2 lines
3.7 KiB
JavaScript
2 lines
3.7 KiB
JavaScript
/*! Planetary.js 0.2.0 | (c) 2013 Brandon Tilley | Released under MIT License */
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!function(n,t){"function"==typeof define&&define.amd?define(["d3","topojson"],t):"object"==typeof exports?module.exports=t(require("d3"),require("topojson")):n.planetaryjs=t(n.d3,n.topojson,n)}(this,function(n,t,o){"use strict";var i=null;o&&(i=o.planetaryjs);var e=[],r=function(t,o,i){n.timer(function(){t.context.clearRect(0,0,o.width,o.height);for(var n=0;n<i.onDraw.length;n++)i.onDraw[n]()})},l=function(n,t){for(var o=0;o<e.length;o++)t.unshift(e[o]);0==t.length&&(s.plugins.earth&&n.loadPlugin(s.plugins.earth()),s.plugins.pings&&n.loadPlugin(s.plugins.pings()));for(var o=0;o<t.length;o++)t[o](n)},u=function(n,t,o){if(o.onInit.length){var i=0,e=function(n){var t=o.onInit[i];t.length?t(function(){i++,n()}):(t(),i++,setTimeout(n,0))},l=function(){i>=o.onInit.length?r(n,t,o):e(l)};e(l)}else r(n,t,o)},a=function(n,t,o,i){l(n,o),n.canvas=t,n.context=t.getContext("2d"),u(n,t,i)},s={plugins:{},noConflict:function(){return o.planetaryjs=i,s},loadPlugin:function(n){e.push(n)},planet:function(){var t=[],o={onInit:[],onDraw:[]},i={plugins:{},draw:function(n){a(i,n,t,o)},onInit:function(n){o.onInit.push(n)},onDraw:function(n){o.onDraw.push(n)},loadPlugin:function(n){t.push(n)},withSavedContext:function(n){if(!this.context)throw new Error("No canvas to fetch context for");this.context.save(),n(this.context),this.context.restore()}};return i.projection=n.geo.orthographic().clipAngle(90).precision(0),i.path=n.geo.path().projection(i.projection),i}};return s.plugins.topojson=function(t){return function(o){o.plugins.topojson={},o.onInit(function(i){if(t.world)o.plugins.topojson.world=t.world,setTimeout(i,0);else{var e=t.file||"world-110m.json";n.json(e,function(n,t){if(n)throw new Error("Could not load JSON "+e);o.plugins.topojson.world=t,i()})}})}},s.plugins.oceans=function(n){return function(t){t.onDraw(function(){t.withSavedContext(function(o){o.beginPath(),t.path.context(o)({type:"Sphere"}),o.fillStyle=n.fill||"black",o.fill()})})}},s.plugins.land=function(n){return function(o){var i=null;o.onInit(function(){var n=o.plugins.topojson.world;i=t.feature(n,n.objects.land)}),o.onDraw(function(){o.withSavedContext(function(t){t.beginPath(),o.path.context(t)(i),0!=n.fill&&(t.fillStyle=n.fill||"white",t.fill()),n.stroke&&(n.lineWidth&&(t.lineWidth=n.lineWidth),t.strokeStyle=n.stroke,t.stroke())})})}},s.plugins.borders=function(n){return function(o){var i=null,e={internal:function(n,t){return n.id!==t.id},external:function(n,t){return n.id===t.id},both:function(){return!0}};o.onInit(function(){var r=o.plugins.topojson.world,l=r.objects.countries,u=n.type||"internal";i=t.mesh(r,l,e[u])}),o.onDraw(function(){o.withSavedContext(function(t){t.beginPath(),o.path.context(t)(i),t.strokeStyle=n.stroke||"gray",n.lineWidth&&(t.lineWidth=n.lineWidth),t.stroke()})})}},s.plugins.earth=function(n){var n=n||{},t=n.topojson||{},o=n.oceans||{},i=n.land||{},e=n.borders||{};return function(n){s.plugins.topojson(t)(n),s.plugins.oceans(o)(n),s.plugins.land(i)(n),s.plugins.borders(e)(n)}},s.plugins.pings=function(t){var o=[],i=function(n,i,e){var e=e||{};e.color=e.color||t.color||"white",e.ttl=e.ttl||t.ttl||2e3,e.angle=e.angle||t.angle||5,o.push({lat:n,lng:i,time:new Date,options:e})},e=function(n,t,i){for(var e=[],l=0;l<o.length;l++){var u=o[l],a=i-u.time;a<u.options.ttl&&(e.push(u),r(n,t,i,a,u))}o=e},r=function(t,o,i,e,r){var l=1-e/r.options.ttl,u=n.rgb(r.options.color);u="rgba("+u.r+","+u.g+","+u.b+","+l+")",o.strokeStyle=u;var a=n.geo.circle().origin([r.lng,r.lat]).angle(e/r.options.ttl*r.options.angle)();o.beginPath(),t.path.context(o)(a),o.stroke()};return function(n){n.plugins.pings={add:i},n.onDraw(function(){var t=new Date;n.withSavedContext(function(o){e(n,o,t)})})}},s}); |