#ifndef HGEOTRAP_H
#define HGEOTRAP_H

#include "hgeobasicshapes.h"

//
// class for Geant-shape TRAP
// derived from baseclass HGeoBasicShapes
//
// To read the 8 xyz-points from database or file the function readPoints(...)
// in the baseclass is used.
//
// To position a volume in its mother different functions are called in the
// routine posShape(...) depending on the shape of the mother. Uptil now it's
// possible to position a BOX in a mother with shape PGON (works also for 
// mothervolume CAVE) or TRAP
// In these functions posIn...(...) the position of the Geant-origin in the
// intrisic coordinate-system of the detector is calculated and stored in the
// vector geaPos of class HGeoParam. This information is needed to calculate the
// position of daughtervolumes. The Geant-position of the volume inside its
// mother is calculated and stored in the vector pos of class HGeoShapePar. Where
// needed a Geant-rotationalmatrix is created via Geantroutine GSROTM and the
// number stored in nRot of class HGeoShapePar. Otherwise nRot is set to 0.
//

class HGeoTrap : public HGeoBasicShapes {
public:
	HGeoTrap(){}
	~HGeoTrap(){}

	// calculates the Geant-shapeparameters
	void calcShape(HGeoParam & ele, HGeoShapePar & shapePar);

	// calls different functions to position the volume depending on the
	// shape of its mother
	int posShape(HGeoParam & ele, HGeoParam & mo, HGeoShapePar & shapePar);

	// positions a BOX in a PGON (works also for mothervolume CAVE)
	void posInPgon(HGeoParam & ele, HGeoParam & mo, HGeoShapePar & shapePar);

	// positions a BOX in a TRAP
	void posInTrap(HGeoParam & ele, HGeoParam & mo, HGeoShapePar & shapePar);
};

#endif