JAL-2068 code and test for case of minValue == maxValue

[jalview.git] / src / jalview / util / ColorUtils.java

diff --git a/src/jalview/util/ColorUtils.java b/src/jalview/util/ColorUtils.java
index 042654d..31d1ded 100644 (file)
--- a/src/jalview/util/ColorUtils.java
+++ b/src/jalview/util/ColorUtils.java
@@ -117,6 +117,10 @@ public class ColorUtils
   public static Color getGraduatedColour(float value, float minValue,
           Color minColour, float maxValue, Color maxColour)
   {
+    if (minValue == maxValue)
+    {
+      return minColour;
+    }
     if (value < minValue)
     {
       value = minValue;