--- java/trunk/users/src/main/java/org/hps/users/phansson/TrackingGeometryChecker.java	                        (rev 0)
+++ java/trunk/users/src/main/java/org/hps/users/phansson/TrackingGeometryChecker.java	2014-09-06 23:28:25 UTC (rev 965)
@@ -0,0 +1,65 @@

+package org.hps.users.phansson;
+
+import java.util.List;
+
+import org.lcsim.event.EventHeader;
+import org.lcsim.event.SimTrackerHit;
+import org.lcsim.geometry.Detector;
+import org.lcsim.util.Driver;
+
+/**	 
+ * Check tracking geometry.
+ * @author Per Hansson Adrian <[log in to unmask]>
+ *
+ */
+public class TrackingGeometryChecker extends Driver {
+
+	private int debug = 1;
+
+	/**
+	 * Check tracking geometry.
+	 */
+	public TrackingGeometryChecker() {
+	}
+	
+	protected void detectorChanged(Detector arg0) {
+		super.detectorChanged(arg0);
+	}
+	
+	protected void startOfData() {
+		super.startOfData();
+	}
+	
+	protected void process(EventHeader event) {
+		
+		List<SimTrackerHit> simTrackerHits = event.getSimTrackerHits("TrackerHits");
+        if (simTrackerHits == null) {
+            throw new RuntimeException("Missing SimTrackerHit collection");
+        }
+        
+        if(debug>0) System.out.printf("%s: found %d simTrackerHits\n",getClass().getSimpleName(),simTrackerHits.size());
+        for(SimTrackerHit simTrackerHit : simTrackerHits) {
+        	if(debug>0) printSimTrackerHitInfo(simTrackerHit);
+        }
+	}
+	
+	protected void endOfData() {
+		super.endOfData();
+	}
+
+	protected int getDebug() {
+		return debug;
+	}
+
+	protected void setDebug(int debug) {
+		this.debug = debug;
+	}
+
+	private static void printSimTrackerHitInfo(SimTrackerHit simTrackerHit) {
+		System.out.printf("\nSimTrackerHit:\n");
+		System.out.printf("\t position: %s\n",simTrackerHit.getPositionVec().toString());
+		System.out.printf("\t DetectorElement: %s\n",simTrackerHit.getDetectorElement().getName());
+	}
+}
+
+