X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fschemes%2FAnnotationColourGradient.java;h=c74fdbc62f83ce0dd089217dd817b08685d37483;hb=424648b2e57e45eaa21c006b44828d8fca418581;hp=220d3ab84f3ddcf6846ac6869f0305ae5287cb42;hpb=136c0793b90b72b928c4d77dc109dd5c644e00d3;p=jalview.git

diff --git a/src/jalview/schemes/AnnotationColourGradient.java b/src/jalview/schemes/AnnotationColourGradient.java
index 220d3ab..c74fdbc 100755
--- a/src/jalview/schemes/AnnotationColourGradient.java
+++ b/src/jalview/schemes/AnnotationColourGradient.java
@@ -185,18 +185,19 @@ public class AnnotationColourGradient extends FollowerColourScheme
       }
       else
       {
-        seqannot = new IdentityHashMap<SequenceI, AlignmentAnnotation>();
+        seqannot = new IdentityHashMap<>();
       }
       // resolve the context containing all the annotation for the sequence
-      AnnotatedCollectionI alcontext = alignment instanceof AlignmentI ? alignment
+      AnnotatedCollectionI alcontext = alignment instanceof AlignmentI
+              ? alignment
               : alignment.getContext();
       boolean f = true, rna = false;
-      for (AlignmentAnnotation alan : alcontext.findAnnotation(annotation
-              .getCalcId()))
+      for (AlignmentAnnotation alan : alcontext
+              .findAnnotation(annotation.getCalcId()))
       {
         if (alan.sequenceRef != null
-                && (alan.label != null && annotation != null && alan.label
-                        .equals(annotation.label)))
+                && (alan.label != null && annotation != null
+                        && alan.label.equals(annotation.label)))
         {
           if (!rna && alan.isRNA())
           {
@@ -252,8 +253,8 @@ public class AnnotationColourGradient extends FollowerColourScheme
 
   public Color getMaxColour()
   {
-    return new Color(redMin + redRange, greenMin + greenRange, blueMin
-            + blueRange);
+    return new Color(redMin + redRange, greenMin + greenRange,
+            blueMin + blueRange);
   }
 
   /**
@@ -287,8 +288,9 @@ public class AnnotationColourGradient extends FollowerColourScheme
     /*
      * locate the annotation we are configured to colour by
      */
-    AlignmentAnnotation ann = (seqAssociated && seqannot != null ? seqannot
-            .get(seq) : this.annotation);
+    AlignmentAnnotation ann = (seqAssociated && seqannot != null
+            ? seqannot.get(seq)
+            : this.annotation);
 
     /*
      * if gap or no annotation at position, no colour (White)
@@ -316,8 +318,10 @@ public class AnnotationColourGradient extends FollowerColourScheme
      */
     if (annotationThreshold != null)
     {
-      if ((aboveAnnotationThreshold == ABOVE_THRESHOLD && aj.value < annotationThreshold.value)
-              || (aboveAnnotationThreshold == BELOW_THRESHOLD && aj.value > annotationThreshold.value))
+      if ((aboveAnnotationThreshold == ABOVE_THRESHOLD
+              && aj.value < annotationThreshold.value)
+              || (aboveAnnotationThreshold == BELOW_THRESHOLD
+                      && aj.value > annotationThreshold.value))
       {
         return Color.white;
       }
@@ -354,8 +358,10 @@ public class AnnotationColourGradient extends FollowerColourScheme
           }
           else
           {
-            result = ann.annotations[j].secondaryStructure == 'H' ? AnnotationRenderer.HELIX_COLOUR
-                    : ann.annotations[j].secondaryStructure == 'E' ? AnnotationRenderer.SHEET_COLOUR
+            result = ann.annotations[j].secondaryStructure == 'H'
+                    ? AnnotationRenderer.HELIX_COLOUR
+                    : ann.annotations[j].secondaryStructure == 'E'
+                            ? AnnotationRenderer.SHEET_COLOUR
                             : AnnotationRenderer.STEM_COLOUR;
           }
         }
@@ -408,14 +414,17 @@ public class AnnotationColourGradient extends FollowerColourScheme
             && aboveAnnotationThreshold == ABOVE_THRESHOLD
             && value >= ann.threshold.value)
     {
-      range = (value - ann.threshold.value)
+      range = ann.graphMax == ann.threshold.value ? 1f
+              : (value - ann.threshold.value)
               / (ann.graphMax - ann.threshold.value);
     }
     else if (thresholdIsMinMax && ann.threshold != null
             && aboveAnnotationThreshold == BELOW_THRESHOLD
             && value <= ann.threshold.value)
     {
-      range = (value - ann.graphMin) / (ann.threshold.value - ann.graphMin);
+      range = ann.graphMin == ann.threshold.value ? 0f
+              : (value - ann.graphMin)
+                      / (ann.threshold.value - ann.graphMin);
     }
     else
     {