Remove unused ellipsoid.vincenty() method

src/ol/ellipsoid/ellipsoid.js

@@ -1,8 +1,5 @@
 goog.provide('ol.Ellipsoid');
 
-goog.require('goog.math');
-goog.require('ol.Coordinate');
-
 
 
 /**
@@ -43,95 +40,3 @@ ol.Ellipsoid = function(a, flattening) {
   this.e = Math.sqrt(this.eSquared);
 
 };
-
-
-/**
- * @param {ol.Coordinate} c1 Coordinate 1.
- * @param {ol.Coordinate} c2 Coordinate 1.
- * @param {number=} opt_minDeltaLambda Minimum delta lambda for convergence.
- * @param {number=} opt_maxIterations Maximum iterations.
- * @return {{distance: number, initialBearing: number, finalBearing: number}}
- *     Vincenty.
- */
-ol.Ellipsoid.prototype.vincenty =
-    function(c1, c2, opt_minDeltaLambda, opt_maxIterations) {
-  var minDeltaLambda = goog.isDef(opt_minDeltaLambda) ?
-      opt_minDeltaLambda : 1e-12;
-  var maxIterations = goog.isDef(opt_maxIterations) ?
-      opt_maxIterations : 100;
-  var f = this.flattening;
-  var lat1 = goog.math.toRadians(c1[1]);
-  var lat2 = goog.math.toRadians(c2[1]);
-  var deltaLon = goog.math.toRadians(c2[0] - c1[0]);
-  var U1 = Math.atan((1 - f) * Math.tan(lat1));
-  var cosU1 = Math.cos(U1);
-  var sinU1 = Math.sin(U1);
-  var U2 = Math.atan((1 - f) * Math.tan(lat2));
-  var cosU2 = Math.cos(U2);
-  var sinU2 = Math.sin(U2);
-  var lambda = deltaLon;
-  var cosSquaredAlpha, sinAlpha;
-  var cosLambda, deltaLambda = Infinity, sinLambda;
-  var cos2SigmaM, cosSigma, sigma, sinSigma;
-  var i;
-  for (i = maxIterations; i > 0; --i) {
-    cosLambda = Math.cos(lambda);
-    sinLambda = Math.sin(lambda);
-    var x = cosU2 * sinLambda;
-    var y = cosU1 * sinU2 - sinU1 * cosU2 * cosLambda;
-    sinSigma = Math.sqrt(x * x + y * y);
-    if (sinSigma === 0) {
-      return {
-        distance: 0,
-        initialBearing: 0,
-        finalBearing: 0
-      };
-    }
-    cosSigma = sinU1 * sinU2 + cosU1 * cosU2 * cosLambda;
-    sigma = Math.atan2(sinSigma, cosSigma);
-    sinAlpha = cosU1 * cosU2 * sinLambda / sinSigma;
-    cosSquaredAlpha = 1 - sinAlpha * sinAlpha;
-    cos2SigmaM = cosSigma - 2 * sinU1 * sinU2 / cosSquaredAlpha;
-    if (isNaN(cos2SigmaM)) {
-      cos2SigmaM = 0;
-    }
-    var C = f / 16 * cosSquaredAlpha * (4 + f * (4 - 3 * cosSquaredAlpha));
-    var lambdaPrime = deltaLon + (1 - C) * f * sinAlpha * (sigma +
-        C * sinSigma * (cos2SigmaM +
-        C * cosSigma * (2 * cos2SigmaM * cos2SigmaM - 1)));
-    deltaLambda = Math.abs(lambdaPrime - lambda);
-    lambda = lambdaPrime;
-    if (deltaLambda < minDeltaLambda) {
-      break;
-    }
-  }
-  if (i === 0) {
-    return {
-      distance: NaN,
-      finalBearing: NaN,
-      initialBearing: NaN
-    };
-  }
-  var aSquared = this.a * this.a;
-  var bSquared = this.b * this.b;
-  var uSquared = cosSquaredAlpha * (aSquared - bSquared) / bSquared;
-  var A = 1 + uSquared / 16384 *
-      (4096 + uSquared * (uSquared * (320 - 175 * uSquared) - 768));
-  var B = uSquared / 1024 *
-      (256 + uSquared * (uSquared * (74 - 47 * uSquared) - 128));
-  var deltaSigma = B * sinSigma * (cos2SigmaM + B / 4 *
-      (cosSigma * (2 * cos2SigmaM * cos2SigmaM - 1) -
-       B / 6 * cos2SigmaM * (4 * sinSigma * sinSigma - 3) *
-       (4 * cos2SigmaM * cos2SigmaM - 3)));
-  cosLambda = Math.cos(lambda);
-  sinLambda = Math.sin(lambda);
-  var alpha1 = Math.atan2(cosU2 * sinLambda,
-                          cosU1 * sinU2 - sinU1 * cosU2 * cosLambda);
-  var alpha2 = Math.atan2(cosU1 * sinLambda,
-                          cosU1 * sinU2 * cosLambda - sinU1 * cosU2);
-  return {
-    distance: this.b * A * (sigma - deltaSigma),
-    initialBearing: goog.math.toDegrees(alpha1),
-    finalBearing: goog.math.toDegrees(alpha2)
-  };
-};