From 98daf986dc0f3f34acfe94c95dbe0272bb2e8c3e Mon Sep 17 00:00:00 2001
From: Jordan Stephens <iam@jordanstephens.net>
Date: Sun, 15 Mar 2015 15:04:34 -0400
Subject: [PATCH] renaming bodyRadius param to centralBodyRadius

---
 lib/orbit.js        |  6 +++---
 lib/param-helper.js | 14 +++++++-------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/lib/orbit.js b/lib/orbit.js
index 22cc369..91c637d 100644
--- a/lib/orbit.js
+++ b/lib/orbit.js
@@ -12,7 +12,7 @@ function Orbit(r, v, opts) {
   this.r = r;
   this.v = v;
   this.mu = (opts && opts.mu) || constants.MU;
-  this.bodyRadius = (opts && opts.bodyRadius) || constants.EARTH_RADIUS;
+  this.centralBodyRadius = (opts && opts.centralBodyRadius) || constants.EARTH_RADIUS;
 }
 
 Orbit.fromParams = function fromParams(params) {
@@ -20,7 +20,7 @@ Orbit.fromParams = function fromParams(params) {
 
   return new Orbit(state.r, state.v, {
     mu: params.mu,
-    bodyRadius: params.bodyRadius
+    centralBodyRadius: params.centralBodyRadius
   });
 };
 
@@ -128,7 +128,7 @@ Orbit.prototype.update = function update(dt) {
 
   return new Orbit(r, v, {
     mu: mu,
-    bodyRadius: this.bodyRadius
+    centralBodyRadius: this.centralBodyRadius
   });
 };
 
diff --git a/lib/param-helper.js b/lib/param-helper.js
index 5caa3cd..1c1c359 100644
--- a/lib/param-helper.js
+++ b/lib/param-helper.js
@@ -51,8 +51,8 @@ function expandedParams(params) {
   var paramKeys = Object.keys(params);
 
   if (ld.includes(paramKeys, "apogee") && ld.includes(paramKeys, "perigee")) {
-    params.semimajorAxis = semimajorAxisFromApogeeAndPerigee(params.apogee, params.perigee, params.bodyRadius);
-    params.eccentricity = eccentricityFromSemimajorAxisAndPerigee(params.semimajorAxis, params.perigee, params.bodyRadius);
+    params.semimajorAxis = semimajorAxisFromApogeeAndPerigee(params.apogee, params.perigee, params.centralBodyRadius);
+    params.eccentricity = eccentricityFromSemimajorAxisAndPerigee(params.semimajorAxis, params.perigee, params.centralBodyRadius);
   } else if (ld.includes(paramKeys, "semilatusRectum")) {
     params.semimajorAxis = semimajorAxisFromSemilatusRectumAndEccentricity(params.semilatusRectum, params.eccentricity);
   }
@@ -127,7 +127,7 @@ function baseParams(params) {
   }
 
   params.mu = constants.MU;
-  params.bodyRadius = constants.EARTH_RADIUS;
+  params.centralBodyRadius = constants.EARTH_RADIUS;
 
   return ld.extend({}, DEFAULT_PARAMS, params);
 }
@@ -144,12 +144,12 @@ function semimajorAxisFromSemilatusRectumAndEccentricity(semilatusRectum, eccent
   return semilatusRectum / (1 - Math.pow(eccentricity, 2));
 }
 
-function semimajorAxisFromApogeeAndPerigee(apogee, perigee, bodyRadius) {
-  return ((bodyRadius * 2) + apogee + perigee) / 2.0;
+function semimajorAxisFromApogeeAndPerigee(apogee, perigee, centralBodyRadius) {
+  return ((centralBodyRadius * 2) + apogee + perigee) / 2.0;
 }
 
-function eccentricityFromSemimajorAxisAndPerigee(semimajorAxis, perigee, bodyRadius) {
-  return (semimajorAxis / (bodyRadius + perigee)) - 1;
+function eccentricityFromSemimajorAxisAndPerigee(semimajorAxis, perigee, centralBodyRadius) {
+  return (semimajorAxis / (centralBodyRadius + perigee)) - 1;
 }
 
 function toRad(deg) {