X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fworkers%2FAlignCalcWorker.java;fp=src%2Fjalview%2Fworkers%2FAlignCalcWorker.java;h=771c4922c630feca8cd76e2fe74d70c43e40ed26;hb=0f40a8334651302a74a223ecd3e583451302bb42;hp=7719c888182aa1daf6a47cfff4a839587d48082e;hpb=ebca5f7880f838a5564dd419274ad6025b456dab;p=jalview.git

diff --git a/src/jalview/workers/AlignCalcWorker.java b/src/jalview/workers/AlignCalcWorker.java
index 7719c88..771c492 100644
--- a/src/jalview/workers/AlignCalcWorker.java
+++ b/src/jalview/workers/AlignCalcWorker.java
@@ -26,6 +26,7 @@ import jalview.api.AlignViewportI;
 import jalview.api.AlignmentViewPanel;
 import jalview.datamodel.AlignmentAnnotation;
 import jalview.datamodel.AlignmentI;
+import jalview.datamodel.Annotation;
 
 import java.util.List;
 
@@ -103,4 +104,33 @@ public abstract class AlignCalcWorker implements AlignCalcWorkerI
     return false;
   }
 
+  /**
+   * Calculate min and max values of annotations and set as graphMin, graphMax
+   * on the AlignmentAnnotation. This is needed because otherwise, well, bad
+   * things happen.
+   * 
+   * @param ann
+   * @param anns
+   */
+  protected void setGraphMinMax(AlignmentAnnotation ann, Annotation[] anns)
+  {
+    // TODO feels like this belongs inside AlignmentAnnotation!
+    float max = Float.MIN_VALUE;
+    float min = Float.MAX_VALUE;
+    boolean set = false;
+    for (Annotation a : anns) {
+      if (a != null) {
+        set = true;
+        float val = a.value;
+        max = Math.max(max, val);
+        min = Math.min(min, val);
+      }
+    }
+    if (set)
+    {
+      ann.graphMin = min;
+      ann.graphMax = max;
+    }
+  }
+
 }