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GblTrajectoryJna.java
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GblTrajectoryJna.java
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package org.hps.recon.tracking.gbl;
import java.util.List;
import org.apache.commons.math3.util.Pair;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.DoubleByReference;
import com.sun.jna.ptr.IntByReference;
import org.hps.recon.tracking.gbl.matrix.Matrix;
import org.hps.recon.tracking.gbl.matrix.SymMatrix;
import org.hps.recon.tracking.gbl.matrix.Vector;
/**
* wrapper class for GblTrajectory JNA functions
* <p>
* This class re-promotes these JNA functions to be
* class member functions while providing some translation
* capabilities form java types into their C-style
* counterparts required by JNA.
* <p>
* <b>Note</b>: While the points are passed into this constructor,
* the memory owned by those points is never owned by this
* class. It is up to the user to delete the points when they
* are done using them.
*/
public class GblTrajectoryJna {
private Pointer self;
// copy a java-style list into a JNA C-style array that can then be copied into a std vector in GBL
public GblTrajectoryJna(List<GblPointJna> points, boolean flagCurv, boolean flagU1dir, boolean flagU2dir) {
Pointer [] ppoints = new Pointer[points.size()];
int ipoint=-1;
for (GblPointJna point : points) {
ipoint+=1;
ppoints[ipoint] = point.getPtr();
}
self = GblInterface.INSTANCE.GblTrajectoryCtorPtrArray(ppoints, points.size(),
flagCurv?1:0, flagU1dir?1:0, flagU2dir?1:0);
if (self == Pointer.NULL)
System.out.println("Failed generating trajectory");
}
//Simple trajectory constructor with seed
public GblTrajectoryJna(List<GblPointJna> points, int aLabel, Matrix seed, boolean flagCurv, boolean flagU1dir, boolean flagU2dir) {
Pointer [] ppoints = new Pointer[points.size()];
int ipoint=-1;
for (GblPointJna point : points) {
ipoint+=1;
ppoints[ipoint] = point.getPtr();
}
if (seed.getRowDimension() != 5 || seed.getColumnDimension() != 5)
throw new RuntimeException("GBLTrajectoryJna::Seed must be 5x5 matrix.\n");
//The seed is 5x5 matrix
double [] seedArray = seed.getColumnPackedCopy();
self = GblInterface.INSTANCE.GblTrajectoryCtorPtrArraySeed(ppoints, points.size(), aLabel, seedArray, flagCurv?1:0, flagU1dir?1:0, flagU2dir?1:0);
}
//Composed (curved) trajectory constructor from a list of points and transformation (at inner (first) point)
//Only 2 tracks, supported for the moment
public GblTrajectoryJna(List < Pair <List<GblPointJna>, Matrix> > PointsAndTransList) {
Pointer [] ppoints_1 = new Pointer[PointsAndTransList.get(0).getFirst().size()];
Pointer [] ppoints_2 = new Pointer[PointsAndTransList.get(0).getFirst().size()];
int npoints_1 = PointsAndTransList.get(0).getFirst().size();
int npoints_2 = PointsAndTransList.get(1).getFirst().size();
int ipoint=-1;
for (GblPointJna point : PointsAndTransList.get(0).getFirst()) {
ipoint+=1;
ppoints_1[ipoint] = point.getPtr();
}
ipoint=-1;
for (GblPointJna point : PointsAndTransList.get(1).getFirst()) {
ipoint+=1;
ppoints_1[ipoint] = point.getPtr();
}
double [] trafo_1 = PointsAndTransList.get(0).getSecond().getColumnPackedCopy();
double [] trafo_2 = PointsAndTransList.get(1).getSecond().getColumnPackedCopy();
self = GblInterface.INSTANCE.GblTrajectoryCtorPtrComposed(ppoints_1, npoints_1, trafo_1,
ppoints_2, npoints_2, trafo_2);
}
//to perform the full fit
public void fit(DoubleByReference Chi2, IntByReference Ndf, DoubleByReference lostWeight, String optionList) {
char[] c_optionList = optionList.toCharArray();
GblInterface.INSTANCE.GblTrajectory_fit(self, Chi2, Ndf, lostWeight, c_optionList,-999);
}
//To perform the fit removing a particular point
public void fit(DoubleByReference Chi2, IntByReference Ndf, DoubleByReference lostWeight, String optionList, int aLabel) {
char [] c_optionList = optionList.toCharArray();
GblInterface.INSTANCE.GblTrajectory_fit(self, Chi2, Ndf, lostWeight, c_optionList, aLabel);
}
public void addPoint(GblPointJna point) {
GblInterface.INSTANCE.GblTrajectory_addPoint(self, point.getPtr());
}
public boolean isValid () {
return (GblInterface.INSTANCE.GblTrajectory_isValid(self)!=0);
}
public int getNumPoints() {
return GblInterface.INSTANCE.GblTrajectory_getNumPoints(self);
}
public void printTrajectory(int level) {
GblInterface.INSTANCE.GblTrajectory_printTrajectory(self,level);
}
public void printData() {
GblInterface.INSTANCE.GblTrajectory_printData(self);
}
public void printPoints(int level) {
GblInterface.INSTANCE.GblTrajectory_printPoints(self,level);
}
//Call delete on the underlying objects
public void delete() {
GblInterface.INSTANCE.GblTrajectory_delete(self);
}
public void getMeasResults(int aLabel, int numData[], List<Double> aResiduals,List<Double> aMeasErrors, List<Double> aResErrors, List<Double> aDownWeights) {
double[] d_aResiduals = new double[2];
double[] d_aMeasErrors = new double[2];
double[] d_aResErrors = new double[2];
double[] d_aDownWeights = new double[2];
GblInterface.INSTANCE.GblTrajectory_getMeasResults(self, aLabel, numData, d_aResiduals, d_aMeasErrors, d_aResErrors, d_aDownWeights);
for (int i=0; i<2; i++) {
aResiduals.add(d_aResiduals[i]);
aMeasErrors.add(d_aMeasErrors[i]);
aResErrors.add(d_aResErrors[i]);
aDownWeights.add(d_aDownWeights[i]);
}
}
//!! Only 5-localPar and 5x5 local Cov for the moment
public int getResults(int aSignedLabel, Vector localPar, SymMatrix localCov) {
double[] d_localPar = new double[5];
double[] d_localCov = new double[25];
int[] nLocalPar = new int[1];
int[] sizeLocalCov = new int[1];
GblInterface.INSTANCE.GblTrajectory_getResults(self,aSignedLabel,d_localPar,nLocalPar,d_localCov,sizeLocalCov);
for (int i=0; i<5; i++) {
localPar.set(i,d_localPar[i]);
}
for (int i=0; i<5; i++) {
for (int j=0; j<5; j++) {
localCov.set(i,j,d_localCov[i+5*j]);
}
}
return 0;
}
public void milleOut(MilleBinaryJna millebinary) {
GblInterface.INSTANCE.GblTrajectory_milleOut(self, millebinary.getPtr());
}
}