Added comment about sign conventions for the source

src/pulsaranimationwidget.cpp

@@ -536,6 +536,14 @@ void PulsarAnimationWidget::updateCameraPosition(const double angleH, const doub
 
 void PulsarAnimationWidget::setSourceInclination(const double degrees)
 {
+
+   // This sign convention differs from my notes.  In my notes,
+   // increasing psi means that the orbital ellipse rotates CCW when
+   // viewed from above.  But the convention in LAL is that increasing
+   // psi rotates the ellipse CCW when viewed from Earth, and CW when
+   // viewed from above.  So I have adjusted this code to be
+   // consistent with LAL, and inserted a factor of -1 in my code.
+   // Bruce
     m_sourceInclination = degrees;
     updatePulseProfile();
 
@@ -596,6 +604,14 @@ void PulsarAnimationWidget::updatePulseProfile()
     struct OutputStruct out;
 
     in.iota = m_sourceIota;
+
+    // This sign convention for in.psi differs from my notes.  In my
+    // notes, increasing psi means that the orbital ellipse rotates
+    // CCW when viewed from above.  But the convention in LAL is that
+    // increasing psi rotates the ellipse CCW when viewed from Earth,
+    // and CW when viewed from above.  So I have adjusted this code to
+    // be consistent with LAL, and inserted a factor of -1 in my code.
+    // Bruce
     in.psi = m_sourceInclination;
     in.orientation[0] = m_LLOAngle;
     in.orientation[1] = m_LHOAngle;