vislite/lib/Cardinal/index.es.min.js

灵活、快速、简单的数据可视化交互式跨端前端库

/*!
* Cardinal of VISLite JavaScript Library v1.3.0
* git+https://github.com/oi-contrib/VISLite.git
*/
var t=function(){function t(t){void 0===t&&(t=.5),this.name="Hermite",this.__u=t}return t.prototype.setP=function(t,i,_,h,s,e){if(!(t<_))throw new Error("The point x-position should be increamented!");this.__a=t,this.__b=_;var n=this.__u*s,o=this.__u*e;return i/=_-t,h/=_-t,this.__MR=[2*i-2*h+n+o,3*h-3*i-2*n-o,n,i],this},t.prototype.use=function(t){if(this.__MR){var i=(t-this.__a)/(this.__b-this.__a),_=i*i;return(i*_*this.__MR[0]+_*this.__MR[1]+i*this.__MR[2]+this.__MR[3])*(this.__b-this.__a)}throw new Error("You shoud first set the position!")},t}(),i=function(){function i(t){void 0===t&&(t=0),this.name="Cardinal",this.__t=t}return i.prototype.setP=function(i){this.__HS={x:[],h:[]};var _,h,s=(i[1][1]-i[0][1])/(i[1][0]-i[0][0]);for(this.__HS.x[0]=i[0][0],_=1;_<i.length;_++){if(i[_][0]<=i[_-1][0])throw new Error("The point position should be increamented!");this.__HS.x[_]=i[_][0],h=_<i.length-1?i[_+1][1]>i[_][1]&&i[_-1][1]>i[_][1]||i[_+1][1]<i[_][1]&&i[_-1][1]<i[_][1]||i[_+1][1]==i[_][1]||i[_-1][1]==i[_][1]?0:(i[_+1][1]-i[_-1][1])/(i[_+1][0]-i[_-1][0]):(i[_][1]-i[_-1][1])/(i[_][0]-i[_-1][0]),this.__HS.h[_-1]=new t(.5*(1-this.__t)).setP(i[_-1][0],i[_-1][1],i[_][0],i[_][1],s,h),s=h}return this},i.prototype.use=function(t){if(this.__HS){for(this.__i=-1;this.__i+1<this.__HS.x.length&&(t>this.__HS.x[this.__i+1]||-1==this.__i&&t>=this.__HS.x[this.__i+1]);)this.__i+=1;return this.__i<0?this.__HS.h[0].use(this.__HS.x[0]):this.__i>=this.__HS.h.length?this.__HS.h[this.__HS.h.length-1].use(this.__HS.x[this.__HS.x.length-1]):this.__HS.h[this.__i].use(t)}throw new Error("You shoud first set the position!")},i}();export{i as default};