comparison layer/Colour3DPlotLayer.cpp @ 463:1461cfc7e446

* The main fix here is to the arguments of SVApplication -- the first
one should be int& rather than int (was causing a crash! gah!)
  Various other tiny fixes

 }
 
 void
 Colour3DPlotLayer::paintDense(View *v, QPainter &paint, QRect rect) const
 {
+    if (!m_cache) return;
+
     size_t modelStart = m_model->getStartFrame();
     size_t modelResolution = m_model->getResolution();
 
     float srRatio =
         float(v->getViewManager()->getMainModelSampleRate()) /