First commit

node_modules/proj4/lib/common/acosh.js

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+export default function(x) {
+  return 2 * Math.log(Math.sqrt((x + 1) / 2) + Math.sqrt((x - 1) / 2));
+}

node_modules/proj4/lib/common/adjust_lat.js

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+import {HALF_PI} from '../constants/values';
+import sign from './sign';
+
+export default function(x) {
+  return (Math.abs(x) < HALF_PI) ? x : (x - (sign(x) * Math.PI));
+}

node_modules/proj4/lib/common/adjust_lon.js

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+
+import {TWO_PI, SPI} from '../constants/values';
+import sign from './sign';
+
+export default function(x) {
+  return (Math.abs(x) <= SPI) ? x : (x - (sign(x) * TWO_PI));
+}

node_modules/proj4/lib/common/adjust_zone.js

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+import adjust_lon from './adjust_lon';
+
+export default function(zone, lon) {
+  if (zone === undefined) {
+    zone = Math.floor((adjust_lon(lon) + Math.PI) * 30 / Math.PI) + 1;
+
+    if (zone < 0) {
+      return 0;
+    } else if (zone > 60) {
+      return 60;
+    }
+  }
+  return zone;
+}

node_modules/proj4/lib/common/asinh.js

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+export default function(x) {
+  var s = (x >= 0 ? 1 : -1);
+  return s * (Math.log(Math.abs(x) + Math.sqrt(x * x + 1)));
+}

node_modules/proj4/lib/common/asinhy.js

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+import hypot from './hypot';
+import log1py from './log1py';
+
+export default function(x) {
+  var y = Math.abs(x);
+  y = log1py(y * (1 + y / (hypot(1, y) + 1)));
+
+  return x < 0 ? -y : y;
+}

node_modules/proj4/lib/common/asinz.js

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+export default function(x) {
+  if (Math.abs(x) > 1) {
+    x = (x > 1) ? 1 : -1;
+  }
+  return Math.asin(x);
+}

node_modules/proj4/lib/common/atanh.js

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+export default function(x) {
+  return Math.log((x - 1) / (x + 1)) / 2;
+}

node_modules/proj4/lib/common/clens.js

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+export default function(pp, arg_r) {
+  var r = 2 * Math.cos(arg_r);
+  var i = pp.length - 1;
+  var hr1 = pp[i];
+  var hr2 = 0;
+  var hr;
+
+  while (--i >= 0) {
+    hr = -hr2 + r * hr1 + pp[i];
+    hr2 = hr1;
+    hr1 = hr;
+  }
+
+  return Math.sin(arg_r) * hr;
+}

node_modules/proj4/lib/common/clens_cmplx.js

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+import sinh from './sinh';
+import cosh from './cosh';
+
+export default function(pp, arg_r, arg_i) {
+  var sin_arg_r = Math.sin(arg_r);
+  var cos_arg_r = Math.cos(arg_r);
+  var sinh_arg_i = sinh(arg_i);
+  var cosh_arg_i = cosh(arg_i);
+  var r = 2 * cos_arg_r * cosh_arg_i;
+  var i = -2 * sin_arg_r * sinh_arg_i;
+  var j = pp.length - 1;
+  var hr = pp[j];
+  var hi1 = 0;
+  var hr1 = 0;
+  var hi = 0;
+  var hr2;
+  var hi2;
+
+  while (--j >= 0) {
+    hr2 = hr1;
+    hi2 = hi1;
+    hr1 = hr;
+    hi1 = hi;
+    hr = -hr2 + r * hr1 - i * hi1 + pp[j];
+    hi = -hi2 + i * hr1 + r * hi1;
+  }
+
+  r = sin_arg_r * cosh_arg_i;
+  i = cos_arg_r * sinh_arg_i;
+
+  return [r * hr - i * hi, r * hi + i * hr];
+}

node_modules/proj4/lib/common/cosh.js

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+export default function(x) {
+  var r = Math.exp(x);
+  r = (r + 1 / r) / 2;
+  return r;
+}

node_modules/proj4/lib/common/e0fn.js

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+export default function(x) {
+  return (1 - 0.25 * x * (1 + x / 16 * (3 + 1.25 * x)));
+}

node_modules/proj4/lib/common/e1fn.js

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+export default function(x) {
+  return (0.375 * x * (1 + 0.25 * x * (1 + 0.46875 * x)));
+}

node_modules/proj4/lib/common/e2fn.js

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+export default function(x) {
+  return (0.05859375 * x * x * (1 + 0.75 * x));
+}

node_modules/proj4/lib/common/e3fn.js

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+export default function(x) {
+  return (x * x * x * (35 / 3072));
+}

node_modules/proj4/lib/common/fL.js

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+import {HALF_PI} from '../constants/values';
+
+export default function(x, L) {
+  return 2 * Math.atan(x * Math.exp(L)) - HALF_PI;
+}

