UNPKG

vislite

Version:

灵活、快速、简单的数据可视化交互式跨端前端库

oi-contrib.github.io/VISLite

oi-contrib/VISLite

5 lines • 3.22 kB
1
2
3
4
5
/*! * MapCoordinate of VISLite JavaScript Library v1.3.0 * git+https://github.com/oi-contrib/VISLite.git */ var t=Object.prototype.toString;function n(n){if(null===n||"object"!=typeof n||"[object Object]"!=function(n){return null==n?void 0===n?"[object Undefined]":"[object Null]":t.call(n)}(n))return!1;if(null===Object.getPrototypeOf(n))return!0;for(var e=n;null!==Object.getPrototypeOf(e);)e=Object.getPrototypeOf(e);return Object.getPrototypeOf(n)===e}function e(t){for(var n=null,e=null,o=null,r=null,i=function(t){for(var i=0;i<t.length;i++)for(var a=0;a<t[i].length;a++){var u=t[i][a][0],h=t[i][a][1];(null==n||n>u)&&(n=u),(null==e||e<u)&&(e=u),(null==o||o>h)&&(o=h),(null==r||r<h)&&(r=h)}},a=t.features,u=0;u<a.length;u++)if("Polygon"==a[u].geometry.type)i(a[u].geometry.coordinates);else if("MultiPolygon"==a[u].geometry.type)for(var h=0;h<a[u].geometry.coordinates.length;h++)i(a[u].geometry.coordinates[h]);return[n,e,o,r]}function o(){for(var t=[],n=0;n<arguments.length;n++)t[n]=arguments[n];for(var o=null,r=null,i=null,a=null,u=0,h=t;u<h.length;u++){var l=e(h[u]),f=l[0],c=l[1],s=l[2],_=l[3];(null==o||f<o)&&(o=f),(null==r||c>r)&&(r=c),(null==i||s<i)&&(i=s),(null==a||_>a)&&(a=_)}return[o,r,i,a]}var r=function(t,n){void 0===t&&(t=7),void 0===n&&(n=[107,36]),this.name="Mercator";var e=100*t*Math.PI/180,o=e*n[0],r=-1*e*n[1];this.use=function(t,n){return[.8*(e*t-o),-1*e*n-r,0]}},i=function(t,n,e,o){var r=Math.cos(t),i=Math.sin(t);return[n*r-e*i,n*i+e*r,o]},a=function(){function t(t,n){void 0===t&&(t=7),void 0===n&&(n=[107,36]),this.name="Eoap",this.__scale=t,this.__center=n}return t.prototype.use=function(t,n){var e,o,r,a,u,h,l=(e=(360-n)/180*Math.PI,o=100*this.__scale,r=0,a=0,u=Math.cos(e),h=Math.sin(e),[a*h+o*u,r,a*u-o*h]);return l=i(t/180*Math.PI,l[0],l[1],l[2]),l=i((90-this.__center[0])/180*Math.PI,l[0],l[1],l[2]),l=function(t,n,e,o){var r=Math.cos(t),i=Math.sin(t);return[n,e*r-o*i,e*i+o*r]}((90-this.__center[1])/180*Math.PI,l[0],l[1],l[2]),[-l[0],l[1],l[2]]},t}(),u=function(){function t(t){void 0===t&&(t={}),this.name="MapCoordinate",this.__config=function(t,n){for(var e in t)n[e]=t[e];return n}(t,{api:"Mercator",width:400,height:300,left:0,top:0})}return t.prototype.$$updateMap=function(){var t=this.__boundary,n=t[0],e=t[1],o=t[2],i=t[3];if("Eoap"==this.__config.api){var u=.836*this.__config.width/(e-n),h=.557*this.__config.height/(i-o);this.__map=new a(u<h?u:h,[.5*(n+e)*.9778,.5*(o+i)*1.025])}else{if("Mercator"!=this.__config.api)throw new Error("Unexpected API types:"+this.__config.api);u=.72*this.__config.width/(e-n),h=.575*this.__config.height/(i-o);this.__map=new r(u<h?u:h,[.5*(n+e),.5*(o+i)])}},t.prototype.setConfig=function(t){return function t(e,o){for(var r in o){var i=o[r];n(i)?(e[r]||(e[r]={}),t(e[r],o[r])):e[r]=i}}(this.__config,t),this.$$updateMap(),this},t.prototype.setGeos=function(){for(var t=[],n=0;n<arguments.length;n++)t[n]=arguments[n];return this.__boundary=o.apply(void 0,t),this.$$updateMap(),this},t.prototype.use=function(t,n){if(this.__map){var e=this.__map.use(t,n);return[this.__config.left+.5*this.__config.width+e[0],this.__config.top+.5*this.__config.height+e[1]]}throw new Error("Geographic data not set")},t}();export{u as default};