X-Git-Url: https://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=tim%2Fprune%2Fdata%2FTrack.java;h=83ac9547f3ede67149ee5a1d0cce85758d45adae;hp=d33886ea3f22eb2eee5057cba3bbd6a2cd9a8524;hb=c0387c124840c9407e040600fda88f3c3e8f6aa6;hpb=1ee49ae3c8ef3aa2e63eadd458531e5f8bd4f92c

diff --git a/tim/prune/data/Track.java b/tim/prune/data/Track.java
index d33886e..83ac954 100644
--- a/tim/prune/data/Track.java
+++ b/tim/prune/data/Track.java
@@ -748,11 +748,14 @@ public class Track
 	}
 
 	/**
-	 * @return true if track has altitude data (which are not all zero)
+	 * @return true if track has altitude data
 	 */
 	public boolean hasAltitudeData()
 	{
-		return getAltitudeRange().getMaximum() > 0;
+		for (int i=0; i<_numPoints; i++) {
+			if (_dataPoints[i].hasAltitude()) {return true;}
+		}
+		return false;
 	}
 
 	/**