From 634c0e6df9bb8808bdb0710c24ee6a5203747f19 Mon Sep 17 00:00:00 2001
From: Oliver Bock <oliver.bock@aei.mpg.de>
Date: Fri, 16 Sep 2011 17:42:45 +0200
Subject: [PATCH] Keep pulse profile visible if pulsar doesn't spin
---
src/pulsaranimationwidget.cpp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/pulsaranimationwidget.cpp b/src/pulsaranimationwidget.cpp
index 935e000..32e14b6 100644
--- a/src/pulsaranimationwidget.cpp
+++ b/src/pulsaranimationwidget.cpp
@@ -789,12 +789,15 @@ void PulsarAnimationWidget::resetParameters()
void PulsarAnimationWidget::updatePulseProfile()
{
+ // avoid division by zero (keep profile visible if pulsar doesn't spin)
+ double pulsarRotationDelta = m_pulsarRotationDelta == 0.0 ? 0.01 : m_pulsarRotationDelta;
+
// prepare parameters (e.g. convert to radians where necessary)
const double i = deg2rad * m_pulsarSpinAxisInclination;
const double y = deg2rad * m_pulsarMagneticAxisInclination;
double phiOrb = deg2rad * (m_orbitRotationAngle + 90.0);
const double deltaPhiRot = deg2rad * 1.0;
- const double deltaPhiOrb = deg2rad * deltaPhiRot * m_orbitRotationDelta / m_pulsarRotationDelta;
+ const double deltaPhiOrb = deg2rad * deltaPhiRot * m_orbitRotationDelta / pulsarRotationDelta;
const double rp = m_pulsarSemiMajorAxis;
const double xk = -m_cameraPosZ;
const double yk = -m_cameraPosX;
--
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