Radial heat map not renderering NaN properly. Refs #262

Author: mikekucera

EnrichmentMapPlugin/src/main/java/org/baderlab/csplugins/enrichmentmap/style/charts/radialheatmap/RadialHeatMapLayer.java

@@ -148,7 +148,7 @@ protected JFreeChart createChart(final PieDataset dataset) {
 			Double v =  values.size() > i ? values.get(i) : null;
 			final Color c;
 
-			if (v == null) {
+			if (v == null || !Double.isFinite(v)) {
 				c = nanColor;
 			} else {
 				if (colorPoints.isEmpty() || colorPoints.size() != colors.size())