node_modules/proj4/lib/common/gN.js

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+export default function(a, e, sinphi) {
+  var temp = e * sinphi;
+  return a / Math.sqrt(1 - temp * temp);
+}

node_modules/proj4/lib/common/gatg.js

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+export default function(pp, B) {
+  var cos_2B = 2 * Math.cos(2 * B);
+  var i = pp.length - 1;
+  var h1 = pp[i];
+  var h2 = 0;
+  var h;
+
+  while (--i >= 0) {
+    h = -h2 + cos_2B * h1 + pp[i];
+    h2 = h1;
+    h1 = h;
+  }
+
+  return (B + h * Math.sin(2 * B));
+}

node_modules/proj4/lib/common/hypot.js

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+export default function(x, y) {
+  x = Math.abs(x);
+  y = Math.abs(y);
+  var a = Math.max(x, y);
+  var b = Math.min(x, y) / (a ? a : 1);
+
+  return a * Math.sqrt(1 + Math.pow(b, 2));
+}

node_modules/proj4/lib/common/imlfn.js

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+export default function(ml, e0, e1, e2, e3) {
+  var phi;
+  var dphi;
+
+  phi = ml / e0;
+  for (var i = 0; i < 15; i++) {
+    dphi = (ml - (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi))) / (e0 - 2 * e1 * Math.cos(2 * phi) + 4 * e2 * Math.cos(4 * phi) - 6 * e3 * Math.cos(6 * phi));
+    phi += dphi;
+    if (Math.abs(dphi) <= 0.0000000001) {
+      return phi;
+    }
+  }
+
+  //..reportError("IMLFN-CONV:Latitude failed to converge after 15 iterations");
+  return NaN;
+}

node_modules/proj4/lib/common/invlatiso.js

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+import fL from './fL';
+
+export default function(eccent, ts) {
+  var phi = fL(1, ts);
+  var Iphi = 0;
+  var con = 0;
+  do {
+    Iphi = phi;
+    con = eccent * Math.sin(Iphi);
+    phi = fL(Math.exp(eccent * Math.log((1 + con) / (1 - con)) / 2), ts);
+  } while (Math.abs(phi - Iphi) > 1.0e-12);
+  return phi;
+}

node_modules/proj4/lib/common/iqsfnz.js

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+import {HALF_PI} from '../constants/values';
+
+export default function(eccent, q) {
+  var temp = 1 - (1 - eccent * eccent) / (2 * eccent) * Math.log((1 - eccent) / (1 + eccent));
+  if (Math.abs(Math.abs(q) - temp) < 1.0E-6) {
+    if (q < 0) {
+      return (-1 * HALF_PI);
+    }
+    else {
+      return HALF_PI;
+    }
+  }
+  //var phi = 0.5* q/(1-eccent*eccent);
+  var phi = Math.asin(0.5 * q);
+  var dphi;
+  var sin_phi;
+  var cos_phi;
+  var con;
+  for (var i = 0; i < 30; i++) {
+    sin_phi = Math.sin(phi);
+    cos_phi = Math.cos(phi);
+    con = eccent * sin_phi;
+    dphi = Math.pow(1 - con * con, 2) / (2 * cos_phi) * (q / (1 - eccent * eccent) - sin_phi / (1 - con * con) + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
+    phi += dphi;
+    if (Math.abs(dphi) <= 0.0000000001) {
+      return phi;
+    }
+  }
+
+  //console.log("IQSFN-CONV:Latitude failed to converge after 30 iterations");
+  return NaN;
+}

node_modules/proj4/lib/common/latiso.js

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+import {HALF_PI} from '../constants/values';
+
+export default function(eccent, phi, sinphi) {
+  if (Math.abs(phi) > HALF_PI) {
+    return Number.NaN;
+  }
+  if (phi === HALF_PI) {
+    return Number.POSITIVE_INFINITY;
+  }
+  if (phi === -1 * HALF_PI) {
+    return Number.NEGATIVE_INFINITY;
+  }
+
+  var con = eccent * sinphi;
+  return Math.log(Math.tan((HALF_PI + phi) / 2)) + eccent * Math.log((1 - con) / (1 + con)) / 2;
+}

node_modules/proj4/lib/common/log1py.js

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+export default function(x) {
+  var y = 1 + x;
+  var z = y - 1;
+
+  return z === 0 ? x : x * Math.log(y) / z;
+}

node_modules/proj4/lib/common/mlfn.js

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+export default function(e0, e1, e2, e3, phi) {
+  return (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi));
+}

node_modules/proj4/lib/common/msfnz.js

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+export default function(eccent, sinphi, cosphi) {
+  var con = eccent * sinphi;
+  return cosphi / (Math.sqrt(1 - con * con));
+}

