Brunobkr/llama.cpp_AlgMor24_github

1import {CardinalOpen} from "./cardinalOpen.js";2import {point} from "./catmullRom.js";3 4function CatmullRomOpen(context, alpha) {5  this._context = context;6  this._alpha = alpha;7}8 9CatmullRomOpen.prototype = {10  areaStart: function() {11    this._line = 0;12  },13  areaEnd: function() {14    this._line = NaN;15  },16  lineStart: function() {17    this._x0 = this._x1 = this._x2 =18    this._y0 = this._y1 = this._y2 = NaN;19    this._l01_a = this._l12_a = this._l23_a =20    this._l01_2a = this._l12_2a = this._l23_2a =21    this._point = 0;22  },23  lineEnd: function() {24    if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();25    this._line = 1 - this._line;26  },27  point: function(x, y) {28    x = +x, y = +y;29 30    if (this._point) {31      var x23 = this._x2 - x,32          y23 = this._y2 - y;33      this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));34    }35 36    switch (this._point) {37      case 0: this._point = 1; break;38      case 1: this._point = 2; break;39      case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;40      case 3: this._point = 4; // falls through41      default: point(this, x, y); break;42    }43 44    this._l01_a = this._l12_a, this._l12_a = this._l23_a;45    this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;46    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;47    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;48  }49};50 51export default (function custom(alpha) {52 53  function catmullRom(context) {54    return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);55  }56 57  catmullRom.alpha = function(alpha) {58    return custom(+alpha);59  };60 61  return catmullRom;62})(0.5);63