JAL-1373 generate percentages with appropriate precision

[jalview.git] / src / jalview / analysis / StructureFrequency.java

diff --git a/src/jalview/analysis/StructureFrequency.java b/src/jalview/analysis/StructureFrequency.java
index fe022c0..948bdc1 100644 (file)
--- a/src/jalview/analysis/StructureFrequency.java
+++ b/src/jalview/analysis/StructureFrequency.java
@@ -21,6 +21,7 @@ package jalview.analysis;
 
 import java.util.*;
 
+import jalview.util.Format;
 import jalview.datamodel.*;
 
 /**
@@ -309,6 +310,18 @@ public class StructureFrequency
       // initialised properly
       return;
     }
+    String fmtstr="%3.1f";
+    int precision=2;
+    while (nseq>100) {
+      precision++;
+      nseq/=10;
+    }
+    if (precision>2)
+    {
+      fmtstr = "%"+(2+precision)+"."+precision+"f";
+    }
+    Format fmt = new Format(fmtstr);
+    
     for (int i = iStart; i < width; i++)
     {
       Hashtable hci;
@@ -385,7 +398,7 @@ public class StructureFrequency
             tval = (vl[c] * 100f / profile[1][ignoreGapsInConsensusCalculation ? 1
                     : 0]);
             mouseOver += ((p == 0) ? "" : "; ") + (char) ((int[]) ca[c])[0]
-                    + (char) ((int[]) ca[c])[1] + " " + ((int) tval) + "%";
+                    + (char) ((int[]) ca[c])[1] + " " + fmt.form(tval) + "%";
             p++;
 
           }
@@ -395,7 +408,7 @@ public class StructureFrequency
       }
       else
       {
-        mouseOver += ((int) value + "%");
+        mouseOver += (fmt.form(value) + "%");
       }
       consensus.annotations[i] = new Annotation(maxRes, mouseOver, ' ',
               value);