Hello Jeremy,

There is a wrapper class, I believe (GTPClusterDriver), but it does not have a set method for the seed energy. Also, the clustering algorithm does not seem to support storing the "limitClusterRange" parameter outside the algorithm itself. Can I add support for setting the seed energy threshold with the code

    public void setSeedEnergyThreshold(double seedEnergyThreshold) {
        getClusterer().getCuts().setValue("seedEnergyThreshold", seedEnergyThreshold);
    }

in GTPClusterDriver? How can support be added for the "limitClusterRange" parameter? This is a boolean that indicates whether the algorithm should use an asymmetric clustering window or not.

Thanks,

Kyle

On Wed, Jan 21, 2015 at 4:05 PM, McCormick, Jeremy I. <[log in to unmask]> wrote:

Hi, Kyle.

> How do I define the parameters (such as the seed hit energy threshold) in the steering files with the new clustering algorithm?

If there is a “wrapper” Driver for the algorithm then you can just utilize the arguments in a steering file in the usual manner.  Should one of these Drivers not exist it is easy to add one.

Otherwise, to use the generic clustering Driver, you can pass a cuts array like…

<driver name=“ClusterDriver’ …>
    <clustererName>TheClusteringAlgo</clustererName>
    <cuts>1.0 2.0 3.0</cuts>
</driver>

The names of the cut parameters are defined in the constructor of each Clusterer.  (See its .java file.)

> Also, do you know how to get the proper xyz coordinates from a crystal's x/y indices? I need to do this in order to set the cluster position in the GTP clustering algorithm as you asked.


Probably the easiest way if you have a hit is….

hit.getDetectorElement().getGeometryInfo().getPosition();

which gets the crystal’s position from the geometry object.

—Jeremy

On Jan 21, 2015, at 4:41 AM, Kyle McCarty <[log in to unmask]> wrote:

> Hello Jeremy,
>
> How do I define the parameters (such as the seed hit energy threshold) in the steering files with the new clustering algorithm?
>
> Also, do you know how to get the proper xyz coordinates from a crystal's x/y indices? I need to do this in order to set the cluster position in the GTP clustering algorithm as you asked.
>
> Thanks,
>
> Kyle