prototype._onMove=function(t){if(!this._ignoreEvent(t)){this.isActive()||(this._active=!0,this._fireEvent("rotatestart",t),this._fireEvent("movestart",t));var e=this._map;e.stop();var r=this._pos,i=n.mousePos(this._el,t),o=.8*(r.x-i.x),a=(r.y-i.y)*-.5,s=e.getBearing()-o,u=e.getPitch()-a,l=this._inertia,c=l[l.length-1];this._drainInertiaBuffer(),l.push([Date.now(),e._normalizeBearing(s,c[1])]),e.transform.bearing=s,this._pitchWithRotate&&(e.transform.pitch=u),this._fireEvent("rotate",t),this._fireEvent("move",t),this._pos=i}},c.prototype._onUp=function(t){var e=this;if(!this._ignoreEvent(t)&&(o.document.removeEventListener("mousemove",this._onMove),o.document.removeEventListener("mouseup",this._onUp),this.isActive())){this._active=!1,this._fireEvent("rotateend",t),this._drainInertiaBuffer();var r=this._map,n=r.getBearing(),i=this._inertia,c=function(){Math.abs(n)<e._bearingSnap?r.resetNorth({noMoveStart:!0},{originalEvent:t}):e._fireEvent("moveend",t)};if(i.length<2)return void c();var p=i[0],h=i[i.length-1],f=i[i.length-2],d=r._normalizeBearing(n,f[1]),m=h[1]-p[1],y=m<0?-1:1,v=(h[0]-p[0])/1e3;if(0===m||0===v)return void c();var g=Math.abs(m*(a/v));g>u&&(g=u);var _=g/(l*a),x=y*g*(_/2);d+=x,Math.abs(r._normalizeBearing(d,0))<this._bearingSnap&&(d=r._normalizeBearing(0,d)),r.rotateTo(d,{duration:1e3*_,easing:s,noMoveStart:!0},{originalEvent:t})}},c.prototype._fireEvent=function(t,e){return this._map.fire(t,{originalEvent:e})},c.prototype._ignoreEvent=function(t){var e=this._map;if(e.boxZoom&&e.boxZ
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