comparison layer/SpectrumLayer.cpp @ 1396:2e316a724336

Fix compiler warning

             double value = fft->getValueAt(col, bin);
             if (value < thresh) continue;
             if (bin < cs) value *= curve[bin];
             
             double norm = 0.f;
-            // we need the norm here for colour map; the y coord is
-            // only used to pick a label height if illuminating the
-            // local point
-            double y = getYForValue(v, value, norm);
+            // we only need the norm here, for the colour map
+            (void)getYForValue(v, value, norm);
 
             QColor colour = mapper.map(norm);
             
             paint.setPen(QPen(colour, 1));
             paint.drawLine(x, 0, x, v->getPaintHeight() - scaleHeight - 1);