class HParticleMetaMatcher: public HReconstructor

 returns null pointer if s,col,cell are invalid
 returns HGeomVector* to first element of array of 4 HGeomVectors
 for the shape of the cell in mod sys

 returns null pointer if s,mod,cell are invalid
 returns HGeomVector* to first element of array of 4 HGeomVectors
 for the shape of the cell in mod sys

 returns null pointer if s,cell are invalid
 returns HGeomVector* to first element of array of 4 HGeomVectors
 for the shape of the cell in mod sys

 in sector sys : calc p1 p2 points (not MDC Hit!) on MdcSeg

 Finds the intersection point of a straight line with any plane.
 pointIntersect: the intersection point (return value).
 pos:            a point on the straight line.
 dir:            direction of the straight line.
 planeCenter:    a point on the plane.
 planeNormal:    normal vector of the plane.

 calculate intersection of outer MdcSeg (RK) straightline with META plane
 in sector sys

  check if vmodule (mod system) is inside cell (2D) Trapez

       p1---------------p2
b\
\
        p0-------------p3
              a

 checks if HGeomVector* vmodule

 returns neighbour cell indices for a given cell
 in the order

  0   1    2
  3   4(cell) 5
  6   7    8
  into vcells (-1 if cell does not exist)

 Get categories and coordinate transformations.
 Call this after HADES has been initialized.

 returns HRpcCluster pointer to an object owned by HParticleMetaMatcher
 which has been reconstructed from an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane. The original META
 hit position can be restorded using RK dx, dy from HParticleCand.
 Works for candidates which have cand->isRpcClstUsed() set.
 The hit point of RK on the META plane can be retrieved by
 calling
 const HGeomVector&  getTrackMetaMod()
 const HGeomVector&  getTrackMetaSec()
 const HGeomVector&  getTrackMetaLab()
 directly after calling this function.

 returns HTofCluster pointer to an object owned by HParticleMetaMatcher
 which has been reconstructed from an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane. The original META
 hit position can be restorded using RK dx, dy from HParticleCand.
 Works for candidates which have cand->isTofClstUsed() or cand->isTofHitUsed() set.
 The hit point of RK on the META plane can be retrieved by
 calling
 const HGeomVector&  getTrackMetaMod()
 const HGeomVector&  getTrackMetaSec()
 const HGeomVector&  getTrackMetaLab()
 directly after calling this function.

 returns HEmcCluster pointer to an object owned by HParticleMetaMatcher
 which has been reconstructed from an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane. The original META
 hit position can be restorded using RK dx dy from HParticleCand.
 Works for candidates which have cand->getEmcInd()!=-1 set.
 The hit point of RK on the META plane can be retrieved by
 calling
 const HGeomVector&  getTrackMetaMod()
 const HGeomVector&  getTrackMetaSec()
 const HGeomVector&  getTrackMetaLab()
 directly after calling this function.

 Reconstructs an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane.
 2 hits (hit0,hit2) on the Rpc planes of column (0,2,4)
 and (1,3,5). Possible hit RPC cells are returned
 by coordinates sector, (col0,cell0) (col1,cell1).
 colX and cellX are -1 if no cell has been hit on this plane.
 Works with all candidates which provide outer segments.

 Reconstructs an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane.
 2 hits (hit0,hit2) on the TOF module planes cand be
 returned. Possible hit TOF cells are returned
 by coordinates sector, (mod0,cell0) (mod1,cell1).
 colX and cellX are -1 if no cell has been hit on this plane.
 The hit points will be 0,0,0 in this case.
 Works with all candidates which provide outer segments.

 Reconstructs an intersection of HParticleCand outer
 segment of Runge Kutta with the META detector plane.
 1 hit on the EMC plane can be returned.
 The possible hit cell returned  by coordinates sector, pos (0-162) , cell (0,254).
 pos and cell are -1 if no cell has been hit on this plane.
 Works with all candidates which provide outer segments.