altosuilib: Allow for unitless axes in graphs

DOP values have no units.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altosuilib/AltosUIAxis.java b/altosuilib/AltosUIAxis.java
index 1b5b92053cace56d7d0e9e34431e28c7fc7fec2e..9e98ddb77bb7cade58e5132d27352eecbe17387f 100644 (file)
--- a/altosuilib/AltosUIAxis.java
+++ b/altosuilib/AltosUIAxis.java
@@ -48,7 +48,11 @@ public class AltosUIAxis extends NumberAxis {
        public final static int axis_default = axis_include_zero;
 
        public void set_units() {
        public final static int axis_default = axis_include_zero;
 
        public void set_units() {

-               setLabel(String.format("%s (%s)", label, units.show_units()));
+               String u = units.show_units();
+               if (u != null)
+                       setLabel(String.format("%s (%s)", label, u));
+               else
+                       setLabel(label);

        }
 
        public void set_enable(boolean enable) {
        }
 
        public void set_enable(boolean enable) {