Author: [log in to unmask]
Date: Mon Nov 16 16:41:28 2015
New Revision: 3963
Log:
Add option to create truth helix from specified MC particle origin.
Modified:
java/trunk/tracking/src/main/java/org/hps/recon/tracking/TrackUtils.java
Modified: java/trunk/tracking/src/main/java/org/hps/recon/tracking/TrackUtils.java
=============================================================================
--- java/trunk/tracking/src/main/java/org/hps/recon/tracking/TrackUtils.java (original)
+++ java/trunk/tracking/src/main/java/org/hps/recon/tracking/TrackUtils.java Mon Nov 16 16:41:28 2015
@@ -785,19 +785,34 @@
return !isTopTrack(htf);
}
+
/**
* Transform MCParticle into a Helix object. Note that it produces the helix
* parameters at nominal x=0 and assumes that there is no field at x<0
*
* @param mcp MC particle to be transformed
- * @return helix object based on the MC particle
+ * @return {@link HelicalTrackFit} object based on the MC particle
*/
public static HelicalTrackFit getHTF(MCParticle mcp, double Bz) {
+ return getHTF(mcp,mcp.getOrigin(),Bz);
+ }
+
+
+
+ /**
+ * Transform MCParticle into a Helix object. Note that it produces the helix
+ * parameters at nominal x=0 and assumes that there is no field at x<0
+ *
+ * @param mcp MC particle to be transformed
+ * @param org origin to be used for the track
+ * @return {@link HelicalTrackFit} object based on the MC particle
+ */
+ public static HelicalTrackFit getHTF(MCParticle mcp, Hep3Vector origin, double Bz) {
boolean debug = false;
- if (debug) System.out.printf("getHTF\nmcp org %s mc p %s\n", mcp.getOrigin().toString(), mcp.getMomentum().toString());
+ if (debug) System.out.printf("getHTF\nmcp org %s origin used %s mc p %s\n", mcp.getOrigin().toString(),origin.toString(), mcp.getMomentum().toString());
- Hep3Vector org = CoordinateTransformations.transformVectorToTracking(mcp.getOrigin());
+ Hep3Vector org = CoordinateTransformations.transformVectorToTracking(origin);
Hep3Vector p = CoordinateTransformations.transformVectorToTracking(mcp.getMomentum());
if (debug) System.out.printf("mcp org %s mc p %s (trans)\n", org.toString(), p.toString());
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