Rocky_Mountain_Vending/.pnpm-store/v10/files/cb/ba1bd6548a9dcfbb84b084d22ed806b1ae70a299427d4fd8666b85ae7c5bcc45be4c9d46546cb6c30228cc4bb7a21097d99e7671eb247289bcfb88cc44d951

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var epsilon2 = 1e-12;

function cosh(x) {
  return ((x = Math.exp(x)) + 1 / x) / 2;
}

function sinh(x) {
  return ((x = Math.exp(x)) - 1 / x) / 2;
}

function tanh(x) {
  return ((x = Math.exp(2 * x)) - 1) / (x + 1);
}

var _default = function zoomRho(rho, rho2, rho4) {
  // p0 = [ux0, uy0, w0]
  // p1 = [ux1, uy1, w1]
  function zoom(p0, p1) {
    var ux0 = p0[0],
        uy0 = p0[1],
        w0 = p0[2],
        ux1 = p1[0],
        uy1 = p1[1],
        w1 = p1[2],
        dx = ux1 - ux0,
        dy = uy1 - uy0,
        d2 = dx * dx + dy * dy,
        i,
        S; // Special case for u0 ≅ u1.

    if (d2 < epsilon2) {
      S = Math.log(w1 / w0) / rho;

      i = function (t) {
        return [ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(rho * t * S)];
      };
    } // General case.
    else {
      var d1 = Math.sqrt(d2),
          b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),
          b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),
          r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),
          r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
      S = (r1 - r0) / rho;

      i = function (t) {
        var s = t * S,
            coshr0 = cosh(r0),
            u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));
        return [ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / cosh(rho * s + r0)];
      };
    }

    i.duration = S * 1000 * rho / Math.SQRT2;
    return i;
  }

  zoom.rho = function (_) {
    var _1 = Math.max(1e-3, +_),
        _2 = _1 * _1,
        _4 = _2 * _2;

    return zoomRho(_1, _2, _4);
  };

  return zoom;
}(Math.SQRT2, 2, 4);

exports.default = _default;