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fixup: normalize vector to satellite

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This commit is contained in:
Tim Schubert 2020-07-29 09:46:45 +02:00
parent 3fb0969930
commit f6786c3a66
2 changed files with 4 additions and 3 deletions
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3
model/leo-propagation-loss-model.cc
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@ -46,8 +46,9 @@ LeoPropagationLossModel::~LeoPropagationLossModel ()
double double
LeoPropagationLossModel::GetAngle (Ptr<MobilityModel> a, Ptr<MobilityModel> b) LeoPropagationLossModel::GetAngle (Ptr<MobilityModel> a, Ptr<MobilityModel> b)
{ {
Vector3D pa = a->GetPosition (); Vector3D pa = a->GetPosition () - b->GetPosition ();
Vector3D pb = b->GetPosition (); Vector3D pb = b->GetPosition ();
pb = Vector3D (-pb.x, -pb.y, -pb.z);
double prod = abs ((pa.x * pb.x) + (pa.y * pb.y) + (pa.z * pb.z)); double prod = abs ((pa.x * pb.x) + (pa.y * pb.y) + (pa.z * pb.z));
double norm = pb.GetLength () * pa.GetLength (); double norm = pb.GetLength () * pa.GetLength ();

4
test/leo-propagation-test-suite.cc
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@ -36,7 +36,7 @@ LeoPropagationAngleTestCase1::DoRun (void)
double angle = LeoPropagationLossModel::GetAngle (a, b); double angle = LeoPropagationLossModel::GetAngle (a, b);
NS_TEST_ASSERT_MSG_EQ ((1.570 < angle && angle < 1.571), true, "Angle should be 90 deg."); NS_TEST_ASSERT_MSG_EQ ((M_PI/4 - 0.1 < angle && angle < M_PI/4 + 0.1), true, "Angle should be 90 deg.");
} }
class LeoPropagationAngleTestCase2 : public TestCase class LeoPropagationAngleTestCase2 : public TestCase
@ -68,7 +68,7 @@ LeoPropagationAngleTestCase2::DoRun (void)
double angle = LeoPropagationLossModel::GetAngle (a, b); double angle = LeoPropagationLossModel::GetAngle (a, b);
NS_TEST_ASSERT_MSG_EQ ((-0.1 < angle && angle < 0.1), true, "Angle should be 0 deg."); NS_TEST_ASSERT_MSG_EQ (isnan(angle), true, "Angle should be 0 deg.");
} }
class LeoPropagationAngleTestCase3 : public TestCase class LeoPropagationAngleTestCase3 : public TestCase