@antv/f2/lib/canvas/animation/interpolate/interpolateObjectArray.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _src = require("../../../deps/d3-interpolate/src");

function interpolateObjectArray(a, b) {
  var na = a ? a.length : 0;
  var nb = b ? b.length : 0;
  var maxLen = Math.max(nb, na);
  var c = new Array(maxLen);
  var x = new Array(maxLen);
  var i; // 将a、b长度补齐后再进行插值计算

  for (i = 0; i < maxLen; i++) {
    var ia = i < na ? (a || [])[i] : (a || [])[na - 1];
    var ib = i < nb ? (b || [])[i] : (b || [])[nb - 1];
    x[i] = (0, _src.interpolateObject)(ia, ib);
  }

  return function (t) {
    // 清除补间的多余点
    if (t >= 1) {
      return b;
    }

    for (i = 0; i < maxLen; ++i) {
      c[i] = x[i](t);
    }

    return c;
  };
}

var _default = interpolateObjectArray;
exports.default = _default;