node_modules/proj4/lib/common/phi2z.js

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+import {HALF_PI} from '../constants/values';
+
+export default function(eccent, ts) {
+  var eccnth = 0.5 * eccent;
+  var con, dphi;
+  var phi = HALF_PI - 2 * Math.atan(ts);
+  for (var i = 0; i <= 15; i++) {
+    con = eccent * Math.sin(phi);
+    dphi = HALF_PI - 2 * Math.atan(ts * (Math.pow(((1 - con) / (1 + con)), eccnth))) - phi;
+    phi += dphi;
+    if (Math.abs(dphi) <= 0.0000000001) {
+      return phi;
+    }
+  }
+  //console.log("phi2z has NoConvergence");
+  return -9999;
+}

node_modules/proj4/lib/common/pj_enfn.js

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+var C00 = 1;
+var C02 = 0.25;
+var C04 = 0.046875;
+var C06 = 0.01953125;
+var C08 = 0.01068115234375;
+var C22 = 0.75;
+var C44 = 0.46875;
+var C46 = 0.01302083333333333333;
+var C48 = 0.00712076822916666666;
+var C66 = 0.36458333333333333333;
+var C68 = 0.00569661458333333333;
+var C88 = 0.3076171875;
+
+export default function(es) {
+  var en = [];
+  en[0] = C00 - es * (C02 + es * (C04 + es * (C06 + es * C08)));
+  en[1] = es * (C22 - es * (C04 + es * (C06 + es * C08)));
+  var t = es * es;
+  en[2] = t * (C44 - es * (C46 + es * C48));
+  t *= es;
+  en[3] = t * (C66 - es * C68);
+  en[4] = t * es * C88;
+  return en;
+}

node_modules/proj4/lib/common/pj_inv_mlfn.js

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+import pj_mlfn from "./pj_mlfn";
+import {EPSLN} from '../constants/values';
+
+var MAX_ITER = 20;
+
+export default function(arg, es, en) {
+  var k = 1 / (1 - es);
+  var phi = arg;
+  for (var i = MAX_ITER; i; --i) { /* rarely goes over 2 iterations */
+    var s = Math.sin(phi);
+    var t = 1 - es * s * s;
+    //t = this.pj_mlfn(phi, s, Math.cos(phi), en) - arg;
+    //phi -= t * (t * Math.sqrt(t)) * k;
+    t = (pj_mlfn(phi, s, Math.cos(phi), en) - arg) * (t * Math.sqrt(t)) * k;
+    phi -= t;
+    if (Math.abs(t) < EPSLN) {
+      return phi;
+    }
+  }
+  //..reportError("cass:pj_inv_mlfn: Convergence error");
+  return phi;
+}

node_modules/proj4/lib/common/pj_mlfn.js

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+export default function(phi, sphi, cphi, en) {
+  cphi *= sphi;
+  sphi *= sphi;
+  return (en[0] * phi - cphi * (en[1] + sphi * (en[2] + sphi * (en[3] + sphi * en[4]))));
+}

node_modules/proj4/lib/common/qsfnz.js

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+export default function(eccent, sinphi) {
+  var con;
+  if (eccent > 1.0e-7) {
+    con = eccent * sinphi;
+    return ((1 - eccent * eccent) * (sinphi / (1 - con * con) - (0.5 / eccent) * Math.log((1 - con) / (1 + con))));
+  }
+  else {
+    return (2 * sinphi);
+  }
+}

node_modules/proj4/lib/common/sign.js

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+export default function(x) {
+  return x<0 ? -1 : 1;
+}

node_modules/proj4/lib/common/sinh.js

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+export default function(x) {
+  var r = Math.exp(x);
+  r = (r - 1 / r) / 2;
+  return r;
+}

node_modules/proj4/lib/common/srat.js

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+export default function(esinp, exp) {
+  return (Math.pow((1 - esinp) / (1 + esinp), exp));
+}

node_modules/proj4/lib/common/tanh.js

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+export default function(x) {
+  var r = Math.exp(x);
+  r = (r - 1 / r) / (r + 1 / r);
+  return r;
+}

node_modules/proj4/lib/common/toPoint.js

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+export default function (array){
+  var out = {
+    x: array[0],
+    y: array[1]
+  };
+  if (array.length>2) {
+    out.z = array[2];
+  }
+  if (array.length>3) {
+    out.m = array[3];
+  }
+  return out;
+}

node_modules/proj4/lib/common/tsfnz.js

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+import {HALF_PI} from '../constants/values';
+
+export default function(eccent, phi, sinphi) {
+  var con = eccent * sinphi;
+  var com = 0.5 * eccent;
+  con = Math.pow(((1 - con) / (1 + con)), com);
+  return (Math.tan(0.5 * (HALF_PI - phi)) / con);
+}