ns3: Update patch set

tools/0012-geocentric-mobility-model-Switch-to-WGS84-as-default.patch

@@ -0,0 +1,47 @@
+From 90b4b0fc9594f8bfcea45b59a938b07dbe017bf0 Mon Sep 17 00:00:00 2001
+From: Giovanni Grieco <giovanni.grieco@poliba.it>
+Date: Thu, 13 Jul 2023 12:38:25 +0000
+Subject: [PATCH] geocentric-mobility-model: Switch to WGS84 as default Earth
+ Spheroid Type
+
+---
+ src/mobility/model/geocentric-mobility-model.cc | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/src/mobility/model/geocentric-mobility-model.cc b/src/mobility/model/geocentric-mobility-model.cc
+index bed9b8cae..9bcbf3339 100644
+--- a/src/mobility/model/geocentric-mobility-model.cc
++++ b/src/mobility/model/geocentric-mobility-model.cc
+@@ -37,7 +37,7 @@ GeocentricMobilityModel::GetTypeId()
+             .SetGroupName("Mobility")
+             .AddAttribute("EarthSpheroidType",
+                           "Spheroid model to use for Earth",
+-                          EnumValue(GeographicPositions::SPHERE),
++                          EnumValue(GeographicPositions::WGS84),
+                           MakeEnumAccessor(&GeocentricMobilityModel::m_earthSpheroidType),
+                           MakeEnumChecker(GeographicPositions::SPHERE,
+                                           "SPHERE",
+@@ -56,6 +56,8 @@ GeocentricMobilityModel::GetTypeId()
+ }
+
+ GeocentricMobilityModel::GeocentricMobilityModel()
++    : m_earthSpheroidType(GeographicPositions::WGS84),
++      m_geographicReferencePoint({0.0, 0.0, 0.0})
+ {
+ }
+
+@@ -102,7 +104,10 @@ GeocentricMobilityModel::GetEarthSpheroidType() const
+ Vector
+ GeocentricMobilityModel::DoGetPosition() const
+ {
+-    return DoGetPosition(PositionType::TOPOCENTRIC);
++    // TODO: we should implement a proper way to understand what projection to use
++    return (GetEarthSpheroidType() == GeographicPositions::EarthSpheroidType::WGS84)
++               ? DoGetPosition(PositionType::PROJECTED)
++               : DoGetPosition(PositionType::TOPOCENTRIC);
+ }
+
+ void
+-- 
+2.41.0
+